351420 - Firefox periodically hangs on OS X with Google Toolbar installed

Status: RESOLVED DUPLICATE of bug 353962

(Firefox :: General, defect)

Description

[Michael Twomey]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.0.4) Gecko/20060613 Camino/1.0.2
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-GB; rv:1.8.1b2) Gecko/20060821 Firefox/2.0b2

While using Firefox 2 beta 2 to develop some javascript heavy pages I'm encountering periodic hangs (they also appear to happen during normal browsing as well). The spinning beachball comes up and I have to force kill firefox. I haven't been able to consistently reproduce the problem except by browsing around until it hangs.

Reproducible: Sometimes

Steps to Reproduce:
1. Just browse around for a while and the browser will hang. Can't reproduce on demand yet.



Attaching gdb to a hung firefox gives be this:

(gdb) bt
#0  0x900251a7 in semaphore_wait_signal_trap ()
#1  0x90028d24 in pthread_cond_wait ()
#2  0x00fb88b1 in PR_WaitCondVar ()
#3  0x00f0d5b8 in js_GC ()
#4  0x00ee25a6 in JS_GC ()
#5  0x0051c30c in nsJSContext::Notify ()
#6  0x0184a69e in nsTimerImpl::Fire ()
#7  0x0184ae7f in handleTimerEvent ()
#8  0x01847575 in PL_HandleEvent ()
#9  0x0184782e in PL_ProcessPendingEvents ()
#10 0x90823379 in CFRunLoopRunSpecific ()
#11 0x90822eb5 in CFRunLoopRunInMode ()
#12 0x92f02b90 in RunCurrentEventLoopInMode ()
#13 0x92f02297 in ReceiveNextEventCommon ()
#14 0x92f4a929 in _AcquireNextEvent ()
#15 0x92f4a774 in RunApplicationEventLoop ()
#16 0x0023e99f in nsAppShell::Run ()
#17 0x002d69fe in nsAppStartup::Run ()
#18 0x00005899 in XRE_main ()
#19 0x000025f8 in main ()

Machine is a Macbook Pro 17" with 2GB of memory and mac os x 10.4.7.

I have chatzilla, dom inspector, firebug, google toolbar and the javascript debugger plugins installed.

I am usnig the default theme.

Comment 1

[Adam Guthrie]

Could you also get a stack from the hang using Sampler.app? (Please attach this as it will probably be rather large.)

Comment 2

[Michael Twomey]

Attachment: A few seconds of sampler

I had to wait all morning for firefox to hang. I attached sampler to the process and let it capture a few seconds of events.

Comment 3

[LonelyBob]

I could not reproduce this hang on OSX 10.4.7 Intel.
Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1b2) Gecko/20060911 BonEcho/2.0b2

I opened several tabs (~9) with different sites in each (including Gmail, Google Calendar, Excite). Browsed to other sites in new tabs but did not see any hang. Left Firefox 2.0Beta2 running over night with Gmail/Calendar logged in (periodic requests for updates occur on those sites) and then checked Browser again this morning. Checked each tab and Reloaded All Tabs but did not see any hang.

Do you know of a more descriptive/specific way to reproducing this? Maybe the hang had something to do with one of the extensions you have installed? (Try disabling non default extensions and see if the hang still occurs?)
When I tested I had Chatzilla, DOM Inspector, and Talkback extensions installed and enabled. Also refspoof was installed but was disabled.

Comment 4

[Adam Guthrie]

Michael, could you please sample it again and "generate a report" and then copy the report out of that window into a plain-text document? I don't have a Mac, so I'm unable to view the attachment as-is.

Comment 5

[Michael Twomey]

Attachment: Sampler report

I've generated a sampler report from the previous sampler output.

Comment 6

[Adam Guthrie]

It looks like it may be hanging when trying to play some sort of sound, but I could be wrong. Do any of those extensions try and play sounds? Also, can you reproduce this with those extensions disabled?

Comment 7

[Michael Twomey]

I'm working my way through my extensions, disabling them one by one. I've not seen any hangs when I had them all disabled, so hopefully I can track down the problem extension.

Comment 8

[Michael Twomey]

I'm pretty sure I've traced the problem to the Google Toolbar for Firefox, version 2.1.20060807. With this enabled I can see the hangs, with it disabled I don't. I've been running with my full set of add ons minus the google toolbar for a day or two now and I haven't seen any hangs.

Comment 9

[Ken Snider]

(In reply to comment #8)
> I'm pretty sure I've traced the problem to the Google Toolbar for Firefox,
> version 2.1.20060807. With this enabled I can see the hangs, with it disabled I
> don't. I've been running with my full set of add ons minus the google toolbar
> for a day or two now and I haven't seen any hangs.
> 

I'm going to chime in here and indicate I am seeing the same problem, with the same version of the toolbar installed, under WinXP.

Browsing even simple pages will occasionally hang with an hourglass that won't go away - consuming no unusual CPU resources, and no apparent memory allocation taking place.

I've noticed this seems to happen right at the very end of rendering (The progress bar is full).

Comment 10

[Todd Bradley]

(In reply to comment #0)
20060821 Firefox/2.0b2
> 
> While using Firefox 2 beta 2 to develop some javascript heavy pages I'm
> encountering periodic hangs (they also appear to happen during normal browsing
> as well). The spinning beachball comes up and I have to force kill firefox. I
> haven't been able to consistently reproduce the problem except by browsing
> around until it hangs.

FWIW, this is happening to me all the time on my MacBook Pro.  I also run the Google Toolbar.  I just uninstalled it and will run a while to see if this problem clears up.

Comment 11

[Leslie Grimm]

I'm having the same problem with Mac OS X version 10.4.8, and a google toolbar installed.  I have a macbook pro dual intel core laptop, and the "hang" happens frequently but I haven't found a replicable procedure.  I'm using firefox 2.0. I didn't have the problem with the previous version of firefox.

Comment 12

[Gérard Talbot]

Hello all,

After carefully reading bug 375727, bug 371863, bug 351420 and bug 381212, I am resolving these as DUPLICATE bugs of bug 353962. From what I read in all 4 mentioned bug reports, their summary, description and external signs 
- hangs, 
- "frozen application", 
- spinning ball cursor, 
- weak stability, 
- revision version of Firefox involved clearly suggesting a regression, 
- impromptus/random occurences of hung application, 
- Machine Model: MacBookPro, 
- 2 have google search toolbar, 
- OS being OS X 10.4.x
all concur and convincingly lead me to resolve these as a DUPLICATE of bug 353962. If you strongly believe that this is a serious mistake, then you may REOPEN the bug by providing reasons, explanations, details as to why your bug should not have been resolved as a duplicate of bug 353962.

Thank you, Gérard