Public bug reported:
My X server on hardy crashes intermitently (around once a month, say)
when switching virtual desktops in metacity.
The Xorg.log file is attached, and includes a backtrace of the crash at
the end. When the crash happens, the graphical screen closes and I am
dumped into a text login. After login, I could see a parent X server
process with a forked child X server process marked as zombie (which is
the process that crashes presumably). Both X server processes are
unkillable, and any attempt to start another X session leads to a hard
lockup of the machine.
My graphic card is: 01:00.0 VGA compatible controller [0300]: ATI
Technologies Inc RV630 [Radeon HD 2600 Series] [1002:9589]
Here is the backtrace part:
Backtrace:
0: /usr/bin/X(xf86SigHandler+0x7e) [0x80c780e]
1: [0xb7f2e420]
2: /usr/lib/xorg/modules//libxaa.so [0xb75d35b9]
3: /usr/bin/X [0x8173013]
4: /usr/bin/X(CompositePicture+0x150) [0x815a1f0]
5: /usr/bin/X [0x81601df]
6: /usr/bin/X [0x815d085]
7: /usr/bin/X [0x81506ee]
8: /usr/bin/X(Dispatch+0x2cf) [0x808d8df]
9: /usr/bin/X(main+0x48b) [0x807471b]
10: /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe0) [0xb7caf450]
11: /usr/bin/X(FontFileCompleteXLFD+0x201) [0x8073a91]
Fatal server error:
Caught signal 11. Server aborting
(II) AIGLX: Suspending AIGLX clients for VT switch
** Affects: xorg-server (Ubuntu)
Importance: Undecided
Status: New
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X server crashes with SIGSEGV in when switching virtual destops
https://bugs.launchpad.net/bugs/333446
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