412863 - Random crashes [@ RtlpDeCommitFreeBlock]

Status: RESOLVED FIXED

(Core :: General, defect)

Description

[Steve England [:stevee]]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b3pre) Gecko/2008011604 Minefield/3.0b3pre ID:2008011604

This is going to be a fairly useless bug, since I have no range, and no steps to reproduce. But for some days now I have been experiencing random crashing for no apparent reason.

I was clicking around http://imagechan.com/img/img.php?id=4296 today (funny images, some NSFW) and Firefox crashed on three occasions. Unfortunately breakpad is rarely triggered, but I just got one that breakpad did catch.

bp-4966932e-c554-11dc-a2f6-001a4bd43ed6

Signature	RtlpDeCommitFreeBlock
UUID	4966932e-c554-11dc-a2f6-001a4bd43ed6
Time	2008-01-17 15:30:21-08:00
Build ID	2008011604
OS	Windows NT
OS Version	5.1.2600 Service Pack 2
CPU	x86
CPU Info	AuthenticAMD family 6 model 8 stepping 1
Crash Reason	EXCEPTION_ACCESS_VIOLATION
Crash Address	0x0

Frame  	Signature  	Source
0 	RtlpDeCommitFreeBlock 	
1 	RtlpCoalesceFreeBlocks 	
2 	msvcr80.dll@0x4c38 	
3 	js_GC 	
4 	JS_GC 	
5 	JS_MaybeGC 	
6 	nsCycleCollector::Collect(unsigned int) 	mozilla/xpcom/base/nsCycleCollector.cpp:2162
7 	nsJSContext::CC() 	mozilla/dom/src/base/nsJSEnvironment.cpp:3317
8 	nsJSContext::MaybeCC(int) 	mozilla/dom/src/base/nsJSEnvironment.cpp:3339
9 	nsJSContext::CCIfUserInactive() 	mozilla/dom/src/base/nsJSEnvironment.cpp:3356
10 	nsJSContext::Notify(nsITimer*) 	mozilla/dom/src/base/nsJSEnvironment.cpp:3380
11 	nsTimerImpl::Fire() 	mozilla/xpcom/threads/nsTimerImpl.cpp:403
12 	nsTimerEvent::Run() 	mozilla/xpcom/threads/nsTimerImpl.cpp:487
13 	nsThread::ProcessNextEvent(int, int*) 	mozilla/xpcom/threads/nsThread.cpp:510
14 	NS_ProcessNextEvent_P(nsIThread*, int) 	nsThreadUtils.cpp:227
15 	nsBaseAppShell::Run() 	mozilla/widget/src/xpwidgets/nsBaseAppShell.cpp:154
16 	nsAppStartup::Run() 	mozilla/toolkit/components/startup/src/nsAppStartup.cpp:181
17 	PR_GetEnv 	
18 	NS_internal_main(int, char**) 	mozilla/browser/app/nsBrowserApp.cpp:158
19 	wmain 	mozilla/toolkit/xre/nsWindowsWMain.cpp:55
20 	__tmainCRTStartup 	crtexe.c:594
21 	BaseProcessStart 	

Gavin pointed out bug 406800 - but that landed days ago (maybe around the same time as this random crashing started). Maybe the stack here is useful or something.

Comment 1

[Steve England [:stevee]]

This may be a dupe of bug 412294. Top two crash stacks are @ RtlpDeCommitFreeBlock and @ RtlpCoalesceFreeBlocks atm. It looks like this regressed between 20080107 and 20080108 and hits windows only.

Comment 2

[Steve England [:stevee]]

Checkins to module PhoenixTinderbox between 2008-01-07 03:00 and 2008-01-08 05:00 : 
http://bonsai.mozilla.org/cvsquery.cgi?treeid=default&module=PhoenixTinderbox&branch=HEAD&branchtype=match&dir=&file=&filetype=match&who=&whotype=match&sortby=Date&hours=2&date=explicit&mindate=2008-01-07+03&maxdate=2008-01-08+05&cvsroot=%252Fcvsroot

Comment 3

[Steve England [:stevee]]

Above link doesn't work. Here's one that does:

http://bonsai.mozilla.org/cvsquery.cgi?treeid=default&module=PhoenixTinderbox&branch=HEAD&branchtype=match&dir=&file=&filetype=match&who=&whotype=match&sortby=Date&hours=2&date=explicit&mindate=2008-01-07+03&maxdate=2008-01-08+05&cvsroot=%2Fcvsroot

Comment 4

[aja+bugzilla]

FWIW, I've seen no reoccurances over last few days, since checkin for bug 411874.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b3pre) Gecko/2008012204 Minefield/3.0b3pre ID:2008012204

Comment 5

[Steve England [:stevee]]

I agree. I have also not seen this crash since the landing of bug 411874. The breakpad plot shows the same trends (only a few crashers now @ RtlpDeCommitFreeBlock)

http://crash-stats.mozilla.com/report/list?range_unit=weeks&version=Firefox%253A3.0b3pre&range_value=2&signature=RtlpDeCommitFreeBlock

Resolving FIXED