549606 - Series of crashes [@ JS_IsExceptionPending ]

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[john]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 (.NET CLR 3.5.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 (.NET CLR 3.5.30729)

I suspect that this is 2 or maybe 3 bugs, but this sequence occurred on startup, causing a series of short order crashes that even prevented me from entering "BUG"zilla on the address bar to enter bugs.  Therefore I can not exclude some common problem.

bp-1c183d3a-1cd3-4d2b-9ffc-b56f72100302	[@ JS_IsExceptionPending ]	3/2/2010	7:13 AM
bp-5dcb62e1-8cd7-4f71-9e6e-fdf902100302	[@ JS_IsExceptionPending ]	3/2/2010	7:13 AM
bp-c1e57593-0b2b-4b5b-8d8b-1fefd2100302	[@ nsContentUtils::HasMutationListeners(nsINode*, unsigned int, nsINode*)‎ ]	3/2/2010	7:10 AM
bp-70802872-c286-4aea-bd76-908232100302	[@ XPCWrappedNative::GetWrappedNativeOfJSObject(JSContext*, JSObject*, JSObject*, JSObject**, XPCWrappedNativeTearOff**)‎ ]	3/2/2010	7:01 AM

7:01
The bottom, earliest crash occurred just after selecting a message on Yahoo mail.  

Before selecting a message on Tab2/Yahoo Mail, Tab1/YahooMail showed another YahooAccount.  I had opened Tab2, using the icon on the start bar.  I closed tab1 [leaving a single tab2 open, and clicked on the new message, there.  A new tab opened [now the 2nd Tab], and before being rendered, FOX crashed.   I had not yet scrolled [i think], and the tab-in-process-of-rendition had probably existed for a second or so.  

7:10
After the crash, Fox reopened, skipping for some reason the crash/tab selection, I had 2 Tabs of the 2nd mail account [as expected, as YahooMail only knows of one open mail account...].  I closed one of the two tabs, and then opened a new tab and typed in About:Crashes [my 2nd tab, now].   I researched the crash [ever curious].

This is the URL of the info I looked at, next, and was the last tab opened before the crash:  https://wiki.mozilla.org/XPConnect_object_wrapping.  This, now the 3rd Tab.

The description on the Mozilla Wiki for the XPCWrapped Native [not updated since 2007] describes a life and construct which raises [for me, at least] warning flags about both types of uses listed there -- terms like "might, could, should etc..." intimate to me that life and death of the object is hazy.

7:13
After reading the wiki, I opened a 4th tab, and clicked on the address bar and began to type in the address bar, "bugzilla", and after the "g", FOX crashed.

7:13
It crashes again, after reconstructing the tabs, in similar fashion.  Honestly, I can't be sure how far I got towards creating a tab into which I wanted to type "bugzilla", but I think i took similar steps, possibly not starting up any of the web pages, and only using about:crashes and then an attempt to go to bugzilla.  I think I restarted but started a new session in the startup crash dialog, and only opened about:crashes, without the yahooMail page.

 

Reproducible: Sometimes




After the 4th crash, I closed Fox and quit the program, instead of restarting, in the crash box.

I closed Thunderbird [shared code, shared processes...???  I wondered.]

I restarted FOX, and was able to open about:crashes and bugzilla without problems.

--> If someone wants me to craft separate bug reports out of this, I will.   I am not sure if these crashes have a common causal thread.  If I made separate reports, I would have copied the traces to each.

If I had crashed one more time, in the sequence, I would have restarted in safe mode -- didn't get there.

Just a thought:  I wonder, is the SQLite function embedded in Fox, or is it called up as a seperate process from Fox?   I have another SQL program installed on this laptop, as some of the adjusting software I use requires it.  That SQL is always loaded on computer start up.   Is there a possibility that there are calls to that SQL? instead of the expected SQLite?   One of the things that happens when I start typing addresses is access to the Places.SQLite files to show off the history, and that's where one of the crashes occurred.

Comment 1

[Wayne Mery (:wsmwk)]

and crashes also happen when you start in safe mode?

Comment 2

[Tyler Downer [He/Him]]

Reporter, are you still seeing this issue with Firefox 3.6.13 or later in safe mode? If not, please close. These links can help you in your testing.
http://support.mozilla.com/kb/Safe+Mode
http://support.mozilla.com/kb/Managing+profiles

You can also try to reproduce in Firefox 4 Beta 8 or later, there are many improvements in the new version, http://www.mozilla.com/en-US/firefox/all-beta.html

Comment 3

[Tyler Downer [He/Him]]

No reply, INCOMPLETE. Please retest with Firefox 3.6.13 or later and a new profile (http://support.mozilla.com/kb/Managing+profiles). If you continue to see this issue with the newest firefox and a new profile, then please comment on this bug.