234842 - scary deadlock assertions exiting mozilla after referencing nsInstallTrigger

Status: RESOLVED WORKSFORME

(Core :: XPCOM, defect)

Description

[Dan M]

When exiting Mozilla I get a scary-sounding "potential deadlock" assertion. This
happens reliably after visiting a page referencing InstallTrigger, and only
after checking out the new nsInstallTrigger.cpp, checked in to fix bug 233953.
See the test page for that bug,
http://bugzilla.mozilla.org/attachment.cgi?id=141192&action=view , for a
convenient InstallTrigger visit.

On exit I get two of these:

###!!! ASSERTION: Potential deadlock between
nsComponentManagerImplMonitor@2afdd8 and Lock@2955610:
'Error', file d:/build/moz/mozilla/xpcom/threads/nsAutoLock.cpp, line 299

while in the nsCacheEntryDescriptor dtor. And sometimes I also get this

NS_ASSERTION(gManager, "Global Thread Manager is null!");

here:

handleTimerEvent(TimerEventType * 0x02f871f8) line 440 + 34 bytes
PL_HandleEvent(PLEvent * 0x02f871f8) line 671 + 10 bytes
PL_ProcessPendingEvents(PLEventQueue * 0x00d90258) line 606 + 9 bytes
nsEventQueueImpl::ProcessPendingEvents(nsEventQueueImpl * const 0x00d901a8) line
391 + 12 bytes
NS_ShutdownXPCOM(nsIServiceManager * 0x00000000) line 750

Comment 1

[Johnny Stenback (:jst)]

FWIW, I see these assertions on exit w/o ever touching nsInstallTrigger.

Comment 2

[Dan M]

And now I'm not getting them at all, whether I visit InstallTrigger or not. Must
have been some screwy, temporary thing. Closing.