[apport] epiphany crashed with SIGSEGV in GraphicDevice32::drawLine()

StacktraceTop:__kernel_vsyscall ()
raise () from /lib/tls/i686/cmov/libc.so.6
nsProfileLock::FatalSignalHandler (signo=11) at nsProfileLock.cpp:206

?? ()

The crash happens to libflash

Debug backtrace for the crash:

Core was generated by `epiphany'.
Program terminated with signal 11, Segmentation fault.
#0 0xffffe410 in __kernel_vsyscall ()
(gdb) thread apply all bt full

Thread 7 (process 6348):
#0 0xffffe410 in __kernel_vsyscall ()
No symbol table info available.
#1 0xb7e0e823 in poll () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#2 0xb7eacc29 in PR_Poll (pds=0x844be18, npds=1, timeout=4294967295) at ptio.c:3877
No locals.
#3 0xb59946db in nsSocketTransportService::Poll (this=0x844b930, interval=0xb4b41368)
    at nsSocketTransportService2.cpp:361
        pollList = (PRPollDesc *) 0x844be18
        pollCount = 1
        pollTimeout = 4294967295
        ts = 2751039394
        rv = <value optimized out>
        passedInterval = <value optimized out>
#4 0xb5994f15 in nsSocketTransportService::Run (this=0x844b930) at nsSocketTransportService2.cpp:577
        pollInterval = 1
        n = 1
        i = -12
        active = 1
#5 0xb6f211cb in nsThread::Main (arg=0x844c120) at nsThread.cpp:118
No locals.
#6 0xb7eb0e9d in _pt_root (arg=0x844c1a0) at ptthread.c:220
No locals.
#7 0xb704031b in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
No symbol table info available.
#8 0xb7e1850e in clone () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.

Thread 6 (process 6349):
#0 0xffffe410 in __kernel_vsyscall ()
No symbol table info available.
#1 0xb704484c in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
No symbol table info available.
#2 0xb7e24d94 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#3 0xb7eaa093 in pt_TimedWait (cv=0x830aaf4, ml=0x830c7c8, timeout=<value optimized out>) at ptsynch.c:280
        rv = 52685
        now = {tv_sec = 1175277111, tv_usec = 614810}
        tmo = {tv_sec = 1175277113, tv_nsec = 603810000}
        ticks = 1000
#4 0xb7eaaed1 in PR_WaitCondVar (cvar=0x830aaf0, timeout=1989) at ptsynch.c:407
        rv = <value optimized out>
        thred = (PRThread *) 0x877a5e0
#5 0xb6f234c6 in TimerThread::Run (this=0x830c708) at TimerThread.cpp:318
---Type <return> to continue, or q <return> to quit---
        waitFor = <value optimized out>
#6 0xb6f211cb in nsThread::Main (arg=0x87ec290) at nsThread.cpp:118
No locals.
#7 0xb7eb0e9d in _pt_root (arg=0x877a5e0) at ptthread.c:220
No locals.
#8 0xb704031b in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
No symbol table info available.
#9 0xb7e1850e in clone () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.

Thread 5 (process 6365):
#0 0xffffe410 in __kernel_vsyscall ()
No symbol table info available.
#1 0xb704484c in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
No symbol table info available.
#2 0xb7e24d94 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#3 0xb7eaa093 in pt_TimedWait (cv=0x86680ac, ml=0x894bc90, timeout=<value optimized out>) at ptsynch.c:280
        rv = 7875
        now = {tv_sec = 1175277112, tv_usec = 402819}
        tmo = {tv_sec = 1175277112, tv_nsec = 65281...