Application: KMail (kmail), signal: Segmentation fault Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0x7f949c0a82c0 (LWP 1000))] Thread 23 (Thread 0x7f93fd31e700 (LWP 18106)): #0 0x00007f94b8c76ed9 in futex_reltimed_wait_cancelable (private=, reltime=0x7f93fd31da60, expected=0, futex_word=0x7f93fd31dc48) at ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1 __pthread_cond_wait_common (abstime=0x7f93fd31db00, mutex=0x7f93fd31dbf8, cond=0x7f93fd31dc20) at pthread_cond_wait.c:533 #2 __pthread_cond_timedwait (cond=0x7f93fd31dc20, mutex=0x7f93fd31dbf8, abstime=0x7f93fd31db00) at pthread_cond_wait.c:667 #3 0x00007f94ae5c43d7 in base::ConditionVariable::TimedWait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:120 #4 0x00007f94ae5c4d67 in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:221 #5 0x00007f94ae5c4e52 in base::WaitableEvent::TimedWait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:161 #6 0x00007f94ae57f7f1 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:37 #7 0x00007f94ae581097 in base::internal::SchedulerWorker::RunWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:296 #8 0x00007f94ae581754 in base::internal::SchedulerWorker::RunPooledWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:224 #9 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #10 0x00007f94b8c706db in start_thread (arg=0x7f93fd31e700) at pthread_create.c:463 #11 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 22 (Thread 0x7f94133c5700 (LWP 18103)): #0 0x00007f94b8c76ed9 in futex_reltimed_wait_cancelable (private=, reltime=0x7f94133c4a60, expected=0, futex_word=0x7f94133c4c48) at ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1 __pthread_cond_wait_common (abstime=0x7f94133c4b00, mutex=0x7f94133c4bf8, cond=0x7f94133c4c20) at pthread_cond_wait.c:533 #2 __pthread_cond_timedwait (cond=0x7f94133c4c20, mutex=0x7f94133c4bf8, abstime=0x7f94133c4b00) at pthread_cond_wait.c:667 #3 0x00007f94ae5c43d7 in base::ConditionVariable::TimedWait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:120 #4 0x00007f94ae5c4d67 in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:221 #5 0x00007f94ae5c4e52 in base::WaitableEvent::TimedWait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:161 #6 0x00007f94ae57f7f1 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:37 #7 0x00007f94ae5814c0 in base::internal::SchedulerWorker::RunWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:324 #8 0x00007f94ae581754 in base::internal::SchedulerWorker::RunPooledWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:224 #9 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #10 0x00007f94b8c706db in start_thread (arg=0x7f94133c5700) at pthread_create.c:463 #11 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 21 (Thread 0x7f9457fff700 (LWP 18102)): #0 0x00007f94b8c76ed9 in futex_reltimed_wait_cancelable (private=, reltime=0x7f9457ffea60, expected=0, futex_word=0x7f9457ffec48) at ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1 __pthread_cond_wait_common (abstime=0x7f9457ffeb00, mutex=0x7f9457ffebf8, cond=0x7f9457ffec20) at pthread_cond_wait.c:533 #2 __pthread_cond_timedwait (cond=0x7f9457ffec20, mutex=0x7f9457ffebf8, abstime=0x7f9457ffeb00) at pthread_cond_wait.c:667 #3 0x00007f94ae5c43d7 in base::ConditionVariable::TimedWait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:120 #4 0x00007f94ae5c4d67 in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:221 #5 0x00007f94ae5c4e52 in base::WaitableEvent::TimedWait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:161 #6 0x00007f94ae57f7f1 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:37 #7 0x00007f94ae5814c0 in base::internal::SchedulerWorker::RunWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:324 #8 0x00007f94ae581754 in base::internal::SchedulerWorker::RunPooledWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:224 #9 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #10 0x00007f94b8c706db in start_thread (arg=0x7f9457fff700) at pthread_create.c:463 #11 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 20 (Thread 0x7f93fdb1f700 (LWP 18101)): #0 0x00007f94b8c76ed9 in futex_reltimed_wait_cancelable (private=, reltime=0x7f93fdb1ea60, expected=0, futex_word=0x7f93fdb1ec48) at ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1 __pthread_cond_wait_common (abstime=0x7f93fdb1eb00, mutex=0x7f93fdb1ebf8, cond=0x7f93fdb1ec20) at pthread_cond_wait.c:533 #2 __pthread_cond_timedwait (cond=0x7f93fdb1ec20, mutex=0x7f93fdb1ebf8, abstime=0x7f93fdb1eb00) at pthread_cond_wait.c:667 #3 0x00007f94ae5c43d7 in base::ConditionVariable::TimedWait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:120 #4 0x00007f94ae5c4d67 in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:221 #5 0x00007f94ae5c4e52 in base::WaitableEvent::TimedWait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:161 #6 0x00007f94ae57f7f1 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:37 #7 0x00007f94ae5814c0 in base::internal::SchedulerWorker::RunWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:324 #8 0x00007f94ae581754 in base::internal::SchedulerWorker::RunPooledWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:224 #9 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #10 0x00007f94b8c706db in start_thread (arg=0x7f93fdb1f700) at pthread_create.c:463 #11 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 19 (Thread 0x7f93ffa29700 (LWP 18099)): #0 0x00007f94b8c76ed9 in futex_reltimed_wait_cancelable (private=, reltime=0x7f93ffa28a60, expected=0, futex_word=0x7f93ffa28c48) at ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1 __pthread_cond_wait_common (abstime=0x7f93ffa28b00, mutex=0x7f93ffa28bf8, cond=0x7f93ffa28c20) at pthread_cond_wait.c:533 #2 __pthread_cond_timedwait (cond=0x7f93ffa28c20, mutex=0x7f93ffa28bf8, abstime=0x7f93ffa28b00) at pthread_cond_wait.c:667 #3 0x00007f94ae5c43d7 in base::ConditionVariable::TimedWait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:120 #4 0x00007f94ae5c4d67 in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:221 #5 0x00007f94ae5c4e52 in base::WaitableEvent::TimedWait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:161 #6 0x00007f94ae57f7f1 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:37 #7 0x00007f94ae5814c0 in base::internal::SchedulerWorker::RunWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:324 #8 0x00007f94ae581754 in base::internal::SchedulerWorker::RunPooledWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:224 #9 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #10 0x00007f94b8c706db in start_thread (arg=0x7f93ffa29700) at pthread_create.c:463 #11 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 18 (Thread 0x7f9456ffd700 (LWP 10059)): #0 0x00007f94b8c76ed9 in futex_reltimed_wait_cancelable (private=, reltime=0x7f9456ffca60, expected=0, futex_word=0x7f9456ffcc48) at ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1 __pthread_cond_wait_common (abstime=0x7f9456ffcb00, mutex=0x7f9456ffcbf8, cond=0x7f9456ffcc20) at pthread_cond_wait.c:533 #2 __pthread_cond_timedwait (cond=0x7f9456ffcc20, mutex=0x7f9456ffcbf8, abstime=0x7f9456ffcb00) at pthread_cond_wait.c:667 #3 0x00007f94ae5c43d7 in base::ConditionVariable::TimedWait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:120 #4 0x00007f94ae5c4d67 in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:221 #5 0x00007f94ae5c4e52 in base::WaitableEvent::TimedWait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:161 #6 0x00007f94ae57f7f1 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:37 #7 0x00007f94ae5814c0 in base::internal::SchedulerWorker::RunWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:324 #8 0x00007f94ae581754 in base::internal::SchedulerWorker::RunPooledWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:224 #9 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #10 0x00007f94b8c706db in start_thread (arg=0x7f9456ffd700) at pthread_create.c:463 #11 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 17 (Thread 0x7f9411c7c700 (LWP 1955)): #0 0x00007f94b7060d79 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #1 0x00007f94b701a9a3 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f94b701b36b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f94b701b54c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007f94c3975f5b in QEventDispatcherGlib::processEvents (this=0x7f9408000b20, flags=...) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:424 #5 0x00007f94c39164fa in QEventLoop::exec (this=this@entry=0x7f9411c7bd20, flags=..., flags@entry=...) at /src/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:225 #6 0x00007f94c373a1aa in QThread::exec (this=) at /src/qt5/qtbase/src/corelib/thread/qthread.cpp:534 #7 0x00007f94c373b982 in QThreadPrivate::start (arg=0x55bd1d79e6c0) at /src/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:361 #8 0x00007f94b8c706db in start_thread (arg=0x7f9411c7c700) at pthread_create.c:463 #9 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 16 (Thread 0x7f9413be9700 (LWP 1713)): #0 0x00007f94b8c769f3 in futex_wait_cancelable (private=, expected=0, futex_word=0x7f9413be8c58) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x7f9413be8c08, cond=0x7f9413be8c30) at pthread_cond_wait.c:502 #2 __pthread_cond_wait (cond=0x7f9413be8c30, mutex=0x7f9413be8c08) at pthread_cond_wait.c:655 #3 0x00007f94ae5c4309 in base::ConditionVariable::Wait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:71 #4 0x00007f94ae5c4d7c in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:223 #5 0x00007f94ae5c4e0f in base::WaitableEvent::Wait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:154 #6 0x00007f94ae57f7c5 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:35 #7 0x00007f94ae5814c0 in base::internal::SchedulerWorker::RunWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:324 #8 0x00007f94ae5817d4 in base::internal::SchedulerWorker::RunDedicatedWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:248 #9 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #10 0x00007f94b8c706db in start_thread (arg=0x7f9413be9700) at pthread_create.c:463 #11 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 15 (Thread 0x7f944effd700 (LWP 1702)): #0 0x00007f94a0f77d50 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so #1 0x00007f94a0f7875e in pa_fdsem_before_poll () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so #2 0x00007f94a0f902b9 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so #3 0x00007f94a6b880d8 in pa_mainloop_dispatch () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 #4 0x00007f94a6b884ae in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 #5 0x00007f94a6b88530 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 #6 0x00007f94a6b96399 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 #7 0x00007f94a0fa02a8 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so #8 0x00007f94b8c706db in start_thread (arg=0x7f944effd700) at pthread_create.c:463 #9 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 14 (Thread 0x7f944f7fe700 (LWP 1697)): #0 0x00007f94c3028187 in __GI___libc_write (fd=2, buf=0x7f944f7faf90, nbytes=39) at ../sysdeps/unix/sysv/linux/write.c:27 #1 0x00007f94c2fa31bd in _IO_new_file_write (f=0x7f94c3304680 <_IO_2_1_stderr_>, data=0x7f944f7faf90, n=39) at fileops.c:1203 #2 0x00007f94c2fa3b2f in new_do_write (to_do=, data=0x7f944f7faf90 "[warn] epoll_wait: Bad file descriptor\n", fp=0x7f94c3304680 <_IO_2_1_stderr_>) at fileops.c:457 #3 _IO_new_file_xsputn (f=0x7f94c3304680 <_IO_2_1_stderr_>, data=, n=39) at fileops.c:1277 #4 0x00007f94c2f76707 in buffered_vfprintf (s=s@entry=0x7f94c3304680 <_IO_2_1_stderr_>, format=format@entry=0x7f94a477e6a8 "[%s] %s\n", args=args@entry=0x7f944f7fd550) at vfprintf.c:2350 #5 0x00007f94c2f73726 in _IO_vfprintf_internal (s=s@entry=0x7f94c3304680 <_IO_2_1_stderr_>, format=0x7f94a477e6a8 "[%s] %s\n", ap=ap@entry=0x7f944f7fd550) at vfprintf.c:1301 #6 0x00007f94c304a4c6 in ___fprintf_chk (fp=0x7f94c3304680 <_IO_2_1_stderr_>, flag=1, format=) at fprintf_chk.c:35 #7 0x00007f94a47669ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #8 0x00007f94a4766b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #9 0x00007f94a476846c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #10 0x00007f94a475e114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #11 0x00007f94ae5c7b31 in base::MessagePumpLibevent::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_libevent.cc:214 #12 0x00007f94ae55f13b in base::RunLoop::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/run_loop.cc:102 #13 0x00007f94ae5926c8 in base::Thread::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:255 #14 base::Thread::ThreadMain () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:337 #15 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #16 0x00007f94b8c706db in start_thread (arg=0x7f944f7fe700) at pthread_create.c:463 #17 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 13 (Thread 0x7f944ffff700 (LWP 1696)): #0 0x00007f94b8c76ed9 in futex_reltimed_wait_cancelable (private=, reltime=0x7f944fffea50, expected=0, futex_word=0x7f944fffec38) at ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1 __pthread_cond_wait_common (abstime=0x7f944fffeaf0, mutex=0x7f944fffebe8, cond=0x7f944fffec10) at pthread_cond_wait.c:533 #2 __pthread_cond_timedwait (cond=0x7f944fffec10, mutex=0x7f944fffebe8, abstime=0x7f944fffeaf0) at pthread_cond_wait.c:667 #3 0x00007f94ae5c43d7 in base::ConditionVariable::TimedWait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:120 #4 0x00007f94ae5c4d67 in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:221 #5 0x00007f94ae535e28 in base::MessagePumpDefault::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_default.cc:63 #6 0x00007f94ae55f13b in base::RunLoop::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/run_loop.cc:102 #7 0x00007f94ae5926c8 in base::Thread::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:255 #8 base::Thread::ThreadMain () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:337 #9 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #10 0x00007f94b8c706db in start_thread (arg=0x7f944ffff700) at pthread_create.c:463 #11 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 12 (Thread 0x7f9454ff9700 (LWP 1695)): #0 0x00007f949279043b in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77 #1 0x00007f9492733eb7 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77 #2 0x00007f9492aeaa4d in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77 #3 0x00007f9492ac049d in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77 #4 0x00007f9492ac2721 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77 #5 0x00007f9493ba5278 in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0 #6 0x00007f94c5a89b93 in _dl_fini () at dl-fini.c:143 #7 0x00007f94c2f5b041 in __run_exit_handlers (status=1, listp=0x7f94c3303718 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true) at exit.c:108 #8 0x00007f94c2f5b13a in __GI_exit (status=) at exit.c:139 #9 0x00007f94b8ec8735 in _XDefaultIOError () from /usr/lib/x86_64-linux-gnu/libX11.so.6 #10 0x00007f949bc436aa in ioErrorHandler (dpy=0x55bd1600b8a0) at /src/qt5/qtbase/src/plugins/platforms/xcb/qxcbconnection.cpp:171 #11 0x00007f94b8ec895e in _XIOError () from /usr/lib/x86_64-linux-gnu/libX11.so.6 #12 0x00007f94b8ec6a41 in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6 #13 0x00007f9493b669c8 in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0 #14 0x00007f9493afb40c in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0 #15 0x00007f9493b52621 in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0 #16 0x00007f9493b52f38 in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0 #17 0x00007f9492ac4c57 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77 #18 0x00007f9492ac4edb in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77 #19 0x00007f9492ac4f69 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77 #20 0x00007f9492ae8664 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77 #21 0x00007f9492ac22b8 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77 #22 0x00007f9492acb34c in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77 #23 0x00007f9492743015 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77 #24 0x00007f9492748652 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77 #25 0x00007f94af23bc9c in gpu::gles2::BackFramebuffer::Destroy () at ../../../../../qtwebengine/src/3rdparty/chromium/gpu/command_buffer/service/gles2_cmd_decoder.cc:3198 #26 0x00007f94af281146 in gpu::gles2::BackFramebuffer::Destroy () at ../../../../../qtwebengine/src/3rdparty/chromium/gpu/command_buffer/service/gles2_cmd_decoder.cc:3195 #27 gpu::gles2::GLES2DecoderImpl::Destroy () at ../../../../../qtwebengine/src/3rdparty/chromium/gpu/command_buffer/service/gles2_cmd_decoder.cc:5066 #28 0x00007f94b11478ac in gpu::CommandBufferStub::Destroy () at ../../../../../qtwebengine/src/3rdparty/chromium/gpu/ipc/service/command_buffer_stub.cc:482 #29 0x00007f94b1147da3 in gpu::CommandBufferStub::~CommandBufferStub () at ../../../../../qtwebengine/src/3rdparty/chromium/gpu/ipc/service/command_buffer_stub.cc:239 #30 0x00007f94b1153ab1 in gpu::GLES2CommandBufferStub::~GLES2CommandBufferStub () at ../../../../../qtwebengine/src/3rdparty/chromium/gpu/ipc/service/gles2_command_buffer_stub.cc:77 #31 0x00007f94b114d549 in std::default_delete::operator() () at /usr/include/c++/7/bits/unique_ptr.h:78 #32 std::unique_ptr >::~unique_ptr () at /usr/include/c++/7/bits/unique_ptr.h:268 #33 gpu::GpuChannel::OnDestroyCommandBuffer () at ../../../../../qtwebengine/src/3rdparty/chromium/gpu/ipc/service/gpu_channel.cc:667 #34 0x00007f94b114d6db in base::DispatchToMethodImpl, std::tuple<>, 0ul>(gpu::GpuChannel* const&, void (gpu::GpuChannel::*)(int), std::tuple&&, std::tuple<>*, std::integer_sequence, std::integer_sequence) () at ../../../../../qtwebengine/src/3rdparty/chromium/base/tuple.h:94 #35 base::DispatchToMethod, std::tuple<> >(gpu::GpuChannel* const&, void (gpu::GpuChannel::*)(int), std::tuple&&, std::tuple<>*) () at ../../../../../qtwebengine/src/3rdparty/chromium/base/tuple.h:105 #36 IPC::MessageT, std::tuple<> >::Dispatch(IPC::Message const*, gpu::GpuChannel*, gpu::GpuChannel*, void*, void (gpu::GpuChannel::*)(int)) () at ../../../../../qtwebengine/src/3rdparty/chromium/ipc/ipc_message_templates.h:204 #37 gpu::GpuChannel::OnControlMessageReceived () at ../../../../../qtwebengine/src/3rdparty/chromium/gpu/ipc/service/gpu_channel.cc:498 #38 0x00007f94b114f955 in gpu::GpuChannel::HandleMessageHelper () at ../../../../../qtwebengine/src/3rdparty/chromium/gpu/ipc/service/gpu_channel.cc:536 #39 0x00007f94ae51902a in base::OnceCallback::Run() && () at ../../../../../qtwebengine/src/3rdparty/chromium/base/callback.h:99 #40 base::debug::TaskAnnotator::RunTask () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/debug/task_annotator.cc:101 #41 0x00007f94ae53b322 in base::MessageLoop::RunTask () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/message_loop/message_loop.cc:421 #42 0x00007f94ae53bd4c in base::MessageLoop::DeferOrRunPendingTask () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/message_loop/message_loop.cc:432 #43 0x00007f94ae53c237 in base::MessageLoop::DoWork () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/message_loop/message_loop.cc:480 #44 0x00007f94ae535dd1 in base::MessagePumpDefault::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_default.cc:37 #45 0x00007f94ae55f13b in base::RunLoop::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/run_loop.cc:102 #46 0x00007f94ae5926c8 in base::Thread::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:255 #47 base::Thread::ThreadMain () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:337 #48 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #49 0x00007f94b8c706db in start_thread (arg=0x7f9454ff9700) at pthread_create.c:463 #50 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 11 (Thread 0x7f94557fa700 (LWP 1694)): #0 0x00007f94b8c769f3 in futex_wait_cancelable (private=, expected=0, futex_word=0x55bd167854b8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x55bd167853f8, cond=0x55bd16785490) at pthread_cond_wait.c:502 #2 __pthread_cond_wait (cond=0x55bd16785490, mutex=0x55bd167853f8) at pthread_cond_wait.c:655 #3 0x00007f94ae5c4309 in base::ConditionVariable::Wait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:71 #4 0x00007f94af17d858 in cc::SingleThreadTaskGraphRunner::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/cc/raster/single_thread_task_graph_runner.cc:123 #5 0x00007f94ae5928a5 in base::SimpleThread::ThreadMain () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/simple_thread.cc:81 #6 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #7 0x00007f94b8c706db in start_thread (arg=0x7f94557fa700) at pthread_create.c:463 #8 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 10 (Thread 0x7f9455ffb700 (LWP 1691)): #0 0x00007f94b8c769f3 in futex_wait_cancelable (private=, expected=0, futex_word=0x7f9455ffac58) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x7f9455ffac08, cond=0x7f9455ffac30) at pthread_cond_wait.c:502 #2 __pthread_cond_wait (cond=0x7f9455ffac30, mutex=0x7f9455ffac08) at pthread_cond_wait.c:655 #3 0x00007f94ae5c4309 in base::ConditionVariable::Wait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:71 #4 0x00007f94ae5c4d7c in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:223 #5 0x00007f94ae5c4e0f in base::WaitableEvent::Wait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:154 #6 0x00007f94ae57f7c5 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:35 #7 0x00007f94ae5814c0 in base::internal::SchedulerWorker::RunWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:324 #8 0x00007f94ae581794 in base::internal::SchedulerWorker::RunSharedWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:236 #9 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #10 0x00007f94b8c706db in start_thread (arg=0x7f9455ffb700) at pthread_create.c:463 #11 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 9 (Thread 0x7f94567fc700 (LWP 1688)): #0 __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95 #1 0x00007f94c304a474 in ___fprintf_chk (fp=0x7f94c33058b0 <_IO_stdfile_2_lock>, flag=1, format=0x7f94a477e6a8 "[%s] %s\n") at fprintf_chk.c:30 #2 0x00007f94a47669ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #3 0x00007f94a4766b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #4 0x00007f94a476846c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #5 0x00007f94a475e114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #6 0x00007f94ae5c7c74 in base::MessagePumpLibevent::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_libevent.cc:247 #7 0x00007f94ae55f13b in base::RunLoop::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/run_loop.cc:102 #8 0x00007f94adeffcb4 in content::BrowserProcessSubThread::IOThreadRun () at ../../../../../qtwebengine/src/3rdparty/chromium/content/browser/browser_process_sub_thread.cc:178 #9 0x00007f94ae592798 in base::Thread::ThreadMain () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:337 #10 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #11 0x00007f94b8c706db in start_thread (arg=0x7f94567fc700) at pthread_create.c:463 #12 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 8 (Thread 0x7f9471000700 (LWP 1684)): #0 0x00007f94b8c76ed9 in futex_reltimed_wait_cancelable (private=, reltime=0x7f9470fffa60, expected=0, futex_word=0x7f9470fffc48) at ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1 __pthread_cond_wait_common (abstime=0x7f9470fffb00, mutex=0x7f9470fffbf8, cond=0x7f9470fffc20) at pthread_cond_wait.c:533 #2 __pthread_cond_timedwait (cond=0x7f9470fffc20, mutex=0x7f9470fffbf8, abstime=0x7f9470fffb00) at pthread_cond_wait.c:667 #3 0x00007f94ae5c43d7 in base::ConditionVariable::TimedWait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:120 #4 0x00007f94ae5c4d67 in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:221 #5 0x00007f94ae5c4e52 in base::WaitableEvent::TimedWait () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:161 #6 0x00007f94ae57f7f1 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:37 #7 0x00007f94ae5814c0 in base::internal::SchedulerWorker::RunWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:324 #8 0x00007f94ae581754 in base::internal::SchedulerWorker::RunPooledWorker () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/scheduler_worker.cc:224 #9 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #10 0x00007f94b8c706db in start_thread (arg=0x7f9471000700) at pthread_create.c:463 #11 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 7 (Thread 0x7f9471801700 (LWP 1683)): #0 __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95 #1 0x00007f94c304a474 in ___fprintf_chk (fp=0x7f94c33058b0 <_IO_stdfile_2_lock>, flag=1, format=0x7f94a477e6a8 "[%s] %s\n") at fprintf_chk.c:30 #2 0x00007f94a47669ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #3 0x00007f94a4766b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #4 0x00007f94a476846c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #5 0x00007f94a475e114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #6 0x00007f94ae5c7b31 in base::MessagePumpLibevent::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_libevent.cc:214 #7 0x00007f94ae55f13b in base::RunLoop::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/run_loop.cc:102 #8 0x00007f94ae58fce4 in base::internal::ServiceThread::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/task_scheduler/service_thread.cc:60 #9 0x00007f94ae592798 in base::Thread::ThreadMain () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:337 #10 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #11 0x00007f94b8c706db in start_thread (arg=0x7f9471801700) at pthread_create.c:463 #12 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 6 (Thread 0x7f9472803700 (LWP 1681)): #0 __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95 #1 0x00007f94c304a474 in ___fprintf_chk (fp=0x7f94c33058b0 <_IO_stdfile_2_lock>, flag=1, format=0x7f94a477e6a8 "[%s] %s\n") at fprintf_chk.c:30 #2 0x00007f94a47669ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #3 0x00007f94a4766b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #4 0x00007f94a476846c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #5 0x00007f94a475e114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6 #6 0x00007f94ae5c7b31 in base::MessagePumpLibevent::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_libevent.cc:214 #7 0x00007f94ae55f13b in base::RunLoop::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/run_loop.cc:102 #8 0x00007f94ae5926c8 in base::Thread::Run () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:255 #9 base::Thread::ThreadMain () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:337 #10 0x00007f94ae5c70b1 in ThreadFunc () at ./../../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:76 #11 0x00007f94b8c706db in start_thread (arg=0x7f9472803700) at pthread_create.c:463 #12 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 5 (Thread 0x7f947b082700 (LWP 1566)): #0 0x00007f94c302cbf9 in __GI___poll (fds=0x7f94740049b0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007f94b701b439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f94b701b54c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f94c3975f5b in QEventDispatcherGlib::processEvents (this=0x7f9474000b20, flags=...) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:424 #4 0x00007f94c39164fa in QEventLoop::exec (this=this@entry=0x7f947b081d20, flags=..., flags@entry=...) at /src/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:225 #5 0x00007f94c373a1aa in QThread::exec (this=) at /src/qt5/qtbase/src/corelib/thread/qthread.cpp:534 #6 0x00007f94c373b982 in QThreadPrivate::start (arg=0x55bd1667d180) at /src/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:361 #7 0x00007f94b8c706db in start_thread (arg=0x7f947b082700) at pthread_create.c:463 #8 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 4 (Thread 0x7f948a5ed700 (LWP 1425)): #0 0x00007f94c302cbf9 in __GI___poll (fds=0x7f948000b8e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007f94b701b439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f94b701b54c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f94c3975f5b in QEventDispatcherGlib::processEvents (this=0x7f9480000b20, flags=...) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:424 #4 0x00007f94c39164fa in QEventLoop::exec (this=this@entry=0x7f948a5ecd20, flags=..., flags@entry=...) at /src/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:225 #5 0x00007f94c373a1aa in QThread::exec (this=) at /src/qt5/qtbase/src/corelib/thread/qthread.cpp:534 #6 0x00007f94c373b982 in QThreadPrivate::start (arg=0x55bd16410ce0) at /src/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:361 #7 0x00007f94b8c706db in start_thread (arg=0x7f948a5ed700) at pthread_create.c:463 #8 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 3 (Thread 0x7f948adee700 (LWP 1424)): #0 0x00007f94c302cbf9 in __GI___poll (fds=0x7f947c003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007f94b701b439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f94b701b54c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f94c3975f5b in QEventDispatcherGlib::processEvents (this=0x7f947c000b20, flags=...) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:424 #4 0x00007f94c39164fa in QEventLoop::exec (this=this@entry=0x7f948adedd20, flags=..., flags@entry=...) at /src/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:225 #5 0x00007f94c373a1aa in QThread::exec (this=) at /src/qt5/qtbase/src/corelib/thread/qthread.cpp:534 #6 0x00007f94c373b982 in QThreadPrivate::start (arg=0x55bd164bc570) at /src/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:361 #7 0x00007f94b8c706db in start_thread (arg=0x7f948adee700) at pthread_create.c:463 #8 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 2 (Thread 0x7f948b5ef700 (LWP 1380)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007f94c373e104 in QtLinuxFutex::_q_futex (val3=0, addr2=0x0, val2=0, val=, op=0, addr=) at /src/qt5/qtbase/src/corelib/thread/qfutex_p.h:92 #2 QtLinuxFutex::futexWait > (expectedValue=, futex=...) at /src/qt5/qtbase/src/corelib/thread/qfutex_p.h:107 #3 futexSemaphoreTryAcquire_loop (timeout=-1, nn=8589934593, curValue=, u=...) at /src/qt5/qtbase/src/corelib/thread/qsemaphore.cpp:219 #4 futexSemaphoreTryAcquire (timeout=-1, n=n@entry=1, u=...) at /src/qt5/qtbase/src/corelib/thread/qsemaphore.cpp:262 #5 QSemaphore::acquire (this=this@entry=0x7f948b5ee7a0, n=n@entry=1) at /src/qt5/qtbase/src/corelib/thread/qsemaphore.cpp:326 #6 0x00007f94c3948a90 in QMetaObject::activate (sender=sender@entry=0x7f948c005230, signalOffset=, local_signal_index=local_signal_index@entry=5, argv=argv@entry=0x7f948b5ee830) at /src/qt5/qtbase/src/corelib/kernel/qobject.cpp:3752 #7 0x00007f94c3948ed7 in QMetaObject::activate (sender=sender@entry=0x7f948c005230, m=m@entry=0x7f94c5c24a60 , local_signal_index=local_signal_index@entry=5, argv=argv@entry=0x7f948b5ee830) at /src/qt5/qtbase/src/corelib/kernel/qobject.cpp:3640 #8 0x00007f94c5c09213 in QDBusConnectionPrivate::signalNeedsDisconnecting (this=this@entry=0x7f948c005230, _t1=..., _t2=...) at .moc/moc_qdbusconnection_p.cpp:363 #9 0x00007f94c5bb5184 in QDBusConnectionPrivate::disconnectRelay (this=this@entry=0x7f948c005230, service=..., path=..., interface=..., receiver=receiver@entry=0x7f948404a550, signal=...) at /src/qt5/qtbase/src/dbus/qdbusintegrator.cpp:2422 #10 0x00007f94c5bc747e in QDBusAbstractInterfacePrivate::finishDisconnectNotify (ptr=0x7f948404a550, signalId=) at /src/qt5/qtbase/src/dbus/qdbusabstractinterface.cpp:667 #11 0x00007f94c3949372 in QObject::event (this=0x7f948404a550, e=) at /src/qt5/qtbase/src/corelib/kernel/qobject.cpp:1258 #12 0x00007f94c39181e9 in doNotify (event=0x7f948c0492d0, receiver=0x7f948404a550) at /src/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1151 #13 QCoreApplication::notify (event=, receiver=, this=) at /src/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1137 #14 QCoreApplication::notifyInternal2 (receiver=0x7f948404a550, event=0x7f948c0492d0) at /src/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1061 #15 0x00007f94c39183de in QCoreApplication::sendEvent (receiver=, event=event@entry=0x7f948c0492d0) at /src/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1451 #16 0x00007f94c391ad77 in QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x55bd163fbbc0) at /src/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1800 #17 0x00007f94c391b328 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at /src/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1654 #18 0x00007f94c3976913 in postEventSourceDispatch (s=0x7f94840047a0) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:276 #19 0x00007f94b701b287 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #20 0x00007f94b701b4c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #21 0x00007f94b701b54c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #22 0x00007f94c3975f5b in QEventDispatcherGlib::processEvents (this=0x7f9484000b20, flags=...) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:424 #23 0x00007f94c39164fa in QEventLoop::exec (this=this@entry=0x7f948b5eed20, flags=..., flags@entry=...) at /src/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:225 #24 0x00007f94c373a1aa in QThread::exec (this=) at /src/qt5/qtbase/src/corelib/thread/qthread.cpp:534 #25 0x00007f94c373b982 in QThreadPrivate::start (arg=0x55bd16488da0) at /src/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:361 #26 0x00007f94b8c706db in start_thread (arg=0x7f948b5ef700) at pthread_create.c:463 #27 0x00007f94c303988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 1 (Thread 0x7f949c0a82c0 (LWP 1000)): [KCrash Handler] #6 content::RenderProcessHostImpl::Cleanup () at ../../../../../qtwebengine/src/3rdparty/chromium/content/browser/renderer_host/render_process_host_impl.cc:3345 #7 0x00007f94ae247f97 in content::RenderProcessHostImpl::RemoveRoute () at ../../../../../qtwebengine/src/3rdparty/chromium/content/browser/renderer_host/render_process_host_impl.cc:2442 #8 0x00007f94ae253f1c in content::RenderViewHostImpl::~RenderViewHostImpl () at ../../../../../qtwebengine/src/3rdparty/chromium/content/browser/renderer_host/render_view_host_impl.cc:274 #9 0x00007f94ae254151 in content::RenderViewHostImpl::~RenderViewHostImpl () at ../../../../../qtwebengine/src/3rdparty/chromium/content/browser/renderer_host/render_view_host_impl.cc:280 #10 0x00007f94ae253912 in content::RenderViewHostImpl::ShutdownAndDestroy () at ../../../../../qtwebengine/src/3rdparty/chromium/content/browser/renderer_host/render_view_host_impl.cc:810 #11 0x00007f94ae043187 in content::FrameTree::ReleaseRenderViewHostRef () at ../../../../../qtwebengine/src/3rdparty/chromium/content/browser/frame_host/frame_tree.cc:407 #12 0x00007f94ae084cb1 in content::RenderFrameHostImpl::~RenderFrameHostImpl () at ../../../../../qtwebengine/src/3rdparty/chromium/content/browser/frame_host/render_frame_host_impl.cc:721 #13 0x00007f94ae0857a1 in content::RenderFrameHostImpl::~RenderFrameHostImpl () at ../../../../../qtwebengine/src/3rdparty/chromium/content/browser/frame_host/render_frame_host_impl.cc:735 #14 0x00007f94ae096f00 in std::default_delete::operator() () at /usr/include/c++/7/bits/unique_ptr.h:78 #15 std::unique_ptr >::~unique_ptr () at /usr/include/c++/7/bits/unique_ptr.h:268 #16 content::RenderFrameHostManager::~RenderFrameHostManager () at ../../../../../qtwebengine/src/3rdparty/chromium/content/browser/frame_host/render_frame_host_manager.cc:96 #17 0x00007f94ae04735b in content::FrameTreeNode::~FrameTreeNode () at ../../../../../qtwebengine/src/3rdparty/chromium/content/browser/frame_host/frame_tree_node.cc:138 #18 0x00007f94ae04177b in content::FrameTree::~FrameTree () at ../../../../../qtwebengine/src/3rdparty/chromium/content/browser/frame_host/frame_tree.cc:119 #19 0x00007f94ae37677c in content::WebContentsImpl::~WebContentsImpl () at ../../../../../qtwebengine/src/3rdparty/chromium/content/browser/web_contents/web_contents_impl.cc:584 #20 0x00007f94ae376a91 in content::WebContentsImpl::~WebContentsImpl () at ../../../../../qtwebengine/src/3rdparty/chromium/content/browser/web_contents/web_contents_impl.cc:689 #21 0x00007f94ac9f3c67 in std::default_delete::operator() (this=, __ptr=) at /usr/include/c++/7/bits/unique_ptr.h:78 #22 std::unique_ptr >::~unique_ptr (this=0x55bd1665ef38, __in_chrg=) at /usr/include/c++/7/bits/unique_ptr.h:268 #23 QtWebEngineCore::WebContentsAdapter::~WebContentsAdapter (this=0x55bd1665ef20, __in_chrg=) at /src/qt5/qtwebengine/src/core/web_contents_adapter.cpp:427 #24 0x00007f94b3ea9bd2 in QtSharedPointer::ExternalRefCountData::destroy (this=0x55bd1665ef10) at /src/qt5/build9/qtbase/include/QtCore/../../../../qtbase/src/corelib/tools/qsharedpointer_impl.h:157 #25 QSharedPointer::deref (dd=0x55bd1665ef10) at /src/qt5/build9/qtbase/include/QtCore/../../../../qtbase/src/corelib/tools/qsharedpointer_impl.h:465 #26 QSharedPointer::deref (this=0x55bd1678e0c0) at /src/qt5/build9/qtbase/include/QtCore/../../../../qtbase/src/corelib/tools/qsharedpointer_impl.h:460 #27 QSharedPointer::~QSharedPointer (this=0x55bd1678e0c0, __in_chrg=) at /src/qt5/build9/qtbase/include/QtCore/../../../../qtbase/src/corelib/tools/qsharedpointer_impl.h:315 #28 QWebEnginePagePrivate::~QWebEnginePagePrivate (this=0x55bd1678e0b0, __in_chrg=) at /src/qt5/qtwebengine/src/webenginewidgets/api/qwebenginepage.cpp:261 #29 0x00007f94b3ea9c49 in QWebEnginePagePrivate::~QWebEnginePagePrivate (this=0x55bd1678e0b0, __in_chrg=) at /src/qt5/qtwebengine/src/webenginewidgets/api/qwebenginepage.cpp:265 #30 0x00007f94b3ea57a2 in QScopedPointerDeleter::cleanup (pointer=) at /src/qt5/build9/qtbase/include/QtCore/../../../../qtbase/src/corelib/tools/qscopedpointer.h:60 #31 QScopedPointer >::~QScopedPointer (this=0x55bd166658f0, __in_chrg=) at /src/qt5/build9/qtbase/include/QtCore/../../../../qtbase/src/corelib/tools/qscopedpointer.h:107 #32 QWebEnginePage::~QWebEnginePage (this=0x55bd166658e0, __in_chrg=) at /src/qt5/qtwebengine/src/webenginewidgets/api/qwebenginepage.cpp:900 #33 0x00007f94be9aa1be in WebEngineViewer::WebEnginePage::~WebEnginePage() () from /opt/kde5/lib/x86_64-linux-gnu/libKF5WebEngineViewer.so.5 #34 0x00007f94bff83ce6 in MessageViewer::MailWebEnginePage::~MailWebEnginePage() () from /opt/kde5/lib/x86_64-linux-gnu/libKF5MessageViewer.so.5 #35 0x00007f94bff83d02 in MessageViewer::MailWebEnginePage::~MailWebEnginePage() () from /opt/kde5/lib/x86_64-linux-gnu/libKF5MessageViewer.so.5 #36 0x00007f94c394632b in QObjectPrivate::deleteChildren (this=this@entry=0x55bd167a5100) at /src/qt5/qtbase/src/corelib/kernel/qobject.cpp:2004 #37 0x00007f94c43c3884 in QWidget::~QWidget (this=0x55bd16649950, __in_chrg=) at /src/qt5/qtbase/src/widgets/kernel/qwidget.cpp:1705 #38 0x00007f94be9ac9f1 in WebEngineViewer::WebEngineView::~WebEngineView() () from /opt/kde5/lib/x86_64-linux-gnu/libKF5WebEngineViewer.so.5 #39 0x00007f94bff813e1 in MessageViewer::MailWebEngineView::~MailWebEngineView() () from /opt/kde5/lib/x86_64-linux-gnu/libKF5MessageViewer.so.5 #40 0x00007f94bff81402 in MessageViewer::MailWebEngineView::~MailWebEngineView() () from /opt/kde5/lib/x86_64-linux-gnu/libKF5MessageViewer.so.5 #41 0x00007f94bff09b3b in MessageViewer::ViewerPrivate::~ViewerPrivate() () from /opt/kde5/lib/x86_64-linux-gnu/libKF5MessageViewer.so.5 #42 0x00007f94bff09cfa in MessageViewer::ViewerPrivate::~ViewerPrivate() () from /opt/kde5/lib/x86_64-linux-gnu/libKF5MessageViewer.so.5 #43 0x00007f94c394632b in QObjectPrivate::deleteChildren (this=this@entry=0x55bd166bb930) at /src/qt5/qtbase/src/corelib/kernel/qobject.cpp:2004 #44 0x00007f94c43c3884 in QWidget::~QWidget (this=0x55bd16748430, __in_chrg=) at /src/qt5/qtbase/src/widgets/kernel/qwidget.cpp:1705 #45 0x00007f94bff02f3c in MessageViewer::Viewer::~Viewer() () from /opt/kde5/lib/x86_64-linux-gnu/libKF5MessageViewer.so.5 #46 0x00007f94bff02f5e in MessageViewer::Viewer::~Viewer() () from /opt/kde5/lib/x86_64-linux-gnu/libKF5MessageViewer.so.5 #47 0x00007f94c394632b in QObjectPrivate::deleteChildren (this=this@entry=0x55bd1671a2c0) at /src/qt5/qtbase/src/corelib/kernel/qobject.cpp:2004 #48 0x00007f94c43c3884 in QWidget::~QWidget (this=0x55bd166cc0e0, __in_chrg=) at /src/qt5/qtbase/src/widgets/kernel/qwidget.cpp:1705 #49 0x00007f94c5386a2a in KMReaderWin::~KMReaderWin() () from /opt/kde5/lib/x86_64-linux-gnu/libkmailprivate.so.5 #50 0x00007f94c5386a4c in KMReaderWin::~KMReaderWin() () from /opt/kde5/lib/x86_64-linux-gnu/libkmailprivate.so.5 #51 0x00007f94c394632b in QObjectPrivate::deleteChildren (this=this@entry=0x55bd1660ecd0) at /src/qt5/qtbase/src/corelib/kernel/qobject.cpp:2004 #52 0x00007f94c43c3884 in QWidget::~QWidget (this=0x55bd1653adb0, __in_chrg=) at /src/qt5/qtbase/src/widgets/kernel/qwidget.cpp:1705 #53 0x00007f94c4529519 in QSplitter::~QSplitter (this=0x55bd1653adb0, __in_chrg=) at /src/qt5/qtbase/src/widgets/widgets/qsplitter.cpp:981 #54 0x00007f94c394632b in QObjectPrivate::deleteChildren (this=this@entry=0x55bd169b8e80) at /src/qt5/qtbase/src/corelib/kernel/qobject.cpp:2004 #55 0x00007f94c43c3884 in QWidget::~QWidget (this=0x55bd16710e80, __in_chrg=) at /src/qt5/qtbase/src/widgets/kernel/qwidget.cpp:1705 #56 0x00007f94c4529519 in QSplitter::~QSplitter (this=0x55bd16710e80, __in_chrg=) at /src/qt5/qtbase/src/widgets/widgets/qsplitter.cpp:981 #57 0x00007f94c53d7e13 in KMMainWidget::deleteWidgets() () from /opt/kde5/lib/x86_64-linux-gnu/libkmailprivate.so.5 #58 0x00007f94c53d57e1 in KMMainWidget::destruct() () from /opt/kde5/lib/x86_64-linux-gnu/libkmailprivate.so.5 #59 0x00007f94c53d55a3 in KMMainWidget::~KMMainWidget() () from /opt/kde5/lib/x86_64-linux-gnu/libkmailprivate.so.5 #60 0x00007f94c53d56e4 in KMMainWidget::~KMMainWidget() () from /opt/kde5/lib/x86_64-linux-gnu/libkmailprivate.so.5 #61 0x00007f94c394632b in QObjectPrivate::deleteChildren (this=this@entry=0x55bd1649f890) at /src/qt5/qtbase/src/corelib/kernel/qobject.cpp:2004 #62 0x00007f94c43c3884 in QWidget::~QWidget (this=0x55bd1651e3a0, __in_chrg=) at /src/qt5/qtbase/src/widgets/kernel/qwidget.cpp:1705 #63 0x00007f94c29eb112 in KMainWindow::~KMainWindow (this=0x55bd1651e3a0, __in_chrg=) at /src/kdesrc/frameworks/kxmlgui/src/kmainwindow.cpp:393 #64 0x00007f94c2a33074 in KXmlGuiWindow::~KXmlGuiWindow (this=0x55bd1651e3a0, __vtt_parm=0x7f94c583e140 , __in_chrg=) at /src/kdesrc/frameworks/kxmlgui/src/kxmlguiwindow.cpp:111 #65 0x00007f94c5380b23 in KMMainWin::~KMMainWin() () from /opt/kde5/lib/x86_64-linux-gnu/libkmailprivate.so.5 #66 0x00007f94c5380b76 in KMMainWin::~KMMainWin() () from /opt/kde5/lib/x86_64-linux-gnu/libkmailprivate.so.5 #67 0x00007f94c3949390 in QObject::event (this=this@entry=0x55bd1651e3a0, e=e@entry=0x55bd1eac5ba0) at /src/qt5/qtbase/src/corelib/kernel/qobject.cpp:1249 #68 0x00007f94c43c865b in QWidget::event (this=this@entry=0x55bd1651e3a0, event=event@entry=0x55bd1eac5ba0) at /src/qt5/qtbase/src/widgets/kernel/qwidget.cpp:9342 #69 0x00007f94c44d0340 in QMainWindow::event (this=0x55bd1651e3a0, event=0x55bd1eac5ba0) at /src/qt5/qtbase/src/widgets/widgets/qmainwindow.cpp:1352 #70 0x00007f94c29ed3ba in KMainWindow::event (this=0x55bd1651e3a0, ev=0x55bd1eac5ba0) at /src/kdesrc/frameworks/kxmlgui/src/kmainwindow.cpp:869 #71 0x00007f94c2a3323d in KXmlGuiWindow::event (this=0x55bd1651e3a0, ev=0x55bd1eac5ba0) at /src/kdesrc/frameworks/kxmlgui/src/kxmlguiwindow.cpp:119 #72 0x00007f94c4387eac in QApplicationPrivate::notify_helper (this=this@entry=0x55bd15ffb050, receiver=receiver@entry=0x55bd1651e3a0, e=e@entry=0x55bd1eac5ba0) at /src/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3752 #73 0x00007f94c438f410 in QApplication::notify (this=0x7fff489d07f0, receiver=0x55bd1651e3a0, e=0x55bd1eac5ba0) at /src/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3499 #74 0x00007f94c3918208 in QCoreApplication::notifyInternal2 (receiver=0x55bd1651e3a0, event=0x55bd1eac5ba0) at /src/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1061 #75 0x00007f94c39183de in QCoreApplication::sendEvent (receiver=, event=event@entry=0x55bd1eac5ba0) at /src/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1451 #76 0x00007f94c391ad77 in QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x55bd15ff4a70) at /src/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1800 #77 0x00007f94c391b328 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at /src/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1654 #78 0x00007f94c3976913 in postEventSourceDispatch (s=0x55bd1604f0e0) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:276 #79 0x00007f94b701b287 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #80 0x00007f94b701b4c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #81 0x00007f94b701b54c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #82 0x00007f94c3975f3f in QEventDispatcherGlib::processEvents (this=0x55bd1604d5f0, flags=...) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:422 #83 0x00007f94c39164fa in QEventLoop::exec (this=this@entry=0x7fff489d0730, flags=..., flags@entry=...) at /src/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:225 #84 0x00007f94c391f7c0 in QCoreApplication::exec () at /src/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1364 #85 0x000055bd15c4a93e in main ()