#0  0xffffe410 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb7d2a875 in raise () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#2  0xb7d2c201 in abort () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#3  0xb7d23b6e in __assert_fail () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#4  0xa76bb4ba in bm_fake_NotifyContendedLockTake ()
   from /usr/lib/dri/i965_dri.so
No symbol table info available.
#5  0xa76bf5b6 in LOCK_HARDWARE () from /usr/lib/dri/i965_dri.so
No symbol table info available.
#6  0xa76d83c6 in ?? () from /usr/lib/dri/i965_dri.so
No symbol table info available.
#7  0x0847a058 in ?? ()
No symbol table info available.
#8  0x00000000 in ?? ()
No symbol table info available.
The program is running.  Quit anyway (and detach it)? (y or n) Detaching from program: /usr/bin/Xorg, process 7309