Application: kontact (5.12.2)

Qt Version: 5.13.1
Frameworks Version: 5.63.0
Operating System: Linux 5.3.6-1-default x86_64
Distribution: "openSUSE Tumbleweed"

-- Information about the crash:
- What I was doing when the application crashed:

I pressed the button to delete a journal entry. After restarting Kontact the same action resulted in no crash.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
29	  return SYSCALL_CANCEL (poll, fds, nfds, timeout);
[Current thread is 1 (Thread 0x7fa47cf5af80 (LWP 3162))]

Thread 30 (Thread 0x7fa3e7853700 (LWP 7048)):
#0  __GI___libc_read (nbytes=10, buf=0x7fa3e785295e, fd=112) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=fd@entry=112, buf=buf@entry=0x7fa3e785295e, nbytes=nbytes@entry=10) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fa4700f60f1 in read (__nbytes=10, __buf=0x7fa3e785295e, __fd=112) at /usr/include/bits/unistd.h:44
#3  pa_read (fd=112, buf=buf@entry=0x7fa3e785295e, count=count@entry=10, type=type@entry=0x55d721acc458) at pulsecore/core-util.c:422
#4  0x00007fa471c4aa0e in clear_wakeup (m=<optimized out>) at pulse/mainloop.c:782
#5  pa_mainloop_prepare (m=m@entry=0x55d721acc380, timeout=-1) at pulse/mainloop.c:789
#6  0x00007fa471c4b4b0 in pa_mainloop_iterate (m=0x55d721acc380, block=<optimized out>, retval=0x0) at pulse/mainloop.c:923
#7  0x00007fa471c4b570 in pa_mainloop_run (m=0x55d721acc380, retval=retval@entry=0x0) at pulse/mainloop.c:945
#8  0x00007fa471c59439 in thread (userdata=0x55d721a1f6f0) at pulse/thread-mainloop.c:101
#9  0x00007fa470123c78 in internal_thread_func (userdata=0x55d720c38860) at pulsecore/thread-posix.c:81
#10 0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7fa3454d2700 (LWP 7047)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fa3454d18e0, clockid=<optimized out>, expected=0, futex_word=0x7fa3454d1a08) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
#1  __pthread_cond_wait_common (abstime=0x7fa3454d18e0, clockid=<optimized out>, mutex=0x7fa3454d19b8, cond=0x7fa3454d19e0) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7fa3454d19e0, mutex=0x7fa3454d19b8, abstime=0x7fa3454d18e0) at pthread_cond_wait.c:656
#3  0x00007fa475c4c486 in base::ConditionVariable::TimedWait () at ./../../3rdparty/chromium/base/synchronization/condition_variable_posix.cc:127
#4  0x00007fa475c4ce53 in base::WaitableEvent::TimedWaitUntil () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:230
#5  0x00007fa475c4cfd1 in base::WaitableEvent::TimedWait () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:162
#6  0x00007fa475c05141 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:37
#7  0x00007fa475c07fdd in base::internal::SchedulerWorker::RunWorker () at ./../../3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:303
#8  0x00007fa475c086d4 in base::internal::SchedulerWorker::RunPooledWorker () at ./../../3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:229
#9  0x00007fa475c4f2c5 in ThreadFunc () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#10 0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7fa344cd1700 (LWP 6715)):
#0  0x00007fa47d7f8bdf in __GI___poll (fds=0x7fa3f8002fe0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa47bd3e2ae in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fa3f8002fe0, timeout=<optimized out>, context=0x7fa3f8000bf0) at ../glib/gmain.c:4216
#2  g_main_context_iterate (context=context@entry=0x7fa3f8000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3912
#3  0x00007fa47bd3e3cf in g_main_context_iteration (context=0x7fa3f8000bf0, may_block=may_block@entry=1) at ../glib/gmain.c:3978
#4  0x00007fa47ddbf99b in QEventDispatcherGlib::processEvents (this=0x7fa3f8002000, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fa47dd680db in QEventLoop::exec (this=this@entry=0x7fa344cd0b20, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007fa47dba0021 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007fa47dba11a2 in QThreadPrivate::start (arg=0x55d7216e0fa0) at thread/qthread_unix.cpp:360
#8  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7fa4365e9700 (LWP 5714)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fa4365e88e0, clockid=<optimized out>, expected=0, futex_word=0x7fa4365e8a08) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
#1  __pthread_cond_wait_common (abstime=0x7fa4365e88e0, clockid=<optimized out>, mutex=0x7fa4365e89b8, cond=0x7fa4365e89e0) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7fa4365e89e0, mutex=0x7fa4365e89b8, abstime=0x7fa4365e88e0) at pthread_cond_wait.c:656
#3  0x00007fa475c4c486 in base::ConditionVariable::TimedWait () at ./../../3rdparty/chromium/base/synchronization/condition_variable_posix.cc:127
#4  0x00007fa475c4ce53 in base::WaitableEvent::TimedWaitUntil () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:230
#5  0x00007fa475c4cfd1 in base::WaitableEvent::TimedWait () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:162
#6  0x00007fa475c05141 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:37
#7  0x00007fa475c0832b in base::internal::SchedulerWorker::RunWorker () at ./../../3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:331
#8  0x00007fa475c086d4 in base::internal::SchedulerWorker::RunPooledWorker () at ./../../3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:229
#9  0x00007fa475c4f2c5 in ThreadFunc () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#10 0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7fa346b0a700 (LWP 3383)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fa346b09a18) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7fa346b099c8, cond=0x7fa346b099f0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7fa346b099f0, mutex=0x7fa346b099c8) at pthread_cond_wait.c:638
#3  0x00007fa475c4c38c in base::ConditionVariable::Wait () at ./../../3rdparty/chromium/base/synchronization/condition_variable_posix.cc:75
#4  0x00007fa475c4ce60 in base::WaitableEvent::TimedWaitUntil () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:232
#5  0x00007fa475c4cf8f in base::WaitableEvent::Wait () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:155
#6  0x00007fa475c05116 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:35
#7  0x00007fa475c0832b in base::internal::SchedulerWorker::RunWorker () at ./../../3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:331
#8  0x00007fa475c08714 in base::internal::SchedulerWorker::RunSharedWorker () at ./../../3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:241
#9  0x00007fa475c4f2c5 in ThreadFunc () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#10 0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7fa34730b700 (LWP 3377)):
#0  ___vsnprintf_chk (s=s@entry=0x7fa34730a3ba "", maxlen=maxlen@entry=1014, flag=flag@entry=1, slen=slen@entry=18446744073709551615, format=0x7fa4720171b5 ": %s", ap=0x7fa34730a2d0, ap@entry=0x7fa34730a2b0) at vsnprintf_chk.c:27
#1  0x00007fa471ffd053 in vsnprintf (__ap=<optimized out>, __fmt=<optimized out>, __n=1014, __s=0x7fa34730a3ba "") at /usr/include/bits/stdio2.h:80
#2  evutil_vsnprintf (ap=<optimized out>, format=<optimized out>, buflen=1014, buf=0x7fa34730a3ba "") at evutil.c:1879
#3  evutil_vsnprintf (buf=0x7fa34730a3ba "", buflen=1014, format=<optimized out>, ap=ap@entry=0x7fa34730a2d0) at evutil.c:1862
#4  0x00007fa471ffd0ef in evutil_snprintf (buf=<optimized out>, buflen=<optimized out>, format=<optimized out>) at evutil.c:1856
#5  0x00007fa471ff1d7c in event_logv_ (severity=severity@entry=2, errstr=0x7fa46a4d3f10 "B\305\202\304\231dny deskryptor pliku", fmt=fmt@entry=0x7fa472018e3d "epoll_wait", ap=ap@entry=0x7fa34730a7e0) at log.c:203
#6  0x00007fa471ff4925 in event_warn (fmt=fmt@entry=0x7fa472018e3d "epoll_wait") at log.c:118
#7  0x00007fa471ff6488 in epoll_dispatch (base=0x7fa340001de0, tv=<optimized out>) at epoll.c:471
#8  0x00007fa472006df5 in event_base_loop (base=0x7fa340001de0, flags=2) at event.c:1998
#9  0x00007fa475c53128 in base::MessagePumpLibevent::Run () at ./../../3rdparty/chromium/base/message_loop/message_pump_libevent.cc:214
#10 0x00007fa475bdf2a7 in base::RunLoop::Run () at ./../../3rdparty/chromium/base/run_loop.cc:150
#11 base::RunLoop::Run () at ./../../3rdparty/chromium/base/run_loop.cc:121
#12 0x00007fa475c1644f in base::Thread::Run () at ./../../3rdparty/chromium/base/threading/thread.cc:251
#13 base::Thread::ThreadMain () at ./../../3rdparty/chromium/base/threading/thread.cc:333
#14 0x00007fa475c4f2c5 in ThreadFunc () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#15 0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#16 0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7fa3e5f92700 (LWP 3336)):
#0  0x00007fa47d7f8bdf in __GI___poll (fds=0x7fa34c003240, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa47bd3e2ae in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fa34c003240, timeout=<optimized out>, context=0x7fa34c000c30) at ../glib/gmain.c:4216
#2  g_main_context_iterate (context=context@entry=0x7fa34c000c30, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3912
#3  0x00007fa47bd3e3cf in g_main_context_iteration (context=0x7fa34c000c30, may_block=may_block@entry=1) at ../glib/gmain.c:3978
#4  0x00007fa47ddbf99b in QEventDispatcherGlib::processEvents (this=0x7fa34c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fa47dd680db in QEventLoop::exec (this=this@entry=0x7fa3e5f91b20, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007fa47dba0021 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007fa47dba11a2 in QThreadPrivate::start (arg=0x55d71d87aa30) at thread/qthread_unix.cpp:360
#8  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7fa3e6793700 (LWP 3334)):
#0  0x00007fa47d7f8bdf in __GI___poll (fds=0x7fa3480029e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa47bd3e2ae in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fa3480029e0, timeout=<optimized out>, context=0x7fa348000c30) at ../glib/gmain.c:4216
#2  g_main_context_iterate (context=context@entry=0x7fa348000c30, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3912
#3  0x00007fa47bd3e3cf in g_main_context_iteration (context=0x7fa348000c30, may_block=may_block@entry=1) at ../glib/gmain.c:3978
#4  0x00007fa47ddbf99b in QEventDispatcherGlib::processEvents (this=0x7fa348000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fa47dd680db in QEventLoop::exec (this=this@entry=0x7fa3e6792b20, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007fa47dba0021 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007fa47dba11a2 in QThreadPrivate::start (arg=0x55d71daf0e50) at thread/qthread_unix.cpp:360
#8  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fa3e7052700 (LWP 3326)):
#0  0x00007fa47bd3d781 in g_main_context_prepare (context=context@entry=0x7fa354000c30, priority=priority@entry=0x7fa3e70519e0) at ../glib/gmain.c:3471
#1  0x00007fa47bd3e1db in g_main_context_iterate (context=context@entry=0x7fa354000c30, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3897
#2  0x00007fa47bd3e3cf in g_main_context_iteration (context=0x7fa354000c30, may_block=may_block@entry=1) at ../glib/gmain.c:3978
#3  0x00007fa47ddbf99b in QEventDispatcherGlib::processEvents (this=0x7fa354000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fa47dd680db in QEventLoop::exec (this=this@entry=0x7fa3e7051b20, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007fa47dba0021 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007fa47dba11a2 in QThreadPrivate::start (arg=0x55d71d927f20) at thread/qthread_unix.cpp:360
#7  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#8  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fa405ffb700 (LWP 3291)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fa405ffaa18) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7fa405ffa9c8, cond=0x7fa405ffa9f0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7fa405ffa9f0, mutex=0x7fa405ffa9c8) at pthread_cond_wait.c:638
#3  0x00007fa475c4c38c in base::ConditionVariable::Wait () at ./../../3rdparty/chromium/base/synchronization/condition_variable_posix.cc:75
#4  0x00007fa475c4ce60 in base::WaitableEvent::TimedWaitUntil () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:232
#5  0x00007fa475c4cf8f in base::WaitableEvent::Wait () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:155
#6  0x00007fa475c05116 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:35
#7  0x00007fa475c0832b in base::internal::SchedulerWorker::RunWorker () at ./../../3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:331
#8  0x00007fa475c08754 in base::internal::SchedulerWorker::RunDedicatedWorker () at ./../../3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:253
#9  0x00007fa475c4f2c5 in ThreadFunc () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#10 0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fa4067fc700 (LWP 3290)):
#0  0x00007fa47d7825c2 in __vsnprintf_internal (string=string@entry=0x7fa4067fb3b0 "epoll_wait: B\305\202\304\231dny deskryptor pliku", maxlen=maxlen@entry=1024, format=0x7fa472018e3d "epoll_wait", args=0x7fa4067fb7e0, mode_flags=mode_flags@entry=2) at vsnprintf.c:95
#1  0x00007fa47d81171e in ___vsnprintf_chk (s=s@entry=0x7fa4067fb3b0 "epoll_wait: B\305\202\304\231dny deskryptor pliku", maxlen=maxlen@entry=1024, flag=flag@entry=1, slen=slen@entry=18446744073709551615, format=<optimized out>, ap=<optimized out>) at vsnprintf_chk.c:34
#2  0x00007fa471ffd053 in vsnprintf (__ap=<optimized out>, __fmt=<optimized out>, __n=1024, __s=0x7fa4067fb3b0 "epoll_wait: B\305\202\304\231dny deskryptor pliku") at /usr/include/bits/stdio2.h:80
#3  evutil_vsnprintf (ap=<optimized out>, format=<optimized out>, buflen=1024, buf=0x7fa4067fb3b0 "epoll_wait: B\305\202\304\231dny deskryptor pliku") at evutil.c:1879
#4  evutil_vsnprintf (buf=0x7fa4067fb3b0 "epoll_wait: B\305\202\304\231dny deskryptor pliku", buflen=1024, format=<optimized out>, ap=<optimized out>) at evutil.c:1862
#5  0x00007fa471ff1c5a in event_logv_ (severity=severity@entry=2, errstr=0x7fa46a4d3f10 "B\305\202\304\231dny deskryptor pliku", fmt=fmt@entry=0x7fa472018e3d "epoll_wait", ap=ap@entry=0x7fa4067fb7e0) at log.c:196
#6  0x00007fa471ff4925 in event_warn (fmt=fmt@entry=0x7fa472018e3d "epoll_wait") at log.c:118
#7  0x00007fa471ff6488 in epoll_dispatch (base=0x7fa35c001d90, tv=<optimized out>) at epoll.c:471
#8  0x00007fa472006df5 in event_base_loop (base=0x7fa35c001d90, flags=1) at event.c:1998
#9  0x00007fa475c5317a in base::MessagePumpLibevent::Run () at ./../../3rdparty/chromium/base/message_loop/message_pump_libevent.cc:237
#10 0x00007fa475bdf2a7 in base::RunLoop::Run () at ./../../3rdparty/chromium/base/run_loop.cc:150
#11 base::RunLoop::Run () at ./../../3rdparty/chromium/base/run_loop.cc:121
#12 0x00007fa475c1644f in base::Thread::Run () at ./../../3rdparty/chromium/base/threading/thread.cc:251
#13 base::Thread::ThreadMain () at ./../../3rdparty/chromium/base/threading/thread.cc:333
#14 0x00007fa475c4f2c5 in ThreadFunc () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#15 0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#16 0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fa406ffd700 (LWP 3285)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fa472476fb8 <QTWTF::pageheap_memory+57592>) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7fa472476f68 <QTWTF::pageheap_memory+57512>, cond=0x7fa472476f90 <QTWTF::pageheap_memory+57552>) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7fa472476f90 <QTWTF::pageheap_memory+57552>, mutex=0x7fa472476f68 <QTWTF::pageheap_memory+57512>) at pthread_cond_wait.c:638
#3  0x00007fa47237b1fa in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fa472468ec0 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x00007fa47237b21b in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fa4077fe700 (LWP 3284)):
#0  0x00007fa47d7f8bdf in __GI___poll (fds=fds@entry=0x7fa3fc007170, nfds=nfds@entry=3, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa471c594f2 in poll (__timeout=-1, __nfds=3, __fds=0x7fa3fc007170) at /usr/include/bits/poll2.h:46
#2  poll_func (ufds=0x7fa3fc007170, nfds=3, timeout=-1, userdata=0x55d71d6e9570) at pulse/thread-mainloop.c:70
#3  0x00007fa471c4ae39 in pa_mainloop_poll (m=m@entry=0x55d71d6d70e0) at pulse/mainloop.c:824
#4  0x00007fa471c4b4bf in pa_mainloop_iterate (m=0x55d71d6d70e0, block=<optimized out>, retval=0x0) at pulse/mainloop.c:926
#5  0x00007fa471c4b570 in pa_mainloop_run (m=0x55d71d6d70e0, retval=retval@entry=0x0) at pulse/mainloop.c:945
#6  0x00007fa471c59439 in thread (userdata=0x55d71d6e9cd0) at pulse/thread-mainloop.c:101
#7  0x00007fa470123c78 in internal_thread_func (userdata=0x55d71d743e10) at pulsecore/thread-posix.c:81
#8  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fa41cff9700 (LWP 3282)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fa41cff8958) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7fa41cff8908, cond=0x7fa41cff8930) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7fa41cff8930, mutex=0x7fa41cff8908) at pthread_cond_wait.c:638
#3  0x00007fa475c4c38c in base::ConditionVariable::Wait () at ./../../3rdparty/chromium/base/synchronization/condition_variable_posix.cc:75
#4  0x00007fa475c4ce60 in base::WaitableEvent::TimedWaitUntil () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:232
#5  0x00007fa475c4cf8f in base::WaitableEvent::Wait () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:155
#6  0x00007fa475bbccce in base::MessagePumpDefault::Run () at ./../../3rdparty/chromium/base/message_loop/message_pump_default.cc:58
#7  0x00007fa475bdf2a7 in base::RunLoop::Run () at ./../../3rdparty/chromium/base/run_loop.cc:150
#8  base::RunLoop::Run () at ./../../3rdparty/chromium/base/run_loop.cc:121
#9  0x00007fa475c1644f in base::Thread::Run () at ./../../3rdparty/chromium/base/threading/thread.cc:251
#10 base::Thread::ThreadMain () at ./../../3rdparty/chromium/base/threading/thread.cc:333
#11 0x00007fa475c4f2c5 in ThreadFunc () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#12 0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#13 0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fa41d7fa700 (LWP 3281)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55d71d6aaea8) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d71d6aade8, cond=0x55d71d6aae80) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55d71d6aae80, mutex=0x55d71d6aade8) at pthread_cond_wait.c:638
#3  0x00007fa475c4c38c in base::ConditionVariable::Wait () at ./../../3rdparty/chromium/base/synchronization/condition_variable_posix.cc:75
#4  0x00007fa4766821e8 in cc::SingleThreadTaskGraphRunner::Run () at ./../../3rdparty/chromium/cc/raster/single_thread_task_graph_runner.cc:126
#5  0x00007fa475c1bb8d in base::SimpleThread::ThreadMain () at ./../../3rdparty/chromium/base/threading/simple_thread.cc:80
#6  0x00007fa475c4f2c5 in ThreadFunc () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#7  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#8  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fa41dffb700 (LWP 3267)):
#0  __lll_lock_wait_private (futex=0x7fa47d8c7310 <_IO_stdfile_2_lock>) at ./lowlevellock.c:35
#1  0x00007fa47d771b0e in buffered_vfprintf (s=s@entry=0x7fa47d8c5420 <_IO_2_1_stderr_>, format=format@entry=0x7fa472018bcc "[%s] %s\n", args=args@entry=0x7fa41dffa2b0, mode_flags=mode_flags@entry=2) at vfprintf-internal.c:2381
#2  0x00007fa47d76ea24 in __vfprintf_internal (s=0x7fa47d8c5420 <_IO_2_1_stderr_>, format=0x7fa472018bcc "[%s] %s\n", ap=ap@entry=0x7fa41dffa2b0, mode_flags=mode_flags@entry=2) at vfprintf-internal.c:1346
#3  0x00007fa47d81189f in ___fprintf_chk (fp=<optimized out>, flag=flag@entry=1, format=format@entry=0x7fa472018bcc "[%s] %s\n") at fprintf_chk.c:33
#4  0x00007fa471ff1d3e in fprintf (__fmt=<optimized out>, __stream=<optimized out>, __stream=<optimized out>, __fmt=<optimized out>) at /usr/include/bits/stdio2.h:100
#5  event_log (msg=0x7fa41dffa390 "epoll_wait: B\305\202\304\231dny deskryptor pliku", severity=2) at log.c:242
#6  event_logv_ (severity=severity@entry=2, errstr=0x7fa46a4d3f10 "B\305\202\304\231dny deskryptor pliku", fmt=fmt@entry=0x7fa472018e3d "epoll_wait", ap=ap@entry=0x7fa41dffa7c0) at log.c:207
#7  0x00007fa471ff4925 in event_warn (fmt=fmt@entry=0x7fa472018e3d "epoll_wait") at log.c:118
#8  0x00007fa471ff6488 in epoll_dispatch (base=0x7fa414001d50, tv=<optimized out>) at epoll.c:471
#9  0x00007fa472006df5 in event_base_loop (base=0x7fa414001d50, flags=2) at event.c:1998
#10 0x00007fa475c53128 in base::MessagePumpLibevent::Run () at ./../../3rdparty/chromium/base/message_loop/message_pump_libevent.cc:214
#11 0x00007fa475bdf2a7 in base::RunLoop::Run () at ./../../3rdparty/chromium/base/run_loop.cc:150
#12 base::RunLoop::Run () at ./../../3rdparty/chromium/base/run_loop.cc:121
#13 0x00007fa475126244 in content::BrowserProcessSubThread::IOThreadRun () at ../../3rdparty/chromium/content/browser/browser_process_sub_thread.cc:174
#14 0x00007fa475c165c8 in base::Thread::ThreadMain () at ./../../3rdparty/chromium/base/threading/thread.cc:333
#15 0x00007fa475c4f2c5 in ThreadFunc () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#16 0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#17 0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fa41ffff700 (LWP 3254)):
#0  __GI___libc_write (nbytes=45, buf=0x7fa41fffbd20, fd=2) at ../sysdeps/unix/sysv/linux/write.c:26
#1  __GI___libc_write (fd=2, buf=0x7fa41fffbd20, nbytes=45) at ../sysdeps/unix/sysv/linux/write.c:24
#2  0x00007fa47d7853c5 in _IO_new_file_write (f=0x7fa47d8c5420 <_IO_2_1_stderr_>, data=0x7fa41fffbd20, n=45) at fileops.c:1180
#3  0x00007fa47d784756 in new_do_write (fp=fp@entry=0x7fa47d8c5420 <_IO_2_1_stderr_>, data=data@entry=0x7fa41fffbd20 "[warn] epoll_wait: B\305\202\304\231dny deskryptor pliku\n", to_do=to_do@entry=45) at libioP.h:947
#4  0x00007fa47d785ace in _IO_new_file_xsputn (n=45, data=<optimized out>, f=<optimized out>) at fileops.c:1259
#5  _IO_new_file_xsputn (f=0x7fa47d8c5420 <_IO_2_1_stderr_>, data=<optimized out>, n=45) at fileops.c:1201
#6  0x00007fa47d7719f1 in buffered_vfprintf (s=s@entry=0x7fa47d8c5420 <_IO_2_1_stderr_>, format=format@entry=0x7fa472018bcc "[%s] %s\n", args=args@entry=0x7fa41fffe2d0, mode_flags=mode_flags@entry=2) at ../libio/libioP.h:947
#7  0x00007fa47d76ea24 in __vfprintf_internal (s=0x7fa47d8c5420 <_IO_2_1_stderr_>, format=0x7fa472018bcc "[%s] %s\n", ap=ap@entry=0x7fa41fffe2d0, mode_flags=mode_flags@entry=2) at vfprintf-internal.c:1346
#8  0x00007fa47d81189f in ___fprintf_chk (fp=<optimized out>, flag=flag@entry=1, format=format@entry=0x7fa472018bcc "[%s] %s\n") at fprintf_chk.c:33
#9  0x00007fa471ff1d3e in fprintf (__fmt=<optimized out>, __stream=<optimized out>, __stream=<optimized out>, __fmt=<optimized out>) at /usr/include/bits/stdio2.h:100
#10 event_log (msg=0x7fa41fffe3b0 "epoll_wait: B\305\202\304\231dny deskryptor pliku", severity=2) at log.c:242
#11 event_logv_ (severity=severity@entry=2, errstr=0x7fa46a4d3f10 "B\305\202\304\231dny deskryptor pliku", fmt=fmt@entry=0x7fa472018e3d "epoll_wait", ap=ap@entry=0x7fa41fffe7e0) at log.c:207
#12 0x00007fa471ff4925 in event_warn (fmt=fmt@entry=0x7fa472018e3d "epoll_wait") at log.c:118
#13 0x00007fa471ff6488 in epoll_dispatch (base=0x7fa418001d90, tv=<optimized out>) at epoll.c:471
#14 0x00007fa472006df5 in event_base_loop (base=0x7fa418001d90, flags=2) at event.c:1998
#15 0x00007fa475c53128 in base::MessagePumpLibevent::Run () at ./../../3rdparty/chromium/base/message_loop/message_pump_libevent.cc:214
#16 0x00007fa475bdf2a7 in base::RunLoop::Run () at ./../../3rdparty/chromium/base/run_loop.cc:150
#17 base::RunLoop::Run () at ./../../3rdparty/chromium/base/run_loop.cc:121
#18 0x00007fa475c1644f in base::Thread::Run () at ./../../3rdparty/chromium/base/threading/thread.cc:251
#19 base::Thread::ThreadMain () at ./../../3rdparty/chromium/base/threading/thread.cc:333
#20 0x00007fa475c4f2c5 in ThreadFunc () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#21 0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#22 0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fa436dea700 (LWP 3232)):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fa436de98e0, clockid=<optimized out>, expected=0, futex_word=0x7fa436de9a08) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
#1  __pthread_cond_wait_common (abstime=0x7fa436de98e0, clockid=<optimized out>, mutex=0x7fa436de99b8, cond=0x7fa436de99e0) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7fa436de99e0, mutex=0x7fa436de99b8, abstime=0x7fa436de98e0) at pthread_cond_wait.c:656
#3  0x00007fa475c4c486 in base::ConditionVariable::TimedWait () at ./../../3rdparty/chromium/base/synchronization/condition_variable_posix.cc:127
#4  0x00007fa475c4ce53 in base::WaitableEvent::TimedWaitUntil () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:230
#5  0x00007fa475c4cfd1 in base::WaitableEvent::TimedWait () at ./../../3rdparty/chromium/base/synchronization/waitable_event_posix.cc:162
#6  0x00007fa475c05141 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:37
#7  0x00007fa475c0832b in base::internal::SchedulerWorker::RunWorker () at ./../../3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:331
#8  0x00007fa475c086d4 in base::internal::SchedulerWorker::RunPooledWorker () at ./../../3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:229
#9  0x00007fa475c4f2c5 in ThreadFunc () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#10 0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fa4375eb700 (LWP 3231)):
#0  __strcmp_sse2_unaligned () at ../sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S:41
#1  0x00007fa47d7391c7 in transcmp (p1=0x7fa4375ea6b0, p2=0x55d71d7be530) at dcigettext.c:290
#2  0x00007fa47d7ff793 in __GI___tfind (compar=<optimized out>, vrootp=<optimized out>, key=<optimized out>) at tsearch.c:388
#3  __GI___tfind (key=key@entry=0x7fa4375ea6b0, vrootp=vrootp@entry=0x7fa47d8c66a8 <root>, compar=compar@entry=0x7fa47d7391a0 <transcmp>) at tsearch.c:372
#4  0x00007fa47d73a144 in __dcigettext (domainname=0x7fa47d88f02e <_libc_intl_domainname> "libc", msgid1=0x7fa47d88f4bf "Bad file descriptor", msgid2=msgid2@entry=0x0, plural=plural@entry=0, n=n@entry=0, category=category@entry=5) at dcigettext.c:570
#5  0x00007fa47d738f8f in __GI___dcgettext (domainname=<optimized out>, msgid=<optimized out>, category=category@entry=5) at dcgettext.c:47
#6  0x00007fa47d792dee in __GI___strerror_r (errnum=errnum@entry=9, buf=buf@entry=0x0, buflen=buflen@entry=0) at _strerror.c:71
#7  0x00007fa47d792d0f in strerror (errnum=9) at strerror.c:31
#8  0x00007fa471ff4912 in event_warn (fmt=fmt@entry=0x7fa472018e3d "epoll_wait") at log.c:118
#9  0x00007fa471ff6488 in epoll_dispatch (base=0x7fa430001ee0, tv=<optimized out>) at epoll.c:471
#10 0x00007fa472006df5 in event_base_loop (base=0x7fa430001ee0, flags=2) at event.c:1998
#11 0x00007fa475c53128 in base::MessagePumpLibevent::Run () at ./../../3rdparty/chromium/base/message_loop/message_pump_libevent.cc:214
#12 0x00007fa475bdf2a7 in base::RunLoop::Run () at ./../../3rdparty/chromium/base/run_loop.cc:150
#13 base::RunLoop::Run () at ./../../3rdparty/chromium/base/run_loop.cc:121
#14 0x00007fa475c0e2f4 in base::internal::ServiceThread::Run () at ./../../3rdparty/chromium/base/task/task_scheduler/service_thread.cc:61
#15 0x00007fa475c165c8 in base::Thread::ThreadMain () at ./../../3rdparty/chromium/base/threading/thread.cc:333
#16 0x00007fa475c4f2c5 in ThreadFunc () at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#17 0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#18 0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fa458df5700 (LWP 3219)):
#0  0x00007fa47d7f8bdf in __GI___poll (fds=0x7fa43c00e860, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa47bd3e2ae in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fa43c00e860, timeout=<optimized out>, context=0x7fa43c000c30) at ../glib/gmain.c:4216
#2  g_main_context_iterate (context=context@entry=0x7fa43c000c30, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3912
#3  0x00007fa47bd3e3cf in g_main_context_iteration (context=0x7fa43c000c30, may_block=may_block@entry=1) at ../glib/gmain.c:3978
#4  0x00007fa47ddbf99b in QEventDispatcherGlib::processEvents (this=0x7fa43c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fa47dd680db in QEventLoop::exec (this=this@entry=0x7fa458df4af0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007fa47dba0021 in QThread::exec (this=this@entry=0x7fa47d275d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007fa47d1f34f6 in QDBusConnectionManager::run (this=0x7fa47d275d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#8  0x00007fa47dba11a2 in QThreadPrivate::start (arg=0x7fa47d275d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:360
#9  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fa4595f6700 (LWP 3218)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55d71d55ca28) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d71d55c9d8, cond=0x55d71d55ca00) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55d71d55ca00, mutex=0x55d71d55c9d8) at pthread_cond_wait.c:638
#3  0x00007fa469824b8b in cnd_wait (mtx=0x55d71d55c9d8, cond=0x55d71d55ca00) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=<optimized out>) at ../src/util/u_queue.c:272
#5  0x00007fa469824a37 in impl_thrd_routine.lto_priv.4.lto_priv () at ../src/util/u_cpu_detect.c:508
#6  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#7  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fa459ffb700 (LWP 3217)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55d71d16d890) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d71d16d840, cond=0x55d71d16d868) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55d71d16d868, mutex=0x55d71d16d840) at pthread_cond_wait.c:638
#3  0x00007fa469824b8b in cnd_wait (mtx=0x55d71d16d840, cond=0x55d71d16d868) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=<optimized out>) at ../src/util/u_queue.c:272
#5  0x00007fa469824a37 in impl_thrd_routine.lto_priv.4.lto_priv () at ../src/util/u_cpu_detect.c:508
#6  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#7  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fa45a7fc700 (LWP 3216)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55d71d16d890) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d71d16d840, cond=0x55d71d16d868) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55d71d16d868, mutex=0x55d71d16d840) at pthread_cond_wait.c:638
#3  0x00007fa469824b8b in cnd_wait (mtx=0x55d71d16d840, cond=0x55d71d16d868) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=<optimized out>) at ../src/util/u_queue.c:272
#5  0x00007fa469824a37 in impl_thrd_routine.lto_priv.4.lto_priv () at ../src/util/u_cpu_detect.c:508
#6  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#7  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fa45affd700 (LWP 3215)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55d71d16d310) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d71d16d2c0, cond=0x55d71d16d2e8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55d71d16d2e8, mutex=0x55d71d16d2c0) at pthread_cond_wait.c:638
#3  0x00007fa469824b8b in cnd_wait (mtx=0x55d71d16d2c0, cond=0x55d71d16d2e8) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=<optimized out>) at ../src/util/u_queue.c:272
#5  0x00007fa469824a37 in impl_thrd_routine.lto_priv.4.lto_priv () at ../src/util/u_cpu_detect.c:508
#6  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#7  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fa45b7fe700 (LWP 3214)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55d71d16d310) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d71d16d2c0, cond=0x55d71d16d2e8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55d71d16d2e8, mutex=0x55d71d16d2c0) at pthread_cond_wait.c:638
#3  0x00007fa469824b8b in cnd_wait (mtx=0x55d71d16d2c0, cond=0x55d71d16d2e8) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=<optimized out>) at ../src/util/u_queue.c:272
#5  0x00007fa469824a37 in impl_thrd_routine.lto_priv.4.lto_priv () at ../src/util/u_cpu_detect.c:508
#6  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#7  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fa45bfff700 (LWP 3213)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55d71d16d310) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d71d16d2c0, cond=0x55d71d16d2e8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55d71d16d2e8, mutex=0x55d71d16d2c0) at pthread_cond_wait.c:638
#3  0x00007fa469824b8b in cnd_wait (mtx=0x55d71d16d2c0, cond=0x55d71d16d2e8) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=<optimized out>) at ../src/util/u_queue.c:272
#5  0x00007fa469824a37 in impl_thrd_routine.lto_priv.4.lto_priv () at ../src/util/u_cpu_detect.c:508
#6  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#7  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fa4689db700 (LWP 3212)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55d71d0ce328) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d71d0ce2d8, cond=0x55d71d0ce300) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55d71d0ce300, mutex=0x55d71d0ce2d8) at pthread_cond_wait.c:638
#3  0x00007fa469824b8b in cnd_wait (mtx=0x55d71d0ce2d8, cond=0x55d71d0ce300) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=<optimized out>) at ../src/util/u_queue.c:272
#5  0x00007fa469824a37 in impl_thrd_routine.lto_priv.4.lto_priv () at ../src/util/u_cpu_detect.c:508
#6  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#7  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fa46935b700 (LWP 3211)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55d71d16bf68) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d71d16bf18, cond=0x55d71d16bf40) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55d71d16bf40, mutex=0x55d71d16bf18) at pthread_cond_wait.c:638
#3  0x00007fa469824b8b in cnd_wait (mtx=0x55d71d16bf18, cond=0x55d71d16bf40) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=<optimized out>) at ../src/util/u_queue.c:272
#5  0x00007fa469824a37 in impl_thrd_routine.lto_priv.4.lto_priv () at ../src/util/u_cpu_detect.c:508
#6  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#7  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fa46b4ab700 (LWP 3166)):
#0  0x00007fa47d7f8bdf in __GI___poll (fds=fds@entry=0x7fa46b4aaa28, nfds=nfds@entry=1, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa47c7e1742 in poll (__timeout=-1, __nfds=1, __fds=0x7fa46b4aaa28) at /usr/include/bits/poll2.h:46
#2  _xcb_conn_wait (cond=<optimized out>, count=<optimized out>, vector=<optimized out>, c=<optimized out>) at xcb_conn.c:479
#3  _xcb_conn_wait (c=0x55d71cffc1e0, cond=<optimized out>, vector=0x0, count=0x0) at xcb_conn.c:435
#4  0x00007fa47c7e23fa in xcb_wait_for_event (c=c@entry=0x55d71cffc1e0) at xcb_in.c:697
#5  0x00007fa46b66ef90 in QXcbEventQueue::run (this=0x55d71d011900) at qxcbeventqueue.cpp:228
#6  0x00007fa47dba11a2 in QThreadPrivate::start (arg=0x55d71d011900) at thread/qthread_unix.cpp:360
#7  0x00007fa47c79cf2a in start_thread (arg=<optimized out>) at pthread_create.c:479
#8  0x00007fa47d8034af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fa47cf5af80 (LWP 3162)):
[KCrash Handler]
#7  std::__atomic_base<int>::operator++ (this=0x3ad00000777) at /usr/include/c++/9/bits/atomic_base.h:318
#8  QAtomicOps<int>::ref<int> (_q_value=...) at /usr/include/qt5/QtCore/qatomic_cxx11.h:265
#9  QBasicAtomicInteger<int>::ref (this=0x3ad00000777) at /usr/include/qt5/QtCore/qbasicatomic.h:114
#10 QSharedDataPointer<Akonadi::ItemPrivate>::QSharedDataPointer (o=..., this=0x7ffe948075a0) at /usr/include/qt5/QtCore/qshareddata.h:92
#11 Akonadi::Item::Item (this=0x7ffe948075a0, other=...) at /usr/src/debug/akonadi-server-19.08.2-1.1.x86_64/src/core/item.cpp:162
#12 0x00007fa405642bb3 in QVector<Akonadi::Item>::append (this=this@entry=0x7ffe948075e0, t=...) at /usr/include/c++/9/new:174
#13 0x00007fa405662735 in Akonadi::IncidenceChanger::deleteIncidence (this=0x55d720949480, item=..., parent=parent@entry=0x55d7214b5600) at /usr/src/debug/akonadi-calendar-19.08.2-1.1.x86_64/src/incidencechanger.cpp:773
#14 0x00007fa407f49446 in CalendarView::deleteIncidence (this=0x55d7214b5600, item=..., force=force@entry=false) at /usr/src/debug/korganizer-19.08.2-1.1.x86_64/src/calendarview.cpp:2435
#15 0x00007fa407f06390 in CalendarView::qt_static_metacall (_o=0x55d7214b5600, _c=<optimized out>, _id=<optimized out>, _a=0x7ffe948078a0) at /usr/src/debug/korganizer-19.08.2-1.1.x86_64/build/src/korganizerprivate_autogen/EWIEGA46WW/moc_calendarview.cpp:777
#16 0x00007fa47dd944d8 in QMetaObject::activate (sender=0x55d7216f5730, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3809
#17 0x00007fa41c1c1735 in KOrg::BaseView::deleteIncidenceSignal (this=<optimized out>, _t1=...) at /usr/src/debug/korganizer-19.08.2-1.1.x86_64/build/src/interfaces/korganizer/korganizer_interfaces_autogen/EWIEGA46WW/moc_baseview.cpp:561
#18 0x00007fa47dd94638 in QtPrivate::QSlotObjectBase::call (a=0x7ffe948079c0, r=0x55d7216f5730, this=0x55d720a5a030) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#19 QMetaObject::activate (sender=0x55d720ea7ae0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3789
#20 0x00007fa3e41985a5 in EventViews::EventView::deleteIncidenceSignal (this=<optimized out>, _t1=...) at /usr/src/debug/eventviews-19.08.2-1.1.x86_64/build/src/KF5EventViews_autogen/EWIEGA46WW/moc_eventview.cpp:578
#21 0x00007fa47dd94638 in QtPrivate::QSlotObjectBase::call (a=0x7ffe94807ae0, r=0x55d720ea7ae0, this=0x55d720f51680) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#22 QMetaObject::activate (sender=0x55d720e9ee80, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3789
#23 0x00007fa3e4198935 in EventViews::JournalDateView::deleteIncidence (this=<optimized out>, _t1=...) at /usr/src/debug/eventviews-19.08.2-1.1.x86_64/build/src/KF5EventViews_autogen/OACYBQOQJE/moc_journalframe.cpp:575
#24 0x00007fa47dd94638 in QtPrivate::QSlotObjectBase::call (a=0x7ffe94807c00, r=0x55d720e9ee80, this=0x55d720dd6310) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#25 QMetaObject::activate (sender=0x55d721b83320, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3789
#26 0x00007fa3e41987e5 in EventViews::JournalFrame::deleteIncidence (this=<optimized out>, _t1=...) at /usr/src/debug/eventviews-19.08.2-1.1.x86_64/build/src/KF5EventViews_autogen/OACYBQOQJE/moc_journalframe.cpp:254
#27 0x00007fa47dd94638 in QtPrivate::QSlotObjectBase::call (a=0x7ffe94807cd0, r=0x55d721b83320, this=0x55d721c35c80) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#28 QMetaObject::activate (sender=0x55d720fbd3c0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3789
#29 0x00007fa47e89aacd in QAbstractButtonPrivate::emitPressed (this=0x55d721630cf0) at widgets/qabstractbutton.cpp:428
#30 0x00007fa47e89b1ad in QAbstractButton::mousePressEvent (this=0x55d720fbd3c0, e=0x7ffe94808230) at widgets/qabstractbutton.cpp:983
#31 0x00007fa47e7e8b1c in QWidget::event (this=0x55d720fbd3c0, event=0x7ffe94808230) at kernel/qwidget.cpp:8955
#32 0x00007fa47e7a5c62 in QApplicationPrivate::notify_helper (this=this@entry=0x55d71cfe7480, receiver=receiver@entry=0x55d720fbd3c0, e=e@entry=0x7ffe94808230) at kernel/qapplication.cpp:3703
#33 0x00007fa47e7af433 in QApplication::notify (this=<optimized out>, receiver=0x55d720fbd3c0, e=0x7ffe94808230) at kernel/qapplication.cpp:3163
#34 0x00007fa47dd69572 in QCoreApplication::notifyInternal2 (receiver=0x55d720fbd3c0, event=0x7ffe94808230) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:143
#35 0x00007fa47e7ae543 in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x55d720fbd3c0, event=event@entry=0x7ffe94808230, alienWidget=alienWidget@entry=0x55d720fbd3c0, nativeWidget=0x55d7203c2680, buttonDown=buttonDown@entry=0x7fa47eccf8d0 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2649
#36 0x00007fa47e803ac9 in QWidgetWindow::handleMouseEvent (this=0x55d721654eb0, event=0x7ffe948086b0) at /usr/include/c++/9/bits/atomic_base.h:413
#37 0x00007fa47e806b24 in QWidgetWindow::event (event=0x7ffe948086b0, this=0x55d721654eb0) at kernel/qwidgetwindow.cpp:280
#38 QWidgetWindow::event (this=0x55d721654eb0, event=0x7ffe948086b0) at kernel/qwidgetwindow.cpp:224
#39 0x00007fa47e7a5c62 in QApplicationPrivate::notify_helper (this=this@entry=0x55d71cfe7480, receiver=receiver@entry=0x55d721654eb0, e=e@entry=0x7ffe948086b0) at kernel/qapplication.cpp:3703
#40 0x00007fa47e7af1e0 in QApplication::notify (this=0x7ffe94808b80, receiver=0x55d721654eb0, e=0x7ffe948086b0) at kernel/qapplication.cpp:3449
#41 0x00007fa47dd69572 in QCoreApplication::notifyInternal2 (receiver=0x55d721654eb0, event=0x7ffe948086b0) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:143
#42 0x00007fa47e16ca18 in QGuiApplicationPrivate::processMouseEvent (e=e@entry=0x55d721663e90) at kernel/qguiapplication.cpp:2111
#43 0x00007fa47e16e28b in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x55d721663e90) at kernel/qguiapplication.cpp:1846
#44 0x00007fa47e14925b in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1148
#45 0x00007fa46b66ff4a in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#46 0x00007fa47bd3e0bd in g_main_dispatch (context=0x7fa464005010) at ../glib/gmain.c:3179
#47 g_main_context_dispatch (context=context@entry=0x7fa464005010) at ../glib/gmain.c:3844
#48 0x00007fa47bd3e340 in g_main_context_iterate (context=context@entry=0x7fa464005010, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3917
#49 0x00007fa47bd3e3cf in g_main_context_iteration (context=0x7fa464005010, may_block=may_block@entry=1) at ../glib/gmain.c:3978
#50 0x00007fa47ddbf981 in QEventDispatcherGlib::processEvents (this=0x55d71d0cbf20, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#51 0x00007fa47dd680db in QEventLoop::exec (this=this@entry=0x7ffe94808a50, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#52 0x00007fa47dd6fd42 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#53 0x000055d71cd9a6fa in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kontact-19.08.2-1.1.x86_64/src/main.cpp:229
[Inferior 1 (process 3162) detached]

Possible duplicates by query: bug 412390, bug 411883, bug 388648.

Reported using DrKonqi