Comment #6 on issue 4629 by [EMAIL PROTECTED]: Chrome: Crash Report - Stack Signature: WebContents::ShowWidget(int,gfx::Rect const &)-92C9CD http://code.google.com/p/chromium/issues/detail?id=4629
A couple of crashes didn't show a11y on the stack, but many other crashes do. I believe the a11y code is triggering us to be reentrant when we aren't set up to be reentrant. Specifically when we show a window (widget_view->ShowWindow(SW_SHOW)) it appears that the a11y code gets called back. This can trigger us to block, so that by the time control returns back to showwindow the widget_host has been destroyed and when we invoke Init() on it we get the crash. The trace at http://0.queryserver.queryserver.crash.fp.borg:25571/reportdetail? reportid=bfa9248d6adcaa09&product=Chrome&version=0.4.154.25&date=&signature=WebContents::ShowWidge t(int,gfx::Rect+const+%26)-934F19 shows the following interesting bits. This is in reverse order (top of the stack is last): chrome_68a50000!WebContents::ShowWidget+0x114 <- first call to ShowWidget user32!NtUserShowWindow+0xc ntdll!KiUserCallbackDispatcher+0x2e user32!__ClientCallWinEventProc+0x2a tiptsf!CARET::ProcessCaretEvents+0x8c tiptsf!CARET::_ProcessCaretEvents+0x25c tiptsf!CARET::UpdateEditFieldState+0x28 tiptsf!CARET::UpdateMSAAEditFieldState+0x78 oleacc!AccWrap_LocationFix::accLocation+0x2b <- The ShowWindow call calls us back. oleacc!AccWrap_Base::accLocation+0x2b chrome_68a50000!BrowserAccessibility::accLocation+0x74 ... chrome_68a50000!WebContents::ShowWidget+0x118 <- another call to ShowWidget Why are so many people hitting this and not just those that have turned on a11y? I suspect the tablet drivers use a11y under the covers for tracking state. -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this issue. You may adjust your issue notification preferences at: http://code.google.com/hosting/settings --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Chromium-bugs" group. To post to this group, send email to chromium-bugs@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/chromium-bugs?hl=en -~----------~----~----~----~------~----~------~--~---
