Bug 27854

Summary:

crash at WebCore::AXObjectCache::notificationPostTimerFired

Product:

WebKit

Reporter:

chris fleizach <cfleizach>

Component:

Accessibility

Assignee:

chris fleizach <cfleizach>

Status:

RESOLVED FIXED

Severity:

Normal

Priority:

Version:

528+ (Nightly build)

Hardware:

OS:

OS X 10.5

Attachments:

Description	Flags
patch	darin: review+

chris fleizach

Reported 2009-07-30 13:46:20 PDT

accessibility related crash. the accessibility object is not outliving the timer notification

Attachments
patch (2.52 KB, patch) 2009-07-30 14:02 PDT, chris fleizach	darin: review+	Details Formatted Diff Diff
View All Add attachment proposed patch, testcase, etc.

chris fleizach

Comment 1 2009-07-30 14:02:12 PDT

Created attachment 33834 [details] patch

chris fleizach

Comment 2 2009-07-30 14:02:39 PDT

here the crash bt 53 com.apple.AppKit: NSAccessibilityPostNotification + 28 53 com.apple.WebCore: WebCore::AXObjectCache::notificationPostTimerFired + 94 53 com.apple.WebCore: WebCore::Timer<WebCore::AXObjectCache>::fired + 72 53 com.apple.WebCore: WebCore::ThreadTimers::fireTimers + 78 53 com.apple.WebCore: WebCore::ThreadTimers::sharedTimerFiredInternal + 106 53 com.apple.WebCore: WebCore::ThreadTimers::sharedTimerFired + 22 53 com.apple.WebCore: WebCore::timerFired + 63

chris fleizach

Comment 3 2009-07-30 14:03:14 PDT

i was not able to reproduce this crash, but the backtrace is pretty clear. accessibility objects are being released before the timer can fire and the notification can be posted

chris fleizach

Comment 4 2009-07-30 14:03:44 PDT

so there's no layout test, since i could not repro

chris fleizach

Comment 5 2009-07-30 14:51:08 PDT

http://trac.webkit.org/changeset/46604

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