Bug 373129

Summary: Kontact crashed when closing after tryong to accept an ics invitation
Product: [Applications] kontact Reporter: quazgar <quazgar>
Component: generalAssignee: kdepim bugs <kdepim-bugs>
Status: RESOLVED WORKSFORME    
Severity: crash CC: justin.zobel
Priority: NOR Keywords: drkonqi
Version: 5.2.3   
Target Milestone: ---   
Platform: Debian testing   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description quazgar 2016-12-01 08:13:36 UTC 
Application: kontact (5.2.3)

Qt Version: 5.7.1
Frameworks Version: 5.27.0
Operating System: Linux 4.7.0-1-amd64 x86_64
Distribution: Debian GNU/Linux testing (stretch)

-- Information about the crash:
- What I was doing when the application crashed:
I received an ics invitation via KMail and clicked on the "Accept" button in the mail window. Nothing seemd to happen, so I switched to the calendar tab, but the event had not appeared there. After that I switched back to the KMail tab, then closed Kontact to restart Akonadi (this sometimes helped with other problems before). Upon closing Kontact, I received the KDE crash report.

When trying again (after restarting Akonadi), accepting the ics event worked on the second attempt.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3fcaffd940 (LWP 20989))]

Thread 17 (Thread 0x7f3efe876700 (LWP 21691)):
#0  0x00007fff9aff6c33 in clock_gettime ()
#1  0x00007f3fe174b886 in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7f3efe8759e0) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f3fe20e0001 in qt_gettime() (ts=0x7f3efe8759e0, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:109
#3  0x00007f3fe20e0001 in qt_gettime() (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:164
#4  0x00007f3fe20e0001 in qt_gettime() () at tools/qelapsedtimer_unix.cpp:173
#5  0x00007f3fe2268379 in QTimerInfoList::updateCurrentTime() (this=this@entry=0x7f3ef4002cd0) at kernel/qtimerinfo_unix.cpp:91
#6  0x00007f3fe2268925 in QTimerInfoList::timerWait(timespec&) (this=0x7f3ef4002cd0, tm=...) at kernel/qtimerinfo_unix.cpp:388
#7  0x00007f3fe2269cce in timerSourcePrepare(GSource*, gint*) (timeout=0x7f3efe875ab4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:132
#8  0x00007f3fe2269cce in timerSourcePrepare(GSource*, gint*) (source=<optimized out>, timeout=timeout@entry=0x7f3efe875ab4) at kernel/qeventdispatcher_glib.cpp:165
#9  0x00007f3fd9a27edd in g_main_context_prepare (context=context@entry=0x7f3ef40009b0, priority=priority@entry=0x7f3efe875b40) at ././glib/gmain.c:3501
#10 0x00007f3fd9a2891b in g_main_context_iterate (context=context@entry=0x7f3ef40009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3909
#11 0x00007f3fd9a28b0c in g_main_context_iteration (context=0x7f3ef40009b0, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#12 0x00007f3fe226a6fb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3ef40008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#13 0x00007f3fe221407a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3efe875c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#14 0x00007f3fe20360d3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#15 0x00007f3fe203ad88 in QThreadPrivate::start(void*) (arg=0x55a499096370) at thread/qthread_unix.cpp:368
#16 0x00007f3fdb697464 in start_thread (arg=0x7f3efe876700) at pthread_create.c:333
#17 0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 16 (Thread 0x7f3eff077700 (LWP 21689)):
#0  0x00007f3fdb69ff9c in __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f3fdb699c36 in __GI___pthread_mutex_lock (mutex=0x7f3fdaeec2b0) at ../nptl/pthread_mutex_lock.c:115
#2  0x00007f3fdac6881c in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#3  0x00007f3fdac6d741 in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#4  0x00007f3fdac6dc58 in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#5  0x00007f3fd2ba9102 in  () at /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.367.57
#6  0x00007f3fd9a6cc40 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f3eff076a60, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#7  0x00007f3fd9a6cc40 in g_wakeup_acknowledge (wakeup=0x7f3ef8002730) at ././glib/gwakeup.c:210
#8  0x00007f3fd9a284be in g_main_context_check (context=context@entry=0x7f3ef00009b0, max_priority=2147483647, fds=fds@entry=0x7f3ef00013c0, n_fds=n_fds@entry=1) at ././glib/gmain.c:3707
#9  0x00007f3fd9a28994 in g_main_context_iterate (context=context@entry=0x7f3ef00009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3926
#10 0x00007f3fd9a28b0c in g_main_context_iteration (context=0x7f3ef00009b0, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#11 0x00007f3fe226a6fb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3ef00008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#12 0x00007f3fe221407a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3eff076c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#13 0x00007f3fe20360d3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#14 0x00007f3fe203ad88 in QThreadPrivate::start(void*) (arg=0x55a4993ee390) at thread/qthread_unix.cpp:368
#15 0x00007f3fdb697464 in start_thread (arg=0x7f3eff077700) at pthread_create.c:333
#16 0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 15 (Thread 0x7f3eff878700 (LWP 21687)):
#0  0x00007f3fd9a6e004 in g_mutex_unlock (mutex=0x7f3ef80009b0) at ././glib/gthread-posix.c:1348
#1  0x00007f3fd9a283f1 in g_main_context_check (context=context@entry=0x7f3ef80009b0, max_priority=2147483647, fds=fds@entry=0x7f3ef80013c0, n_fds=n_fds@entry=1) at ././glib/gmain.c:3760
#2  0x00007f3fd9a28994 in g_main_context_iterate (context=context@entry=0x7f3ef80009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3926
#3  0x00007f3fd9a28b0c in g_main_context_iteration (context=0x7f3ef80009b0, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#4  0x00007f3fe226a6fb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3ef80008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f3fe221407a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3eff877c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007f3fe20360d3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#7  0x00007f3fe203ad88 in QThreadPrivate::start(void*) (arg=0x55a498fed080) at thread/qthread_unix.cpp:368
#8  0x00007f3fdb697464 in start_thread (arg=0x7f3eff878700) at pthread_create.c:333
#9  0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 14 (Thread 0x7f3f15ffb700 (LWP 21190)):
#0  0x00007f3fd9a6dfe9 in g_mutex_lock (mutex=mutex@entry=0x7f3f040009b0) at ././glib/gthread-posix.c:1336
#1  0x00007f3fd9a27a04 in g_main_context_release (context=0x7f3f040009b0) at ././glib/gmain.c:3303
#2  0x00007f3fd9a289aa in g_main_context_iterate (context=context@entry=0x7f3f040009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3931
#3  0x00007f3fd9a28b0c in g_main_context_iteration (context=0x7f3f040009b0, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#4  0x00007f3fe226a6fb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3f040008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f3fe221407a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3f15ffac80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007f3fe20360d3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#7  0x00007f3fe203ad88 in QThreadPrivate::start(void*) (arg=0x55a499132560) at thread/qthread_unix.cpp:368
#8  0x00007f3fdb697464 in start_thread (arg=0x7f3f15ffb700) at pthread_create.c:333
#9  0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 13 (Thread 0x7f3f167fc700 (LWP 21181)):
#0  0x00007f3fdb69ff9c in __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f3fdb699c36 in __GI___pthread_mutex_lock (mutex=0x7f3fdaeec2b0) at ../nptl/pthread_mutex_lock.c:115
#2  0x00007f3fdac6881c in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#3  0x00007f3fdac6d741 in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#4  0x00007f3fdac6dc58 in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#5  0x00007f3fd2ba9102 in  () at /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.367.57
#6  0x00007f3fd9a6cc40 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f3f167fba60, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#7  0x00007f3fd9a6cc40 in g_wakeup_acknowledge (wakeup=0x7f3f0c002780) at ././glib/gwakeup.c:210
#8  0x00007f3fd9a284be in g_main_context_check (context=context@entry=0x7f3f000009b0, max_priority=2147483647, fds=fds@entry=0x7f3f000013c0, n_fds=n_fds@entry=1) at ././glib/gmain.c:3707
#9  0x00007f3fd9a28994 in g_main_context_iterate (context=context@entry=0x7f3f000009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3926
#10 0x00007f3fd9a28b0c in g_main_context_iteration (context=0x7f3f000009b0, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#11 0x00007f3fe226a6fb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3f000008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#12 0x00007f3fe221407a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3f167fbc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#13 0x00007f3fe20360d3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#14 0x00007f3fe203ad88 in QThreadPrivate::start(void*) (arg=0x55a498dd1b50) at thread/qthread_unix.cpp:368
#15 0x00007f3fdb697464 in start_thread (arg=0x7f3f167fc700) at pthread_create.c:333
#16 0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 12 (Thread 0x7f3f263d0700 (LWP 21089)):
#0  0x00007f3fe17315dd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f3fd2ba9073 in  () at /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.367.57
#2  0x00007f3fd9a6cc40 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f3f263cfa60, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#3  0x00007f3fd9a6cc40 in g_wakeup_acknowledge (wakeup=0x7f3f180021c0) at ././glib/gwakeup.c:210
#4  0x00007f3fd9a284be in g_main_context_check (context=context@entry=0x7f3f1c0009b0, max_priority=2147483647, fds=fds@entry=0x7f3f1c0013c0, n_fds=n_fds@entry=1) at ././glib/gmain.c:3707
#5  0x00007f3fd9a28994 in g_main_context_iterate (context=context@entry=0x7f3f1c0009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3926
#6  0x00007f3fd9a28b0c in g_main_context_iteration (context=0x7f3f1c0009b0, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#7  0x00007f3fe226a6fb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3f1c0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#8  0x00007f3fe221407a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3f263cfc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#9  0x00007f3fe20360d3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#10 0x00007f3fe203ad88 in QThreadPrivate::start(void*) (arg=0x55a498996f60) at thread/qthread_unix.cpp:368
#11 0x00007f3fdb697464 in start_thread (arg=0x7f3f263d0700) at pthread_create.c:333
#12 0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 11 (Thread 0x7f3f3ffff700 (LWP 21075)):
#0  0x00007f3fe17315dd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f3fd2ba9073 in  () at /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.367.57
#2  0x00007f3fd9a6cc40 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f3f3fffea60, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#3  0x00007f3fd9a6cc40 in g_wakeup_acknowledge (wakeup=0x7f3f44002360) at ././glib/gwakeup.c:210
#4  0x00007f3fd9a284be in g_main_context_check (context=context@entry=0x7f3f380009b0, max_priority=2147483647, fds=fds@entry=0x7f3f380013c0, n_fds=n_fds@entry=1) at ././glib/gmain.c:3707
#5  0x00007f3fd9a28994 in g_main_context_iterate (context=context@entry=0x7f3f380009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3926
#6  0x00007f3fd9a28b0c in g_main_context_iteration (context=0x7f3f380009b0, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#7  0x00007f3fe226a6fb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3f380008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#8  0x00007f3fe221407a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3f3fffec80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#9  0x00007f3fe20360d3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#10 0x00007f3fe203ad88 in QThreadPrivate::start(void*) (arg=0x55a4986114b0) at thread/qthread_unix.cpp:368
#11 0x00007f3fdb697464 in start_thread (arg=0x7f3f3ffff700) at pthread_create.c:333
#12 0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 10 (Thread 0x7f3f4d6fd700 (LWP 21050)):
#0  0x00007f3fdb69ff9c in __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f3fdb699c36 in __GI___pthread_mutex_lock (mutex=0x7f3fdaeec2b0) at ../nptl/pthread_mutex_lock.c:115
#2  0x00007f3fdac6881c in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#3  0x00007f3fdac6d741 in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#4  0x00007f3fdac6dbfb in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#5  0x00007f3fd2ba90f1 in  () at /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.367.57
#6  0x00007f3fd9a6cc40 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f3f4d6fca60, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#7  0x00007f3fd9a6cc40 in g_wakeup_acknowledge (wakeup=0x7f3f48002780) at ././glib/gwakeup.c:210
#8  0x00007f3fd9a284be in g_main_context_check (context=context@entry=0x7f3f400009b0, max_priority=2147483647, fds=fds@entry=0x7f3f400013c0, n_fds=n_fds@entry=1) at ././glib/gmain.c:3707
#9  0x00007f3fd9a28994 in g_main_context_iterate (context=context@entry=0x7f3f400009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3926
#10 0x00007f3fd9a28b0c in g_main_context_iteration (context=0x7f3f400009b0, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#11 0x00007f3fe226a6fb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3f400008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#12 0x00007f3fe221407a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3f4d6fcc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#13 0x00007f3fe20360d3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#14 0x00007f3fe203ad88 in QThreadPrivate::start(void*) (arg=0x55a498643860) at thread/qthread_unix.cpp:368
#15 0x00007f3fdb697464 in start_thread (arg=0x7f3f4d6fd700) at pthread_create.c:333
#16 0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 9 (Thread 0x7f3f667fa700 (LWP 21017)):
#0  0x00007f3fdb69d18f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f3fdf411223 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f3fdf739191 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f3fdb697464 in start_thread (arg=0x7f3f667fa700) at pthread_create.c:333
#4  0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 8 (Thread 0x7f3f66ffb700 (LWP 21016)):
#0  0x00007f3fdb69d18f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f3fdf411223 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f3fdf739191 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f3fdb697464 in start_thread (arg=0x7f3f66ffb700) at pthread_create.c:333
#4  0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 7 (Thread 0x7f3f677fc700 (LWP 21015)):
#0  0x00007f3fdb69d18f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f3fdf411223 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f3fdf739191 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f3fdb697464 in start_thread (arg=0x7f3f677fc700) at pthread_create.c:333
#4  0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 6 (Thread 0x7f3f67ffd700 (LWP 21014)):
#0  0x00007f3fdb69d18f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f3fdf410101 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f3fdf739191 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f3fdb697464 in start_thread (arg=0x7f3f67ffd700) at pthread_create.c:333
#4  0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 5 (Thread 0x7f3fb5948700 (LWP 21013)):
#0  0x00007f3fdb69ff9c in __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f3fdb699c36 in __GI___pthread_mutex_lock (mutex=0x7f3fdaeec2b0) at ../nptl/pthread_mutex_lock.c:115
#2  0x00007f3fdac6881c in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#3  0x00007f3fdac6d741 in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#4  0x00007f3fdac6dbfb in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#5  0x00007f3fd2ba90f1 in  () at /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.367.57
#6  0x00007f3fd9a6cc40 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f3fb5947a60, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#7  0x00007f3fd9a6cc40 in g_wakeup_acknowledge (wakeup=0x7f3fb00025a0) at ././glib/gwakeup.c:210
#8  0x00007f3fd9a284be in g_main_context_check (context=context@entry=0x7f3fac0009b0, max_priority=2147483647, fds=fds@entry=0x7f3fac0013c0, n_fds=n_fds@entry=1) at ././glib/gmain.c:3707
#9  0x00007f3fd9a28994 in g_main_context_iterate (context=context@entry=0x7f3fac0009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3926
#10 0x00007f3fd9a28b0c in g_main_context_iteration (context=0x7f3fac0009b0, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#11 0x00007f3fe226a6fb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3fac0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#12 0x00007f3fe221407a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3fb5947c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#13 0x00007f3fe20360d3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#14 0x00007f3fe203ad88 in QThreadPrivate::start(void*) (arg=0x55a4983d1230) at thread/qthread_unix.cpp:368
#15 0x00007f3fdb697464 in start_thread (arg=0x7f3fb5948700) at pthread_create.c:333
#16 0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 4 (Thread 0x7f3fb62a9700 (LWP 20992)):
#0  0x00007f3fdb69d18f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f3fdf70846b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f3fdf7084a9 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f3fdb697464 in start_thread (arg=0x7f3fb62a9700) at pthread_create.c:333
#4  0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7f3fb74ba700 (LWP 20991)):
#0  0x00007f3fdb69ff9c in __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f3fdb699c36 in __GI___pthread_mutex_lock (mutex=0x7f3fdaeec2b0) at ../nptl/pthread_mutex_lock.c:115
#2  0x00007f3fdac6881c in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#3  0x00007f3fdac6d741 in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#4  0x00007f3fdac6dbfb in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#5  0x00007f3fd2ba90f1 in  () at /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.367.57
#6  0x00007f3fd9a6cc40 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f3fb74b9a30, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#7  0x00007f3fd9a6cc40 in g_wakeup_acknowledge (wakeup=0x7f3fbc0015b0) at ././glib/gwakeup.c:210
#8  0x00007f3fd9a284be in g_main_context_check (context=context@entry=0x7f3fb00009b0, max_priority=2147483647, fds=fds@entry=0x7f3fb0031a60, n_fds=n_fds@entry=1) at ././glib/gmain.c:3707
#9  0x00007f3fd9a28994 in g_main_context_iterate (context=context@entry=0x7f3fb00009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3926
#10 0x00007f3fd9a28b0c in g_main_context_iteration (context=0x7f3fb00009b0, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#11 0x00007f3fe226a6fb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3fb00008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#12 0x00007f3fe221407a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3fb74b9c50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#13 0x00007f3fe20360d3 in QThread::exec() (this=this@entry=0x7f3fe453ed60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:507
#14 0x00007f3fe44c96d5 in QDBusConnectionManager::run() (this=0x7f3fe453ed60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#15 0x00007f3fe203ad88 in QThreadPrivate::start(void*) (arg=0x7f3fe453ed60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:368
#16 0x00007f3fdb697464 in start_thread (arg=0x7f3fb74ba700) at pthread_create.c:333
#17 0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7f3fc1002700 (LWP 20990)):
#0  0x00007f3fe173556d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f3fdbcc5150 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f3fdbcc6ee9 in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f3fc398fb69 in QXcbEventReader::run() (this=0x55a4981b7b90) at qxcbconnection.cpp:1343
#4  0x00007f3fe203ad88 in QThreadPrivate::start(void*) (arg=0x55a4981b7b90) at thread/qthread_unix.cpp:368
#5  0x00007f3fdb697464 in start_thread (arg=0x7f3fc1002700) at pthread_create.c:333
#6  0x00007f3fe173e9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7f3fcaffd940 (LWP 20989)):
[KCrash Handler]
#6  0x00007f3fd905ba40 in KMime::Content::parent() const () at /usr/lib/x86_64-linux-gnu/libKF5Mime.so.5
#7  0x00007f3fd905ba73 in KMime::Content::topLevel() const () at /usr/lib/x86_64-linux-gnu/libKF5Mime.so.5
#8  0x00007f3f14da83c2 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/messageviewer_bodypartformatter_text_calendar.so
#9  0x00007f3f14dac9d7 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/messageviewer_bodypartformatter_text_calendar.so
#10 0x00007f3f14daebe4 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/messageviewer_bodypartformatter_text_calendar.so
#11 0x00007f3f14db0515 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/messageviewer_bodypartformatter_text_calendar.so
#12 0x00007f3f4fd0c408 in  () at /usr/lib/x86_64-linux-gnu/libKF5MessageViewer.so.5
#13 0x00007f3f4fd0a388 in  () at /usr/lib/x86_64-linux-gnu/libKF5MessageViewer.so.5
#14 0x00007f3f4fcea330 in  () at /usr/lib/x86_64-linux-gnu/libKF5MessageViewer.so.5
#15 0x00007f3fe2242b39 in QObject::event(QEvent*) (this=0x55a498757e60, e=<optimized out>) at kernel/qobject.cpp:1263
#16 0x00007f3fe2d4eb2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x55a498757e60, e=0x55a499092830) at kernel/qapplication.cpp:3799
#17 0x00007f3fe2d562e1 in QApplication::notify(QObject*, QEvent*) (this=0x7fff9afeeab0, receiver=0x55a498757e60, e=0x55a499092830) at kernel/qapplication.cpp:3556
#18 0x00007f3fe2216090 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55a498757e60, event=event@entry=0x55a499092830) at kernel/qcoreapplication.cpp:988
#19 0x00007f3fe221881d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (event=0x55a499092830, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#20 0x00007f3fe221881d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x55a4981883f0) at kernel/qcoreapplication.cpp:1649
#21 0x00007f3fe2218c88 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1503
#22 0x00007f3fe226a2d3 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x55a4981f9c00) at kernel/qeventdispatcher_glib.cpp:276
#23 0x00007f3fd9a287f7 in g_main_context_dispatch (context=0x7f3fbc001710) at ././glib/gmain.c:3203
#24 0x00007f3fd9a287f7 in g_main_context_dispatch (context=context@entry=0x7f3fbc001710) at ././glib/gmain.c:3856
#25 0x00007f3fd9a28a60 in g_main_context_iterate (context=context@entry=0x7f3fbc001710, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3929
#26 0x00007f3fd9a28b0c in g_main_context_iteration (context=0x7f3fbc001710, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#27 0x00007f3fe226a6df in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55a4981fe9d0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#28 0x00007f3fe221407a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fff9afee810, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#29 0x00007f3fe221c7ec in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1261
#30 0x000055a4972592bf in  ()
#31 0x00007f3fe16762b1 in __libc_start_main (main=0x55a497258320, argc=1, argv=0x7fff9afeec08, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff9afeebf8) at ../csu/libc-start.c:291
#32 0x000055a4972597ca in _start ()

Reported using DrKonqi
Comment 1 Justin Zobel 2020-12-07 04:18:45 UTC 
Thank you for the report.

As it has been a while since this was reported, can you please test and confirm if this issue is still occurring or if this bug report can be marked as resolved.

I have set the bug status to "needsinfo" pending your response, please change back to "reported" or "resolved/worksforme" when you respond, thank you.
Comment 2 Bug Janitor Service 2020-12-22 04:34:38 UTC 
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 3 Bug Janitor Service 2021-01-06 04:34:09 UTC 
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!