#0  0xb7f3d410 in __kernel_vsyscall ()
#1  0xb7f1dd30 in raise () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb6eaa0b6 in nsProfileLock::FatalSignalHandler (signo=11) at nsProfileLock.cpp:206
	unblock_sigs = {__val = {1024, 0 <repeats 31 times>}}
	oldact = <value optimized out>
#3  <signal handler called>
#4  0xb692f38b in ?? () from /usr/lib/libfontconfig.so.1