Created attachment 152402 [details]
An example ipynb file (downloaded from https://github.com/flamingbear/ipython-notebooks) which crashes Cantor

SUMMARY
When opening an ipython notebook file (ipynb), cantor crashes. 

I have attached an example file. The crash happens with all the ipynb files I have checked so far.

STEPS TO REPRODUCE
1. From the terminal, run `cantor $path_to_ipynb_notebook_file`

OBSERVED RESULTS
Cantor crashes. Here is the output in the terminal:
```
Adding additional application library path for Cantor plugins loading "/usr/lib/qt/plugins"
dir:  "/usr/lib/qt/plugins/cantor/panels"
dir:  "/usr/bin/cantor/panels"
adding panel for  "Documentation"
adding panel for  "File Browser"
adding panel for  "Help"
adding panel for  "Table Of Contents"
adding panel for  "Variables"
dir:  "/usr/lib/qt/plugins/cantor/backends"
dir:  "/usr/bin/cantor/backends"
new worksheetaccess interface
20 -- exe=/usr/bin/cantor
13 -- platform=xcb
11 -- display=:0
15 -- appname=cantor
17 -- apppath=/usr/bin
10 -- signal=11
10 -- pid=18393
19 -- appversion=22.08.1
19 -- programname=Cantor
31 -- bugaddress=submit@bugs.kde.org
12 -- startupid=0
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = cantor path = /usr/bin pid = 18393
KCrash: Arguments: /usr/bin/cantor Horn_Arnous_2022_supplementary.ipynb 
KCrash: Attempting to start /usr/lib/drkonqi
fish: Job 1, 'cantor Horn_Arnous_2022_supplem…' has stopped
```

EXPECTED RESULTS
Open the notebook or show an error window giving a reason why it could not be opened.

SOFTWARE VERSIONS
cantor 22.08.1
Operating System: Arch Linux
KDE Plasma Version: 5.25.90
KDE Frameworks Version: 5.98.0
Qt Version: 5.15.6
Kernel Version: 5.15.70-1-lts (64-bit)
Graphics Platform: X11

BACKTRACE

Thread 25 (Thread 0x7f3ed1ffb6c0 (LWP 486770)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55c16cbb7f10) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55c16cbb7f10, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55c16cbb7f10, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c16cbb7ec0, cond=0x55c16cbb7ee8) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55c16cbb7ee8, mutex=0x55c16cbb7ec0) at pthread_cond_wait.c:618
#5  0x00007f3f04521c5c in cnd_wait () at ../mesa-22.1.7/include/c11/threads_posix.h:155
#6  util_queue_thread_func() () at ../mesa-22.1.7/src/util/u_queue.c:294
#7  0x00007f3f0451b35c in impl_thrd_routine() () at ../mesa-22.1.7/include/c11/threads_posix.h:87
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 24 (Thread 0x7f3e8effd6c0 (LWP 486789)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x7f3e8effc1d0, op=137, expected=0, futex_word=0x7f3e8effc3a8) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7f3e8effc3a8, expected=expected@entry=0, clockid=clockid@entry=1, abstime=abstime@entry=0x7f3e8effc1d0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7f3e8effc3a8, expected=expected@entry=0, clockid=clockid@entry=1, abstime=abstime@entry=0x7f3e8effc1d0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeee24 in __pthread_cond_wait_common (abstime=0x7f3e8effc1d0, clockid=1, mutex=0x7f3e8effc358, cond=0x7f3e8effc380) at pthread_cond_wait.c:503
#4  ___pthread_cond_timedwait64 (cond=0x7f3e8effc380, mutex=0x7f3e8effc358, abstime=0x7f3e8effc1d0) at pthread_cond_wait.c:643
#5  0x00007f3f2212f1f0 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:131
#6  0x00007f3f2212fba7 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:213
#7  0x00007f3f2210b81b in base::internal::WorkerThread::Delegate::WaitForWork(base::WaitableEvent*) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/task/thread_pool/worker_thread.cc:36
#8  base::internal::WorkerThread::RunWorker() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/task/thread_pool/worker_thread.cc:344
#9  0x00007f3f2210bd7d in base::internal::WorkerThread::RunPooledWorker() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/task/thread_pool/worker_thread.cc:223
#10 0x00007f3f22130e0b in ThreadFunc() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:87
#11 0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#12 0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 23 (Thread 0x7f3e76ffd6c0 (LWP 486796)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55c16cd8da88) at futex-internal.c:57
--Type <RET> for more, q to quit, c to continue without paging--c
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55c16cd8da88, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55c16cd8da88, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c16cd8d9c8, cond=0x55c16cd8da60) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55c16cd8da60, mutex=0x55c16cd8d9c8) at pthread_cond_wait.c:618
#5  0x00007f3f2212f093 in base::ConditionVariable::Wait() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:79
#6  0x00007f3f22b04904 in cc::SingleThreadTaskGraphRunner::Run() () at ./../../../../qtwebengine/src/3rdparty/chromium/cc/raster/single_thread_task_graph_runner.cc:123
#7  0x00007f3f22130e0b in ThreadFunc() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:87
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 22 (Thread 0x7f3e6b7fe6c0 (LWP 486804)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f3e5005f820) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7f3e5005f820, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7f3e5005f820, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f3e5005f7d0, cond=0x7f3e5005f7f8) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7f3e5005f7f8, mutex=0x7f3e5005f7d0) at pthread_cond_wait.c:618
#5  0x00007f3f04521c5c in cnd_wait () at ../mesa-22.1.7/include/c11/threads_posix.h:155
#6  util_queue_thread_func() () at ../mesa-22.1.7/src/util/u_queue.c:294
#7  0x00007f3f0451b35c in impl_thrd_routine() () at ../mesa-22.1.7/include/c11/threads_posix.h:87
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 21 (Thread 0x7f3ed27fc6c0 (LWP 486769)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55c16caf3c18) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55c16caf3c18, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55c16caf3c18, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c16caf3bc8, cond=0x55c16caf3bf0) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55c16caf3bf0, mutex=0x55c16caf3bc8) at pthread_cond_wait.c:618
#5  0x00007f3f04521c5c in cnd_wait () at ../mesa-22.1.7/include/c11/threads_posix.h:155
#6  util_queue_thread_func() () at ../mesa-22.1.7/src/util/u_queue.c:294
#7  0x00007f3f0451b35c in impl_thrd_routine() () at ../mesa-22.1.7/include/c11/threads_posix.h:87
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 20 (Thread 0x7f3e8e7fc6c0 (LWP 486790)):
#0  0x00007f3f220e6ae4 in non-virtual thunk to base::sequence_manager::internal::SequenceManagerImpl::DelayTillNextTask(base::sequence_manager::LazyNow*, base::sequence_manager::internal::SequencedTaskSource::SelectTaskOption) const () at ../../../../qtwebengine/src/3rdparty/chromium/base/task/sequence_manager/sequence_manager_impl.h:139
#1  0x00007f3f220f81d6 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWorkImpl(base::sequence_manager::LazyNow*) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:363
#2  0x00007f3f220f833c in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWork() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:252
#3  0x00007f3f2213fae0 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_libevent.cc:209
#4  0x00007f3f220f5078 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:446
#5  0x00007f3f220cd014 in base::RunLoop::Run() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/run_loop.cc:124
#6  0x00007f3f2464ebd9 in content::BrowserProcessSubThread::IOThreadRun(base::RunLoop*) () at ../../../../qtwebengine/src/3rdparty/chromium/content/browser/browser_process_sub_thread.cc:143
#7  0x00007f3f22116f38 in base::Thread::ThreadMain() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:382
#8  0x00007f3f22130e0b in ThreadFunc() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:87
#9  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#10 0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 19 (Thread 0x7f3e74ff96c0 (LWP 486803)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f3e74ff8298) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7f3e74ff8298, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7f3e74ff8298, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f3e74ff8248, cond=0x7f3e74ff8270) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7f3e74ff8270, mutex=0x7f3e74ff8248) at pthread_cond_wait.c:618
#5  0x00007f3f2212f093 in base::ConditionVariable::Wait() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:79
#6  0x00007f3f2212fbe4 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:211
#7  0x00007f3f2212fe8f in base::WaitableEvent::Wait() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:157
#8  0x00007f3f220a6225 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_default.cc:55
#9  0x00007f3f220f5078 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:446
#10 0x00007f3f220cd014 in base::RunLoop::Run() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/run_loop.cc:124
#11 0x00007f3f22116d6d in base::Thread::Run(base::RunLoop*) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:311
#12 base::Thread::ThreadMain() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:382
#13 0x00007f3f22130e0b in ThreadFunc() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:87
#14 0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#15 0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 18 (Thread 0x7f3e6bfff6c0 (LWP 486802)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55c16d15e7e4) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55c16d15e7e4, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55c16d15e7e4, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c16d15e790, cond=0x55c16d15e7b8) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55c16d15e7b8, mutex=0x55c16d15e790) at pthread_cond_wait.c:618
#5  0x00007f3f1df94744 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#6  0x00007f3f1edd2469 in  () at /usr/lib/libQt5Widgets.so.5
#7  0x00007f3f1df8d2ba in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 17 (Thread 0x7f3ed2ffd6c0 (LWP 486768)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55c16caf3c18) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55c16caf3c18, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55c16caf3c18, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c16caf3bc8, cond=0x55c16caf3bf0) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55c16caf3bf0, mutex=0x55c16caf3bc8) at pthread_cond_wait.c:618
#5  0x00007f3f04521c5c in cnd_wait () at ../mesa-22.1.7/include/c11/threads_posix.h:155
#6  util_queue_thread_func() () at ../mesa-22.1.7/src/util/u_queue.c:294
#7  0x00007f3f0451b35c in impl_thrd_routine() () at ../mesa-22.1.7/include/c11/threads_posix.h:87
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 16 (Thread 0x7f3ed37fe6c0 (LWP 486767)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55c16caf3c18) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55c16caf3c18, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55c16caf3c18, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c16caf3bc8, cond=0x55c16caf3bf0) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55c16caf3bf0, mutex=0x55c16caf3bc8) at pthread_cond_wait.c:618
#5  0x00007f3f04521c5c in cnd_wait () at ../mesa-22.1.7/include/c11/threads_posix.h:155
#6  util_queue_thread_func() () at ../mesa-22.1.7/src/util/u_queue.c:294
#7  0x00007f3f0451b35c in impl_thrd_routine() () at ../mesa-22.1.7/include/c11/threads_posix.h:87
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 15 (Thread 0x7f3e75ffb6c0 (LWP 486798)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f3e75ffa298) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7f3e75ffa298, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7f3e75ffa298, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f3e75ffa248, cond=0x7f3e75ffa270) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7f3e75ffa270, mutex=0x7f3e75ffa248) at pthread_cond_wait.c:618
#5  0x00007f3f2212f093 in base::ConditionVariable::Wait() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:79
#6  0x00007f3f2212fbe4 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:211
#7  0x00007f3f2212fe8f in base::WaitableEvent::Wait() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:157
#8  0x00007f3f220a6225 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_default.cc:55
#9  0x00007f3f220f5078 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:446
#10 0x00007f3f220cd014 in base::RunLoop::Run() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/run_loop.cc:124
#11 0x00007f3f22116d6d in base::Thread::Run(base::RunLoop*) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:311
#12 base::Thread::ThreadMain() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:382
#13 0x00007f3f22130e0b in ThreadFunc() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:87
#14 0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#15 0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 14 (Thread 0x7f3efcff96c0 (LWP 486764)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55c16caf36a8) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55c16caf36a8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55c16caf36a8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c16caf3658, cond=0x55c16caf3680) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55c16caf3680, mutex=0x55c16caf3658) at pthread_cond_wait.c:618
#5  0x00007f3f04521c5c in cnd_wait () at ../mesa-22.1.7/include/c11/threads_posix.h:155
#6  util_queue_thread_func() () at ../mesa-22.1.7/src/util/u_queue.c:294
#7  0x00007f3f0451b35c in impl_thrd_routine() () at ../mesa-22.1.7/include/c11/threads_posix.h:87
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 13 (Thread 0x7f3efeffd6c0 (LWP 486760)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55c16caf36ac) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55c16caf36ac, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55c16caf36ac, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c16caf3658, cond=0x55c16caf3680) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55c16caf3680, mutex=0x55c16caf3658) at pthread_cond_wait.c:618
#5  0x00007f3f04521c5c in cnd_wait () at ../mesa-22.1.7/include/c11/threads_posix.h:155
#6  util_queue_thread_func() () at ../mesa-22.1.7/src/util/u_queue.c:294
#7  0x00007f3f0451b35c in impl_thrd_routine() () at ../mesa-22.1.7/include/c11/threads_posix.h:87
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 12 (Thread 0x7f3e8f7fe6c0 (LWP 486788)):
#0  futex_wait (private=0, expected=2, futex_word=0x7f3f1dc43940 <_IO_stdfile_2_lock>) at ../sysdeps/nptl/futex-internal.h:146
#1  __GI___lll_lock_wait_private (futex=0x7f3f1dc43940 <_IO_stdfile_2_lock>) at lowlevellock.c:34
#2  0x00007f3f1dac4d85 in buffered_vfprintf (s=0x7f3f1dc425c0 <_IO_2_1_stderr_>, format=format@entry=0x7f3f1a660f83 "[%s] %s\n", args=args@entry=0x7f3e8f7fcc10, mode_flags=mode_flags@entry=2) at vfprintf-internal.c:1752
#3  0x00007f3f1dac3c83 in __vfprintf_internal (s=<optimized out>, format=0x7f3f1a660f83 "[%s] %s\n", ap=ap@entry=0x7f3e8f7fcc10, mode_flags=mode_flags@entry=2) at vfprintf-internal.c:740
#4  0x00007f3f1db7ed93 in ___fprintf_chk (fp=<optimized out>, flag=flag@entry=1, format=format@entry=0x7f3f1a660f83 "[%s] %s\n") at fprintf_chk.c:33
#5  0x00007f3f1a63f59f in fprintf (__fmt=0x7f3f1a660f83 "[%s] %s\n", __stream=<optimized out>, __stream=<optimized out>, __fmt=<optimized out>) at /usr/include/bits/stdio2.h:79
#6  event_log (msg=0x7f3e8f7fccf0 "epoll_wait: Bad file descriptor", severity=2) at /usr/src/debug/libevent-2.1.12-stable/log.c:242
#7  event_logv_ (severity=severity@entry=2, errstr=0x7f3f1dc0129f "Bad file descriptor", fmt=fmt@entry=0x7f3f1a663153 "epoll_wait", ap=ap@entry=0x7f3e8f7fd120) at /usr/src/debug/libevent-2.1.12-stable/log.c:207
#8  0x00007f3f1a63f76b in event_warn (fmt=0x7f3f1a663153 "epoll_wait") at /usr/src/debug/libevent-2.1.12-stable/log.c:118
#9  0x00007f3f1a64af36 in epoll_dispatch (base=0x7f3e80001d70, tv=<optimized out>) at /usr/src/debug/libevent-2.1.12-stable/epoll.c:471
#10 0x00007f3f1a648195 in event_base_loop (base=0x7f3e80001d70, flags=1) at /usr/src/debug/libevent-2.1.12-stable/event.c:1992
#11 0x00007f3f2213fbd9 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_libevent.cc:258
#12 0x00007f3f220f5078 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:446
#13 0x00007f3f220cd014 in base::RunLoop::Run() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/run_loop.cc:124
#14 0x00007f3f22109f8d in base::internal::ServiceThread::Run(base::RunLoop*) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/task/thread_pool/service_thread.cc:56
#15 0x00007f3f22116f38 in base::Thread::ThreadMain() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:382
#16 0x00007f3f22130e0b in ThreadFunc() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:87
#17 0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#18 0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 11 (Thread 0x7f3ed3fff6c0 (LWP 486766)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55c16caf3c18) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55c16caf3c18, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55c16caf3c18, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c16caf3bc8, cond=0x55c16caf3bf0) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55c16caf3bf0, mutex=0x55c16caf3bc8) at pthread_cond_wait.c:618
#5  0x00007f3f04521c5c in cnd_wait () at ../mesa-22.1.7/include/c11/threads_posix.h:155
#6  util_queue_thread_func() () at ../mesa-22.1.7/src/util/u_queue.c:294
#7  0x00007f3f0451b35c in impl_thrd_routine() () at ../mesa-22.1.7/include/c11/threads_posix.h:87
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 10 (Thread 0x7f3e767fc6c0 (LWP 486797)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f3e767fb298) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7f3e767fb298, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7f3e767fb298, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f3e767fb248, cond=0x7f3e767fb270) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7f3e767fb270, mutex=0x7f3e767fb248) at pthread_cond_wait.c:618
#5  0x00007f3f2212f093 in base::ConditionVariable::Wait() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:79
#6  0x00007f3f2212fbe4 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:211
#7  0x00007f3f2212fe8f in base::WaitableEvent::Wait() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:157
#8  0x00007f3f220a6225 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_default.cc:55
#9  0x00007f3f220f5078 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:446
#10 0x00007f3f220cd014 in base::RunLoop::Run() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/run_loop.cc:124
#11 0x00007f3f22116d6d in base::Thread::Run(base::RunLoop*) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:311
#12 base::Thread::ThreadMain() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:382
#13 0x00007f3f22130e0b in ThreadFunc() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:87
#14 0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#15 0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 9 (Thread 0x7f3ef0f436c0 (LWP 486765)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55c16caf36a8) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55c16caf36a8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55c16caf36a8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c16caf3658, cond=0x55c16caf3680) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55c16caf3680, mutex=0x55c16caf3658) at pthread_cond_wait.c:618
#5  0x00007f3f04521c5c in cnd_wait () at ../mesa-22.1.7/include/c11/threads_posix.h:155
#6  util_queue_thread_func() () at ../mesa-22.1.7/src/util/u_queue.c:294
#7  0x00007f3f0451b35c in impl_thrd_routine() () at ../mesa-22.1.7/include/c11/threads_posix.h:87
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 8 (Thread 0x7f3f07de16c0 (LWP 486754)):
#0  0x00007f3f1db63e5f in __GI___poll (fds=0x7f3f0001da40, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3f184feddf in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f3f0001da40, timeout=<optimized out>, context=0x7f3f00001cf0) at ../glib/glib/gmain.c:4516
#2  g_main_context_iterate.constprop.0 (context=context@entry=0x7f3f00001cf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/glib/gmain.c:4206
#3  0x00007f3f184a6252 in g_main_context_iteration (context=0x7f3f00001cf0, may_block=1) at ../glib/glib/gmain.c:4276
#4  0x00007f3f1e18050f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f3f1e12e30c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f3f1df9049f in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f3f177d0cba in  () at /usr/lib/libQt5DBus.so.5
#8  0x00007f3f1df8d2ba in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#10 0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 7 (Thread 0x7f3eff7fe6c0 (LWP 486759)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55c16ca41918) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55c16ca41918, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55c16ca41918, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c16ca418c8, cond=0x55c16ca418f0) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55c16ca418f0, mutex=0x55c16ca418c8) at pthread_cond_wait.c:618
#5  0x00007f3f04521c5c in cnd_wait () at ../mesa-22.1.7/include/c11/threads_posix.h:155
#6  util_queue_thread_func() () at ../mesa-22.1.7/src/util/u_queue.c:294
#7  0x00007f3f0451b35c in impl_thrd_routine() () at ../mesa-22.1.7/include/c11/threads_posix.h:87
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 6 (Thread 0x7f3efdffb6c0 (LWP 486762)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55c16caf36a8) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55c16caf36a8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55c16caf36a8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c16caf3658, cond=0x55c16caf3680) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55c16caf3680, mutex=0x55c16caf3658) at pthread_cond_wait.c:618
#5  0x00007f3f04521c5c in cnd_wait () at ../mesa-22.1.7/include/c11/threads_posix.h:155
#6  util_queue_thread_func() () at ../mesa-22.1.7/src/util/u_queue.c:294
#7  0x00007f3f0451b35c in impl_thrd_routine() () at ../mesa-22.1.7/include/c11/threads_posix.h:87
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 5 (Thread 0x7f3efffff6c0 (LWP 486758)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55c16cae5954) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55c16cae5954, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55c16cae5954, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c16cae5900, cond=0x55c16cae5928) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55c16cae5928, mutex=0x55c16cae5900) at pthread_cond_wait.c:618
#5  0x00007f3f04521c5c in cnd_wait () at ../mesa-22.1.7/include/c11/threads_posix.h:155
#6  util_queue_thread_func() () at ../mesa-22.1.7/src/util/u_queue.c:294
#7  0x00007f3f0451b35c in impl_thrd_routine() () at ../mesa-22.1.7/include/c11/threads_posix.h:87
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 4 (Thread 0x7f3e757fa6c0 (LWP 486799)):
#0  0x00007f3f1da9b26b in _nl_find_msg (domain_file=domain_file@entry=0x55c16ca478c0, domainbinding=domainbinding@entry=0x0, msgid=msgid@entry=0x7f3f1dc0129f "Bad file descriptor", convert=convert@entry=1, lengthp=lengthp@entry=0x7f3e757f9058) at dcigettext.c:900
#1  0x00007f3f1da9bffb in __dcigettext (domainname=<optimized out>, msgid1=msgid1@entry=0x7f3f1dc0129f "Bad file descriptor", msgid2=msgid2@entry=0x0, plural=plural@entry=0, n=n@entry=0, category=category@entry=5) at dcigettext.c:709
#2  0x00007f3f1da9af33 in __GI___dcgettext (domainname=<optimized out>, msgid=msgid@entry=0x7f3f1dc0129f "Bad file descriptor", category=category@entry=5) at dcgettext.c:47
#3  0x00007f3f1db056cf in translate (loc=0x7f3f1dc424a0 <_nl_global_locale>, str=0x7f3f1dc0129f "Bad file descriptor") at strerror_l.c:29
#4  __GI___strerror_l (errnum=<optimized out>, loc=0x7f3f1dc424a0 <_nl_global_locale>) at strerror_l.c:52
#5  0x00007f3f1db05674 in strerror (errnum=<optimized out>) at strerror.c:24
#6  0x00007f3f1a63f757 in event_warn (fmt=0x7f3f1a663153 "epoll_wait") at /usr/src/debug/libevent-2.1.12-stable/log.c:118
#7  0x00007f3f1a64af36 in epoll_dispatch (base=0x7f3e54001d70, tv=<optimized out>) at /usr/src/debug/libevent-2.1.12-stable/epoll.c:471
#8  0x00007f3f1a648195 in event_base_loop (base=0x7f3e54001d70, flags=1) at /usr/src/debug/libevent-2.1.12-stable/event.c:1992
#9  0x00007f3f2213fc38 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_libevent.cc:258
#10 0x00007f3f220f5078 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:446
#11 0x00007f3f220cd014 in base::RunLoop::Run() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/run_loop.cc:124
#12 0x00007f3f22116d6d in base::Thread::Run(base::RunLoop*) () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:311
#13 base::Thread::ThreadMain() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:382
#14 0x00007f3f22130e0b in ThreadFunc() () at ./../../../../qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:87
#15 0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#16 0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 3 (Thread 0x7f3efe7fc6c0 (LWP 486761)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55c16caf36a8) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55c16caf36a8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55c16caf36a8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c16caf3658, cond=0x55c16caf3680) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55c16caf3680, mutex=0x55c16caf3658) at pthread_cond_wait.c:618
#5  0x00007f3f04521c5c in cnd_wait () at ../mesa-22.1.7/include/c11/threads_posix.h:155
#6  util_queue_thread_func() () at ../mesa-22.1.7/src/util/u_queue.c:294
#7  0x00007f3f0451b35c in impl_thrd_routine() () at ../mesa-22.1.7/include/c11/threads_posix.h:87
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 2 (Thread 0x7f3efd7fa6c0 (LWP 486763)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55c16caf36a8) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55c16caf36a8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f3f1daec36f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55c16caf36a8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f3f1daeeb20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c16caf3658, cond=0x55c16caf3680) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55c16caf3680, mutex=0x55c16caf3658) at pthread_cond_wait.c:618
#5  0x00007f3f04521c5c in cnd_wait () at ../mesa-22.1.7/include/c11/threads_posix.h:155
#6  util_queue_thread_func() () at ../mesa-22.1.7/src/util/u_queue.c:294
#7  0x00007f3f0451b35c in impl_thrd_routine() () at ../mesa-22.1.7/include/c11/threads_posix.h:87
#8  0x00007f3f1daef74d in start_thread (arg=<optimized out>) at pthread_create.c:442
#9  0x00007f3f1db71700 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 1 (Thread 0x7f3f08339100 (LWP 486752)):
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
#1  0x00007f3f1daf1503 in __pthread_kill_internal (signo=11, threadid=<optimized out>) at pthread_kill.c:78
#2  0x00007f3f1daa1958 in __GI_raise (sig=11) at ../sysdeps/posix/raise.c:26
#3  0x00007f3f1f254868 in KCrash::defaultCrashHandler(int) (sig=11) at /usr/src/debug/kcrash-5.98.0/src/kcrash.cpp:633
#4  0x00007f3f1daa1a00 in <signal handler called> () at /usr/lib/libc.so.6
#5  0x000055c16aa2603c in CantorShell::addWorksheet(QString const&) (this=0x55c16ccd75a0, backendName=<optimized out>) at /usr/src/debug/cantor-22.08.1/src/cantor.cpp:382
#6  0x000055c16aa2796b in CantorShell::load(QUrl const&) (this=0x55c16ccd75a0, url=...) at /usr/src/debug/cantor-22.08.1/src/cantor.cpp:111
#7  0x000055c16aa20bb0 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/cantor-22.08.1/src/main.cpp:133