458125 - Access violation in xul!NS_CycleCollectorForget during autocomplete

Status: RESOLVED INCOMPLETE

(Firefox :: Address Bar, defect)

Description

[Matthew Kidd]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3

Part way through autocompletion, Firefox appeared to hang and then crashed into WinDbg. See attached screenshot (it's a mess because Firefox stopped handling repaint requests), but one can see exactly how many characters I had typed and that the options had been reduced to a single autocomplete entry.

See second attachment for full results of '!analyze -v' and list of loaded modules. Access violation appeared to occur at xul!NS_CycleCollectorForget_P+35fce, a RET instruction. This suggests a corrupted stack to me.

I had 7 windows and about 40 tabs open, so it is unlikely that I will ever be able to reproduce this.

Reproducible: Didn't try

Comment 1

[Matthew Kidd]

Attachment: Partial screenshot showing autocomplete dialog at crash

Comment 2

[Matthew Kidd]

Attachment: WinDbg stack and module list

Comment 3

[Peter Van der Beken [:peterv]]

As mentioned in comment 0, this looks like a corrupted stack and most likely not related to cycle collector.

Comment 4

[timeless]

http://developer.mozilla.org/en/docs/How_to_get_a_stacktrace_with_WinDbg

Comment 5

[Marco Bonardo [:mak]]

this report doesn't have useful information, and 3.0 reached EOL.