444043 - Occasional hangs (PR_DestroyLock?)

Status: RESOLVED INCOMPLETE

(Core :: JavaScript Engine, defect)

Description

[Wim Lewis]

User-Agent:       Mozilla/5.0 (Macintosh; Tapir; PPC Mac OS X 10.4; en-US; rv:1.9) Gecko/2008051202 Firefox/3.0
Build Identifier: Mozilla/5.0 (Macintosh; Tapir; PPC Mac OS X 10.4; en-US; rv:1.9) Gecko/2008051202 Firefox/3.0

Once in a while FF3 will hang, using a lot of cpu. It's not reproducible for me, but seems to happen when I've opened/closed numerous tabs recently. I'm attaching a stack sample which shows that it's spinning inside pthread_mutex_destroy().

In this case I had a handful of longlived tabs open, had recently opened half-a-dozen new ones by cmd-clicking on links in a Mailman archive page (to open a number of messages); I'd then closed the Mailman archive tab and was working through the tabs opened from it, closing them as I read them. About halfway through FF hung.

Sorry I can't come up with a repro case for this. I will attach more samples if/as it happens again.



Reproducible: Couldn't Reproduce




My installed addons are AdblockPlus 0.7.5.5, Greasemonkey 0.8.20080609.0, JavaScript Debugger 0.9.87.4, Platypus 0.80. I don't use any of them heavily, and I doubt any of them were doing much on a Mailman archive page. This instance of FF had probably been running for about a week when it crashed (mostly on a sleeping machine, though).

Comment 1

[Wim Lewis]

Attachment: Stack trace of hung firefox-bin process

Comment 2

[timeless]

it doesn't look like you have private symbols, which means this stack isn't really very helpful.

Comment 3

[Wayne Mery (:wsmwk)]

(In reply to comment #2)
> it doesn't look like you have private symbols, which means this stack isn't
> really very helpful.

If you can still reproduce, please provide a new stack