Bug 513941

Summary: Okular crashed while viewing PDF document begin recompiled (LaTeX)
Product: [Applications] okular Reporter: winner5
Component: generalAssignee: Okular developers <okular-devel>
Status: REPORTED ---    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version First Reported In: 25.11.90   
Target Milestone: ---   
Platform: Debian testing   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description winner5 2025-12-29 10:19:36 UTC 
Application: okular (25.11.90)

ApplicationNotResponding [ANR]: false
Qt Version: 6.9.2
Frameworks Version: 6.20.0
Operating System: Linux 6.17.13+deb14-amd64 x86_64
Windowing System: Wayland
Distribution: Debian GNU/Linux forky/sid
DrKonqi: 6.5.4 [CoredumpBackend]

-- Information about the crash:
I was viewing PDF document. The document was being recompiled in the meantime a few times (XeLaTeX through latexmk). Nothing was happening while reloading recompiled document a few times, but the last time, Okular started showing in the place for viewed document parts of desktop background and other apps like a screenshot.

May be important: I use bumblebee on my Debian, Wayland. My KDE previously acted strange (mysterious dots on the screen) - may be connected with NVIDIA proprietary driver.

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: Okular (okular), signal: Segmentation fault

#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>,[New LWP 159930]
[New LWP 159936]
[New LWP 159935]
[New LWP 166338]
[New LWP 166334]
[New LWP 159939]
[New LWP 166340]
[New LWP 166339]
[New LWP 159938]
[New LWP 159933]
[New LWP 159940]
[New LWP 159932]
[New LWP 159931]
[New LWP 166337]
[New LWP 159934]
[New LWP 166336]
[New LWP 159937]
[New LWP 166335]
[New LWP 166341]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/bin/okular'.
Program terminated with signal SIGSEGV, Segmentation fault.
Download failed: Invalid argument.  Continuing without source file ./nptl/./nptl/pthread_kill.c.
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=11, no_tid=no_tid@entry=0) at ./nptl/pthread_kill.c:44

warning: 44	./nptl/pthread_kill.c: No such file or directory
[Current thread is 1 (Thread 0x7fcea0f37dc0 (LWP 159930))]
add symbol table from file "/usr/lib/x86_64-linux-gnu/libc.so.6"
add symbol table from file "/usr/lib/x86_64-linux-gnu/libKF6Crash.so.6"
add symbol table from file "/usr/lib/x86_64-linux-gnu/qt6/plugins/kf6/parts/okularpart.so"
add symbol table from file "/usr/lib/x86_64-linux-gnu/libQt6Widgets.so.6"
add symbol table from file "/usr/lib/x86_64-linux-gnu/libQt6Core.so.6"
add symbol table from file "/usr/lib/x86_64-linux-gnu/libQt6Gui.so.6"
add symbol table from file "/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0"
add symbol table from file "/usr/bin/okular"
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/shell/./shell/main.cpp.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/widgets/kernel/qapplication.cpp.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/gui/kernel/qguiapplication.cpp.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/corelib/kernel/qcoreapplication.cpp.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/corelib/global/qflags.h.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/corelib/kernel/qeventdispatcher_glib.cpp.
Download failed: Invalid argument.  Continuing without source file ./debian/build/deb/../../../glib/gmain.c.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/corelib/kernel/qobject.cpp.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/gui/kernel/qwindowsysteminterface.cpp.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/widgets/kernel/qwidgetwindow.cpp.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/widgets/kernel/qgesturemanager.cpp.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/corelib/tools/qhash.h.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/widgets/kernel/qgesturemanager.cpp.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./part/pageview.cpp.
add symbol table from file "/usr/lib/x86_64-linux-gnu/libgallium-25.2.8-2+b3.so"
Download failed: Invalid argument.  Continuing without source file ./misc/../sysdeps/unix/sysv/linux/x86_64/clone3.S.
Download failed: Invalid argument.  Continuing without source file ./nptl/./nptl/pthread_create.c.
Download failed: Invalid argument.  Continuing without source file ./build/../src/c11/impl/threads_posix.c.
Download failed: Invalid argument.  Continuing without source file ./build/../src/util/u_queue.c.
Download failed: Invalid argument.  Continuing without source file ./nptl/./nptl/pthread_cond_wait.c.
Download failed: Invalid argument.  Continuing without source file ./nptl/./nptl/futex-internal.c.
Download failed: Invalid argument.  Continuing without source file ./nptl/./nptl/cancellation.c.
Download failed: Invalid argument.  Continuing without source file ./nptl/../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/corelib/thread/qthread_unix.cpp.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/corelib/thread/qthreadpool.cpp.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/corelib/thread/qwaitcondition_unix.cpp.
add symbol table from file "/usr/lib/x86_64-linux-gnu/libQt6WaylandClient.so.6"
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/client/qwaylanddisplay.cpp.
Download failed: Invalid argument.  Continuing without source file ./io/../sysdeps/unix/sysv/linux/poll.c.
add symbol table from file "/usr/lib/x86_64-linux-gnu/libQt6DBus.so.6"
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/dbus/qdbusconnectionmanager.cpp.
Download failed: Invalid argument.  Continuing without source file ./obj-x86_64-linux-gnu/./src/corelib/thread/qthread.cpp.
Download failed: Invalid argument.  Continuing without source file ./io/../sysdeps/unix/sysv/linux/ppoll.c.
[Current thread is 19 (Thread 0x7fce7b1f86c0 (LWP 166341))]

Thread 19 (Thread 0x7fce7b1f86c0 (LWP 166341)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=202) at ./nptl/cancellation.c:49
#2  0x00007fcea649245c in __futex_abstimed_wait_common64 (private=<optimized out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>, abstime=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>, expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>, private=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:87
#4  0x00007fcea6494b8d in __pthread_cond_wait_common (cond=0x562686358f78, mutex=0x562686358f50, clockid=<optimized out>, abstime=0x7fce7b1f7690) at ./nptl/pthread_cond_wait.c:421
#5  ___pthread_cond_timedwait64 (cond=0x562686358f78, mutex=0x562686358f50, abstime=0x7fce7b1f7690) at ./nptl/pthread_cond_wait.c:478
#6  0x00007fcea6f22757 in QWaitConditionPrivate::wait_relative (this=<optimized out>, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:57
#7  QWaitConditionPrivate::wait (this=0x562686358f50, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:65
#8  QWaitCondition::wait (this=this@entry=0x5626870605e0, mutex=mutex@entry=0x562685fad178, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:145
#9  0x00007fcea6f248f6 in QThreadPoolThread::run (this=0x5626870605d0) at ./src/corelib/thread/qthreadpool.cpp:119
#10 0x00007fcea6f1c6e4 in operator() (__closure=<optimized out>) at ./src/corelib/thread/qthread_unix.cpp:434
#11 (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at ./src/corelib/thread/qthread_unix.cpp:366
#12 QThreadPrivate::start (arg=0x5626870605d0) at ./src/corelib/thread/qthread_unix.cpp:394
#13 0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#14 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 18 (Thread 0x7fce712656c0 (LWP 166335)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=202) at ./nptl/cancellation.c:49
#2  0x00007fcea649245c in __futex_abstimed_wait_common64 (private=<optimized out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>, abstime=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>, expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>, private=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:87
#4  0x00007fcea6494b8d in __pthread_cond_wait_common (cond=0x562685bdf928, mutex=0x562685bdf900, clockid=<optimized out>, abstime=0x7fce71264690) at ./nptl/pthread_cond_wait.c:421
#5  ___pthread_cond_timedwait64 (cond=0x562685bdf928, mutex=0x562685bdf900, abstime=0x7fce71264690) at ./nptl/pthread_cond_wait.c:478
#6  0x00007fcea6f22757 in QWaitConditionPrivate::wait_relative (this=<optimized out>, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:57
#7  QWaitConditionPrivate::wait (this=0x562685bdf900, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:65
#8  QWaitCondition::wait (this=this@entry=0x56268651f680, mutex=mutex@entry=0x562685fad178, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:145
#9  0x00007fcea6f248f6 in QThreadPoolThread::run (this=0x56268651f670) at ./src/corelib/thread/qthreadpool.cpp:119
#10 0x00007fcea6f1c6e4 in operator() (__closure=<optimized out>) at ./src/corelib/thread/qthread_unix.cpp:434
#11 (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at ./src/corelib/thread/qthread_unix.cpp:366
#12 QThreadPrivate::start (arg=0x56268651f670) at ./src/corelib/thread/qthread_unix.cpp:394
#13 0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#14 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 17 (Thread 0x7fce7e1fe6c0 (LWP 159937)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=202) at ./nptl/cancellation.c:49
#2  0x00007fcea649245c in __futex_abstimed_wait_common64 (private=<optimized out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>, abstime=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>, expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>, private=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:87
#4  0x00007fcea64949c8 in __pthread_cond_wait_common (cond=0x562685d77400, mutex=0x562685d773d0, clockid=0, abstime=0x0) at ./nptl/pthread_cond_wait.c:421
#5  ___pthread_cond_wait (cond=0x562685d77400, mutex=0x562685d773d0) at ./nptl/pthread_cond_wait.c:453
#6  0x00007fce86c106dd in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:112
#7  0x00007fce86bca73c in util_queue_thread_func (input=input@entry=0x562685de50b0) at ../src/util/u_queue.c:275
#8  0x00007fce86c1060b in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:43
#9  0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#10 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 16 (Thread 0x7fce73fff6c0 (LWP 166336)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=202) at ./nptl/cancellation.c:49
#2  0x00007fcea649245c in __futex_abstimed_wait_common64 (private=<optimized out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>, abstime=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>, expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>, private=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:87
#4  0x00007fcea6494b8d in __pthread_cond_wait_common (cond=0x5626864bdfc8, mutex=0x5626864bdfa0, clockid=<optimized out>, abstime=0x7fce73ffe690) at ./nptl/pthread_cond_wait.c:421
#5  ___pthread_cond_timedwait64 (cond=0x5626864bdfc8, mutex=0x5626864bdfa0, abstime=0x7fce73ffe690) at ./nptl/pthread_cond_wait.c:478
#6  0x00007fcea6f22757 in QWaitConditionPrivate::wait_relative (this=<optimized out>, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:57
#7  QWaitConditionPrivate::wait (this=0x5626864bdfa0, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:65
#8  QWaitCondition::wait (this=this@entry=0x562685f66830, mutex=mutex@entry=0x562685fad178, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:145
#9  0x00007fcea6f248f6 in QThreadPoolThread::run (this=0x562685f66820) at ./src/corelib/thread/qthreadpool.cpp:119
#10 0x00007fcea6f1c6e4 in operator() (__closure=<optimized out>) at ./src/corelib/thread/qthread_unix.cpp:434
#11 (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at ./src/corelib/thread/qthread_unix.cpp:366
#12 QThreadPrivate::start (arg=0x562685f66820) at ./src/corelib/thread/qthread_unix.cpp:394
#13 0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#14 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 15 (Thread 0x7fce995086c0 (LWP 159934)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=202) at ./nptl/cancellation.c:49
#2  0x00007fcea649245c in __futex_abstimed_wait_common64 (private=<optimized out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>, abstime=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>, expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>, private=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:87
#4  0x00007fcea64949c8 in __pthread_cond_wait_common (cond=0x562685d75d70, mutex=0x562685d75d40, clockid=0, abstime=0x0) at ./nptl/pthread_cond_wait.c:421
#5  ___pthread_cond_wait (cond=0x562685d75d70, mutex=0x562685d75d40) at ./nptl/pthread_cond_wait.c:453
#6  0x00007fce86c106dd in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:112
#7  0x00007fce86bca73c in util_queue_thread_func (input=input@entry=0x562685d73fc0) at ../src/util/u_queue.c:275
#8  0x00007fce86c1060b in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:43
#9  0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#10 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 14 (Thread 0x7fce7c1fa6c0 (LWP 166337)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=202) at ./nptl/cancellation.c:49
#2  0x00007fcea649245c in __futex_abstimed_wait_common64 (private=<optimized out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>, abstime=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>, expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>, private=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:87
#4  0x00007fcea6494b8d in __pthread_cond_wait_common (cond=0x562686362d08, mutex=0x562686362ce0, clockid=<optimized out>, abstime=0x7fce7c1f9690) at ./nptl/pthread_cond_wait.c:421
#5  ___pthread_cond_timedwait64 (cond=0x562686362d08, mutex=0x562686362ce0, abstime=0x7fce7c1f9690) at ./nptl/pthread_cond_wait.c:478
#6  0x00007fcea6f22757 in QWaitConditionPrivate::wait_relative (this=<optimized out>, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:57
#7  QWaitConditionPrivate::wait (this=0x562686362ce0, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:65
#8  QWaitCondition::wait (this=this@entry=0x562686158900, mutex=mutex@entry=0x562685fad178, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:145
#9  0x00007fcea6f248f6 in QThreadPoolThread::run (this=0x5626861588f0) at ./src/corelib/thread/qthreadpool.cpp:119
#10 0x00007fcea6f1c6e4 in operator() (__closure=<optimized out>) at ./src/corelib/thread/qthread_unix.cpp:434
#11 (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at ./src/corelib/thread/qthread_unix.cpp:366
#12 QThreadPrivate::start (arg=0x5626861588f0) at ./src/corelib/thread/qthread_unix.cpp:394
#13 0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#14 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 13 (Thread 0x7fcea0bff6c0 (LWP 159931)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=271) at ./nptl/cancellation.c:49
#2  0x00007fcea6491e8d in __syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=271) at ./nptl/cancellation.c:75
#3  0x00007fcea650710e in __GI_ppoll (fds=fds@entry=0x562685b45b50, nfds=nfds@entry=3, timeout=<optimized out>, timeout@entry=0x0, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:42
#4  0x00007fcea5dd7af4 in ppoll (__fds=0x562685b45b50, __nfds=3, __timeout=0x0, __ss=0x0) at /usr/include/x86_64-linux-gnu/bits/poll2.h:101
#5  g_main_context_poll_unlocked (priority=<optimized out>, context=0x7fce9c000cf0, timeout_usec=<optimized out>, fds=0x562685b45b50, n_fds=3) at ../../../glib/gmain.c:4811
#6  g_main_context_iterate_unlocked (context=context@entry=0x7fce9c000cf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4485
#7  0x00007fcea5dd81d0 in g_main_context_iteration (context=0x7fce9c000cf0, may_block=1) at ../../../glib/gmain.c:4556
#8  0x00007fcea7004dc8 in QEventDispatcherGlib::processEvents (this=0x7fce9c000be0, flags=...) at ./src/corelib/kernel/qeventdispatcher_glib.cpp:399
#9  0x00007fcea6dafe53 in QEventLoop::exec (this=0x7fcea0bfe710, flags=...) at ./src/corelib/global/qflags.h:77
#10 0x00007fcea6e9896f in QThread::exec (this=this@entry=0x7fcea8780d40 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager> >::instance()::holder>) at ./src/corelib/thread/qthread.cpp:659
#11 0x00007fcea86fd31e in QDBusConnectionManager::run (this=0x7fcea8780d40 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager> >::instance()::holder>) at ./src/dbus/qdbusconnectionmanager.cpp:145
#12 0x00007fcea6f1c6e4 in operator() (__closure=<optimized out>) at ./src/corelib/thread/qthread_unix.cpp:434
#13 (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at ./src/corelib/thread/qthread_unix.cpp:366
#14 QThreadPrivate::start (arg=0x7fcea8780d40 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager> >::instance()::holder>) at ./src/corelib/thread/qthread_unix.cpp:394
#15 0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#16 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 12 (Thread 0x7fce9acae6c0 (LWP 159932)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=7) at ./nptl/cancellation.c:49
#2  0x00007fcea6491e8d in __syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=7) at ./nptl/cancellation.c:75
#3  0x00007fcea6506be6 in __GI___poll (fds=fds@entry=0x7fce9acad750, nfds=nfds@entry=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#4  0x00007fcea4766f6c in poll (__fds=0x7fce9acad750, __nfds=2, __timeout=-1) at /usr/include/x86_64-linux-gnu/bits/poll2.h:44
#5  QtWaylandClient::EventThread::run (this=0x562685bdaa10) at ./src/client/qwaylanddisplay.cpp:183
#6  0x00007fcea6f1c6e4 in operator() (__closure=<optimized out>) at ./src/corelib/thread/qthread_unix.cpp:434
#7  (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at ./src/corelib/thread/qthread_unix.cpp:366
#8  QThreadPrivate::start (arg=0x562685bdaa10) at ./src/corelib/thread/qthread_unix.cpp:394
#9  0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#10 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 11 (Thread 0x7fce7c9fb6c0 (LWP 159940)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=202) at ./nptl/cancellation.c:49
#2  0x00007fcea649245c in __futex_abstimed_wait_common64 (private=<optimized out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>, abstime=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>, expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>, private=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:87
#4  0x00007fcea64949c8 in __pthread_cond_wait_common (cond=0x562685e8dc30, mutex=0x562685e8dc00, clockid=0, abstime=0x0) at ./nptl/pthread_cond_wait.c:421
#5  ___pthread_cond_wait (cond=0x562685e8dc30, mutex=0x562685e8dc00) at ./nptl/pthread_cond_wait.c:453
#6  0x00007fce86c106dd in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:112
#7  0x00007fce86bca73c in util_queue_thread_func (input=input@entry=0x562685da01b0) at ../src/util/u_queue.c:275
#8  0x00007fce86c1060b in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:43
#9  0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#10 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 10 (Thread 0x7fce9a4ad6c0 (LWP 159933)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=7) at ./nptl/cancellation.c:49
#2  0x00007fcea6491e8d in __syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=7) at ./nptl/cancellation.c:75
#3  0x00007fcea6506be6 in __GI___poll (fds=fds@entry=0x7fce9a4ac750, nfds=nfds@entry=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#4  0x00007fcea4766f6c in poll (__fds=0x7fce9a4ac750, __nfds=2, __timeout=-1) at /usr/include/x86_64-linux-gnu/bits/poll2.h:44
#5  QtWaylandClient::EventThread::run (this=0x562685bc8ff0) at ./src/client/qwaylanddisplay.cpp:183
#6  0x00007fcea6f1c6e4 in operator() (__closure=<optimized out>) at ./src/corelib/thread/qthread_unix.cpp:434
#7  (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at ./src/corelib/thread/qthread_unix.cpp:366
#8  QThreadPrivate::start (arg=0x562685bc8ff0) at ./src/corelib/thread/qthread_unix.cpp:394
#9  0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#10 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 9 (Thread 0x7fce7d9fd6c0 (LWP 159938)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=202) at ./nptl/cancellation.c:49
#2  0x00007fcea649245c in __futex_abstimed_wait_common64 (private=<optimized out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>, abstime=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>, expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>, private=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:87
#4  0x00007fcea64949c8 in __pthread_cond_wait_common (cond=0x562685df5d10, mutex=0x562685df5ce0, clockid=0, abstime=0x0) at ./nptl/pthread_cond_wait.c:421
#5  ___pthread_cond_wait (cond=0x562685df5d10, mutex=0x562685df5ce0) at ./nptl/pthread_cond_wait.c:453
#6  0x00007fce86c106dd in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:112
#7  0x00007fce86bca73c in util_queue_thread_func (input=input@entry=0x562685da00d0) at ../src/util/u_queue.c:275
#8  0x00007fce86c1060b in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:43
#9  0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#10 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 8 (Thread 0x7fce7a9f76c0 (LWP 166339)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=202) at ./nptl/cancellation.c:49
#2  0x00007fcea649245c in __futex_abstimed_wait_common64 (private=<optimized out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>, abstime=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>, expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>, private=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:87
#4  0x00007fcea6494b8d in __pthread_cond_wait_common (cond=0x5626868f0bd8, mutex=0x5626868f0bb0, clockid=<optimized out>, abstime=0x7fce7a9f6690) at ./nptl/pthread_cond_wait.c:421
#5  ___pthread_cond_timedwait64 (cond=0x5626868f0bd8, mutex=0x5626868f0bb0, abstime=0x7fce7a9f6690) at ./nptl/pthread_cond_wait.c:478
#6  0x00007fcea6f22757 in QWaitConditionPrivate::wait_relative (this=<optimized out>, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:57
#7  QWaitConditionPrivate::wait (this=0x5626868f0bb0, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:65
#8  QWaitCondition::wait (this=this@entry=0x5626861a7510, mutex=mutex@entry=0x562685fad178, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:145
#9  0x00007fcea6f248f6 in QThreadPoolThread::run (this=0x5626861a7500) at ./src/corelib/thread/qthreadpool.cpp:119
#10 0x00007fcea6f1c6e4 in operator() (__closure=<optimized out>) at ./src/corelib/thread/qthread_unix.cpp:434
#11 (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at ./src/corelib/thread/qthread_unix.cpp:366
#12 QThreadPrivate::start (arg=0x5626861a7500) at ./src/corelib/thread/qthread_unix.cpp:394
#13 0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#14 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 7 (Thread 0x7fce71a666c0 (LWP 166340)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=202) at ./nptl/cancellation.c:49
#2  0x00007fcea649245c in __futex_abstimed_wait_common64 (private=<optimized out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>, abstime=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>, expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>, private=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:87
#4  0x00007fcea6494b8d in __pthread_cond_wait_common (cond=0x562685bdb028, mutex=0x562685bdb000, clockid=<optimized out>, abstime=0x7fce71a65690) at ./nptl/pthread_cond_wait.c:421
#5  ___pthread_cond_timedwait64 (cond=0x562685bdb028, mutex=0x562685bdb000, abstime=0x7fce71a65690) at ./nptl/pthread_cond_wait.c:478
#6  0x00007fcea6f22757 in QWaitConditionPrivate::wait_relative (this=<optimized out>, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:57
#7  QWaitConditionPrivate::wait (this=0x562685bdb000, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:65
#8  QWaitCondition::wait (this=this@entry=0x562685f79250, mutex=mutex@entry=0x562685fad178, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:145
#9  0x00007fcea6f248f6 in QThreadPoolThread::run (this=0x562685f79240) at ./src/corelib/thread/qthreadpool.cpp:119
#10 0x00007fcea6f1c6e4 in operator() (__closure=<optimized out>) at ./src/corelib/thread/qthread_unix.cpp:434
#11 (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at ./src/corelib/thread/qthread_unix.cpp:366
#12 QThreadPrivate::start (arg=0x562685f79240) at ./src/corelib/thread/qthread_unix.cpp:394
#13 0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#14 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 6 (Thread 0x7fce7d1fc6c0 (LWP 159939)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=202) at ./nptl/cancellation.c:49
#2  0x00007fcea649245c in __futex_abstimed_wait_common64 (private=<optimized out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>, abstime=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>, expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>, private=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:87
#4  0x00007fcea64949c8 in __pthread_cond_wait_common (cond=0x562685e48f80, mutex=0x562685e48f50, clockid=0, abstime=0x0) at ./nptl/pthread_cond_wait.c:421
#5  ___pthread_cond_wait (cond=0x562685e48f80, mutex=0x562685e48f50) at ./nptl/pthread_cond_wait.c:453
#6  0x00007fce86c106dd in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:112
#7  0x00007fce86bca73c in util_queue_thread_func (input=input@entry=0x562685da6d10) at ../src/util/u_queue.c:275
#8  0x00007fce86c1060b in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:43
#9  0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#10 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 5 (Thread 0x7fce78c276c0 (LWP 166334)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=202) at ./nptl/cancellation.c:49
#2  0x00007fcea649245c in __futex_abstimed_wait_common64 (private=<optimized out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>, abstime=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>, expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>, private=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:87
#4  0x00007fcea6494b8d in __pthread_cond_wait_common (cond=0x56268634ced8, mutex=0x56268634ceb0, clockid=<optimized out>, abstime=0x7fce78c26690) at ./nptl/pthread_cond_wait.c:421
#5  ___pthread_cond_timedwait64 (cond=0x56268634ced8, mutex=0x56268634ceb0, abstime=0x7fce78c26690) at ./nptl/pthread_cond_wait.c:478
#6  0x00007fcea6f22757 in QWaitConditionPrivate::wait_relative (this=<optimized out>, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:57
#7  QWaitConditionPrivate::wait (this=0x56268634ceb0, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:65
#8  QWaitCondition::wait (this=this@entry=0x5626868f01d0, mutex=mutex@entry=0x562685fad178, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:145
#9  0x00007fcea6f248f6 in QThreadPoolThread::run (this=0x5626868f01c0) at ./src/corelib/thread/qthreadpool.cpp:119
#10 0x00007fcea6f1c6e4 in operator() (__closure=<optimized out>) at ./src/corelib/thread/qthread_unix.cpp:434
#11 (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at ./src/corelib/thread/qthread_unix.cpp:366
#12 QThreadPrivate::start (arg=0x5626868f01c0) at ./src/corelib/thread/qthread_unix.cpp:394
#13 0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#14 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 4 (Thread 0x7fce7b9f96c0 (LWP 166338)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=202) at ./nptl/cancellation.c:49
#2  0x00007fcea649245c in __futex_abstimed_wait_common64 (private=<optimized out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>, abstime=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>, expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>, private=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:87
#4  0x00007fcea6494b8d in __pthread_cond_wait_common (cond=0x5626861589e8, mutex=0x5626861589c0, clockid=<optimized out>, abstime=0x7fce7b9f8690) at ./nptl/pthread_cond_wait.c:421
#5  ___pthread_cond_timedwait64 (cond=0x5626861589e8, mutex=0x5626861589c0, abstime=0x7fce7b9f8690) at ./nptl/pthread_cond_wait.c:478
#6  0x00007fcea6f22757 in QWaitConditionPrivate::wait_relative (this=<optimized out>, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:57
#7  QWaitConditionPrivate::wait (this=0x5626861589c0, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:65
#8  QWaitCondition::wait (this=this@entry=0x562686849d30, mutex=mutex@entry=0x562685fad178, deadline=...) at ./src/corelib/thread/qwaitcondition_unix.cpp:145
#9  0x00007fcea6f248f6 in QThreadPoolThread::run (this=0x562686849d20) at ./src/corelib/thread/qthreadpool.cpp:119
#10 0x00007fcea6f1c6e4 in operator() (__closure=<optimized out>) at ./src/corelib/thread/qthread_unix.cpp:434
#11 (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at ./src/corelib/thread/qthread_unix.cpp:366
#12 QThreadPrivate::start (arg=0x562686849d20) at ./src/corelib/thread/qthread_unix.cpp:394
#13 0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#14 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 3 (Thread 0x7fce98b916c0 (LWP 159935)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=202) at ./nptl/cancellation.c:49
#2  0x00007fcea649245c in __futex_abstimed_wait_common64 (private=<optimized out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>, abstime=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>, expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>, private=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:87
#4  0x00007fcea64949c8 in __pthread_cond_wait_common (cond=0x562685de51f0, mutex=0x562685de51c0, clockid=0, abstime=0x0) at ./nptl/pthread_cond_wait.c:421
#5  ___pthread_cond_wait (cond=0x562685de51f0, mutex=0x562685de51c0) at ./nptl/pthread_cond_wait.c:453
#6  0x00007fce86c106dd in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:112
#7  0x00007fce86bca73c in util_queue_thread_func (input=input@entry=0x562685de5130) at ../src/util/u_queue.c:275
#8  0x00007fce86c1060b in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:43
#9  0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#10 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 2 (Thread 0x7fce7e9ff6c0 (LWP 159936)):
#0  __syscall_cancel_arch () at ../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007fcea6491e44 in __internal_syscall_cancel (a1=<optimized out>, a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized out>, nr=202) at ./nptl/cancellation.c:49
#2  0x00007fcea649245c in __futex_abstimed_wait_common64 (private=<optimized out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>, abstime=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>, expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>, private=<optimized out>, cancel=<optimized out>) at ./nptl/futex-internal.c:87
#4  0x00007fcea64949c8 in __pthread_cond_wait_common (cond=0x562685d77250, mutex=0x562685d77220, clockid=0, abstime=0x0) at ./nptl/pthread_cond_wait.c:421
#5  ___pthread_cond_wait (cond=0x562685d77250, mutex=0x562685d77220) at ./nptl/pthread_cond_wait.c:453
#6  0x00007fce86c106dd in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:112
#7  0x00007fce86bca73c in util_queue_thread_func (input=input@entry=0x562685de50f0) at ../src/util/u_queue.c:275
#8  0x00007fce86c1060b in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:43
#9  0x00007fcea6495428 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448
#10 0x00007fcea6513b78 in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 1 (Thread 0x7fcea0f37dc0 (LWP 159930)):
[KCrash Handler]
#4  0x00007fce79f7e540 in PageView::zoomWithFixedCenter (this=this@entry=0x5626864a3010, newZoomMode=newZoomMode@entry=PageView::ZoomRefreshCurrent, zoomCenter=..., newZoom=newZoom@entry=1.01193237) at ./part/pageview.cpp:4507
#5  0x00007fce79f7eb59 in PageView::gestureEvent (this=0x5626864a3010, event=<optimized out>) at ./part/pageview.cpp:1758
#6  0x00007fcea7db9c48 in QApplicationPrivate::notify_helper (this=this@entry=0x562685b5cda0, receiver=receiver@entry=0x5626864a3010, e=e@entry=0x7ffcf719b160) at ./src/widgets/kernel/qapplication.cpp:3300
#7  0x00007fcea7dbf673 in QApplication::notify (this=<optimized out>, receiver=<optimized out>, e=<optimized out>) at ./src/widgets/kernel/qapplication.cpp:3193
#8  0x00007fcea6da6928 in QCoreApplication::notifyInternal2 (receiver=0x5626864a3010, event=0x7ffcf719b3a0) at ./src/corelib/kernel/qcoreapplication.cpp:1106
#9  0x00007fcea6da696d in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>) at ./src/corelib/kernel/qcoreapplication.cpp:1546
#10 0x00007fcea7de4cea in QGestureManager::deliverEvents (this=0x562685bde3d0, gestures=..., undeliveredGestures=<optimized out>) at ./src/widgets/kernel/qgesturemanager.cpp:698
#11 0x00007fcea7dd22fa in QGestureManager::deliverEvents (this=0x562685bde3d0, gestures=..., undeliveredGestures=0x7ffcf719b568) at ./src/corelib/tools/qhash.h:954
#12 QGestureManager::filterEventThroughContexts (this=this@entry=0x562685bde3d0, contexts=..., event=event@entry=0x7ffcf719ba10) at ./src/widgets/kernel/qgesturemanager.cpp:364
#13 0x00007fcea7dd4abf in QGestureManager::filterEvent (this=<optimized out>, receiver=<optimized out>, event=0x7ffcf719ba10) at ./src/widgets/kernel/qgesturemanager.cpp:497
#14 0x00007fcea7dbf40d in QApplication::notify (this=0x7ffcf719c580, receiver=0x5626862d5aa0, e=0x7ffcf719ba10) at ./src/widgets/kernel/qapplication.cpp:2624
#15 0x00007fcea6da6928 in QCoreApplication::notifyInternal2 (receiver=0x5626862d5aa0, event=0x7ffcf719ba10) at ./src/corelib/kernel/qcoreapplication.cpp:1106
#16 0x00007fcea6da6e1d in QCoreApplication::sendSpontaneousEvent (receiver=<optimized out>, event=<optimized out>) at ./src/corelib/kernel/qcoreapplication.cpp:1560
#17 0x00007fcea7dbc3f4 in QApplicationPrivate::translateRawTouchEvent (window=0x562686036a70, te=0x7ffcf719be78) at ./src/widgets/kernel/qapplication.cpp:3930
#18 0x00007fcea7e2eb61 in QWidgetWindow::handleTouchEvent (this=0x5626863b9050, event=0x7ffcf719be78) at ./src/widgets/kernel/qwidgetwindow.cpp:710
#19 QWidgetWindow::handleTouchEvent (this=0x5626863b9050, event=0x7ffcf719be78) at ./src/widgets/kernel/qwidgetwindow.cpp:700
#20 QWidgetWindow::event (this=0x5626863b9050, event=0x7ffcf719be78) at ./src/widgets/kernel/qwidgetwindow.cpp:306
#21 0x00007fcea7db9c48 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5626863b9050, e=0x7ffcf719be78) at ./src/widgets/kernel/qapplication.cpp:3300
#22 0x00007fcea6da6928 in QCoreApplication::notifyInternal2 (receiver=0x5626863b9050, event=0x7ffcf719be78) at ./src/corelib/kernel/qcoreapplication.cpp:1106
#23 0x00007fcea6da6e1d in QCoreApplication::sendSpontaneousEvent (receiver=<optimized out>, event=<optimized out>) at ./src/corelib/kernel/qcoreapplication.cpp:1560
#24 0x00007fcea73f706c in QGuiApplicationPrivate::processTouchEvent (e=<optimized out>) at ./src/gui/kernel/qguiapplication.cpp:3267
#25 0x00007fcea7453efb in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at ./src/gui/kernel/qwindowsysteminterface.cpp:1117
#26 0x00007fcea7454100 in QWindowSystemInterface::flushWindowSystemEvents (flags=...) at ./src/gui/kernel/qwindowsysteminterface.cpp:1086
#27 0x00007fcea6df0c94 in QObject::event (this=<optimized out>, e=<optimized out>) at ./src/corelib/kernel/qobject.cpp:1432
#28 0x00007fcea7db9c48 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x562685b86660, e=0x7fce940026c0) at ./src/widgets/kernel/qapplication.cpp:3300
#29 0x00007fcea6da6928 in QCoreApplication::notifyInternal2 (receiver=0x562685b86660, event=0x7fce940026c0) at ./src/corelib/kernel/qcoreapplication.cpp:1106
#30 0x00007fcea6da696d in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>) at ./src/corelib/kernel/qcoreapplication.cpp:1546
#31 0x00007fcea6da6b97 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x562685b81350) at ./src/corelib/kernel/qcoreapplication.cpp:1891
#32 0x00007fcea7007e37 in postEventSourceDispatch (s=0x562685b839a0) at ./src/corelib/kernel/qeventdispatcher_glib.cpp:246
#33 0x00007fcea5dd46ae in g_main_dispatch (context=context@entry=0x7fce9c000f50) at ../../../glib/gmain.c:3565
#34 0x00007fcea5dd7a4f in g_main_context_dispatch_unlocked (context=0x7fce9c000f50) at ../../../glib/gmain.c:4425
#35 g_main_context_iterate_unlocked (context=context@entry=0x7fce9c000f50, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4490
#36 0x00007fcea5dd81d0 in g_main_context_iteration (context=0x7fce9c000f50, may_block=1) at ../../../glib/gmain.c:4556
#37 0x00007fcea7004dc8 in QEventDispatcherGlib::processEvents (this=0x562685b44990, flags=...) at ./src/corelib/kernel/qeventdispatcher_glib.cpp:399
#38 0x00007fcea6dafe53 in QEventLoop::exec (this=0x7ffcf719c410, flags=...) at ./src/corelib/global/qflags.h:77
#39 0x00007fcea6da9701 in QCoreApplication::exec () at ./src/corelib/kernel/qcoreapplication.cpp:1449
#40 0x00007fcea73ef860 in QGuiApplication::exec () at ./src/gui/kernel/qguiapplication.cpp:1986
#41 0x00007fcea7db49a9 in QApplication::exec () at ./src/widgets/kernel/qapplication.cpp:2567
#42 0x0000562669240ccf in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:109

Reported using DrKonqi