Closed Bug 419695 Opened 16 years ago Closed 16 years ago

Firefox 3 beta4 crashes on new Yahoo mail [@ js_GetGCThingTraceKind]

Categories

(Core :: JavaScript Engine, defect, P2)

defect

Tracking

()

VERIFIED FIXED
mozilla1.9beta5

People

(Reporter: r_rom, Assigned: dbaron)

References

Details

(Keywords: crash)

Crash Data

Attachments

(9 files)

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9b4pre) Gecko/2008022604 Minefield/3.0b4pre
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9b4pre) Gecko/2008022604 Minefield/3.0b4pre

Now that bug 398381 is fixed, another one has showed up, and it's worse than the one that got fixed: Firefox crashes very frequently (if not immediately, then after a few operations done with Yahoo Mail UI). This has been happening with several builds of FF. 

I haven't been able to notice a reliable trigger for the crash, but I have had it crash, at least, when I pressed 'v' see a message.

Some crashes have been reported to Mozilla by the crash reporter, but others have not. For some crashes the Crash Reporter hasn't activated, and there are not even reports in pending state for them.

The crashes occur for my old profile with a bunch of extensions (most of which have been disabled by FF) AND for a new one.

As of now, I declare Firefox 3 unusable for Yahoo Mail's new UI.

Reproducible: Always
I can't repro on Linux unfortunately. Can you paste the ids for the crashes where Crash Reporter was able to send in data?
Here they are, Bob: a8a22f30-e424-11dc-99f9-001a4bd43e5c, 30a8850f-e24e-11dc-8d52-001a4bd43e5c, 27de547d-e24d-11dc-8260-001a4bd43ef6. There are more, but I am not sure if they are for Yahoo related crashes. For these three, I am relatively confident they are.

Could somebody educate me why Firefox can't prevent all crashes? Isn't it possible to have a try/catch block in the main function that would catch all exceptions or something to this effect?
Trying out a recent local-build with Yahoo! Mail, I'm not able to observe a crash.  I do get some errors that seem to prevent the new interface from working quite right, but no crash.
The first error is:
====
Yahoo! Mail experienced a login error: 

name:NS_ERROR_DOM_WRONG_DOCUMENT_ERR
message:Node cannot be used in a document other than the one in which it was created
lineNumber:463
====
The second error, occurring shortly after:

Yahoo! Mail experienced a login error: Login error:
name:TypeError
message:j is null
lineNumber:648
fileName:http://mail.yimg.com/us.js.yimg.com/combo?/pim/r/dclient/g/js/core/40ed4e2d8d7c4fedfd40ff2da621022e_1.js&/pim/r/dclient/g/js/launch/8f7e5aa4beb78311833eddc3334a14e5_1.js
====
I just tried beta 3 and saw that the behavior reported in bug 398381 is still there for me. So, it seems that later versions of Firefox 3 beta (after beta 3) have managed to hide this particular bug and led to crashes. Until FF crashes, Yahoo Mail works fine. 

I hope this bug will be useful to FF developers anyway.
(In reply to comment #5)
> name:NS_ERROR_DOM_WRONG_DOCUMENT_ERR

You're not using a recent enough build (you need one that has the patch from bug 418755).
yeah, woops.  Mac OS X picked up a different version of minefield from a URL click.  Works brilliantly, no crash.
Status: UNCONFIRMED → RESOLVED
Closed: 16 years ago
Resolution: --- → WORKSFORME
Brian, until it stops crashing for me, please don't "solve" this issue as WORKSFORME.
Status: RESOLVED → UNCONFIRMED
Resolution: WORKSFORME → ---
Roman:  Until you've tried with a recent nightly (find one here: ftp://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/), please don't reopen.
Status: UNCONFIRMED → RESOLVED
Closed: 16 years ago16 years ago
Resolution: --- → WORKSFORME
Brian, as you can see from the User-Agent string in my report, I am using exactly the build you'd like me to use. Perhaps, the difference in what we observe comes from the difference in OSs and/or platforms we're using. So, I am reopening the issue.
Status: RESOLVED → UNCONFIRMED
Resolution: WORKSFORME → ---
Version: unspecified → Trunk
Well, I'm not going to arm-wrestle you over the bug status, Roman, but I cannot reproduce this bug on a fresh build on my Windows machine, even with gczeal set to 2.
Roman, I think Brian should close as WORKSFORME or INVALID since you were using an untested build of FF (by yahoo) with an old version of YMail. Please retry next week and if the issue persist reopen it or create a new bug.

Thank you
You, folks, do whatever you want with this report. It's just my opinion that Firefox shouldn't crash, no matter whether Yahoo's code is old or super new or whether Yahoo has tested this build of FF. If it crashes now, and nothing related to the cause is changed, the problem will likely to emerge later, with Yahoo or another site. An application should be robust enough to handle unexpected use cases without crashing.

Brian, thanks for not arm-wrestling me :)  Also, the fact that you can't reproduce the bug on your machine just shows how valuable it is to have testers using different systems. Ignoring bugs (and closing them as WFM is ignoring them, in my opinion) discourages users from continuing to file reports. It takes time and efforts, you know.
Roman, I dont think that Mozilla or Yahoo have ignored your or someone else's bugs since people on both teams were looking at the issue right away.

But whenever you use a beta version of a browser or any other product you are subject to bugs that might had been fixed but the users can't see those fixes at that moment. And bugs that you submit can be closed as invalid, duplicated or worksforme depending on the situation

So bottom line, thank you for submitting the bug, i hope you keep doing it but this issue has been fixed and you just have to wait for the version to roll out. I am really confident that by the time Fx3 is released, there will be no issues with Ymail.

Manuel
Less talk, more attempts to reproduce or find how Roman's environment differs, if that matters. It's true that fixes are flying in at a high rate, along with more regressions, so it would be great if bug reporters could keep trying nightlies. I am confirming since this is a bona-fide report of a crash, undiagnosed so far.

Any new talkback ids? Please add a comment linkifying them.

/be
Status: UNCONFIRMED → NEW
Ever confirmed: true
roman, do you had yahoo messenger installed on your machine? crashes might be manifestation of bug 419127.
Keywords: crash, qawanted
Issue: 
Roman is using FF3 beta 4 with a non-compatible version of Ymail. 

With a FF3 beta <= 3 he will not even be able to log in. But it looks like on beta 4 the DOM error are hidden and therefore people using beta 4 and old mail are having crashes.

Solution:
Wait until the fixes for FF3 are finally rolled out.
Manuel, in reply to your comment #15 and comment #18: I think the issue is bigger than Yahoo Mail. Firefox crashed on that site, yes, but the crashes make a problem within Firefox visible. It's a symptom of a problem. It's better to eliminate the problem instead of covering up the symptom. I actually hope Yahoo doesn't change anything until Mozilla devs find the cause. Otherwise, the cause will be masked by Yahoo's changes and will show up in the future. It's better to eliminate the cause while FF is in beta state.

-fullmetaljacket-, no, I don't have yahoo messenger installed on my machine.

Chris Lee (the program manager for Yahoo Mail) asked me in bug 398381 to uninstall Firebug and try again. Here's what I did: uninstalled Firebug, installed Feb 28 2008 nightly build in a new directory, created a new profile, which I used to launch Firefox. After doing a few normal operations (pressing 'v', selecting different messages, going from one folder to another, etc.) on new Yahoo Mail, Firefox crashed again. How cleaner can you expect one's environment to be?

Note: crash reporter didn't get activated again. Is there another way to produce useful for devs information?
http://developer.mozilla.org/en/docs/How_to_get_a_stacktrace_with_WinDbg

please run firefox under windbg. if you need help, visit irc.mozilla.org, various people can walk you through it, or if they can't, they can find me and i'll handle the rest.
Roman, in case it isn't clear from the comments, your report and updates are very welcome and we should not close this bug until we've done more work. If you can get onto #developers on irc.mozilla.org and ask for help after firing up windbg, that would rock.

/be
Attached file dmp file
Attached file the extra file
Thank you, Brendan. I hope I'll be able to handle the debugger because I am a programmer myself.

Meanwhile, I had another crash, and unfortunately, the crash reporter was blocked by my firewall (I installed Firefox into a new dir, and this instance of the reporter wasn't hadn't been permitted to access the net). Since the reporter can't be forced to send pending reports, I attached the log files here hoping that somebody will be able to use them.

After this, I will run FF with the debugger and see if I can get it to crash. I know that using a debugger tool can prevent a crash (this, for instance, has happened to Opera -- crashed without the tool and didn't with it).
Here's output from the debugger. I'd understandably like to know if this has been helpful.

BTW, I had to issue the Go command, I think, 3 times for Firefox's window to show up.

This is FF installed into a new directory, and the profile is pretty new.
-------------

Microsoft (R) Windows Debugger Version 6.8.0004.0 X86
Copyright (c) Microsoft Corporation. All rights reserved.

CommandLine: "C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\firefox.exe"
Symbol search path is: *** Invalid ***
****************************************************************************
* Symbol loading may be unreliable without a symbol search path.           *
* Use .symfix to have the debugger choose a symbol path.                   *
* After setting your symbol path, use .reload to refresh symbol locations. *
****************************************************************************
Executable search path is: 
ModLoad: 00400000 00416000   firefox.exe
ModLoad: 77700000 7781e000   ntdll.dll
ModLoad: 77030000 77108000   C:\Windows\system32\kernel32.dll
ModLoad: 604a0000 60d30000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xul.dll
ModLoad: 60220000 60287000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\sqlite3.dll
ModLoad: 6bb30000 6bbdd000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\MOZCRT19.dll
ModLoad: 772e0000 7738a000   C:\Windows\system32\msvcrt.dll
ModLoad: 60100000 60197000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\js3250.dll
ModLoad: 600b0000 600e0000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nspr4.dll
ModLoad: 775a0000 7765f000   C:\Windows\system32\ADVAPI32.dll
ModLoad: 76de0000 76ea3000   C:\Windows\system32\RPCRT4.dll
ModLoad: 728b0000 728b7000   C:\Windows\system32\WSOCK32.dll
ModLoad: 76110000 7613d000   C:\Windows\system32\WS2_32.dll
ModLoad: 77820000 77826000   C:\Windows\system32\NSI.dll
ModLoad: 74af0000 74b23000   C:\Windows\system32\WINMM.dll
ModLoad: 77660000 776fe000   C:\Windows\system32\USER32.dll
ModLoad: 76140000 7618b000   C:\Windows\system32\GDI32.dll
ModLoad: 77110000 77254000   C:\Windows\system32\ole32.dll
ModLoad: 76280000 7630c000   C:\Windows\system32\OLEAUT32.dll
ModLoad: 74ab0000 74ae8000   C:\Windows\system32\OLEACC.dll
ModLoad: 60440000 60458000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\smime3.dll
ModLoad: 60350000 603f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nss3.dll
ModLoad: 60400000 60414000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssutil3.dll
ModLoad: 600f0000 600f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plc4.dll
ModLoad: 600e0000 600e7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plds4.dll
ModLoad: 60420000 6043e000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\ssl3.dll
ModLoad: 76310000 76dde000   C:\Windows\system32\SHELL32.dll
ModLoad: 77850000 778a5000   C:\Windows\system32\SHLWAPI.dll
ModLoad: 756c0000 756c8000   C:\Windows\system32\VERSION.dll
ModLoad: 72c70000 72cb1000   C:\Windows\system32\WINSPOOL.DRV
ModLoad: 77260000 772d4000   C:\Windows\system32\COMDLG32.dll
ModLoad: 74d60000 74ef4000   C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.6000.16386_none_5d07289e07e1d100\COMCTL32.dll
ModLoad: 76260000 7627e000   C:\Windows\system32\IMM32.dll
ModLoad: 75fc0000 76087000   C:\Windows\system32\MSCTF.dll
ModLoad: 75300000 75305000   C:\Windows\system32\MSIMG32.dll
ModLoad: 77520000 7759d000   C:\Windows\system32\USP10.dll
ModLoad: 60d30000 60d37000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xpcom.dll
(15fc.1234): Break instruction exception - code 80000003 (first chance)
eax=00000000 ebx=00000000 ecx=0012fb00 edx=77760f34 esi=fffffffe edi=777c5d14
eip=77742ea8 esp=0012fb18 ebp=0012fb48 iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000246
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for ntdll.dll - 
ntdll!DbgBreakPoint:
77742ea8 cc              int     3
0:000> .sympath SRV*c:\symbols*http://symbols.mozilla.org/firefox
Symbol search path is: SRV*c:\symbols*http://symbols.mozilla.org/firefox
0:000> .symfix+ c:\symbols
0:000> .reload /f
Reloading current modules
.*** WARNING: Unable to verify checksum for firefox.exe
....................................
0:000> g
ModLoad: 77840000 77849000   C:\Windows\system32\LPK.DLL
ModLoad: 71ea0000 71f7c000   C:\Windows\system32\dbghelp.dll
ModLoad: 75060000 7509f000   C:\Windows\system32\uxtheme.dll
ModLoad: 77390000 77519000   C:\Windows\system32\SETUPAPI.dll
ModLoad: 75e70000 75e8e000   C:\Windows\system32\USERENV.dll
ModLoad: 75e50000 75e64000   C:\Windows\system32\Secur32.dll
ModLoad: 74650000 74707000   C:\Windows\system32\PROPSYS.dll
ModLoad: 778b0000 77934000   C:\Windows\system32\CLBCatQ.DLL
ModLoad: 601a0000 601b4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\components\browserdirprovider.dll
ModLoad: 75650000 7568b000   C:\Windows\system32\mswsock.dll
ModLoad: 752f0000 752f6000   C:\Windows\System32\wshtcpip.dll
ModLoad: 75880000 75899000   C:\Windows\system32\iphlpapi.dll
ModLoad: 75840000 75875000   C:\Windows\system32\dhcpcsvc.DLL
ModLoad: 75ab0000 75adb000   C:\Windows\system32\DNSAPI.dll
ModLoad: 75830000 75837000   C:\Windows\system32\WINNSI.DLL
ModLoad: 75810000 75830000   C:\Windows\system32\dhcpcsvc6.DLL
ModLoad: 74270000 74322000   C:\Windows\system32\WindowsCodecs.dll
ModLoad: 75df0000 75e1c000   C:\Windows\system32\apphelp.dll
ModLoad: 10000000 10084000   TORTOISESVN.dll
ModLoad: 10000000 10084000   C:\Program Files\TortoiseSVN\bin\tortoisesvn.dll
ModLoad: 76190000 7625f000   C:\Windows\system32\WININET.dll
ModLoad: 77830000 77833000   C:\Windows\system32\Normaliz.dll
ModLoad: 76090000 760d5000   C:\Windows\system32\iertutil.dll
ModLoad: 6eec0000 6eee2000   C:\Program Files\TortoiseSVN\bin\libapr_tsvn.dll
ModLoad: 70c80000 70d1b000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCR80.dll
ModLoad: 6ee60000 6ee89000   C:\Program Files\TortoiseSVN\bin\libaprutil_tsvn.dll
ModLoad: 6ee50000 6ee5e000   C:\Program Files\TortoiseSVN\bin\libapriconv_tsvn.dll
ModLoad: 01280000 0128c000   C:\Program Files\TortoiseSVN\bin\intl3_svn.dll
ModLoad: 70be0000 70c67000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCP80.dll
ModLoad: 73240000 73245000   C:\Windows\system32\SHFOLDER.dll
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 753e0000 75418000   C:\Windows\system32\rsaenh.dll
ModLoad: 60300000 60324000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\softokn3.dll
ModLoad: 60460000 60499000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\freebl3.dll
ModLoad: 602b0000 602f4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssckbi.dll
Symbol search path is: SRV*c:\symbols*http://symbols.mozilla.org/firefox;SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is: 
ModLoad: 00400000 00416000   firefox.exe
ModLoad: 77700000 7781e000   ntdll.dll
eax=00000000 ebx=00000000 ecx=0012fea4 edx=00000000 esi=00000000 edi=ddd39d0d
eip=77760f34 esp=0012fef0 ebp=0012ff00 iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000246
ntdll!KiFastSystemCallRet:
77760f34 c3              ret
0:000> g
ModLoad: 77030000 77108000   C:\Windows\system32\kernel32.dll
ModLoad: 604a0000 60d30000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xul.dll
ModLoad: 60220000 60287000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\sqlite3.dll
ModLoad: 6bee0000 6bf8d000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\MOZCRT19.dll
ModLoad: 772e0000 7738a000   C:\Windows\system32\msvcrt.dll
ModLoad: 60100000 60197000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\js3250.dll
ModLoad: 600b0000 600e0000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nspr4.dll
ModLoad: 775a0000 7765f000   C:\Windows\system32\ADVAPI32.dll
ModLoad: 76de0000 76ea3000   C:\Windows\system32\RPCRT4.dll
ModLoad: 728b0000 728b7000   C:\Windows\system32\WSOCK32.dll
ModLoad: 76110000 7613d000   C:\Windows\system32\WS2_32.dll
ModLoad: 77820000 77826000   C:\Windows\system32\NSI.dll
ModLoad: 74af0000 74b23000   C:\Windows\system32\WINMM.dll
ModLoad: 77660000 776fe000   C:\Windows\system32\USER32.dll
ModLoad: 76140000 7618b000   C:\Windows\system32\GDI32.dll
ModLoad: 77110000 77254000   C:\Windows\system32\ole32.dll
ModLoad: 76280000 7630c000   C:\Windows\system32\OLEAUT32.dll
ModLoad: 74ab0000 74ae8000   C:\Windows\system32\OLEACC.dll
ModLoad: 60440000 60458000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\smime3.dll
ModLoad: 60350000 603f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nss3.dll
ModLoad: 60400000 60414000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssutil3.dll
ModLoad: 600f0000 600f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plc4.dll
ModLoad: 600e0000 600e7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plds4.dll
ModLoad: 60420000 6043e000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\ssl3.dll
ModLoad: 76310000 76dde000   C:\Windows\system32\SHELL32.dll
ModLoad: 77850000 778a5000   C:\Windows\system32\SHLWAPI.dll
ModLoad: 756c0000 756c8000   C:\Windows\system32\VERSION.dll
ModLoad: 72c70000 72cb1000   C:\Windows\system32\WINSPOOL.DRV
ModLoad: 77260000 772d4000   C:\Windows\system32\COMDLG32.dll
ModLoad: 74d60000 74ef4000   C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.6000.16386_none_5d07289e07e1d100\COMCTL32.dll
ModLoad: 76260000 7627e000   C:\Windows\system32\IMM32.dll
ModLoad: 75fc0000 76087000   C:\Windows\system32\MSCTF.dll
ModLoad: 75300000 75305000   C:\Windows\system32\MSIMG32.dll
ModLoad: 77520000 7759d000   C:\Windows\system32\USP10.dll
ModLoad: 60d30000 60d37000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xpcom.dll
(1078.df8): Break instruction exception - code 80000003 (first chance)
eax=00000000 ebx=00000000 ecx=0012fb00 edx=77760f34 esi=fffffffe edi=777c5d14
eip=77742ea8 esp=0012fb18 ebp=0012fb48 iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000246
ntdll!DbgBreakPoint:
77742ea8 cc              int     3
1:001> g
ModLoad: 77840000 77849000   C:\Windows\system32\LPK.DLL
ModLoad: 71ea0000 71f7c000   C:\Windows\system32\dbghelp.dll
ModLoad: 75060000 7509f000   C:\Windows\system32\uxtheme.dll
ModLoad: 77390000 77519000   C:\Windows\system32\SETUPAPI.dll
ModLoad: 75e70000 75e8e000   C:\Windows\system32\USERENV.dll
ModLoad: 75e50000 75e64000   C:\Windows\system32\Secur32.dll
ModLoad: 74650000 74707000   C:\Windows\system32\PROPSYS.dll
ModLoad: 778b0000 77934000   C:\Windows\system32\CLBCatQ.DLL
ModLoad: 601a0000 601b4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\components\browserdirprovider.dll
ModLoad: 75650000 7568b000   C:\Windows\system32\mswsock.dll
ModLoad: 752f0000 752f6000   C:\Windows\System32\wshtcpip.dll
ModLoad: 75880000 75899000   C:\Windows\system32\iphlpapi.dll
ModLoad: 75840000 75875000   C:\Windows\system32\dhcpcsvc.DLL
ModLoad: 75ab0000 75adb000   C:\Windows\system32\DNSAPI.dll
ModLoad: 75830000 75837000   C:\Windows\system32\WINNSI.DLL
ModLoad: 75810000 75830000   C:\Windows\system32\dhcpcsvc6.DLL
ModLoad: 74a90000 74a9f000   C:\Windows\system32\NLAapi.dll
ModLoad: 728d0000 728d8000   C:\Windows\System32\winrnr.dll
ModLoad: 76eb0000 76ef9000   C:\Windows\system32\WLDAP32.dll
ModLoad: 75fb0000 75fb7000   C:\Windows\system32\PSAPI.DLL
ModLoad: 728c0000 728cf000   C:\Windows\system32\napinsp.dll
ModLoad: 72450000 72462000   C:\Windows\system32\pnrpnsp.dll
ModLoad: 16080000 16099000   C:\Program Files\Bonjour\mdnsNSP.dll
ModLoad: 74270000 74322000   C:\Windows\system32\WindowsCodecs.dll
ModLoad: 75df0000 75e1c000   C:\Windows\system32\apphelp.dll
ModLoad: 10000000 10084000   TORTOISESVN.dll
ModLoad: 10000000 10084000   C:\Program Files\TortoiseSVN\bin\tortoisesvn.dll
ModLoad: 76190000 7625f000   C:\Windows\system32\WININET.dll
ModLoad: 77830000 77833000   C:\Windows\system32\Normaliz.dll
ModLoad: 76090000 760d5000   C:\Windows\system32\iertutil.dll
ModLoad: 6eec0000 6eee2000   C:\Program Files\TortoiseSVN\bin\libapr_tsvn.dll
ModLoad: 70c80000 70d1b000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCR80.dll
ModLoad: 6ee60000 6ee89000   C:\Program Files\TortoiseSVN\bin\libaprutil_tsvn.dll
ModLoad: 6ee50000 6ee5e000   C:\Program Files\TortoiseSVN\bin\libapriconv_tsvn.dll
ModLoad: 017e0000 017ec000   C:\Program Files\TortoiseSVN\bin\intl3_svn.dll
ModLoad: 70be0000 70c67000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCP80.dll
ModLoad: 73240000 73245000   C:\Windows\system32\SHFOLDER.dll
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 753e0000 75418000   C:\Windows\system32\rsaenh.dll
ModLoad: 60300000 60324000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\softokn3.dll
ModLoad: 60330000 60348000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssdbm3.dll
ModLoad: 60460000 60499000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\freebl3.dll
ModLoad: 602b0000 602f4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssckbi.dll
ModLoad: 601c0000 601fc000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\components\brwsrcmp.dll
ModLoad: 756b0000 756b6000   C:\Windows\System32\wship6.dll
ModLoad: 72a70000 72a76000   C:\Windows\system32\rasadhlp.dll
ModLoad: 70e70000 70f77000   C:\Windows\system32\shdocvw.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 75920000 75a11000   C:\Windows\system32\CRYPT32.dll
ModLoad: 75a70000 75a82000   C:\Windows\system32\MSASN1.dll
ModLoad: 75000000 75030000   C:\Windows\system32\mlang.dll
ModLoad: 745e0000 74610000   C:\Windows\system32\wdmaud.drv
ModLoad: 749c0000 749c4000   C:\Windows\system32\ksuser.dll
ModLoad: 74aa0000 74aa7000   C:\Windows\system32\AVRT.dll
ModLoad: 74a20000 74a47000   C:\Windows\system32\MMDevAPI.DLL
ModLoad: 75160000 7518d000   C:\Windows\system32\WINTRUST.dll
ModLoad: 760e0000 76109000   C:\Windows\system32\imagehlp.dll
ModLoad: 74440000 74461000   C:\Windows\System32\audioses.dll
ModLoad: 743d0000 74436000   C:\Windows\System32\audioeng.dll
ModLoad: 74560000 74569000   C:\Windows\system32\msacm32.drv
ModLoad: 73f50000 73f65000   C:\Windows\system32\MSACM32.dll
ModLoad: 73f40000 73f47000   C:\Windows\system32\midimap.dll
ModLoad: 75750000 75757000   C:\Windows\system32\credssp.dll
ModLoad: 75450000 75495000   C:\Windows\system32\schannel.dll
ModLoad: 75cc0000 75d2a000   C:\Windows\system32\NETAPI32.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
(1078.df8): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=00002700 ebx=00000000 ecx=00002fff edx=08b5af94 esi=08b5af7c edi=01b10ec0
eip=6012996c esp=0012ba04 ebp=0012ba28 iopl=0         nv up ei pl nz na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00010206
js3250!js_GetGCThingTraceKind+0xc:
6012996c 8b51f1          mov     edx,dword ptr [ecx-0Fh] ds:0023:00002ff0=????????
1:001> kp
ChildEBP RetAddr  
0012ba00 604b8d20 js3250!js_GetGCThingTraceKind+0xc
0012ba28 609dfe6f xul!nsXPConnect::Traverse(void * p = 0x00002700, class nsCycleCollectionTraversalCallback * cb = 0x0012ba64)+0x29 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\js\src\xpconnect\src\nsxpconnect.cpp @ 900]
0012ba54 609e03ee xul!nsCycleCollector::MarkRoots(class GCGraphBuilder * builder = 0x01b10ec0)+0x46 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\base\nscyclecollector.cpp @ 1456]
0012baac 604b8a23 xul!nsCycleCollector::BeginCollection(void)+0x63 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\base\nscyclecollector.cpp @ 2320]
0012bac0 6012ba35 xul!XPCCycleCollectGCCallback(struct JSContext * cx = 0x01b10ec0, JSGCStatus status = JSGC_MARK_END (2))+0x2f [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\js\src\xpconnect\src\nsxpconnect.cpp @ 437]
0012bb84 601037ad js3250!js_GC+0x455
0012bb9c 604b8ba9 js3250!JS_GC+0x2d
0012bc64 609e02b3 xul!nsXPConnect::Collect(void)+0x9f [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\js\src\xpconnect\src\nsxpconnect.cpp @ 527]
0012fb14 6066ef7d xul!nsCycleCollector::Collect(unsigned int aTryCollections = 1)+0x98 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\base\nscyclecollector.cpp @ 2191]
0012fb1c 6066f035 xul!nsJSContext::CC(void)+0x39 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\dom\src\base\nsjsenvironment.cpp @ 3345]
0012fb38 6059b323 xul!nsJSContext::MaybeCC(int aHigherProbability = 0)+0xa8 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\dom\src\base\nsjsenvironment.cpp @ 3397]
0012fb70 6059b1bb xul!nsXMLHttpRequest::RequestCompleted(void)+0x128 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\content\base\src\nsxmlhttprequest.cpp @ 2026]
0012fb8c 60670821 xul!nsXMLHttpRequest::OnStopRequest(class nsIRequest * request = 0x04e6858c, class nsISupports * ctxt = 0x00000000, unsigned int status = 0)+0x199 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\content\base\src\nsxmlhttprequest.cpp @ 1962]
0012fba0 605ffa68 xul!nsCrossSiteListenerProxy::OnStopRequest(class nsIRequest * aRequest = 0x04e68594, class nsISupports * aContext = 0x00000000, unsigned int aStatusCode = 0)+0x1f [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\content\base\src\nscrosssitelistenerproxy.cpp @ 261]
0012fbb4 60515dc7 xul!nsForceXMLListener::OnStopRequest(class nsIRequest * aRequest = 0x04e68594, class nsISupports * aContext = 0x00000000, unsigned int aStatusCode = 0)+0x19 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\content\base\src\nssyncloadservice.cpp @ 149]
0012fbd8 604f7c0d xul!nsHttpChannel::OnStopRequest(class nsIRequest * request = 0x00000000, class nsISupports * ctxt = 0x00000000, unsigned int status = 0)+0x1ce [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\netwerk\protocol\http\src\nshttpchannel.cpp @ 4419]
0012fbf0 604f79b0 xul!nsInputStreamPump::OnStateStop(void)+0x57 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\netwerk\base\src\nsinputstreampump.cpp @ 577]
0012fc0c 609d0638 xul!nsInputStreamPump::OnInputStreamReady(class nsIAsyncInputStream * stream = 0x052d1d48)+0x3c [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\netwerk\base\src\nsinputstreampump.cpp @ 402]
0012fc1c 609eb877 xul!nsInputStreamReadyEvent::Run(void)+0x1a [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\io\nsstreamutils.cpp @ 191]
0012fc3c 609cbbee xul!nsThread::ProcessNextEvent(int mayWait = 1, int * result = 0x0012fc50)+0xc0 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\threads\nsthread.cpp @ 511]
Here's another one. This time -- a different error -- integer divide-by-zero.
-----------------------------------------

Microsoft (R) Windows Debugger Version 6.8.0004.0 X86
Copyright (c) Microsoft Corporation. All rights reserved.

CommandLine: "C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\firefox.exe"
Symbol search path is: *** Invalid ***
****************************************************************************
* Symbol loading may be unreliable without a symbol search path.           *
* Use .symfix to have the debugger choose a symbol path.                   *
* After setting your symbol path, use .reload to refresh symbol locations. *
****************************************************************************
Executable search path is: 
ModLoad: 00400000 00416000   firefox.exe
ModLoad: 77700000 7781e000   ntdll.dll
ModLoad: 77030000 77108000   C:\Windows\system32\kernel32.dll
ModLoad: 604a0000 60d30000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xul.dll
ModLoad: 60220000 60287000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\sqlite3.dll
ModLoad: 6bb30000 6bbdd000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\MOZCRT19.dll
ModLoad: 772e0000 7738a000   C:\Windows\system32\msvcrt.dll
ModLoad: 60100000 60197000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\js3250.dll
ModLoad: 600b0000 600e0000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nspr4.dll
ModLoad: 775a0000 7765f000   C:\Windows\system32\ADVAPI32.dll
ModLoad: 76de0000 76ea3000   C:\Windows\system32\RPCRT4.dll
ModLoad: 728b0000 728b7000   C:\Windows\system32\WSOCK32.dll
ModLoad: 76110000 7613d000   C:\Windows\system32\WS2_32.dll
ModLoad: 77820000 77826000   C:\Windows\system32\NSI.dll
ModLoad: 74af0000 74b23000   C:\Windows\system32\WINMM.dll
ModLoad: 77660000 776fe000   C:\Windows\system32\USER32.dll
ModLoad: 76140000 7618b000   C:\Windows\system32\GDI32.dll
ModLoad: 77110000 77254000   C:\Windows\system32\ole32.dll
ModLoad: 76280000 7630c000   C:\Windows\system32\OLEAUT32.dll
ModLoad: 74ab0000 74ae8000   C:\Windows\system32\OLEACC.dll
ModLoad: 60440000 60458000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\smime3.dll
ModLoad: 60350000 603f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nss3.dll
ModLoad: 60400000 60414000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssutil3.dll
ModLoad: 600f0000 600f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plc4.dll
ModLoad: 600e0000 600e7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plds4.dll
ModLoad: 60420000 6043e000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\ssl3.dll
ModLoad: 76310000 76dde000   C:\Windows\system32\SHELL32.dll
ModLoad: 77850000 778a5000   C:\Windows\system32\SHLWAPI.dll
ModLoad: 756c0000 756c8000   C:\Windows\system32\VERSION.dll
ModLoad: 72c70000 72cb1000   C:\Windows\system32\WINSPOOL.DRV
ModLoad: 77260000 772d4000   C:\Windows\system32\COMDLG32.dll
ModLoad: 74d60000 74ef4000   C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.6000.16386_none_5d07289e07e1d100\COMCTL32.dll
ModLoad: 76260000 7627e000   C:\Windows\system32\IMM32.dll
ModLoad: 75fc0000 76087000   C:\Windows\system32\MSCTF.dll
ModLoad: 75300000 75305000   C:\Windows\system32\MSIMG32.dll
ModLoad: 77520000 7759d000   C:\Windows\system32\USP10.dll
ModLoad: 60d30000 60d37000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xpcom.dll
(15fc.1234): Break instruction exception - code 80000003 (first chance)
eax=00000000 ebx=00000000 ecx=0012fb00 edx=77760f34 esi=fffffffe edi=777c5d14
eip=77742ea8 esp=0012fb18 ebp=0012fb48 iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000246
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for ntdll.dll - 
ntdll!DbgBreakPoint:
77742ea8 cc              int     3
0:000> .sympath SRV*c:\symbols*http://symbols.mozilla.org/firefox
Symbol search path is: SRV*c:\symbols*http://symbols.mozilla.org/firefox
0:000> .symfix+ c:\symbols
0:000> .reload /f
Reloading current modules
.*** WARNING: Unable to verify checksum for firefox.exe
....................................
0:000> g
ModLoad: 77840000 77849000   C:\Windows\system32\LPK.DLL
ModLoad: 71ea0000 71f7c000   C:\Windows\system32\dbghelp.dll
ModLoad: 75060000 7509f000   C:\Windows\system32\uxtheme.dll
ModLoad: 77390000 77519000   C:\Windows\system32\SETUPAPI.dll
ModLoad: 75e70000 75e8e000   C:\Windows\system32\USERENV.dll
ModLoad: 75e50000 75e64000   C:\Windows\system32\Secur32.dll
ModLoad: 74650000 74707000   C:\Windows\system32\PROPSYS.dll
ModLoad: 778b0000 77934000   C:\Windows\system32\CLBCatQ.DLL
ModLoad: 601a0000 601b4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\components\browserdirprovider.dll
ModLoad: 75650000 7568b000   C:\Windows\system32\mswsock.dll
ModLoad: 752f0000 752f6000   C:\Windows\System32\wshtcpip.dll
ModLoad: 75880000 75899000   C:\Windows\system32\iphlpapi.dll
ModLoad: 75840000 75875000   C:\Windows\system32\dhcpcsvc.DLL
ModLoad: 75ab0000 75adb000   C:\Windows\system32\DNSAPI.dll
ModLoad: 75830000 75837000   C:\Windows\system32\WINNSI.DLL
ModLoad: 75810000 75830000   C:\Windows\system32\dhcpcsvc6.DLL
ModLoad: 74270000 74322000   C:\Windows\system32\WindowsCodecs.dll
ModLoad: 75df0000 75e1c000   C:\Windows\system32\apphelp.dll
ModLoad: 10000000 10084000   TORTOISESVN.dll
ModLoad: 10000000 10084000   C:\Program Files\TortoiseSVN\bin\tortoisesvn.dll
ModLoad: 76190000 7625f000   C:\Windows\system32\WININET.dll
ModLoad: 77830000 77833000   C:\Windows\system32\Normaliz.dll
ModLoad: 76090000 760d5000   C:\Windows\system32\iertutil.dll
ModLoad: 6eec0000 6eee2000   C:\Program Files\TortoiseSVN\bin\libapr_tsvn.dll
ModLoad: 70c80000 70d1b000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCR80.dll
ModLoad: 6ee60000 6ee89000   C:\Program Files\TortoiseSVN\bin\libaprutil_tsvn.dll
ModLoad: 6ee50000 6ee5e000   C:\Program Files\TortoiseSVN\bin\libapriconv_tsvn.dll
ModLoad: 01280000 0128c000   C:\Program Files\TortoiseSVN\bin\intl3_svn.dll
ModLoad: 70be0000 70c67000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCP80.dll
ModLoad: 73240000 73245000   C:\Windows\system32\SHFOLDER.dll
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 753e0000 75418000   C:\Windows\system32\rsaenh.dll
ModLoad: 60300000 60324000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\softokn3.dll
ModLoad: 60460000 60499000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\freebl3.dll
ModLoad: 602b0000 602f4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssckbi.dll
Symbol search path is: SRV*c:\symbols*http://symbols.mozilla.org/firefox;SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is: 
ModLoad: 00400000 00416000   firefox.exe
ModLoad: 77700000 7781e000   ntdll.dll
eax=00000000 ebx=00000000 ecx=0012fea4 edx=00000000 esi=00000000 edi=ddd39d0d
eip=77760f34 esp=0012fef0 ebp=0012ff00 iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000246
ntdll!KiFastSystemCallRet:
77760f34 c3              ret
0:000> g
ModLoad: 77030000 77108000   C:\Windows\system32\kernel32.dll
ModLoad: 604a0000 60d30000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xul.dll
ModLoad: 60220000 60287000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\sqlite3.dll
ModLoad: 6bee0000 6bf8d000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\MOZCRT19.dll
ModLoad: 772e0000 7738a000   C:\Windows\system32\msvcrt.dll
ModLoad: 60100000 60197000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\js3250.dll
ModLoad: 600b0000 600e0000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nspr4.dll
ModLoad: 775a0000 7765f000   C:\Windows\system32\ADVAPI32.dll
ModLoad: 76de0000 76ea3000   C:\Windows\system32\RPCRT4.dll
ModLoad: 728b0000 728b7000   C:\Windows\system32\WSOCK32.dll
ModLoad: 76110000 7613d000   C:\Windows\system32\WS2_32.dll
ModLoad: 77820000 77826000   C:\Windows\system32\NSI.dll
ModLoad: 74af0000 74b23000   C:\Windows\system32\WINMM.dll
ModLoad: 77660000 776fe000   C:\Windows\system32\USER32.dll
ModLoad: 76140000 7618b000   C:\Windows\system32\GDI32.dll
ModLoad: 77110000 77254000   C:\Windows\system32\ole32.dll
ModLoad: 76280000 7630c000   C:\Windows\system32\OLEAUT32.dll
ModLoad: 74ab0000 74ae8000   C:\Windows\system32\OLEACC.dll
ModLoad: 60440000 60458000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\smime3.dll
ModLoad: 60350000 603f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nss3.dll
ModLoad: 60400000 60414000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssutil3.dll
ModLoad: 600f0000 600f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plc4.dll
ModLoad: 600e0000 600e7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plds4.dll
ModLoad: 60420000 6043e000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\ssl3.dll
ModLoad: 76310000 76dde000   C:\Windows\system32\SHELL32.dll
ModLoad: 77850000 778a5000   C:\Windows\system32\SHLWAPI.dll
ModLoad: 756c0000 756c8000   C:\Windows\system32\VERSION.dll
ModLoad: 72c70000 72cb1000   C:\Windows\system32\WINSPOOL.DRV
ModLoad: 77260000 772d4000   C:\Windows\system32\COMDLG32.dll
ModLoad: 74d60000 74ef4000   C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.6000.16386_none_5d07289e07e1d100\COMCTL32.dll
ModLoad: 76260000 7627e000   C:\Windows\system32\IMM32.dll
ModLoad: 75fc0000 76087000   C:\Windows\system32\MSCTF.dll
ModLoad: 75300000 75305000   C:\Windows\system32\MSIMG32.dll
ModLoad: 77520000 7759d000   C:\Windows\system32\USP10.dll
ModLoad: 60d30000 60d37000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xpcom.dll
(1078.df8): Break instruction exception - code 80000003 (first chance)
eax=00000000 ebx=00000000 ecx=0012fb00 edx=77760f34 esi=fffffffe edi=777c5d14
eip=77742ea8 esp=0012fb18 ebp=0012fb48 iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000246
ntdll!DbgBreakPoint:
77742ea8 cc              int     3
1:001> g
ModLoad: 77840000 77849000   C:\Windows\system32\LPK.DLL
ModLoad: 71ea0000 71f7c000   C:\Windows\system32\dbghelp.dll
ModLoad: 75060000 7509f000   C:\Windows\system32\uxtheme.dll
ModLoad: 77390000 77519000   C:\Windows\system32\SETUPAPI.dll
ModLoad: 75e70000 75e8e000   C:\Windows\system32\USERENV.dll
ModLoad: 75e50000 75e64000   C:\Windows\system32\Secur32.dll
ModLoad: 74650000 74707000   C:\Windows\system32\PROPSYS.dll
ModLoad: 778b0000 77934000   C:\Windows\system32\CLBCatQ.DLL
ModLoad: 601a0000 601b4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\components\browserdirprovider.dll
ModLoad: 75650000 7568b000   C:\Windows\system32\mswsock.dll
ModLoad: 752f0000 752f6000   C:\Windows\System32\wshtcpip.dll
ModLoad: 75880000 75899000   C:\Windows\system32\iphlpapi.dll
ModLoad: 75840000 75875000   C:\Windows\system32\dhcpcsvc.DLL
ModLoad: 75ab0000 75adb000   C:\Windows\system32\DNSAPI.dll
ModLoad: 75830000 75837000   C:\Windows\system32\WINNSI.DLL
ModLoad: 75810000 75830000   C:\Windows\system32\dhcpcsvc6.DLL
ModLoad: 74a90000 74a9f000   C:\Windows\system32\NLAapi.dll
ModLoad: 728d0000 728d8000   C:\Windows\System32\winrnr.dll
ModLoad: 76eb0000 76ef9000   C:\Windows\system32\WLDAP32.dll
ModLoad: 75fb0000 75fb7000   C:\Windows\system32\PSAPI.DLL
ModLoad: 728c0000 728cf000   C:\Windows\system32\napinsp.dll
ModLoad: 72450000 72462000   C:\Windows\system32\pnrpnsp.dll
ModLoad: 16080000 16099000   C:\Program Files\Bonjour\mdnsNSP.dll
ModLoad: 74270000 74322000   C:\Windows\system32\WindowsCodecs.dll
ModLoad: 75df0000 75e1c000   C:\Windows\system32\apphelp.dll
ModLoad: 10000000 10084000   TORTOISESVN.dll
ModLoad: 10000000 10084000   C:\Program Files\TortoiseSVN\bin\tortoisesvn.dll
ModLoad: 76190000 7625f000   C:\Windows\system32\WININET.dll
ModLoad: 77830000 77833000   C:\Windows\system32\Normaliz.dll
ModLoad: 76090000 760d5000   C:\Windows\system32\iertutil.dll
ModLoad: 6eec0000 6eee2000   C:\Program Files\TortoiseSVN\bin\libapr_tsvn.dll
ModLoad: 70c80000 70d1b000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCR80.dll
ModLoad: 6ee60000 6ee89000   C:\Program Files\TortoiseSVN\bin\libaprutil_tsvn.dll
ModLoad: 6ee50000 6ee5e000   C:\Program Files\TortoiseSVN\bin\libapriconv_tsvn.dll
ModLoad: 017e0000 017ec000   C:\Program Files\TortoiseSVN\bin\intl3_svn.dll
ModLoad: 70be0000 70c67000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCP80.dll
ModLoad: 73240000 73245000   C:\Windows\system32\SHFOLDER.dll
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 753e0000 75418000   C:\Windows\system32\rsaenh.dll
ModLoad: 60300000 60324000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\softokn3.dll
ModLoad: 60330000 60348000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssdbm3.dll
ModLoad: 60460000 60499000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\freebl3.dll
ModLoad: 602b0000 602f4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssckbi.dll
ModLoad: 601c0000 601fc000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\components\brwsrcmp.dll
ModLoad: 756b0000 756b6000   C:\Windows\System32\wship6.dll
ModLoad: 72a70000 72a76000   C:\Windows\system32\rasadhlp.dll
ModLoad: 70e70000 70f77000   C:\Windows\system32\shdocvw.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 75920000 75a11000   C:\Windows\system32\CRYPT32.dll
ModLoad: 75a70000 75a82000   C:\Windows\system32\MSASN1.dll
ModLoad: 75000000 75030000   C:\Windows\system32\mlang.dll
ModLoad: 745e0000 74610000   C:\Windows\system32\wdmaud.drv
ModLoad: 749c0000 749c4000   C:\Windows\system32\ksuser.dll
ModLoad: 74aa0000 74aa7000   C:\Windows\system32\AVRT.dll
ModLoad: 74a20000 74a47000   C:\Windows\system32\MMDevAPI.DLL
ModLoad: 75160000 7518d000   C:\Windows\system32\WINTRUST.dll
ModLoad: 760e0000 76109000   C:\Windows\system32\imagehlp.dll
ModLoad: 74440000 74461000   C:\Windows\System32\audioses.dll
ModLoad: 743d0000 74436000   C:\Windows\System32\audioeng.dll
ModLoad: 74560000 74569000   C:\Windows\system32\msacm32.drv
ModLoad: 73f50000 73f65000   C:\Windows\system32\MSACM32.dll
ModLoad: 73f40000 73f47000   C:\Windows\system32\midimap.dll
ModLoad: 75750000 75757000   C:\Windows\system32\credssp.dll
ModLoad: 75450000 75495000   C:\Windows\system32\schannel.dll
ModLoad: 75cc0000 75d2a000   C:\Windows\system32\NETAPI32.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
(1078.df8): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=00002700 ebx=00000000 ecx=00002fff edx=08b5af94 esi=08b5af7c edi=01b10ec0
eip=6012996c esp=0012ba04 ebp=0012ba28 iopl=0         nv up ei pl nz na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00010206
js3250!js_GetGCThingTraceKind+0xc:
6012996c 8b51f1          mov     edx,dword ptr [ecx-0Fh] ds:0023:00002ff0=????????
1:001> kp
ChildEBP RetAddr  
0012ba00 604b8d20 js3250!js_GetGCThingTraceKind+0xc
0012ba28 609dfe6f xul!nsXPConnect::Traverse(void * p = 0x00002700, class nsCycleCollectionTraversalCallback * cb = 0x0012ba64)+0x29 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\js\src\xpconnect\src\nsxpconnect.cpp @ 900]
0012ba54 609e03ee xul!nsCycleCollector::MarkRoots(class GCGraphBuilder * builder = 0x01b10ec0)+0x46 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\base\nscyclecollector.cpp @ 1456]
0012baac 604b8a23 xul!nsCycleCollector::BeginCollection(void)+0x63 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\base\nscyclecollector.cpp @ 2320]
0012bac0 6012ba35 xul!XPCCycleCollectGCCallback(struct JSContext * cx = 0x01b10ec0, JSGCStatus status = JSGC_MARK_END (2))+0x2f [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\js\src\xpconnect\src\nsxpconnect.cpp @ 437]
0012bb84 601037ad js3250!js_GC+0x455
0012bb9c 604b8ba9 js3250!JS_GC+0x2d
0012bc64 609e02b3 xul!nsXPConnect::Collect(void)+0x9f [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\js\src\xpconnect\src\nsxpconnect.cpp @ 527]
0012fb14 6066ef7d xul!nsCycleCollector::Collect(unsigned int aTryCollections = 1)+0x98 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\base\nscyclecollector.cpp @ 2191]
0012fb1c 6066f035 xul!nsJSContext::CC(void)+0x39 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\dom\src\base\nsjsenvironment.cpp @ 3345]
0012fb38 6059b323 xul!nsJSContext::MaybeCC(int aHigherProbability = 0)+0xa8 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\dom\src\base\nsjsenvironment.cpp @ 3397]
0012fb70 6059b1bb xul!nsXMLHttpRequest::RequestCompleted(void)+0x128 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\content\base\src\nsxmlhttprequest.cpp @ 2026]
0012fb8c 60670821 xul!nsXMLHttpRequest::OnStopRequest(class nsIRequest * request = 0x04e6858c, class nsISupports * ctxt = 0x00000000, unsigned int status = 0)+0x199 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\content\base\src\nsxmlhttprequest.cpp @ 1962]
0012fba0 605ffa68 xul!nsCrossSiteListenerProxy::OnStopRequest(class nsIRequest * aRequest = 0x04e68594, class nsISupports * aContext = 0x00000000, unsigned int aStatusCode = 0)+0x1f [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\content\base\src\nscrosssitelistenerproxy.cpp @ 261]
0012fbb4 60515dc7 xul!nsForceXMLListener::OnStopRequest(class nsIRequest * aRequest = 0x04e68594, class nsISupports * aContext = 0x00000000, unsigned int aStatusCode = 0)+0x19 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\content\base\src\nssyncloadservice.cpp @ 149]
0012fbd8 604f7c0d xul!nsHttpChannel::OnStopRequest(class nsIRequest * request = 0x00000000, class nsISupports * ctxt = 0x00000000, unsigned int status = 0)+0x1ce [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\netwerk\protocol\http\src\nshttpchannel.cpp @ 4419]
0012fbf0 604f79b0 xul!nsInputStreamPump::OnStateStop(void)+0x57 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\netwerk\base\src\nsinputstreampump.cpp @ 577]
0012fc0c 609d0638 xul!nsInputStreamPump::OnInputStreamReady(class nsIAsyncInputStream * stream = 0x052d1d48)+0x3c [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\netwerk\base\src\nsinputstreampump.cpp @ 402]
0012fc1c 609eb877 xul!nsInputStreamReadyEvent::Run(void)+0x1a [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\io\nsstreamutils.cpp @ 191]
0012fc3c 609cbbee xul!nsThread::ProcessNextEvent(int mayWait = 1, int * result = 0x0012fc50)+0xc0 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\threads\nsthread.cpp @ 511]
1:001> .restart /f
CommandLine: "C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\firefox.exe"
Symbol search path is: SRV*c:\symbols*http://symbols.mozilla.org/firefox;SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is: 
ModLoad: 00400000 00416000   firefox.exe
ModLoad: 77700000 7781e000   ntdll.dll
ModLoad: 77030000 77108000   C:\Windows\system32\kernel32.dll
ModLoad: 604a0000 60d30000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xul.dll
ModLoad: 60220000 60287000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\sqlite3.dll
ModLoad: 6df60000 6e00d000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\MOZCRT19.dll
ModLoad: 772e0000 7738a000   C:\Windows\system32\msvcrt.dll
ModLoad: 60100000 60197000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\js3250.dll
ModLoad: 600b0000 600e0000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nspr4.dll
ModLoad: 775a0000 7765f000   C:\Windows\system32\ADVAPI32.dll
ModLoad: 76de0000 76ea3000   C:\Windows\system32\RPCRT4.dll
ModLoad: 728b0000 728b7000   C:\Windows\system32\WSOCK32.dll
ModLoad: 76110000 7613d000   C:\Windows\system32\WS2_32.dll
ModLoad: 77820000 77826000   C:\Windows\system32\NSI.dll
ModLoad: 74af0000 74b23000   C:\Windows\system32\WINMM.dll
ModLoad: 77660000 776fe000   C:\Windows\system32\USER32.dll
ModLoad: 76140000 7618b000   C:\Windows\system32\GDI32.dll
ModLoad: 77110000 77254000   C:\Windows\system32\ole32.dll
ModLoad: 76280000 7630c000   C:\Windows\system32\OLEAUT32.dll
ModLoad: 74ab0000 74ae8000   C:\Windows\system32\OLEACC.dll
ModLoad: 60440000 60458000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\smime3.dll
ModLoad: 60350000 603f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nss3.dll
ModLoad: 60400000 60414000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssutil3.dll
ModLoad: 600f0000 600f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plc4.dll
ModLoad: 600e0000 600e7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plds4.dll
ModLoad: 60420000 6043e000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\ssl3.dll
ModLoad: 76310000 76dde000   C:\Windows\system32\SHELL32.dll
ModLoad: 77850000 778a5000   C:\Windows\system32\SHLWAPI.dll
ModLoad: 756c0000 756c8000   C:\Windows\system32\VERSION.dll
ModLoad: 72c70000 72cb1000   C:\Windows\system32\WINSPOOL.DRV
ModLoad: 77260000 772d4000   C:\Windows\system32\COMDLG32.dll
ModLoad: 74d60000 74ef4000   C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.6000.16386_none_5d07289e07e1d100\COMCTL32.dll
ModLoad: 76260000 7627e000   C:\Windows\system32\IMM32.dll
ModLoad: 75fc0000 76087000   C:\Windows\system32\MSCTF.dll
ModLoad: 75300000 75305000   C:\Windows\system32\MSIMG32.dll
ModLoad: 77520000 7759d000   C:\Windows\system32\USP10.dll
ModLoad: 60d30000 60d37000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xpcom.dll
(116c.10e8): Break instruction exception - code 80000003 (first chance)
eax=00000000 ebx=00000000 ecx=0012fb00 edx=77760f34 esi=fffffffe edi=777c5d14
eip=77742ea8 esp=0012fb18 ebp=0012fb48 iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000246
ntdll!DbgBreakPoint:
77742ea8 cc              int     3
0:000> g
ModLoad: 77840000 77849000   C:\Windows\system32\LPK.DLL
ModLoad: 71ea0000 71f7c000   C:\Windows\system32\dbghelp.dll
ModLoad: 75060000 7509f000   C:\Windows\system32\uxtheme.dll
ModLoad: 77390000 77519000   C:\Windows\system32\SETUPAPI.dll
ModLoad: 75e70000 75e8e000   C:\Windows\system32\USERENV.dll
ModLoad: 75e50000 75e64000   C:\Windows\system32\Secur32.dll
ModLoad: 74650000 74707000   C:\Windows\system32\PROPSYS.dll
ModLoad: 778b0000 77934000   C:\Windows\system32\CLBCatQ.DLL
ModLoad: 601a0000 601b4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\components\browserdirprovider.dll
ModLoad: 75650000 7568b000   C:\Windows\system32\mswsock.dll
ModLoad: 752f0000 752f6000   C:\Windows\System32\wshtcpip.dll
ModLoad: 75880000 75899000   C:\Windows\system32\iphlpapi.dll
ModLoad: 75840000 75875000   C:\Windows\system32\dhcpcsvc.DLL
ModLoad: 75ab0000 75adb000   C:\Windows\system32\DNSAPI.dll
ModLoad: 75830000 75837000   C:\Windows\system32\WINNSI.DLL
ModLoad: 75810000 75830000   C:\Windows\system32\dhcpcsvc6.DLL
ModLoad: 74270000 74322000   C:\Windows\system32\WindowsCodecs.dll
ModLoad: 75df0000 75e1c000   C:\Windows\system32\apphelp.dll
ModLoad: 10000000 10084000   TORTOISESVN.dll
ModLoad: 10000000 10084000   C:\Program Files\TortoiseSVN\bin\tortoisesvn.dll
ModLoad: 76190000 7625f000   C:\Windows\system32\WININET.dll
ModLoad: 77830000 77833000   C:\Windows\system32\Normaliz.dll
ModLoad: 76090000 760d5000   C:\Windows\system32\iertutil.dll
ModLoad: 6eec0000 6eee2000   C:\Program Files\TortoiseSVN\bin\libapr_tsvn.dll
ModLoad: 70c80000 70d1b000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCR80.dll
ModLoad: 6ee60000 6ee89000   C:\Program Files\TortoiseSVN\bin\libaprutil_tsvn.dll
ModLoad: 6ee50000 6ee5e000   C:\Program Files\TortoiseSVN\bin\libapriconv_tsvn.dll
ModLoad: 01380000 0138c000   C:\Program Files\TortoiseSVN\bin\intl3_svn.dll
ModLoad: 70be0000 70c67000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCP80.dll
ModLoad: 73240000 73245000   C:\Windows\system32\SHFOLDER.dll
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 753e0000 75418000   C:\Windows\system32\rsaenh.dll
ModLoad: 60300000 60324000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\softokn3.dll
ModLoad: 60460000 60499000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\freebl3.dll
ModLoad: 602b0000 602f4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssckbi.dll
Symbol search path is: SRV*c:\symbols*http://symbols.mozilla.org/firefox;SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is: 
ModLoad: 00400000 00416000   firefox.exe
ModLoad: 77700000 7781e000   ntdll.dll
ModLoad: 77030000 77108000   C:\Windows\system32\kernel32.dll
ModLoad: 604a0000 60d30000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xul.dll
ModLoad: 60220000 60287000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\sqlite3.dll
ModLoad: 6df60000 6e00d000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\MOZCRT19.dll
ModLoad: 772e0000 7738a000   C:\Windows\system32\msvcrt.dll
eax=00000000 ebx=00000000 ecx=0012fea4 edx=00000000 esi=00000000 edi=1795f59a
eip=77760f34 esp=0012fef0 ebp=0012ff00 iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000246
ntdll!KiFastSystemCallRet:
77760f34 c3              ret
0:000> g
ModLoad: 60100000 60197000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\js3250.dll
ModLoad: 600b0000 600e0000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nspr4.dll
ModLoad: 775a0000 7765f000   C:\Windows\system32\ADVAPI32.dll
ModLoad: 76de0000 76ea3000   C:\Windows\system32\RPCRT4.dll
ModLoad: 728b0000 728b7000   C:\Windows\system32\WSOCK32.dll
ModLoad: 76110000 7613d000   C:\Windows\system32\WS2_32.dll
ModLoad: 77820000 77826000   C:\Windows\system32\NSI.dll
ModLoad: 74af0000 74b23000   C:\Windows\system32\WINMM.dll
ModLoad: 77660000 776fe000   C:\Windows\system32\USER32.dll
ModLoad: 76140000 7618b000   C:\Windows\system32\GDI32.dll
ModLoad: 77110000 77254000   C:\Windows\system32\ole32.dll
ModLoad: 76280000 7630c000   C:\Windows\system32\OLEAUT32.dll
ModLoad: 74ab0000 74ae8000   C:\Windows\system32\OLEACC.dll
ModLoad: 60440000 60458000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\smime3.dll
ModLoad: 60350000 603f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nss3.dll
ModLoad: 60400000 60414000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssutil3.dll
ModLoad: 600f0000 600f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plc4.dll
ModLoad: 600e0000 600e7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plds4.dll
ModLoad: 60420000 6043e000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\ssl3.dll
ModLoad: 76310000 76dde000   C:\Windows\system32\SHELL32.dll
ModLoad: 77850000 778a5000   C:\Windows\system32\SHLWAPI.dll
ModLoad: 756c0000 756c8000   C:\Windows\system32\VERSION.dll
ModLoad: 72c70000 72cb1000   C:\Windows\system32\WINSPOOL.DRV
ModLoad: 77260000 772d4000   C:\Windows\system32\COMDLG32.dll
ModLoad: 74d60000 74ef4000   C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.6000.16386_none_5d07289e07e1d100\COMCTL32.dll
ModLoad: 76260000 7627e000   C:\Windows\system32\IMM32.dll
ModLoad: 75fc0000 76087000   C:\Windows\system32\MSCTF.dll
ModLoad: 75300000 75305000   C:\Windows\system32\MSIMG32.dll
ModLoad: 77520000 7759d000   C:\Windows\system32\USP10.dll
ModLoad: 60d30000 60d37000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xpcom.dll
(1470.14a8): Break instruction exception - code 80000003 (first chance)
eax=00000000 ebx=00000000 ecx=0012fb00 edx=77760f34 esi=fffffffe edi=777c5d14
eip=77742ea8 esp=0012fb18 ebp=0012fb48 iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000246
ntdll!DbgBreakPoint:
77742ea8 cc              int     3
1:001> g
ModLoad: 77840000 77849000   C:\Windows\system32\LPK.DLL
ModLoad: 71ea0000 71f7c000   C:\Windows\system32\dbghelp.dll
ModLoad: 75060000 7509f000   C:\Windows\system32\uxtheme.dll
ModLoad: 77390000 77519000   C:\Windows\system32\SETUPAPI.dll
ModLoad: 75e70000 75e8e000   C:\Windows\system32\USERENV.dll
ModLoad: 75e50000 75e64000   C:\Windows\system32\Secur32.dll
ModLoad: 74650000 74707000   C:\Windows\system32\PROPSYS.dll
ModLoad: 778b0000 77934000   C:\Windows\system32\CLBCatQ.DLL
ModLoad: 601a0000 601b4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\components\browserdirprovider.dll
ModLoad: 75650000 7568b000   C:\Windows\system32\mswsock.dll
ModLoad: 752f0000 752f6000   C:\Windows\System32\wshtcpip.dll
ModLoad: 75880000 75899000   C:\Windows\system32\iphlpapi.dll
ModLoad: 75840000 75875000   C:\Windows\system32\dhcpcsvc.DLL
ModLoad: 75ab0000 75adb000   C:\Windows\system32\DNSAPI.dll
ModLoad: 75830000 75837000   C:\Windows\system32\WINNSI.DLL
ModLoad: 75810000 75830000   C:\Windows\system32\dhcpcsvc6.DLL
ModLoad: 74a90000 74a9f000   C:\Windows\system32\NLAapi.dll
ModLoad: 728d0000 728d8000   C:\Windows\System32\winrnr.dll
ModLoad: 76eb0000 76ef9000   C:\Windows\system32\WLDAP32.dll
ModLoad: 75fb0000 75fb7000   C:\Windows\system32\PSAPI.DLL
ModLoad: 728c0000 728cf000   C:\Windows\system32\napinsp.dll
ModLoad: 72450000 72462000   C:\Windows\system32\pnrpnsp.dll
ModLoad: 16080000 16099000   C:\Program Files\Bonjour\mdnsNSP.dll
ModLoad: 74270000 74322000   C:\Windows\system32\WindowsCodecs.dll
ModLoad: 75df0000 75e1c000   C:\Windows\system32\apphelp.dll
ModLoad: 10000000 10084000   TORTOISESVN.dll
ModLoad: 10000000 10084000   C:\Program Files\TortoiseSVN\bin\tortoisesvn.dll
ModLoad: 76190000 7625f000   C:\Windows\system32\WININET.dll
ModLoad: 77830000 77833000   C:\Windows\system32\Normaliz.dll
ModLoad: 76090000 760d5000   C:\Windows\system32\iertutil.dll
ModLoad: 6eec0000 6eee2000   C:\Program Files\TortoiseSVN\bin\libapr_tsvn.dll
ModLoad: 70c80000 70d1b000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCR80.dll
ModLoad: 6ee60000 6ee89000   C:\Program Files\TortoiseSVN\bin\libaprutil_tsvn.dll
ModLoad: 6ee50000 6ee5e000   C:\Program Files\TortoiseSVN\bin\libapriconv_tsvn.dll
ModLoad: 014e0000 014ec000   C:\Program Files\TortoiseSVN\bin\intl3_svn.dll
ModLoad: 70be0000 70c67000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCP80.dll
ModLoad: 73240000 73245000   C:\Windows\system32\SHFOLDER.dll
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 753e0000 75418000   C:\Windows\system32\rsaenh.dll
ModLoad: 60300000 60324000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\softokn3.dll
ModLoad: 60330000 60348000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssdbm3.dll
ModLoad: 60460000 60499000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\freebl3.dll
ModLoad: 602b0000 602f4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssckbi.dll
ModLoad: 601c0000 601fc000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\components\brwsrcmp.dll
ModLoad: 756b0000 756b6000   C:\Windows\System32\wship6.dll
ModLoad: 72a70000 72a76000   C:\Windows\system32\rasadhlp.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 75920000 75a11000   C:\Windows\system32\CRYPT32.dll
ModLoad: 75a70000 75a82000   C:\Windows\system32\MSASN1.dll
ModLoad: 75000000 75030000   C:\Windows\system32\mlang.dll
ModLoad: 745e0000 74610000   C:\Windows\system32\wdmaud.drv
ModLoad: 749c0000 749c4000   C:\Windows\system32\ksuser.dll
ModLoad: 74aa0000 74aa7000   C:\Windows\system32\AVRT.dll
ModLoad: 74a20000 74a47000   C:\Windows\system32\MMDevAPI.DLL
ModLoad: 75160000 7518d000   C:\Windows\system32\WINTRUST.dll
ModLoad: 760e0000 76109000   C:\Windows\system32\imagehlp.dll
ModLoad: 74440000 74461000   C:\Windows\System32\audioses.dll
ModLoad: 743d0000 74436000   C:\Windows\System32\audioeng.dll
ModLoad: 74560000 74569000   C:\Windows\system32\msacm32.drv
ModLoad: 73f50000 73f65000   C:\Windows\system32\MSACM32.dll
ModLoad: 73f40000 73f47000   C:\Windows\system32\midimap.dll
ModLoad: 75750000 75757000   C:\Windows\system32\credssp.dll
ModLoad: 75450000 75495000   C:\Windows\system32\schannel.dll
ModLoad: 75cc0000 75d2a000   C:\Windows\system32\NETAPI32.dll
ModLoad: 70e70000 70f77000   C:\Windows\system32\shdocvw.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
(1470.14a8): Integer divide-by-zero - code c0000094 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=00000f98 ebx=00000000 ecx=06ca7ff0 edx=00000000 esi=00000000 edi=01b10ec0
eip=60129988 esp=0012baa8 ebp=0012bad0 iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00010246
js3250!js_GetGCThingTraceKind+0x28:
60129988 f7f6            div     eax,esi
1:001> kp
ChildEBP RetAddr  
0012baa8 604b8d20 js3250!js_GetGCThingTraceKind+0x28
0012bad0 609dfe6f xul!nsXPConnect::Traverse(void * p = 0x06ca7f98, class nsCycleCollectionTraversalCallback * cb = 0x0012bb0c)+0x29 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\js\src\xpconnect\src\nsxpconnect.cpp @ 900]
0012bafc 609e03ee xul!nsCycleCollector::MarkRoots(class GCGraphBuilder * builder = 0x01b10ec0)+0x46 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\base\nscyclecollector.cpp @ 1456]
0012bb54 604b8a23 xul!nsCycleCollector::BeginCollection(void)+0x63 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\base\nscyclecollector.cpp @ 2320]
0012bb68 6012ba35 xul!XPCCycleCollectGCCallback(struct JSContext * cx = 0x01b10ec0, JSGCStatus status = JSGC_MARK_END (2))+0x2f [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\js\src\xpconnect\src\nsxpconnect.cpp @ 437]
0012bc2c 601037ad js3250!js_GC+0x455
0012bc44 604b8ba9 js3250!JS_GC+0x2d
0012bd0c 609e02b3 xul!nsXPConnect::Collect(void)+0x9f [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\js\src\xpconnect\src\nsxpconnect.cpp @ 527]
0012fbbc 6066ef7d xul!nsCycleCollector::Collect(unsigned int aTryCollections = 1)+0x98 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\base\nscyclecollector.cpp @ 2191]
0012fbc4 6066f035 xul!nsJSContext::CC(void)+0x39 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\dom\src\base\nsjsenvironment.cpp @ 3345]
0012fbe0 6066f051 xul!nsJSContext::MaybeCC(int aHigherProbability = 1)+0xa8 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\dom\src\base\nsjsenvironment.cpp @ 3397]
0012fbe8 6066f09b xul!nsJSContext::CCIfUserInactive(void)+0x10 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\dom\src\base\nsjsenvironment.cpp @ 3413]
0012fbf0 609f2987 xul!nsJSContext::Notify(class nsITimer * timer = 0x032352e0)+0x43 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\dom\src\base\nsjsenvironment.cpp @ 3442]
0012fc10 609f2a10 xul!nsTimerImpl::Fire(void)+0xb0 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\threads\nstimerimpl.cpp @ 416]
0012fc1c 609eb877 xul!nsTimerEvent::Run(void)+0x1a [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\threads\nstimerimpl.cpp @ 490]
0012fc3c 609cbbee xul!nsThread::ProcessNextEvent(int mayWait = 1, int * result = 0x0012fc50)+0xc0 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\threads\nsthread.cpp @ 511]
0012fc54 609633d1 xul!NS_ProcessNextEvent_P(class nsIThread * thread = 0x00000f98, int mayWait = 1244920)+0x1d [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\obj-fx-trunk\xpcom\build\nsthreadutils.cpp @ 227]
0012fc60 608a2691 xul!nsBaseAppShell::Run(void)+0x25 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\widget\src\xpwidgets\nsbaseappshell.cpp @ 150]
0012fc6c 604a8457 xul!nsAppStartup::Run(void)+0x1e [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\toolkit\components\startup\src\nsappstartup.cpp @ 182]
*** WARNING: Unable to verify checksum for firefox.exe
0012fef8 00401466 xul!XRE_main(int argc = 1, char ** argv = 0x003130a0, struct nsXREAppData * aAppData = 0x00319440)+0x1792 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\toolkit\xre\nsapprunner.cpp @ 3151]
This seems different from the previous two -- JS_CallTracer.

Do you have enough to fix the bug(s)?
----------------------
0:000> g
ModLoad: 77840000 77849000   C:\Windows\system32\LPK.DLL
ModLoad: 71ea0000 71f7c000   C:\Windows\system32\dbghelp.dll
ModLoad: 75060000 7509f000   C:\Windows\system32\uxtheme.dll
ModLoad: 77390000 77519000   C:\Windows\system32\SETUPAPI.dll
ModLoad: 75e70000 75e8e000   C:\Windows\system32\USERENV.dll
ModLoad: 75e50000 75e64000   C:\Windows\system32\Secur32.dll
ModLoad: 74650000 74707000   C:\Windows\system32\PROPSYS.dll
ModLoad: 778b0000 77934000   C:\Windows\system32\CLBCatQ.DLL
ModLoad: 601a0000 601b4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\components\browserdirprovider.dll
ModLoad: 75650000 7568b000   C:\Windows\system32\mswsock.dll
ModLoad: 752f0000 752f6000   C:\Windows\System32\wshtcpip.dll
ModLoad: 75880000 75899000   C:\Windows\system32\iphlpapi.dll
ModLoad: 75840000 75875000   C:\Windows\system32\dhcpcsvc.DLL
ModLoad: 75ab0000 75adb000   C:\Windows\system32\DNSAPI.dll
ModLoad: 75830000 75837000   C:\Windows\system32\WINNSI.DLL
ModLoad: 75810000 75830000   C:\Windows\system32\dhcpcsvc6.DLL
ModLoad: 74270000 74322000   C:\Windows\system32\WindowsCodecs.dll
ModLoad: 75df0000 75e1c000   C:\Windows\system32\apphelp.dll
ModLoad: 10000000 10084000   TORTOISESVN.dll
ModLoad: 10000000 10084000   C:\Program Files\TortoiseSVN\bin\tortoisesvn.dll
ModLoad: 76190000 7625f000   C:\Windows\system32\WININET.dll
ModLoad: 77830000 77833000   C:\Windows\system32\Normaliz.dll
ModLoad: 76090000 760d5000   C:\Windows\system32\iertutil.dll
ModLoad: 6eec0000 6eee2000   C:\Program Files\TortoiseSVN\bin\libapr_tsvn.dll
ModLoad: 70c80000 70d1b000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCR80.dll
ModLoad: 6ee60000 6ee89000   C:\Program Files\TortoiseSVN\bin\libaprutil_tsvn.dll
ModLoad: 6ee50000 6ee5e000   C:\Program Files\TortoiseSVN\bin\libapriconv_tsvn.dll
ModLoad: 01400000 0140c000   C:\Program Files\TortoiseSVN\bin\intl3_svn.dll
ModLoad: 70be0000 70c67000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCP80.dll
ModLoad: 73240000 73245000   C:\Windows\system32\SHFOLDER.dll
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 753e0000 75418000   C:\Windows\system32\rsaenh.dll
ModLoad: 60300000 60324000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\softokn3.dll
ModLoad: 60460000 60499000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\freebl3.dll
ModLoad: 602b0000 602f4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssckbi.dll
Symbol search path is: SRV*c:\symbols*http://symbols.mozilla.org/firefox;SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is: 
ModLoad: 00400000 00416000   firefox.exe
ModLoad: 77700000 7781e000   ntdll.dll
ModLoad: 77030000 77108000   C:\Windows\system32\kernel32.dll
eax=000000c0 ebx=00340180 ecx=00000000 edx=00000000 esi=00000000 edi=00000000
eip=77760f34 esp=011eff0c ebp=011eff7c iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000246
ntdll!KiFastSystemCallRet:
77760f34 c3              ret
0:001> g
ModLoad: 604a0000 60d30000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xul.dll
ModLoad: 60220000 60287000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\sqlite3.dll
ModLoad: 6bee0000 6bf8d000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\MOZCRT19.dll
ModLoad: 772e0000 7738a000   C:\Windows\system32\msvcrt.dll
ModLoad: 60100000 60197000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\js3250.dll
ModLoad: 600b0000 600e0000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nspr4.dll
ModLoad: 775a0000 7765f000   C:\Windows\system32\ADVAPI32.dll
ModLoad: 76de0000 76ea3000   C:\Windows\system32\RPCRT4.dll
ModLoad: 728b0000 728b7000   C:\Windows\system32\WSOCK32.dll
ModLoad: 76110000 7613d000   C:\Windows\system32\WS2_32.dll
ModLoad: 77820000 77826000   C:\Windows\system32\NSI.dll
ModLoad: 74af0000 74b23000   C:\Windows\system32\WINMM.dll
ModLoad: 77660000 776fe000   C:\Windows\system32\USER32.dll
ModLoad: 76140000 7618b000   C:\Windows\system32\GDI32.dll
ModLoad: 77110000 77254000   C:\Windows\system32\ole32.dll
ModLoad: 76280000 7630c000   C:\Windows\system32\OLEAUT32.dll
ModLoad: 74ab0000 74ae8000   C:\Windows\system32\OLEACC.dll
ModLoad: 60440000 60458000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\smime3.dll
ModLoad: 60350000 603f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nss3.dll
ModLoad: 60400000 60414000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssutil3.dll
ModLoad: 600f0000 600f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plc4.dll
ModLoad: 600e0000 600e7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plds4.dll
ModLoad: 60420000 6043e000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\ssl3.dll
ModLoad: 76310000 76dde000   C:\Windows\system32\SHELL32.dll
ModLoad: 77850000 778a5000   C:\Windows\system32\SHLWAPI.dll
ModLoad: 756c0000 756c8000   C:\Windows\system32\VERSION.dll
ModLoad: 72c70000 72cb1000   C:\Windows\system32\WINSPOOL.DRV
ModLoad: 77260000 772d4000   C:\Windows\system32\COMDLG32.dll
ModLoad: 74d60000 74ef4000   C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.6000.16386_none_5d07289e07e1d100\COMCTL32.dll
ModLoad: 76260000 7627e000   C:\Windows\system32\IMM32.dll
ModLoad: 75fc0000 76087000   C:\Windows\system32\MSCTF.dll
ModLoad: 75300000 75305000   C:\Windows\system32\MSIMG32.dll
ModLoad: 77520000 7759d000   C:\Windows\system32\USP10.dll
ModLoad: 60d30000 60d37000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xpcom.dll
(16ec.12c4): Break instruction exception - code 80000003 (first chance)
eax=00000000 ebx=00000000 ecx=0012fb00 edx=77760f34 esi=fffffffe edi=777c5d14
eip=77742ea8 esp=0012fb18 ebp=0012fb48 iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000246
ntdll!DbgBreakPoint:
77742ea8 cc              int     3
1:002> g
ModLoad: 77840000 77849000   C:\Windows\system32\LPK.DLL
ModLoad: 71ea0000 71f7c000   C:\Windows\system32\dbghelp.dll
ModLoad: 75060000 7509f000   C:\Windows\system32\uxtheme.dll
ModLoad: 77390000 77519000   C:\Windows\system32\SETUPAPI.dll
ModLoad: 75e70000 75e8e000   C:\Windows\system32\USERENV.dll
ModLoad: 75e50000 75e64000   C:\Windows\system32\Secur32.dll
ModLoad: 74650000 74707000   C:\Windows\system32\PROPSYS.dll
ModLoad: 778b0000 77934000   C:\Windows\system32\CLBCatQ.DLL
ModLoad: 601a0000 601b4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\components\browserdirprovider.dll
ModLoad: 75650000 7568b000   C:\Windows\system32\mswsock.dll
ModLoad: 752f0000 752f6000   C:\Windows\System32\wshtcpip.dll
ModLoad: 75880000 75899000   C:\Windows\system32\iphlpapi.dll
ModLoad: 75840000 75875000   C:\Windows\system32\dhcpcsvc.DLL
ModLoad: 75ab0000 75adb000   C:\Windows\system32\DNSAPI.dll
ModLoad: 75830000 75837000   C:\Windows\system32\WINNSI.DLL
ModLoad: 75810000 75830000   C:\Windows\system32\dhcpcsvc6.DLL
ModLoad: 74a90000 74a9f000   C:\Windows\system32\NLAapi.dll
ModLoad: 728d0000 728d8000   C:\Windows\System32\winrnr.dll
ModLoad: 76eb0000 76ef9000   C:\Windows\system32\WLDAP32.dll
ModLoad: 75fb0000 75fb7000   C:\Windows\system32\PSAPI.DLL
ModLoad: 728c0000 728cf000   C:\Windows\system32\napinsp.dll
ModLoad: 72450000 72462000   C:\Windows\system32\pnrpnsp.dll
ModLoad: 16080000 16099000   C:\Program Files\Bonjour\mdnsNSP.dll
ModLoad: 74270000 74322000   C:\Windows\system32\WindowsCodecs.dll
ModLoad: 75df0000 75e1c000   C:\Windows\system32\apphelp.dll
ModLoad: 10000000 10084000   TORTOISESVN.dll
ModLoad: 10000000 10084000   C:\Program Files\TortoiseSVN\bin\tortoisesvn.dll
ModLoad: 76190000 7625f000   C:\Windows\system32\WININET.dll
ModLoad: 77830000 77833000   C:\Windows\system32\Normaliz.dll
ModLoad: 76090000 760d5000   C:\Windows\system32\iertutil.dll
ModLoad: 6eec0000 6eee2000   C:\Program Files\TortoiseSVN\bin\libapr_tsvn.dll
ModLoad: 70c80000 70d1b000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCR80.dll
ModLoad: 6ee60000 6ee89000   C:\Program Files\TortoiseSVN\bin\libaprutil_tsvn.dll
ModLoad: 6ee50000 6ee5e000   C:\Program Files\TortoiseSVN\bin\libapriconv_tsvn.dll
ModLoad: 014e0000 014ec000   C:\Program Files\TortoiseSVN\bin\intl3_svn.dll
ModLoad: 70be0000 70c67000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCP80.dll
ModLoad: 73240000 73245000   C:\Windows\system32\SHFOLDER.dll
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 753e0000 75418000   C:\Windows\system32\rsaenh.dll
ModLoad: 60300000 60324000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\softokn3.dll
ModLoad: 60330000 60348000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssdbm3.dll
ModLoad: 60460000 60499000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\freebl3.dll
ModLoad: 602b0000 602f4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssckbi.dll
ModLoad: 601c0000 601fc000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\components\brwsrcmp.dll
ModLoad: 756b0000 756b6000   C:\Windows\System32\wship6.dll
ModLoad: 72a70000 72a76000   C:\Windows\system32\rasadhlp.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 75920000 75a11000   C:\Windows\system32\CRYPT32.dll
ModLoad: 75a70000 75a82000   C:\Windows\system32\MSASN1.dll
ModLoad: 75000000 75030000   C:\Windows\system32\mlang.dll
ModLoad: 745e0000 74610000   C:\Windows\system32\wdmaud.drv
ModLoad: 749c0000 749c4000   C:\Windows\system32\ksuser.dll
ModLoad: 74aa0000 74aa7000   C:\Windows\system32\AVRT.dll
ModLoad: 74a20000 74a47000   C:\Windows\system32\MMDevAPI.DLL
ModLoad: 75160000 7518d000   C:\Windows\system32\WINTRUST.dll
ModLoad: 760e0000 76109000   C:\Windows\system32\imagehlp.dll
ModLoad: 74440000 74461000   C:\Windows\System32\audioses.dll
ModLoad: 743d0000 74436000   C:\Windows\System32\audioeng.dll
ModLoad: 74560000 74569000   C:\Windows\system32\msacm32.drv
ModLoad: 73f50000 73f65000   C:\Windows\system32\MSACM32.dll
ModLoad: 73f40000 73f47000   C:\Windows\system32\midimap.dll
ModLoad: 75750000 75757000   C:\Windows\system32\credssp.dll
ModLoad: 75450000 75495000   C:\Windows\system32\schannel.dll
ModLoad: 75cc0000 75d2a000   C:\Windows\system32\NETAPI32.dll
ModLoad: 70e70000 70f77000   C:\Windows\system32\shdocvw.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
(16ec.12c4): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=fffffffe ebx=08411b20 ecx=00021fff edx=00000000 esi=01a10ec0 edi=00021840
eip=6012a9d4 esp=0012a8a0 ebp=0012a8b8 iopl=0         nv up ei pl nz na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00010206
js3250!JS_CallTracer+0x54:
6012a9d4 8b51f1          mov     edx,dword ptr [ecx-0Fh] ds:0023:00021ff0=????????
1:002> kp
ChildEBP RetAddr  
0012a8b8 6010974e js3250!JS_CallTracer+0x54
0012a8d8 6012a678 js3250!js_IsArrayLike+0x98e
0012a8f4 6012aa2a js3250!JS_TraceChildren+0x38
0012a920 60144d13 js3250!JS_CallTracer+0xaa
0012a940 6012a678 js3250!js_TraceObject+0x183
0012a95c 6012aa2a js3250!JS_TraceChildren+0x38
0012a988 60144d13 js3250!JS_CallTracer+0xaa
0012a9a8 6012a678 js3250!js_TraceObject+0x183
0012a9c4 6012aa2a js3250!JS_TraceChildren+0x38
0012a9f0 60144d13 js3250!JS_CallTracer+0xaa
0012aa10 6012a678 js3250!js_TraceObject+0x183
0012aa2c 6012aa2a js3250!JS_TraceChildren+0x38
0012aa58 60144d13 js3250!JS_CallTracer+0xaa
0012aa78 6012a678 js3250!js_TraceObject+0x183
0012aa94 6012aa2a js3250!JS_TraceChildren+0x38
0012aac0 60144d13 js3250!JS_CallTracer+0xaa
0012aae0 6012a678 js3250!js_TraceObject+0x183
0012aafc 6012aa2a js3250!JS_TraceChildren+0x38
0012ab28 60144d13 js3250!JS_CallTracer+0xaa
0012ab48 6012a678 js3250!js_TraceObject+0x183
Alright, the last one. The errors seem to be repeating.

BTW, reproducing these errors in the debugger takes almost no time.
--------------------------------
0:000> g
ModLoad: 77840000 77849000   C:\Windows\system32\LPK.DLL
ModLoad: 71ea0000 71f7c000   C:\Windows\system32\dbghelp.dll
ModLoad: 75060000 7509f000   C:\Windows\system32\uxtheme.dll
ModLoad: 77390000 77519000   C:\Windows\system32\SETUPAPI.dll
ModLoad: 75e70000 75e8e000   C:\Windows\system32\USERENV.dll
ModLoad: 75e50000 75e64000   C:\Windows\system32\Secur32.dll
ModLoad: 74650000 74707000   C:\Windows\system32\PROPSYS.dll
ModLoad: 778b0000 77934000   C:\Windows\system32\CLBCatQ.DLL
ModLoad: 601a0000 601b4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\components\browserdirprovider.dll
ModLoad: 75650000 7568b000   C:\Windows\system32\mswsock.dll
ModLoad: 752f0000 752f6000   C:\Windows\System32\wshtcpip.dll
ModLoad: 75880000 75899000   C:\Windows\system32\iphlpapi.dll
ModLoad: 75840000 75875000   C:\Windows\system32\dhcpcsvc.DLL
ModLoad: 75ab0000 75adb000   C:\Windows\system32\DNSAPI.dll
ModLoad: 75830000 75837000   C:\Windows\system32\WINNSI.DLL
ModLoad: 75810000 75830000   C:\Windows\system32\dhcpcsvc6.DLL
ModLoad: 74270000 74322000   C:\Windows\system32\WindowsCodecs.dll
ModLoad: 75df0000 75e1c000   C:\Windows\system32\apphelp.dll
ModLoad: 10000000 10084000   TORTOISESVN.dll
ModLoad: 10000000 10084000   C:\Program Files\TortoiseSVN\bin\tortoisesvn.dll
ModLoad: 76190000 7625f000   C:\Windows\system32\WININET.dll
ModLoad: 77830000 77833000   C:\Windows\system32\Normaliz.dll
ModLoad: 76090000 760d5000   C:\Windows\system32\iertutil.dll
ModLoad: 6eec0000 6eee2000   C:\Program Files\TortoiseSVN\bin\libapr_tsvn.dll
ModLoad: 70c80000 70d1b000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCR80.dll
ModLoad: 6ee60000 6ee89000   C:\Program Files\TortoiseSVN\bin\libaprutil_tsvn.dll
ModLoad: 6ee50000 6ee5e000   C:\Program Files\TortoiseSVN\bin\libapriconv_tsvn.dll
ModLoad: 01270000 0127c000   C:\Program Files\TortoiseSVN\bin\intl3_svn.dll
ModLoad: 70be0000 70c67000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCP80.dll
ModLoad: 73240000 73245000   C:\Windows\system32\SHFOLDER.dll
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 753e0000 75418000   C:\Windows\system32\rsaenh.dll
ModLoad: 60300000 60324000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\softokn3.dll
ModLoad: 60460000 60499000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\freebl3.dll
ModLoad: 602b0000 602f4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssckbi.dll
Symbol search path is: SRV*c:\symbols*http://symbols.mozilla.org/firefox;SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is: 
ModLoad: 00400000 00416000   firefox.exe
eax=00000000 ebx=00000000 ecx=0012fea4 edx=00000000 esi=00000000 edi=811c5328
eip=77760f34 esp=0012fef0 ebp=0012ff00 iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000246
ntdll!KiFastSystemCallRet:
77760f34 c3              ret
0:000> g
ModLoad: 77700000 7781e000   ntdll.dll
ModLoad: 77030000 77108000   C:\Windows\system32\kernel32.dll
ModLoad: 604a0000 60d30000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xul.dll
ModLoad: 60220000 60287000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\sqlite3.dll
ModLoad: 6df60000 6e00d000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\MOZCRT19.dll
ModLoad: 772e0000 7738a000   C:\Windows\system32\msvcrt.dll
ModLoad: 60100000 60197000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\js3250.dll
ModLoad: 600b0000 600e0000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nspr4.dll
ModLoad: 775a0000 7765f000   C:\Windows\system32\ADVAPI32.dll
ModLoad: 76de0000 76ea3000   C:\Windows\system32\RPCRT4.dll
ModLoad: 728b0000 728b7000   C:\Windows\system32\WSOCK32.dll
ModLoad: 76110000 7613d000   C:\Windows\system32\WS2_32.dll
ModLoad: 77820000 77826000   C:\Windows\system32\NSI.dll
ModLoad: 74af0000 74b23000   C:\Windows\system32\WINMM.dll
ModLoad: 77660000 776fe000   C:\Windows\system32\USER32.dll
ModLoad: 76140000 7618b000   C:\Windows\system32\GDI32.dll
ModLoad: 77110000 77254000   C:\Windows\system32\ole32.dll
ModLoad: 76280000 7630c000   C:\Windows\system32\OLEAUT32.dll
ModLoad: 74ab0000 74ae8000   C:\Windows\system32\OLEACC.dll
ModLoad: 60440000 60458000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\smime3.dll
ModLoad: 60350000 603f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nss3.dll
ModLoad: 60400000 60414000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssutil3.dll
ModLoad: 600f0000 600f7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plc4.dll
ModLoad: 600e0000 600e7000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\plds4.dll
ModLoad: 60420000 6043e000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\ssl3.dll
ModLoad: 76310000 76dde000   C:\Windows\system32\SHELL32.dll
ModLoad: 77850000 778a5000   C:\Windows\system32\SHLWAPI.dll
ModLoad: 756c0000 756c8000   C:\Windows\system32\VERSION.dll
ModLoad: 72c70000 72cb1000   C:\Windows\system32\WINSPOOL.DRV
ModLoad: 77260000 772d4000   C:\Windows\system32\COMDLG32.dll
ModLoad: 74d60000 74ef4000   C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.6000.16386_none_5d07289e07e1d100\COMCTL32.dll
ModLoad: 76260000 7627e000   C:\Windows\system32\IMM32.dll
ModLoad: 75fc0000 76087000   C:\Windows\system32\MSCTF.dll
ModLoad: 75300000 75305000   C:\Windows\system32\MSIMG32.dll
ModLoad: 77520000 7759d000   C:\Windows\system32\USP10.dll
ModLoad: 60d30000 60d37000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\xpcom.dll
(1330.17c4): Break instruction exception - code 80000003 (first chance)
eax=00000000 ebx=00000000 ecx=0012fb00 edx=77760f34 esi=fffffffe edi=777c5d14
eip=77742ea8 esp=0012fb18 ebp=0012fb48 iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000246
ntdll!DbgBreakPoint:
77742ea8 cc              int     3
1:001> g
ModLoad: 77840000 77849000   C:\Windows\system32\LPK.DLL
ModLoad: 71ea0000 71f7c000   C:\Windows\system32\dbghelp.dll
ModLoad: 75060000 7509f000   C:\Windows\system32\uxtheme.dll
ModLoad: 77390000 77519000   C:\Windows\system32\SETUPAPI.dll
ModLoad: 75e70000 75e8e000   C:\Windows\system32\USERENV.dll
ModLoad: 75e50000 75e64000   C:\Windows\system32\Secur32.dll
ModLoad: 74650000 74707000   C:\Windows\system32\PROPSYS.dll
ModLoad: 778b0000 77934000   C:\Windows\system32\CLBCatQ.DLL
ModLoad: 601a0000 601b4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\components\browserdirprovider.dll
ModLoad: 75650000 7568b000   C:\Windows\system32\mswsock.dll
ModLoad: 752f0000 752f6000   C:\Windows\System32\wshtcpip.dll
ModLoad: 75880000 75899000   C:\Windows\system32\iphlpapi.dll
ModLoad: 75840000 75875000   C:\Windows\system32\dhcpcsvc.DLL
ModLoad: 75ab0000 75adb000   C:\Windows\system32\DNSAPI.dll
ModLoad: 75830000 75837000   C:\Windows\system32\WINNSI.DLL
ModLoad: 75810000 75830000   C:\Windows\system32\dhcpcsvc6.DLL
ModLoad: 74a90000 74a9f000   C:\Windows\system32\NLAapi.dll
ModLoad: 728d0000 728d8000   C:\Windows\System32\winrnr.dll
ModLoad: 76eb0000 76ef9000   C:\Windows\system32\WLDAP32.dll
ModLoad: 75fb0000 75fb7000   C:\Windows\system32\PSAPI.DLL
ModLoad: 728c0000 728cf000   C:\Windows\system32\napinsp.dll
ModLoad: 72450000 72462000   C:\Windows\system32\pnrpnsp.dll
ModLoad: 16080000 16099000   C:\Program Files\Bonjour\mdnsNSP.dll
ModLoad: 74270000 74322000   C:\Windows\system32\WindowsCodecs.dll
ModLoad: 75df0000 75e1c000   C:\Windows\system32\apphelp.dll
ModLoad: 10000000 10084000   TORTOISESVN.dll
ModLoad: 10000000 10084000   C:\Program Files\TortoiseSVN\bin\tortoisesvn.dll
ModLoad: 76190000 7625f000   C:\Windows\system32\WININET.dll
ModLoad: 77830000 77833000   C:\Windows\system32\Normaliz.dll
ModLoad: 76090000 760d5000   C:\Windows\system32\iertutil.dll
ModLoad: 6eec0000 6eee2000   C:\Program Files\TortoiseSVN\bin\libapr_tsvn.dll
ModLoad: 70c80000 70d1b000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCR80.dll
ModLoad: 6ee60000 6ee89000   C:\Program Files\TortoiseSVN\bin\libaprutil_tsvn.dll
ModLoad: 6ee50000 6ee5e000   C:\Program Files\TortoiseSVN\bin\libapriconv_tsvn.dll
ModLoad: 01510000 0151c000   C:\Program Files\TortoiseSVN\bin\intl3_svn.dll
ModLoad: 70be0000 70c67000   C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.762_none_10b2f55f9bffb8f8\MSVCP80.dll
ModLoad: 73240000 73245000   C:\Windows\system32\SHFOLDER.dll
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ee40000 6ee46000   C:\Program Files\TortoiseSVN\iconv\_tbl_simple.so
ModLoad: 6e060000 6e067000   C:\Program Files\TortoiseSVN\iconv\windows-1252.so
ModLoad: 6ed50000 6ed56000   C:\Program Files\TortoiseSVN\iconv\utf-8.so
ModLoad: 753e0000 75418000   C:\Windows\system32\rsaenh.dll
ModLoad: 60300000 60324000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\softokn3.dll
ModLoad: 60330000 60348000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssdbm3.dll
ModLoad: 60460000 60499000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\freebl3.dll
ModLoad: 602b0000 602f4000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\nssckbi.dll
ModLoad: 601c0000 601fc000   C:\Program Files\Mozilla Firefox 3 Beta 4 pre 02-27-08\components\brwsrcmp.dll
ModLoad: 756b0000 756b6000   C:\Windows\System32\wship6.dll
ModLoad: 72a70000 72a76000   C:\Windows\system32\rasadhlp.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
ModLoad: 75920000 75a11000   C:\Windows\system32\CRYPT32.dll
ModLoad: 75a70000 75a82000   C:\Windows\system32\MSASN1.dll
ModLoad: 75000000 75030000   C:\Windows\system32\mlang.dll
ModLoad: 745e0000 74610000   C:\Windows\system32\wdmaud.drv
ModLoad: 749c0000 749c4000   C:\Windows\system32\ksuser.dll
ModLoad: 74aa0000 74aa7000   C:\Windows\system32\AVRT.dll
ModLoad: 74a20000 74a47000   C:\Windows\system32\MMDevAPI.DLL
ModLoad: 75160000 7518d000   C:\Windows\system32\WINTRUST.dll
ModLoad: 760e0000 76109000   C:\Windows\system32\imagehlp.dll
ModLoad: 74440000 74461000   C:\Windows\System32\audioses.dll
ModLoad: 743d0000 74436000   C:\Windows\System32\audioeng.dll
ModLoad: 74560000 74569000   C:\Windows\system32\msacm32.drv
ModLoad: 73f50000 73f65000   C:\Windows\system32\MSACM32.dll
ModLoad: 73f40000 73f47000   C:\Windows\system32\midimap.dll
ModLoad: 75750000 75757000   C:\Windows\system32\credssp.dll
ModLoad: 75450000 75495000   C:\Windows\system32\schannel.dll
ModLoad: 75cc0000 75d2a000   C:\Windows\system32\NETAPI32.dll
ModLoad: 70e70000 70f77000   C:\Windows\system32\shdocvw.dll
ModLoad: 30000000 30395000   C:\Windows\system32\Macromed\Flash\NPSWF32.dll
(1330.17c4): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=06c0fe70 ebx=00000000 ecx=06c0fff0 edx=0008000d esi=0905953c edi=01a10ec0
eip=6012997d esp=0012baa8 ebp=0012bad0 iopl=0         nv up ei pl nz na po nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00010202
js3250!js_GetGCThingTraceKind+0x1d:
6012997d 0fb77206        movzx   esi,word ptr [edx+6]     ds:0023:00080013=????
1:001> kp
ChildEBP RetAddr  
0012baa8 604b8d20 js3250!js_GetGCThingTraceKind+0x1d
0012bad0 609dfe6f xul!nsXPConnect::Traverse(void * p = 0x06c0fe70, class nsCycleCollectionTraversalCallback * cb = 0x0012bb0c)+0x29 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\js\src\xpconnect\src\nsxpconnect.cpp @ 900]
0012bafc 609e03ee xul!nsCycleCollector::MarkRoots(class GCGraphBuilder * builder = 0x01a10ec0)+0x46 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\base\nscyclecollector.cpp @ 1456]
0012bb54 604b8a23 xul!nsCycleCollector::BeginCollection(void)+0x63 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\base\nscyclecollector.cpp @ 2320]
0012bb68 6012ba35 xul!XPCCycleCollectGCCallback(struct JSContext * cx = 0x01a10ec0, JSGCStatus status = JSGC_MARK_END (2))+0x2f [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\js\src\xpconnect\src\nsxpconnect.cpp @ 437]
0012bc2c 601037ad js3250!js_GC+0x455
0012bc44 604b8ba9 js3250!JS_GC+0x2d
0012bd0c 609e02b3 xul!nsXPConnect::Collect(void)+0x9f [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\js\src\xpconnect\src\nsxpconnect.cpp @ 527]
0012fbbc 6066ef7d xul!nsCycleCollector::Collect(unsigned int aTryCollections = 1)+0x98 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\base\nscyclecollector.cpp @ 2191]
0012fbc4 6066f035 xul!nsJSContext::CC(void)+0x39 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\dom\src\base\nsjsenvironment.cpp @ 3345]
0012fbe0 6066f051 xul!nsJSContext::MaybeCC(int aHigherProbability = 1)+0xa8 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\dom\src\base\nsjsenvironment.cpp @ 3397]
0012fbe8 6066f09b xul!nsJSContext::CCIfUserInactive(void)+0x10 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\dom\src\base\nsjsenvironment.cpp @ 3413]
0012fbf0 609f2987 xul!nsJSContext::Notify(class nsITimer * timer = 0x05854b80)+0x43 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\dom\src\base\nsjsenvironment.cpp @ 3442]
0012fc10 609f2a10 xul!nsTimerImpl::Fire(void)+0xb0 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\threads\nstimerimpl.cpp @ 416]
0012fc1c 609eb877 xul!nsTimerEvent::Run(void)+0x1a [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\threads\nstimerimpl.cpp @ 490]
0012fc3c 609cbbee xul!nsThread::ProcessNextEvent(int mayWait = 1, int * result = 0x0012fc50)+0xc0 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\xpcom\threads\nsthread.cpp @ 511]
0012fc54 609633d1 xul!NS_ProcessNextEvent_P(class nsIThread * thread = 0x06c0fe70, int mayWait = 1244920)+0x1d [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\obj-fx-trunk\xpcom\build\nsthreadutils.cpp @ 227]
0012fc60 608a2691 xul!nsBaseAppShell::Run(void)+0x25 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\widget\src\xpwidgets\nsbaseappshell.cpp @ 150]
0012fc6c 604a8457 xul!nsAppStartup::Run(void)+0x1e [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\toolkit\components\startup\src\nsappstartup.cpp @ 182]
*** WARNING: Unable to verify checksum for firefox.exe
0012fef8 00401466 xul!XRE_main(int argc = 1, char ** argv = 0x008130a0, struct nsXREAppData * aAppData = 0x00819440)+0x1792 [e:\builds\tinderbox\fx-trunk\winnt_5.2_depend\mozilla\toolkit\xre\nsapprunner.cpp @ 3151]
Product: Firefox → Core
QA Contact: general → general
An edited IRC log of me debugging (my flailing with windbg edited out):

I might have done this math wrong, but it agrees with the THING_TO_ARENA math in jsgc.c, I think:
18:06 < crowder> 003c0ff0 is the JSGCArenaInfo pointer
18:06 < brendan> is it a valid-looking arena-info struct?
18:07 < brendan> (that's just an address near the end of a page -- but is the page mapped currently at all, and if 
                 so, is it a JS GC managed page?)
18:07 < brendan> just hexdump 

From the frame of nsXPConnect::Traverse:
18:19 < crowder> 1:002> dv
18:19 < crowder>            this = 0x00289460
18:19 < crowder>               p = 0x003c0020
18:19 < crowder>              cb = 0x0012ba4c

18:22 < crowder> ???? must be windbg's way of telling me the memory is inaddressable

According to my earlier math, p should have JSGCArenaInfo * at 0x3c0ff0 (see js_GetGCThingTraceKind):
18:23 < brendan_work> just dump 4 words at 0x3c0ff0
18:23 < crowder> 1:002> dd 0x3c0ff0
18:23 < crowder> 003c0ff0  ???????? ???????? ???????? ????????
18:23 < crowder> 003c1000  ???????? ???????? ???????? ????????
18:24 < brendan_work> it's not a mapped page
18:24 < brendan_work> so how did we compute p?
18:27 < crowder> brendan_work: It's being passed as the "thing" pointer into xpconnect
18:32 < crowder> brendan:  It's coming out of a NodePool from CC
18:32 < crowder> in nsCycleCollector::MarkRoots
I really need someone with cycle-collector expertise to work with Roman on this.
According to breakpad this is the #12 topcrash on Firefox 3.0b4pre...
Flags: blocking1.9?
Component: General → XPCOM
Flags: blocking1.9? → blocking1.9+
Priority: -- → P2
QA Contact: general → xpcom
(In reply to comment #29)
> 18:24 < brendan_work> so how did we compute p?
> 18:27 < crowder> brendan_work: It's being passed as the "thing" pointer into
> xpconnect
> 18:32 < crowder> brendan:  It's coming out of a NodePool from CC
> 18:32 < crowder> in nsCycleCollector::MarkRoots

So either an XPCOM object told the cycle collector it holds that JS object, or the JS tracing code told the cycle collector another JS object holds that JS object.
Do you all who's going to work on this bug think that you've gotten enough data to locate the cause and it's OK for me to update to the latest nightly build or I should keep my evironment unchanged because somebody is going to continue debugging on my machine?
These also happens under OS X as following ids show (thanks to juanb):

bp-277862eb-eafc-11dc-84ae-001a4bd46e84
bp-91468c4a-eae2-11dc-bff0-001a4bd43e5c

This bug has qawanted set. Is this still valid? If yes, what information do you need?
OS: Windows Vista → All
Hardware: PC → All
So far this is the #8 topcrash for Firefox 3.0beta4.
Keywords: qawanted
And keep in mind that not all crashes are reported (the crash reporter doesn't get activated), and I suppose people avoid using FF on Yahoo Mail or any other site where it crashes regularly.
Do you have any Firefox extensions/addons installed?  (In particular, do you have a yahoo toolbar extension installed?)
could you please uninstall tortoisesvn?

dbaron: he said he was using a clean profile (see comment 19 and comment 25)

the only other things worth poking from a foreign object perspective are flash (NPSWF32) and bonjour (mdnsNSP).

I'd simply rename the .dll's to .dul and restart. and he doesn't have the yahoo state plugin (comment 19 + lm output confirms).
I need tortoisesvn for my development activities, so I can't uninstall it. I can update it, though. It's crashed a file manager I use in the past and also crashed Windows Explorer. But Firefox isn't supposed to interact with tortoisesvn.

timeless is right -- I don't have any yahoo toolbar or extension. I have others in one profile, but FF has crashes with a newly created profile too. 

Yahoo Mail uses Flash stuff often, so maybe the problem is related to it, but the debugger output showed some cycle recycling code when FF crashed. Doesn't this mean anything? I can disable or even remove Flash plugin and see if anything changes.
tortoise interacts w/ shell32, which is used by common dialogs (e.g. open). and as you know, it isn't trustworthy :).

if you're an administrator, you can create a second user and setup tortoisesvn so that it is only installed for the one user. (this may require registry hacking, but it should be fairly easy to do, if things are installed globally, find the keys, export them, delete them, change the exported file to say HKEY_CURRENT_USER, and import it for the one user.)

don't worry about CC, we'll worry about that, just help us by reducing the number of variables on your system (even temporarily, just uninstalling tortoisesvn for one run to verify that it still crashes, although i'd much prefer it not be in memory at all...).
I can confirm that this bug exists on both the Windows and OS X versions of Firefox 3 beta 4.  I've gotten at least 3 crashes of the browser on my Mac, and one on Windows, all while using Yahoo Mail (the new AJAX version).  The crash reporter has reported all of them.  Sometimes, I was clicking on a folder in Yahoo Mail.  Sometimes, I had just tried to close a tab containing Yahoo Mail.
I should note, before anyone asks (since I know you will), the only plug-in that I am running is Adblock Plus.
Oh, I forgot to comment, but I spent a day last week running the browser on Yahoo mail under the relatively robust memory scrubbing tools on mac (both the standard malloc behavior mods and libGMalloc) and I couldn't reproduce a crash.
I see this bug everytime I log into Yahoo, and it's forced me to use Yahoo Classic Mail.  I'll try reproducing it on a clean profile tonight.
These crashes are showing up at http://crash-stats.mozilla.com/ on Windows, Mac, and Linux.  (Comments on both Mac and Windows implicate Yahoo! mail; I didn't see any recent b4 Linux crashes with such comments, though, but the sample size is pretty small and most people don't comment.)

I find it interesting that, while most of the crashes are invalid memory access, some percentage of them are floating point exception / divide by zero.
http://crash-stats.mozilla.com/report/index/65f9e73a-ef92-11dc-9cc1-001a4bd46e84

No extensions, several tabs open, a few bookmarks and rss feeds added to the toolbar. To reproduce, almost reliably, I have been going to my yahoo mail account, clicked on a couple of messages, clicked on the Spam button, then quickly clicked on the Spam folder, and then some other folder. It seems to depend on timing. See crash report comments.
David said: "Comments on both Mac and Windows implicate Yahoo! mail". But you still agree that FF shouldn't crash regardless of what happens on a web page, right?

Does occurrence of crashes in *both* Windows and Mac reduce the need for me to mess with tortoisesvn?

juan, following your link leads to Error 404.
It is working now. Maybe breakpad had indigestion? Check this again: http://crash-stats.mozilla.com/report/index/65f9e73a-ef92-11dc-9cc1-001a4bd46e84
(In reply to comment #47)
> David said: "Comments on both Mac and Windows implicate Yahoo! mail". But you
> still agree that FF shouldn't crash regardless of what happens on a web page,
> right?

Correct.


Could somebody who sees this on a clean profile look at about:plugins and report back on what plugins you have installed?
Attached file Plugins from Mac 10.5
Attached is the set of plugins I have installed. Using a new profile and Beta 4 I am able to crash relatively easy.
I just created a new profile and got a crash fast (it got reported -- http://crash-stats.mozilla.com/report/index/e66d9c21-efa8-11dc-866a-001a4bd43ed6).

Plugins installed:
Adobe Acrobat
Divx
Divx Player Netscape plugin
Divx Web Player
Java Platform SE 6
Mozilla Default plugin
RealNetworks Rhapsody Player plugin
Shockwave Flash
Silverlight Plug-in

Marcia, how did you get that detailed list?
Roman: Type about:plugins in the URL bar to get a more detailed list. Since you crashed on Windows it would be helpful for you to attach the Windows plugins you had to this bug.
Never mind, Marcia. I found it.
(In reply to comment #38)
> could you please uninstall tortoisesvn?

> the only other things worth poking from a foreign object perspective are flash
> (NPSWF32) and bonjour (mdnsNSP).

There are reports of crashes without any of these, with comments referring to Yahoo! mail.
Summary: Firefox 3 beta crashes on Yahoo mail "beta" → Firefox 3 beta crashes on new Yahoo mail
I am able to repro in a Linux x86_64 debug build in the Yahoo mail test account that Marcia was using (although I couldn't using my own account).
Attached file gdb session #1
Clearly somebody's stomping on somebody else's memory, since the same chunk of memory can't be both the slots of an array (which hasn't been finalized, else its dslots would be null) and an nsXMLElement.

Next up: valgrind.
Here's the tail of the output under valgrind, starting from just before the first warning.
I started with a new clean profile, and went to the new Yahoo Mail! and it
crashed almost instantaneously.  I then disabled all plugins, and went back to Yahoo Mail, and still experienced the crash.

My build is 

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b5pre) Gecko/2008031004
Minefield/3.0b5pre

I know what the problem is -- more in a bit.
Assignee: nobody → dbaron
Component: XPCOM → JavaScript Engine
The suspense is killing me!
For what it's worth, I think the steps to reproduce are:
 * load a yahoo mail inbox that has a lot of messages in it (more than 50 or so)
 * check the box next to the first message
 * hit delete
 * do some other stuff until garbage collection happens
Depends on: 422286
David, I don't believe the 2nd and 3rd steps are necessary as I almost never use them and have crashes often. I do have many thousands of messages in my inbox, though.
I landed a fix for an array problem just now, tomorrow's nightlies should have it.  Here's to hoping it's the one, and thanks a ton to David for the investigation.
Shaver, any bug we can refer to? Or is it the security bug 422286?
Yeah, we should probably just open that up; I'll ask the reporter.
Fixed on trunk (and in today's nightlies, I think) by shaver's checkin of bug 422286.
Status: NEW → RESOLVED
Closed: 16 years ago16 years ago
Resolution: --- → FIXED
Have people who were seeing this had a chance to test new nightlies to verify that it is actually fixed?
I played with it quite a bit last night, and it didn't crash for me.  Seems fixed to me.  Thanks.
Sure, I've been using 03-12 build quite extensively on Yahoo Mail and haven't had a crash, but I wanted a little more time before I'd confirm this as fixed.

If, meanwhile, somebody could also fix bug 410903, FF 3 could be used with Yahoo Mail successfully.
Attached image Add-Ons Installed
Add-Ons I have installed
Attached image Error Screenshots
using Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9b5pre) Gecko/2008031304 Minefield/3.0b5pre, and following the same STR that I showed dbaron in the lab, I just crashed, but in this case I was not using a clean profile. Breakpad: http://crash-stats.mozilla.com/report/index/331426fd-f143-11dc-b870-001a4bd43e5c
(In reply to comment #73)
> profile. Breakpad:
> http://crash-stats.mozilla.com/report/index/331426fd-f143-11dc-b870-001a4bd43e5c

Marcia, this crash report cannot be found. Could you try again and give another one? 

It's likely still processing. You'll receive a 404 error until it's done.
(In reply to comment #75)
> It's likely still processing. You'll receive a 404 error until it's done.

It takes over a hour now. Unlikely for breakpad.

Jim, which version of Firefox are you using when it crashed for you? Can you please give us your build id?
Add-ons: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}:0.7.5.3,{D4DD63FA-01E4-46a7-B6B1-EDAB7D6AD389}:0.9.6.1,{73a6fe31-595d-460b-a920-fcc0f8843232}:1.4.9.5,{5872365e-67d1-4afd-9480-fd293bebd20d}:1.7.2,{972ce4c6-7e08-4474-a285-3208198ce6fd}:2.0
BuildID: 2008030317
CrashTime: 1205451270
InstallTime: 1204990456
ProductName: Firefox
SecondsSinceLastCrash: 2375
StartupTime: 1205448897
Theme: modernpinball
URL: http://us.mg2.mail.yahoo.com/dc/launch?.rand=apnp0bmlse89m
UserID: 3dc09085-3709-b24e-b86a-603f2676989a
Vendor: Mozilla
Version: 3.0b4

This report also contains technical information about the state of the application when it crashed.
Status: RESOLVED → REOPENED
Resolution: FIXED → ---
(In reply to comment #76)
> It takes over a hour now. Unlikely for breakpad.

They were taking 4-5 hours yesterday, I think.

> Jim, which version of Firefox are you using when it crashed for you? Can you
> please give us your build id?

It's in the screenshot in attachment 309222 [details]: 1.9.0.2988 translates to,
by undoing the calculation done here:
http://bonsai.mozilla.org/cvsblame.cgi?file=/mozilla/config/version_win.pl&rev=3.17&mark=48-59,222,253
using:
date --date=@$(($(date +%s --date="2000-01-01 12:00") + 86400 * 2988))
yields 2008-03-07, which probably means 1.9b4 release.
Don't reopen a bug on the basis of a build from before it was fixed.
Status: REOPENED → RESOLVED
Closed: 16 years ago16 years ago
Resolution: --- → FIXED
I got a weird message when FF crashed on me this time -- a security feature Windows Vista calls Data Execution Prevention. I haven't seen it listed here as a part of the crash issue, but I guess Yahoo Mail or FF incorrectly hogs memory somehow. Windows then closes FF and (supposedly, but apparently not always) notifies the user. 

If you get this error and you're running Windows Vista, there is a way to change your memory settings to possibly prevent this from continuing to happen. I won't list the entire set of instructions on how to change this -- just search "Change Data Execution Protection settings" and you should have no problems finding the help page. I won't guarantee it will keep FF from crashing (or Windows from closing it, I guess), but it might help out a bit. 
(In reply to comment #84)
> I got a weird message when FF crashed on me this time -- a security feature
> Windows Vista calls Data Execution Prevention. [...]I guess Yahoo Mail or FF
> incorrectly hogs memory somehow. Windows then closes FF

No, it's not hogging memory, the process is treating allocated memory ("data") as if it were program code ("executing" it). This is the kind of flaw hackers use: stuff downloaded from the internet is "data" and if they can trick Firefox (or another program) into executing it they win. Please do not turn off DEP, it's an important security feature Microsoft has added to Windows.

Triggering DEP does not mean you've been hacked, but it does indicate that the program has a bug that is most likely exploitable.

But this bug was reported fixed by bug 422286 which might have caused an access violation crash but should not have triggered DEP so you might be reporting a completely different crash.
(In reply to comment #88)
> But this bug was reported fixed by bug 422286 which might have caused an access
> violation crash but should not have triggered DEP so you might be reporting a
> completely different crash.

No, when it read the arbitrary memory, it copied it into an array buffer where that memory would be treated as jsvals, some of which are things that have function pointers inside them.
This is the dump file created when Mozilla Firefox 3 Beta 4 crashed while using Yahoo Mail.
matt.welshans@gmail.com: we aren't asking for any further information, this bug is fixed in trunk and you can either download a nightly today or wait for the next beta release.
I never had Yahoo mail crash with Beta 3, but with Beta 4 it crashes all of the time. Generally when trying to delete SPAM e-mail.
jonathan, something was changed after beta 3 that causes the crashes. This was fixed after beta 4. Download the latest nightly build, and your problem will be solved. http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/
I was using beta4, but the automatic updater updated me back to beta 3! Is that another bug?
(In reply to comment #98)
> I was using beta4, but the automatic updater updated me back to beta 3! Is that
> another bug?

Hard to imagine that it could be the same bug as a crash on Yahoo, I think.  You should file it, if you're certain that's what happened.
I have beta 4 and still it crashes, when I open yahoo mails..This happens most of the time, when I double click on the mail to open it up in a new window... 

Yes, of course it does -- this is a bug in beta4.  It is fixed now on the development trunk, and the fix will be available in beta 5.
Summary: Firefox 3 beta crashes on new Yahoo mail → Firefox 3 beta4 crashes on new Yahoo mail
I'm not able to crash Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.4; en-US; rv:1.9b5pre) Gecko/2008031804 Minefield/3.0b5pre ID:2008031804

Even the crash reports doesn't list a 1.9pre5 build:
http://crash-stats.mozilla.com/report/list?range_unit=weeks&query_search=signature&query_type=contains&signature=js_GetGCThingTraceKind&query=js_GetGCThingTraceKind&range_value=1

=> Verified.
Status: RESOLVED → VERIFIED
Summary: Firefox 3 beta4 crashes on new Yahoo mail → Firefox 3 beta4 crashes on new Yahoo mail [@ js_GetGCThingTraceKind]
Target Milestone: --- → mozilla1.9beta5
Me neither. Seems fixed, indeed. I am glad this didn't get dismissed.
Flags: in-testsuite-
Flags: in-litmus-
It happens again in Beta 5. Especially if I try to open a mail from Tiger Direct which has some images... 
There are really a lot of new crash reports with 3b5 and 3pre:
http://crash-stats.mozilla.com/report/list?range_unit=weeks&query_search=signature&query_type=contains&signature=js_GetGCThingTraceKind&query=js_GetGCThingTraceKind&range_value=1

Timeless, should we open a new bug for that issue? The comments not only report crashes while using Yahoo Mail.
This bug was fixed by a patch that landed. Any new symptom goes in a new bug. That is all :-/.

/be
yeah, file a new bug, and mention this bug in c0 to prevent people from duping it to this one...
Filed bug 427718 for the new crash.
Guys, I am using FF 3 Beta 5 on MS Vista. The problem i am facing looks like similer to the problem which had been discussed in this chain.

While using Yahoo mail (new version), FF crashes frequently while using down arrow or up arrow key to change over to new message.

Please let me know what other data you need from my side for more details on this issue. Pasting below is the event viewer data - 

Log Name:      Application
Source:        Application Error
Date:          19/4/2008 10:04:29 PM
Event ID:      1000
Task Category: (100)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      QWERTY
Description:
Faulting application firefox.exe, version 1.9.0.3007, time stamp 0x47eb31c2, faulting module MOZCRT19.dll, version 8.0.0.0, time stamp 0x47eb3235, exception code 0xc0000005, fault offset 0x00007c88, process id 0x14e4, application start time 0x01c8a1ee0c62013f.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" />
    <EventID Qualifiers="0">1000</EventID>
    <Level>2</Level>
    <Task>100</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2008-04-19T14:04:29.000Z" />
    <EventRecordID>13035</EventRecordID>
    <Channel>Application</Channel>
    <Computer>QWERTY</Computer>
    <Security />
  </System>
  <EventData>
    <Data>firefox.exe</Data>
    <Data>1.9.0.3007</Data>
    <Data>47eb31c2</Data>
    <Data>MOZCRT19.dll</Data>
    <Data>8.0.0.0</Data>
    <Data>47eb3235</Data>
    <Data>c0000005</Data>
    <Data>00007c88</Data>
    <Data>14e4</Data>
    <Data>01c8a1ee0c62013f</Data>
  </EventData>
</Event>
ibugs: file a new bug, and please try to send a "breakpad" crash report from the crash-reporting agent that watches Firefox -- the Microsoft crash reporter is of no help here.

/be
ibugs: you shouldn't file a new bug. It looks like that you hit bug 427718 which is the follow-up crasher after Firefox 3 beta 4.
Crash Signature: [@ js_GetGCThingTraceKind]
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