[EDGY] firefox crashed [@XQueryBestCursor] [@XAddExtension] [@XextAddDisplay] with libflash-mozplugin.so at #9

[MilanD]

... firefox crash

frequent crashes in various html pages (also pages without flash)

[David Farning (dfarning)]

Thanks for your bug report. Could you please install firefox-dbg and try to obtain a backtrace (or crash report) by following the instructions on
       https://wiki.ubuntu.com/DebuggingFirefox
This will greatly aid us in tracking down your problem.

Thanks
David

[MilanD (milanko)]

running firefox -g I have following message

...
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1221106000 (LWP 4815)]
0xb78f67a7 in XQueryExtension () from /usr/lib/libX11.so.6

------
because this is maybe in fact X org problème:
 my graphic card:
 Radeon Mobility M6 LY, on 82830 830 Chipset AGP Bridge

xorg.conf:

...
Section "Device"
        Identifier "ATI Technologies, Inc. Radeon Mobility M6 LY [Radeon Mobility 9000]"
        Driver "ati"
        BusID "PCI:1:0:0"
EndSection
..

[David Farning (dfarning)]

I am not seeing a complete stacktrace.

Thanks
David

[John Vivirito (gnomefreak)]

Is this still an issue? If so can you please run firefox in safe mode from terminal by typing firefox -safe-mode and see if it crashes, if it doesnt crash please disable extentions themes one by one until you find the one that is causing this. Can you please attach the webpage about:plugins in firefox and list extensions and themes you have installed.

[Hilario J. Montoliu (hjmf) (hmontoliu)]

Retrace done on the original crash report.

Extract from retraced stacktrace:
...
#3 <signal handler called>
#4 XQueryBestCursor (dpy=0x0, drawable=3075820509, width=3217308592, height=3217308596,
#5 XAddExtension (dpy=0x0) at ../../src/InitExt.c:90
#6 XextAddDisplay (extinfo=0xb7555720, dpy=0x0, ext_name=0xb7554bdd "MIT-SHM", hooks=0xb7555520, nevents=1,
#7 find_display (dpy=0x0) at ../../src/XShm.c:82
#8 XShmDetach (dpy=0x0, shminfo=0x849c11c) at ../../src/XShm.c:254
#9 NPP_Destroy () from /usr/lib/mozilla/plugins/libflash-mozplugin.so
#10 Private_Destroy () from /usr/lib/mozilla/plugins/libflash-mozplugin.so
#11 ns4xPluginInstance::Stop (this=0x95fd5b0) at ns4xPluginInstance.cpp:931
#12 StopPluginInstance (aShell=0x924fff0, aContent=0x9550d40) at nsPresShell.cpp:6633
...

Tagging as mt-needtestcase, mt-waitdup for further processing

[Hilario J. Montoliu (hjmf) (hmontoliu)]

Retraced Thread Stacktrace

[Hilario J. Montoliu (hjmf) (hmontoliu)]

No launchpad dup found.
No upstream reference found.

[Hilario J. Montoliu (hjmf) (hmontoliu)]

We have not received any duplicates for some time. Thus, this crash was likely due to some unique plugin extension combination or has been fixed in the meantime. Please, reopen it at any time if you have more related info.

Thanks for your contribution. Don't hesitate to submit new crashes,

H. Montoliu