Xorg signal 11's spontaneously

[Dennis Jacobfeuerborn]

Dennis Jacobfeuerborn wrote:
> In the last 10 days Xorg crashed three times with a signal 11 
> spontaneously. This is the backtrace I found in the logfile:
> 
> Backtrace:
> 0: /usr/bin/Xorg(xf86SigHandler+0x87) [0x80b6d07]
> 1: [0x49a420]
> 2: /usr/lib/xorg/modules/libfb.so [0x134b81]
> 3: /usr/lib/xorg/modules/libfb.so [0x13c80c]
> 4: /usr/lib/xorg/modules/libfb.so(fbCompositeGeneral+0x855) [0x13a4e5]
> 5: /usr/lib/xorg/modules/libfb.so(fbComposite+0x1cd) [0x1433ad]
> 6: /usr/lib/xorg/modules/libxaa.so(XAAComposite+0x261) [0x81f001]
> 7: /usr/bin/Xorg [0x8156d06]
> 8: /usr/bin/Xorg [0x8153915]
> 9: /usr/bin/Xorg(CompositePicture+0x153) [0x8140a13]
> 10: /usr/bin/Xorg [0x814687c]
> 11: /usr/bin/Xorg [0x8143bd5]
> 12: /usr/bin/Xorg(Dispatch+0x19a) [0x80869ba]
> 13: /usr/bin/Xorg(main+0x485) [0x806e3e5]
> 14: /lib/libc.so.6(__libc_start_main+0xdc) [0x4cd7e4]
> 15: /usr/bin/Xorg(FontFileCompleteXLFD+0xbd) [0x806d721]
> 
> Fatal server error:
> Caught signal 11.  Server aborting
> 
> All three crashes happened when I was loading a page in Firefox and 
> after the nightly Firefox builds got switched to Cairo as their 
> rendering backend so I wonder if Cairo could somehow trigger this.
> 
> I'm running Fedora Core Rawhide with the following Xorg packages:
> xorg-x11-server-Xorg-1.0.99.901-5
> xorg-x11-drv-nv-1.1.1-2
> 
> I'm using the open source nv driver with the AccelMethod set to EXA and 
> the 'load "dri"' and 'load "glx"' lines commented out.

Just happened again and the backtrace looks similar to the one above. If I 
can do something to provide better information to debug this please tell me.


Regards,
   Dennis