Closed Bug 815055 Opened 7 years ago Closed 7 years ago

crash in nsCoreUtils::IsTabDocument

Categories

(Core :: Disability Access APIs, defect, critical)

16 Branch
x86
Windows NT
defect
Not set
critical

Tracking

()

RESOLVED FIXED
mozilla20

People

(Reporter: MarcoZ, Assigned: surkov)

Details

(Keywords: crash)

Crash Data

Attachments

(1 file)

This bug was filed from the Socorro interface and is 
report bp-e9476848-1d9d-400d-81fc-ab96e2121124 .
============================================================= 

It was sent to me by a community member who I met in London on Thursday and Friday last week. She experiences this with JAWS 14. Appears to happen randomly, no definite STR.
CC'ing Boris to check that our assumptions aren't correct (i.e. no document container or no docshell tree item is valid scenario for destroying presshell).
I can't figure out what comment 1 is asking.

The crash seems to be happening because GetContainer returns null, right?  That can certainly happen for various reasons on a document in the middle of teardown, though I'm a little surprised it would happen for a document in the middle of its presshell being destroyed...
(In reply to Boris Zbarsky (:bz) from comment #2)
> I can't figure out what comment 1 is asking.

neither can I, but I believed you sort of answered it.  I think it was something along the lines of should a11y deal with the case that GetContainer() returns null, or should we investigate why that happens.

> The crash seems to be happening because GetContainer returns null, right? 

that would be my theory

> That can certainly happen for various reasons on a document in the middle of
> teardown, though I'm a little surprised it would happen for a document in
> the middle of its presshell being destroyed...

suprised enough someone should investigate why the document has no docshell at that point?
Not sure I am, since it was a bfcached document...
Yes, you answered it, I wondered whether the problem on a11y side or not.
Attached patch patchSplinter Review
Assignee: nobody → surkov.alexander
Status: NEW → ASSIGNED
Attachment #689601 - Flags: review?(trev.saunders)
Attachment #689601 - Flags: review?(trev.saunders) → review+
https://hg.mozilla.org/mozilla-central/rev/a6ae2af96c8b
Status: ASSIGNED → RESOLVED
Closed: 7 years ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla20
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