#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
  [Error: raise.c was not found in source tree]
#1  0x00007fb97b0e0f5d in __GI_abort () at abort.c:90
  [Error: abort.c was not found in source tree]
#2  0x00007fb97a3d2c99 in os::abort (dump_core=<optimized out>) at ./src/hotspot/src/os/linux/vm/os_linux.cpp:1509
  1504:     char buf[16];
  1505:     jio_snprintf(buf, sizeof(buf), UINTX_FORMAT, os::current_thread_id());
  1506:     out.print_raw_cr(buf);
  1507:     out.print_raw_cr("Dumping core ...");
  1508: #endif
  1509:     ::abort(); // dump core
  1510:   }
  1511: 
  1512:   ::exit(1);
  1513: }
  1514: 
#3  0x00007fb97a598443 in VMError::report_and_die (this=this@entry=0x7fb8f45062d0) at ./src/hotspot/src/share/vm/utilities/vmError.cpp:1060
  1055:     // os::abort() will call abort hooks, try it first.
  1056:     static bool skip_os_abort = false;
  1057:     if (!skip_os_abort) {
  1058:       skip_os_abort = true;
  1059:       bool dump_core = should_report_bug(first_error->_id);
  1060:       os::abort(dump_core);
  1061:     }
  1062: 
  1063:     // if os::abort() doesn't abort, try os::die();
  1064:     os::die();
  1065:   }
#4  0x00007fb97a3dcbb4 in JVM_handle_linux_signal (sig=sig@entry=11, info=info@entry=0x7fb8f4506570, ucVoid=ucVoid@entry=0x7fb8f4506440, abort_if_unrecognized=abort_if_unrecognized@entry=1) at ./src/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp:541
  536:   sigemptyset(&newset);
  537:   sigaddset(&newset, sig);
  538:   sigprocmask(SIG_UNBLOCK, &newset, NULL);
  539: 
  540:   VMError err(t, sig, pc, info, ucVoid);
  541:   err.report_and_die();
  542: 
  543:   ShouldNotReachHere();
  544: }
  545: 
  546: void os::Linux::init_thread_fpu_state(void) {
#5  0x00007fb97a3cff08 in signalHandler (sig=11, info=0x7fb8f4506570, uc=0x7fb8f4506440) at ./src/hotspot/src/os/linux/vm/os_linux.cpp:4346
  4341:                         void* ucontext, int abort_if_unrecognized);
  4342: 
  4343: void signalHandler(int sig, siginfo_t* info, void* uc) {
  4344:   assert(info != NULL && uc != NULL, "it must be old kernel");
  4345:   int orig_errno = errno;  // Preserve errno value over signal handler.
  4346:   JVM_handle_linux_signal(sig, info, uc, true);
  4347:   errno = orig_errno;
  4348: }
  4349: 
  4350: 
  4351: // This boolean allows users to forward their own non-matching signals
#6  <signal handler called>
#7  0x00007fb81c766fcc in WTFCrash () at ./Source/WTF/wtf/Assertions.cpp:278
  [Error: Assertions.cpp was not found in source tree]
#8  0x00007fb81d69c4e1 in WebKit::CallbackMap::invalidate (error=WebKit::CallbackBase::Error::OwnerWasInvalidated, this=0x7fb8141da028) at ./Source/WebKit/UIProcess/GenericCallback.h:225
  [Error: GenericCallback.h was not found in source tree]
#9  WebKit::WebCookieManagerProxy::processPoolDestroyed (this=0x7fb8141da000) at ./Source/WebKit/UIProcess/WebCookieManagerProxy.cpp:76
  [Error: WebCookieManagerProxy.cpp was not found in source tree]
#10 0x00007fb81d6e189a in WebKit::WebProcessPool::~WebProcessPool (this=0x7fb7d3ffe000, __in_chrg=<optimized out>) at ./Source/WebKit/UIProcess/WebProcessPool.cpp:298
  [Error: WebProcessPool.cpp was not found in source tree]
#11 0x00007fb81d6e1d59 in WebKit::WebProcessPool::~WebProcessPool (this=0x7fb7d3ffe000, __in_chrg=<optimized out>) at ./Source/WebKit/UIProcess/WebProcessPool.cpp:317
  [Error: WebProcessPool.cpp was not found in source tree]
#12 0x00007fb81d897d00 in WTF::ThreadSafeRefCounted<API::Object>::deref (this=<optimized out>) at ./Source/WTF/wtf/ThreadSafeRefCounted.h:71
  [Error: ThreadSafeRefCounted.h was not found in source tree]
#13 WTF::derefIfNotNull<WebKit::WebProcessPool> (ptr=<optimized out>) at ./Source/WTF/wtf/RefPtr.h:45
  [Error: RefPtr.h was not found in source tree]
#14 WTF::RefPtr<WebKit::WebProcessPool>::~RefPtr (this=0x7fb977267800, __in_chrg=<optimized out>) at ./Source/WTF/wtf/RefPtr.h:69
  [Error: RefPtr.h was not found in source tree]
#15 _WebKitWebContextPrivate::~_WebKitWebContextPrivate (this=0x7fb977267800, __in_chrg=<optimized out>) at ./Source/WebKit/UIProcess/API/glib/WebKitWebContext.cpp:163
  [Error: WebKitWebContext.cpp was not found in source tree]
#16 webkit_web_context_finalize (object=0x7fb9772678d0) at ./Source/WebKit/UIProcess/API/glib/WebKitWebContext.cpp:245
  [Error: WebKitWebContext.cpp was not found in source tree]
#17 0x00007fb8d8ca7eb2 in g_object_unref (_object=0x7fb9772678d0) at ../../../../gobject/gobject.c:3330
  [Error: gobject.c was not found in source tree]
#18 0x00007fb97b0e3ec0 in __run_exit_handlers (status=status@entry=0, listp=0x7fb97b4826f8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true) at exit.c:83
  [Error: exit.c was not found in source tree]
#19 0x00007fb97b0e3f1a in __GI_exit (status=status@entry=0) at exit.c:105
  [Error: exit.c was not found in source tree]
#20 0x00007fb97a168d8c in vm_direct_exit (code=0) at ./src/hotspot/src/share/vm/runtime/java.cpp:601
  596: }
  597: 
  598: void vm_direct_exit(int code) {
  599:   notify_vm_shutdown();
  600:   os::wait_for_keypress_at_exit();
  601:   ::exit(code);
  602: }
  603: 
  604: void vm_perform_shutdown_actions() {
  605:   // Warning: do not call 'exit_globals()' here. All threads are still running.
  606:   // Calling 'exit_globals()' will disable thread-local-storage and cause all
#21 0x00007fb97a59e8b6 in VM_Operation::evaluate (this=this@entry=0x7fb97b89a6a0) at ./src/hotspot/src/share/vm/runtime/vm_operations.cpp:62
  57:   ResourceMark rm;
  58:   if (TraceVMOperation) {
  59:     tty->print("[");
  60:     NOT_PRODUCT(print();)
  61:   }
  62:   doit();
  63:   if (TraceVMOperation) {
  64:     tty->print_cr("]");
  65:   }
  66: }
  67: 
#22 0x00007fb97a59cc35 in VMThread::evaluate_operation (this=this@entry=0x7fb974200800, op=0x7fb97b89a6a0) at ./src/hotspot/src/share/vm/runtime/vmThread.cpp:377
  372:                      op->evaluation_mode());
  373: #endif /* USDT2 */
  374: 
  375:     EventExecuteVMOperation event;
  376: 
  377:     op->evaluate();
  378: 
  379:     if (event.should_commit()) {
  380:       bool is_concurrent = op->evaluate_concurrently();
  381:       event.set_operation(op->type());
  382:       event.set_safepoint(op->evaluate_at_safepoint());
#23 0x00007fb97a59d5ad in VMThread::loop (this=this@entry=0x7fb974200800) at ./src/hotspot/src/share/vm/runtime/vmThread.cpp:502
  497:       if (_cur_vm_operation->evaluate_at_safepoint()) {
  498: 
  499:         _vm_queue->set_drain_list(safepoint_ops); // ensure ops can be scanned
  500: 
  501:         SafepointSynchronize::begin();
  502:         evaluate_operation(_cur_vm_operation);
  503:         // now process all queued safepoint ops, iteratively draining
  504:         // the queue until there are none left
  505:         do {
  506:           _cur_vm_operation = safepoint_ops;
  507:           if (_cur_vm_operation != NULL) {
#24 0x00007fb97a59d987 in VMThread::run (this=0x7fb974200800) at ./src/hotspot/src/share/vm/runtime/vmThread.cpp:276
  271:   // priorities and I am *explicitly* using OS priorities so that it's
  272:   // possible to set the VM thread priority higher than any Java thread.
  273:   os::set_native_priority( this, prio );
  274: 
  275:   // Wait for VM_Operations until termination
  276:   this->loop();
  277: 
  278:   // Note the intention to exit before safepointing.
  279:   // 6295565  This has the effect of waiting for any large tty
  280:   // outputs to finish.
  281:   if (xtty != NULL) {
#25 0x00007fb97a3d1c82 in java_start (thread=0x7fb974200800) at ./src/hotspot/src/os/linux/vm/os_linux.cpp:790
  785:       sync->wait(Mutex::_no_safepoint_check_flag);
  786:     }
  787:   }
  788: 
  789:   // call one more level start routine
  790:   thread->run();
  791: 
  792:   return 0;
  793: }
  794: 
  795: bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) {
#26 0x00007fb97aa6f7fc in start_thread (arg=0x7fb8f4507700) at pthread_create.c:465
  [Error: pthread_create.c was not found in source tree]
#27 0x00007fb97b1bcb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  [Error: clone.S was not found in source tree]