Program received signal SIGABRT, Aborted.
0xffffe410 in __kernel_vsyscall ()
(gdb) bt full
#0  0xffffe410 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb7daf875 in raise () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#2  0xb7db1201 in abort () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#3  0xb7da8b6e in __assert_fail () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#4  0xa77354ba in bm_fake_NotifyContendedLockTake ()
   from /usr/lib/dri/i965_dri.so
No symbol table info available.
#5  0xa77395b6 in LOCK_HARDWARE () from /usr/lib/dri/i965_dri.so
No symbol table info available.
#6  0xa77523c6 in ?? () from /usr/lib/dri/i965_dri.so
No symbol table info available.
#7  0x083b9b40 in ?? ()
No symbol table info available.
#8  0x00000000 in ?? ()
No symbol table info available.