--- stack trace ---
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7d67651 in raise () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x08057556 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  0xb3ae2578 in ?? ()
#5  0xb38585b4 in ?? ()
#6  0xb3c2fa60 in ?? ()
#7  0xb517de64 in ?? ()
#8  0xb3c35718 in ?? ()
#9  0x00000000 in ?? ()
--- thread stack trace ---
.