(gdb) cont
Continuing.
[New Thread 0x7f89cffff700 (LWP 17232)]

Program received signal SIGSEGV, Segmentation fault.
0x00000031cf6dcb21 in webkitAccessibleRefStateSet(_AtkObject*) () from /lib64/libwebkit2gtk-4.0.so.37
(gdb) thread apply all bt

Thread 16 (Thread 0x7f89cffff700 (LWP 17232)):
#0  0x00000031a7cfa939 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00000031aa88e417 in g_cond_wait_until () at /lib64/libglib-2.0.so.0
#2  0x00000031aa81e919 in g_async_queue_pop_intern_unlocked () at /lib64/libglib-2.0.so.0
#3  0x00000031aa81ef3b in g_async_queue_timeout_pop () at /lib64/libglib-2.0.so.0
#4  0x00000031aa870e2c in g_thread_pool_thread_proxy () at /lib64/libglib-2.0.so.0
#5  0x00000031aa8703d5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#6  0x00000031a880752a in start_thread (arg=0x7f89cffff700) at pthread_create.c:310
#7  0x00000031a7d0022d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f8a49bf2700 (LWP 15995)):
#0  0x00000031a7cf4c8d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00000031aa849b34 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00000031aa849ec2 in g_main_loop_run () at /lib64/libglib-2.0.so.0
#3  0x00000031ae8dae66 in gdbus_shared_thread_func () at /lib64/libgio-2.0.so.0
#4  0x00000031aa8703d5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#5  0x00000031a880752a in start_thread (arg=0x7f8a49bf2700) at pthread_create.c:310
#6  0x00000031a7d0022d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f8a48b85700 (LWP 15996)):
#0  0x00000031a7cf4c8d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00000031aa849b34 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00000031aa849c4c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f8a48b8d24d in dconf_gdbus_worker_thread () at /usr/lib64/gio/modules/libdconfsettings.so
#4  0x00000031aa8703d5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#5  0x00000031a880752a in start_thread (arg=0x7f8a48b85700) at pthread_create.c:310
#6  0x00000031a7d0022d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f8a42ead700 (LWP 15997)):
#0  0x00000031a7cc41bd in nanosleep () at ../sysdeps/unix/syscall-template.S:81
#1  0x00000031a7cc4054 in __sleep (seconds=0) at ../sysdeps/unix/sysv/linux/sleep.c:138
#2  0x00000031b167fe10 in WTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libjavascriptcoregtk-4.0.so.18
#3  0x00000031b167fea9 in  () at /lib64/libjavascriptcoregtk-4.0.so.18
#4  0x00000031a880752a in start_thread (arg=0x7f8a42ead700) at pthread_create.c:310
#5  0x00000031a7d0022d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f8a426ac700 (LWP 15998)):
#0  0x00000031a7cf4c8d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00000031aa849b34 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00000031aa849ec2 in g_main_loop_run () at /lib64/libglib-2.0.so.0
#3  0x00000031b16b3c62 in WTF::wtfThreadEntryPoint(void*) () at /lib64/libjavascriptcoregtk-4.0.so.18
#4  0x00000031a880752a in start_thread (arg=0x7f8a426ac700) at pthread_create.c:310
#5  0x00000031a7d0022d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f8a41eab700 (LWP 15999)):
#0  0x00000031a7cf4c8d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00000031aa849b34 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00000031aa849ec2 in g_main_loop_run () at /lib64/libglib-2.0.so.0
#3  0x00000031b16b3c62 in WTF::wtfThreadEntryPoint(void*) () at /lib64/libjavascriptcoregtk-4.0.so.18
#4  0x00000031a880752a in start_thread (arg=0x7f8a41eab700) at pthread_create.c:310
#5  0x00000031a7d0022d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f8a40ea9700 (LWP 16001)):
#0  0x00000031a7cf4c8d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00000031aa849b34 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00000031aa849ec2 in g_main_loop_run () at /lib64/libglib-2.0.so.0
#3  0x00000031b16b3c62 in WTF::wtfThreadEntryPoint(void*) () at /lib64/libjavascriptcoregtk-4.0.so.18
#4  0x00000031a880752a in start_thread (arg=0x7f8a40ea9700) at pthread_create.c:310
#5  0x00000031a7d0022d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f89fbffd700 (LWP 16002)):
#0  0x00000031a880c939 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00000031b1378119 in JSC::BlockAllocator::waitForDuration(std::chrono::duration<long, std::ratio<1l, 1000l> >) () at /lib64/libjavascriptcoregtk-4.0.so.18
#2  0x00000031b13781e2 in JSC::BlockAllocator::blockFreeingThreadMain() () at /lib64/libjavascriptcoregtk-4.0.so.18
#3  0x00000031b16b3c62 in WTF::wtfThreadEntryPoint(void*) () at /lib64/libjavascriptcoregtk-4.0.so.18
#4  0x00000031a880752a in start_thread (arg=0x7f89fbffd700) at pthread_create.c:310
#5  0x00000031a7d0022d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f89fb7fc700 (LWP 16003)):
#0  0x00000031a880c590 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
---Type <return> to continue, or q <return> to quit---
#1  0x00000031ab0b6d5c in std::condition_variable::wait(std::unique_lock<std::mutex>&) (__mutex=<optimized out>, __cond=<optimized out>)
    at /usr/src/debug/gcc-4.9.2-20150212/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/x86_64-redhat-linux/bits/gthr-default.h:864
#2  0x00000031ab0b6d5c in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized out>, __lock=...) at ../../../../../libstdc++-v3/src/c++11/condition_variable.cc:52
#3  0x00000031b138738b in JSC::GCThread::waitForNextPhase() () at /lib64/libjavascriptcoregtk-4.0.so.18
#4  0x00000031b1387478 in JSC::GCThread::gcThreadMain() () at /lib64/libjavascriptcoregtk-4.0.so.18
#5  0x00000031b16b3c62 in WTF::wtfThreadEntryPoint(void*) () at /lib64/libjavascriptcoregtk-4.0.so.18
#6  0x00000031a880752a in start_thread (arg=0x7f89fb7fc700) at pthread_create.c:310
#7  0x00000031a7d0022d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f89faffb700 (LWP 16004)):
#0  0x00000031a880c590 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000031ab0b6d5c in std::condition_variable::wait(std::unique_lock<std::mutex>&) (__mutex=<optimized out>, __cond=<optimized out>)
    at /usr/src/debug/gcc-4.9.2-20150212/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/x86_64-redhat-linux/bits/gthr-default.h:864
#2  0x00000031ab0b6d5c in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized out>, __lock=...) at ../../../../../libstdc++-v3/src/c++11/condition_variable.cc:52
#3  0x00000031b138738b in JSC::GCThread::waitForNextPhase() () at /lib64/libjavascriptcoregtk-4.0.so.18
#4  0x00000031b1387478 in JSC::GCThread::gcThreadMain() () at /lib64/libjavascriptcoregtk-4.0.so.18
#5  0x00000031b16b3c62 in WTF::wtfThreadEntryPoint(void*) () at /lib64/libjavascriptcoregtk-4.0.so.18
#6  0x00000031a880752a in start_thread (arg=0x7f89faffb700) at pthread_create.c:310
#7  0x00000031a7d0022d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f89fa7fa700 (LWP 16005)):
#0  0x00000031a880c590 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000031ab0b6d5c in std::condition_variable::wait(std::unique_lock<std::mutex>&) (__mutex=<optimized out>, __cond=<optimized out>)
    at /usr/src/debug/gcc-4.9.2-20150212/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/x86_64-redhat-linux/bits/gthr-default.h:864
#2  0x00000031ab0b6d5c in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized out>, __lock=...) at ../../../../../libstdc++-v3/src/c++11/condition_variable.cc:52
#3  0x00000031b138738b in JSC::GCThread::waitForNextPhase() () at /lib64/libjavascriptcoregtk-4.0.so.18
#4  0x00000031b1387478 in JSC::GCThread::gcThreadMain() () at /lib64/libjavascriptcoregtk-4.0.so.18
#5  0x00000031b16b3c62 in WTF::wtfThreadEntryPoint(void*) () at /lib64/libjavascriptcoregtk-4.0.so.18
#6  0x00000031a880752a in start_thread (arg=0x7f89fa7fa700) at pthread_create.c:310
#7  0x00000031a7d0022d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f89f9ff9700 (LWP 16006)):
#0  0x00000031a880c590 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000031ab0b6d5c in std::condition_variable::wait(std::unique_lock<std::mutex>&) (__mutex=<optimized out>, __cond=<optimized out>)
    at /usr/src/debug/gcc-4.9.2-20150212/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/x86_64-redhat-linux/bits/gthr-default.h:864
#2  0x00000031ab0b6d5c in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized out>, __lock=...) at ../../../../../libstdc++-v3/src/c++11/condition_variable.cc:52
#3  0x00000031b138738b in JSC::GCThread::waitForNextPhase() () at /lib64/libjavascriptcoregtk-4.0.so.18
#4  0x00000031b1387478 in JSC::GCThread::gcThreadMain() () at /lib64/libjavascriptcoregtk-4.0.so.18
#5  0x00000031b16b3c62 in WTF::wtfThreadEntryPoint(void*) () at /lib64/libjavascriptcoregtk-4.0.so.18
#6  0x00000031a880752a in start_thread (arg=0x7f89f9ff9700) at pthread_create.c:310
#7  0x00000031a7d0022d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f89f97f8700 (LWP 16007)):
#0  0x00000031a880c590 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000031ab0b6d5c in std::condition_variable::wait(std::unique_lock<std::mutex>&) (__mutex=<optimized out>, __cond=<optimized out>)
    at /usr/src/debug/gcc-4.9.2-20150212/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/x86_64-redhat-linux/bits/gthr-default.h:864
#2  0x00000031ab0b6d5c in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized out>, __lock=...) at ../../../../../libstdc++-v3/src/c++11/condition_variable.cc:52
#3  0x00000031b138738b in JSC::GCThread::waitForNextPhase() () at /lib64/libjavascriptcoregtk-4.0.so.18
#4  0x00000031b1387478 in JSC::GCThread::gcThreadMain() () at /lib64/libjavascriptcoregtk-4.0.so.18
#5  0x00000031b16b3c62 in WTF::wtfThreadEntryPoint(void*) () at /lib64/libjavascriptcoregtk-4.0.so.18
#6  0x00000031a880752a in start_thread (arg=0x7f89f97f8700) at pthread_create.c:310
#7  0x00000031a7d0022d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f89f8ff7700 (LWP 16008)):
#0  0x00000031a880c590 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000031ab0b6d5c in std::condition_variable::wait(std::unique_lock<std::mutex>&) (__mutex=<optimized out>, __cond=<optimized out>)
    at /usr/src/debug/gcc-4.9.2-20150212/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/x86_64-redhat-linux/bits/gthr-default.h:864
#2  0x00000031ab0b6d5c in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized out>, __lock=...) at ../../../../../libstdc++-v3/src/c++11/condition_variable.cc:52
#3  0x00000031b138738b in JSC::GCThread::waitForNextPhase() () at /lib64/libjavascriptcoregtk-4.0.so.18
#4  0x00000031b1387478 in JSC::GCThread::gcThreadMain() () at /lib64/libjavascriptcoregtk-4.0.so.18
#5  0x00000031b16b3c62 in WTF::wtfThreadEntryPoint(void*) () at /lib64/libjavascriptcoregtk-4.0.so.18
#6  0x00000031a880752a in start_thread (arg=0x7f89f8ff7700) at pthread_create.c:310
#7  0x00000031a7d0022d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f89cf7fe700 (LWP 16011)):
#0  0x00000031a7cf4c8d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00000031aa849b34 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00000031aa849ec2 in g_main_loop_run () at /lib64/libglib-2.0.so.0
#3  0x00000031b16b3c62 in WTF::wtfThreadEntryPoint(void*) () at /lib64/libjavascriptcoregtk-4.0.so.18
#4  0x00000031a880752a in start_thread (arg=0x7f89cf7fe700) at pthread_create.c:310
#5  0x00000031a7d0022d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
---Type <return> to continue, or q <return> to quit---

Thread 1 (Thread 0x7f8a508a9a00 (LWP 15993)):
#0  0x00000031cf6dcb21 in webkitAccessibleRefStateSet(_AtkObject*) () at /lib64/libwebkit2gtk-4.0.so.37
#1  0x00000031bf00ffc9 in children_changed_event_listener () at /lib64/libatk-bridge-2.0.so.0
#2  0x00000031ab8215ab in signal_emit_unlocked_R () at /lib64/libgobject-2.0.so.0
#3  0x00000031ab82a121 in g_signal_emit_valist () at /lib64/libgobject-2.0.so.0
#4  0x00000031ab82a89a in g_signal_emit_by_name () at /lib64/libgobject-2.0.so.0
#5  0x00000031ceb1ec15 in WebCore::AXObjectCache::getOrCreate(WebCore::Widget*) () at /lib64/libwebkit2gtk-4.0.so.37
#6  0x00000031ceb360dc in WebCore::AccessibilityObject::isARIAHidden() const () at /lib64/libwebkit2gtk-4.0.so.37
#7  0x00000031ceb36131 in WebCore::AccessibilityObject::defaultObjectInclusion() const () at /lib64/libwebkit2gtk-4.0.so.37
#8  0x00000031ceb3609d in WebCore::AccessibilityObject::accessibilityIsIgnoredByDefault() const () at /lib64/libwebkit2gtk-4.0.so.37
#9  0x00000031cf6c7628 in WebCore::AXObjectCache::attachWrapper(WebCore::AccessibilityObject*) () at /lib64/libwebkit2gtk-4.0.so.37
#10 0x00000031ceb1f73d in WebCore::AXObjectCache::getOrCreate(WebCore::RenderObject*) () at /lib64/libwebkit2gtk-4.0.so.37
#11 0x00000031ced25a60 in WebCore::Document::implicitClose() () at /lib64/libwebkit2gtk-4.0.so.37
#12 0x00000031cf04cd98 in WebCore::FrameLoader::checkCompleted() () at /lib64/libwebkit2gtk-4.0.so.37
#13 0x00000031cf0badcd in WebCore::CachedResourceLoader::loadDone(WebCore::CachedResource*, bool) () at /lib64/libwebkit2gtk-4.0.so.37
#14 0x00000031cf07801a in WebCore::SubresourceLoader::notifyDone() () at /lib64/libwebkit2gtk-4.0.so.37
#15 0x00000031cf078f81 in WebCore::SubresourceLoader::didFail(WebCore::ResourceError const&) () at /lib64/libwebkit2gtk-4.0.so.37
#16 0x00000031ceaa9e59 in void IPC::handleMessage<Messages::WebResourceLoader::DidFailResourceLoad, WebKit::WebResourceLoader, void (WebKit::WebResourceLoader::*)(WebCore::ResourceError const&)>(IPC::MessageDecoder&, WebKit::WebResourceLoader*, void (WebKit::WebResourceLoader::*)(WebCore::ResourceError const&)) () at /lib64/libwebkit2gtk-4.0.so.37
#17 0x00000031ceaa9bde in WebKit::WebResourceLoader::didReceiveWebResourceLoaderMessage(IPC::Connection*, IPC::MessageDecoder&) () at /lib64/libwebkit2gtk-4.0.so.37
#18 0x00000031ce8938d4 in IPC::Connection::dispatchMessage(std::unique_ptr<IPC::MessageDecoder, std::default_delete<IPC::MessageDecoder> >) () at /lib64/libwebkit2gtk-4.0.so.37
#19 0x00000031ce893a55 in IPC::Connection::dispatchOneMessage() () at /lib64/libwebkit2gtk-4.0.so.37
#20 0x00000031cfd0dd3a in WTF::RunLoop::performWork() () at /lib64/libwebkit2gtk-4.0.so.37
#21 0x00000031b16bc041 in WTF::GMainLoopSource::voidCallback() () at /lib64/libjavascriptcoregtk-4.0.so.18
#22 0x00000031b16b726a in WTF::GMainLoopSource::voidSourceCallback(WTF::GMainLoopSource*) () at /lib64/libjavascriptcoregtk-4.0.so.18
#23 0x00000031aa8497fb in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#24 0x00000031aa849b98 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#25 0x00000031aa849ec2 in g_main_loop_run () at /lib64/libglib-2.0.so.0
#26 0x00000031cea881f9 in int WebKit::ChildProcessMain<WebKit::WebProcess, WebKit::WebProcessMain>(int, char**) () at /lib64/libwebkit2gtk-4.0.so.37
#27 0x00000031a7c1ffe0 in __libc_start_main (main=0x400780 <main>, argc=2, argv=0x7fffec0be908, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffec0be8f8) at libc-start.c:289
#28 0x00000000004007d4 in _start ()
