The odd thing is that it just started happening last week and the system has been very stable up until then. I am running compiz and avant-window-navigator (but not yakuake) and the system isn't under much load. It happened 3 times today so I'm going to try life without compiz for a while.
I get the same here with an nVidia GeForce 8600 GT on gutsy
2.6.22-14-generic #1 SMP Tue Dec 18 05:28:27 UTC 2007 x86_64 GNU/Linux
Backtrace: X(xf86SigHandle r+0x6d) [0x48672d] X(Dispatch+ 0x1db) [0x4514eb] X(main+ 0x45d) [0x439f4d] so.6(__ libc_start_ main+0xf4) [0x2b8276648b44] X(FontFileCompl eteXLFD+ 0x231) [0x439249]
0: /usr/bin/
1: /lib/libc.so.6 [0x2b827665c7d0]
2: /usr/bin/X [0x53389c]
3: /usr/bin/X [0x533a96]
4: /usr/bin/X [0x52fee9]
5: /usr/bin/X [0x51d6ef]
6: /usr/bin/
7: /usr/bin/
8: /lib/libc.
9: /usr/bin/
The odd thing is that it just started happening last week and the system has been very stable up until then. I am running compiz and avant-window- navigator (but not yakuake) and the system isn't under much load. It happened 3 times today so I'm going to try life without compiz for a while.