Bug 401337 - Kmail crashes on hitting reply to email/new email
Summary: Kmail crashes on hitting reply to email/new email
Status: RESOLVED FIXED
Alias: None
Product: kontact
Classification: Applications
Component: general (show other bugs)
Version: unspecified
Platform: Ubuntu Linux
: NOR crash
Target Milestone: ---
Assignee: kdepim bugs
URL:
Keywords: drkonqi
Depends on:
Blocks:
 
Reported: 2018-11-23 15:26 UTC by Bret J. Savino
Modified: 2018-11-30 10:10 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed In: 18.12.0


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Description Bret J. Savino 2018-11-23 15:26:15 UTC
Application: kontact (5.9.90 rc)

Qt Version: 5.11.2
Frameworks Version: 5.53.0
Operating System: Linux 4.15.0-39-generic x86_64
Distribution: KDE neon Developer Edition

-- Information about the crash:
- What I was doing when the application crashed:
Trying to reply to an email.
- Unusual behavior I noticed:
After the bug report helper installed Backtrace, opened kmail, all 4 replies open, tried to close the first and plasma crashed (pannel is gone).

The crash can be reproduced every time.

-- 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 0x7fb68e917b80 (LWP 12455))]

Thread 33 (Thread 0x7fb61d7fa700 (LWP 14456)):
#0  0x00007fb686bbeed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fb61d7f9780, expected=0, futex_word=0x7fb61d7f9968) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fb61d7f9820, mutex=0x7fb61d7f9918, cond=0x7fb61d7f9940) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fb61d7f9940, mutex=0x7fb61d7f9918, abstime=0x7fb61d7f9820) at pthread_cond_wait.c:667
#3  0x00007fb67c24c917 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb67c24ebf7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb67c24ece2 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb67c253d61 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c2550ff in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb686bb86db in start_thread (arg=0x7fb61d7fa700) at pthread_create.c:463
#10 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 32 (Thread 0x7fb51a2f7700 (LWP 12556)):
#0  0x00007fb68b2a20b4 in __GI___libc_read (fd=130, buf=0x7fb51a2f6810, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fb684d30cd0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb684cec027 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb684cec4e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb684cec64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb68bdf904b in QEventDispatcherGlib::processEvents (this=0x7fb5dc00bfd0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007fb68bd9d30a in QEventLoop::exec (this=this@entry=0x7fb51a2f6a20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#7  0x00007fb68bbc8bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#8  0x00007fb68bbd3adb in QThreadPrivate::start (arg=0x559377048900) at thread/qthread_unix.cpp:367
#9  0x00007fb686bb86db in start_thread (arg=0x7fb51a2f7700) at pthread_create.c:463
#10 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 31 (Thread 0x7fb51d27a700 (LWP 12545)):
#0  0x00007fb68b2a6bf9 in __GI___poll (fds=0x7fb5400060e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb684cec539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb684cec64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb68bdf904b in QEventDispatcherGlib::processEvents (this=0x7fb540003980, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fb68bd9d30a in QEventLoop::exec (this=this@entry=0x7fb51d279a20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fb68bbc8bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007fb68bbd3adb in QThreadPrivate::start (arg=0x559372f46240) at thread/qthread_unix.cpp:367
#7  0x00007fb686bb86db in start_thread (arg=0x7fb51d27a700) at pthread_create.c:463
#8  0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7fb51da7b700 (LWP 12544)):
#0  0x00007fb684d32049 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb684cebf5c in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb684cec4e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb684cec64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb68bdf904b in QEventDispatcherGlib::processEvents (this=0x7fb53800b060, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fb68bd9d30a in QEventLoop::exec (this=this@entry=0x7fb51da7aa20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007fb68bbc8bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007fb68bbd3adb in QThreadPrivate::start (arg=0x559372f6e250) at thread/qthread_unix.cpp:367
#8  0x00007fb686bb86db in start_thread (arg=0x7fb51da7b700) at pthread_create.c:463
#9  0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7fb51e27c700 (LWP 12543)):
#0  0x00007fb684d32064 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb684cec52e in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb684cec64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb68bdf904b in QEventDispatcherGlib::processEvents (this=0x7fb530010cd0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fb68bd9d30a in QEventLoop::exec (this=this@entry=0x7fb51e27ba20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fb68bbc8bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007fb68bbd3adb in QThreadPrivate::start (arg=0x5593701b81b0) at thread/qthread_unix.cpp:367
#7  0x00007fb686bb86db in start_thread (arg=0x7fb51e27c700) at pthread_create.c:463
#8  0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7fb5202d6700 (LWP 12538)):
#0  0x00007fb684d32064 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb684cec4f6 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb684cec64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb68bdf904b in QEventDispatcherGlib::processEvents (this=0x7fb528027840, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fb68bd9d30a in QEventLoop::exec (this=this@entry=0x7fb5202d5a20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fb68bbc8bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007fb68bbd3adb in QThreadPrivate::start (arg=0x559370149bb0) at thread/qthread_unix.cpp:367
#7  0x00007fb686bb86db in start_thread (arg=0x7fb5202d6700) at pthread_create.c:463
#8  0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7fb523548700 (LWP 12523)):
#0  0x00007fb68b2a6bf9 in __GI___poll (fds=0x55936fe6d400, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb684cec539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb684cec64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb68bdf904b in QEventDispatcherGlib::processEvents (this=0x55936fe68e90, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fb68bd9d30a in QEventLoop::exec (this=this@entry=0x7fb523547a20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fb68bbc8bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007fb68bbd3adb in QThreadPrivate::start (arg=0x55936fe687c0) at thread/qthread_unix.cpp:367
#7  0x00007fb686bb86db in start_thread (arg=0x7fb523548700) at pthread_create.c:463
#8  0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7fb537160700 (LWP 12505)):
#0  0x00007fb684d32049 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb684cebc81 in g_main_context_query () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb684cec4b7 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb684cec64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb68bdf904b in QEventDispatcherGlib::processEvents (this=0x7fb528000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fb68bd9d30a in QEventLoop::exec (this=this@entry=0x7fb53715fa20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007fb68bbc8bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007fb68bbd3adb in QThreadPrivate::start (arg=0x55936f08b760) at thread/qthread_unix.cpp:367
#8  0x00007fb686bb86db in start_thread (arg=0x7fb537160700) at pthread_create.c:463
#9  0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7fb537961700 (LWP 12503)):
#0  0x00007fb68b2a6bf9 in __GI___poll (fds=0x7fb530003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb684cec539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb684cec64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb68bdf904b in QEventDispatcherGlib::processEvents (this=0x7fb530000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fb68bd9d30a in QEventLoop::exec (this=this@entry=0x7fb537960a20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fb68bbc8bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007fb68bbd3adb in QThreadPrivate::start (arg=0x55936f069f50) at thread/qthread_unix.cpp:367
#7  0x00007fb686bb86db in start_thread (arg=0x7fb537961700) at pthread_create.c:463
#8  0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7fb53c9e7700 (LWP 12502)):
#0  0x00007fb684ce9460 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb684cebe62 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb684cec4e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb684cec64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb68bdf904b in QEventDispatcherGlib::processEvents (this=0x7fb538000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fb68bd9d30a in QEventLoop::exec (this=this@entry=0x7fb53c9e6a20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007fb68bbc8bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007fb68bbd3adb in QThreadPrivate::start (arg=0x55936f090090) at thread/qthread_unix.cpp:367
#8  0x00007fb686bb86db in start_thread (arg=0x7fb53c9e7700) at pthread_create.c:463
#9  0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7fb5e20a9700 (LWP 12488)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fb68b2c4474 in ___fprintf_chk (fp=0x7fb68b57f8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7fb673e7b6a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007fb673e639ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fb673e63b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fb673e6546c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fb673e5b114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fb67c21ffc4 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c24020b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c26260f in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fb686bb86db in start_thread (arg=0x7fb5e20a9700) at pthread_create.c:463
#11 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fb5e37fe700 (LWP 12486)):
#0  0x00007fb686bbeed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fb5e37fd780, expected=0, futex_word=0x7fb5e37fd968) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fb5e37fd820, mutex=0x7fb5e37fd918, cond=0x7fb5e37fd940) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fb5e37fd940, mutex=0x7fb5e37fd918, abstime=0x7fb5e37fd820) at pthread_cond_wait.c:667
#3  0x00007fb67c24c917 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb67c24ebf7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb67c24ece2 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb67c253d61 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c2552e9 in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb686bb86db in start_thread (arg=0x7fb5e37fe700) at pthread_create.c:463
#10 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fb5fd7fa700 (LWP 12485)):
#0  0x00007fb686bbe9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fb675596fb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb675596f68, cond=0x7fb675596f90) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fb675596f90, mutex=0x7fb675596f68) at pthread_cond_wait.c:655
#3  0x00007fb6752a1954 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007fb6752a1999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007fb686bb86db in start_thread (arg=0x7fb5fd7fa700) at pthread_create.c:463
#6  0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fb5e3fff700 (LWP 12484)):
#0  0x00007fb6405a4d50 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#1  0x00007fb6405a584f in pa_fdsem_after_poll () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#2  0x00007fb6405bd2ed in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#3  0x00007fb65002c0d8 in pa_mainloop_dispatch () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fb65002c4ae in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fb65002c530 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fb65003a399 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#7  0x00007fb6405cd2a8 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#8  0x00007fb686bb86db in start_thread (arg=0x7fb5e3fff700) at pthread_create.c:463
#9  0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fb5fdffb700 (LWP 12483)):
#0  0x00007fb68b2a2187 in __GI___libc_write (fd=2, buf=0x7fb5fdff7c90, nbytes=39) at ../sysdeps/unix/sysv/linux/write.c:27
#1  0x00007fb68b21d1bd in _IO_new_file_write (f=0x7fb68b57e680 <_IO_2_1_stderr_>, data=0x7fb5fdff7c90, n=39) at fileops.c:1203
#2  0x00007fb68b21db2f in new_do_write (to_do=<optimized out>, data=0x7fb5fdff7c90 "[warn] epoll_wait: Bad file descriptor\n", fp=0x7fb68b57e680 <_IO_2_1_stderr_>) at fileops.c:457
#3  _IO_new_file_xsputn (f=0x7fb68b57e680 <_IO_2_1_stderr_>, data=<optimized out>, n=39) at fileops.c:1277
#4  0x00007fb68b1f0707 in buffered_vfprintf (s=s@entry=0x7fb68b57e680 <_IO_2_1_stderr_>, format=format@entry=0x7fb673e7b6a8 "[%s] %s\n", args=args@entry=0x7fb5fdffa250) at vfprintf.c:2350
#5  0x00007fb68b1ed726 in _IO_vfprintf_internal (s=s@entry=0x7fb68b57e680 <_IO_2_1_stderr_>, format=0x7fb673e7b6a8 "[%s] %s\n", ap=ap@entry=0x7fb5fdffa250) at vfprintf.c:1301
#6  0x00007fb68b2c44c6 in ___fprintf_chk (fp=0x7fb68b57e680 <_IO_2_1_stderr_>, flag=1, format=<optimized out>) at fprintf_chk.c:35
#7  0x00007fb673e639ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#8  0x00007fb673e63b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#9  0x00007fb673e6546c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#10 0x00007fb673e5b114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#11 0x00007fb67c21fed5 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fb67c24020b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007fb67c26260f in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007fb686bb86db in start_thread (arg=0x7fb5fdffb700) at pthread_create.c:463
#16 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fb5fe7fc700 (LWP 12482)):
#0  0x00007fb686bbeed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fb5fe7fb750, expected=0, futex_word=0x7fb5fe7fb938) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fb5fe7fb7f0, mutex=0x7fb5fe7fb8e8, cond=0x7fb5fe7fb910) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fb5fe7fb910, mutex=0x7fb5fe7fb8e8, abstime=0x7fb5fe7fb7f0) at pthread_cond_wait.c:667
#3  0x00007fb67c24c917 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb67c24ebf7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb67c2190f8 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb67c24020b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c26260f in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb686bb86db in start_thread (arg=0x7fb5fe7fc700) at pthread_create.c:463
#10 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fb5feffd700 (LWP 12481)):
#0  0x00007fb686bbeed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fb5feffc750, expected=0, futex_word=0x7fb5feffc938) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fb5feffc7f0, mutex=0x7fb5feffc8e8, cond=0x7fb5feffc910) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fb5feffc910, mutex=0x7fb5feffc8e8, abstime=0x7fb5feffc7f0) at pthread_cond_wait.c:667
#3  0x00007fb67c24c917 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb67c24ebf7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb67c2190f8 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb67c24020b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c26260f in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb686bb86db in start_thread (arg=0x7fb5feffd700) at pthread_create.c:463
#10 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fb5ff7fe700 (LWP 12480)):
#0  0x00007fb686bbe9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55936edf81d8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55936edf8118, cond=0x55936edf81b0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55936edf81b0, mutex=0x55936edf8118) at pthread_cond_wait.c:655
#3  0x00007fb67c24c849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb67cd04078 in cc::SingleThreadTaskGraphRunner::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb67c26244c in base::SimpleThread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb686bb86db in start_thread (arg=0x7fb5ff7fe700) at pthread_create.c:463
#8  0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fb5fffff700 (LWP 12479)):
#0  0x00007fb686bbe9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fb5ffffe978) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb5ffffe928, cond=0x7fb5ffffe950) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fb5ffffe950, mutex=0x7fb5ffffe928) at pthread_cond_wait.c:655
#3  0x00007fb67c24c849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb67c24ec0c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb67c24ec9f in base::WaitableEvent::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb67c253d78 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c2552e9 in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb686bb86db in start_thread (arg=0x7fb5fffff700) at pthread_create.c:463
#10 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fb61dffb700 (LWP 12476)):
#0  0x00007fb686bbe9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fb61dffa918) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb61dffa8c8, cond=0x7fb61dffa8f0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fb61dffa8f0, mutex=0x7fb61dffa8c8) at pthread_cond_wait.c:655
#3  0x00007fb67c24c849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb67c24ec0c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb67c24ec9f in base::WaitableEvent::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb67c2190ea in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c24020b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c26260f in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fb686bb86db in start_thread (arg=0x7fb61dffb700) at pthread_create.c:463
#11 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fb61e7fc700 (LWP 12475)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fb68b2c4474 in ___fprintf_chk (fp=0x7fb68b57f8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7fb673e7b6a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007fb673e639ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fb673e63b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fb673e6546c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fb673e5b114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fb67c21fe81 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c24020b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67b31923a in content::BrowserThreadImpl::IOThreadRun(base::RunLoop*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb67b31985f in content::BrowserThreadImpl::Run(base::RunLoop*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fb67c2626c8 in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fb686bb86db in start_thread (arg=0x7fb61e7fc700) at pthread_create.c:463
#13 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fb61effd700 (LWP 12474)):
#0  0x00007fb686bbe9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fb61effc978) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb61effc928, cond=0x7fb61effc950) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fb61effc950, mutex=0x7fb61effc928) at pthread_cond_wait.c:655
#3  0x00007fb67c24c849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb67c24ec0c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb67c24ec9f in base::WaitableEvent::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb67c253d78 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c2550ff in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb686bb86db in start_thread (arg=0x7fb61effd700) at pthread_create.c:463
#10 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fb61f7fe700 (LWP 12473)):
#0  0x00007fb686bbe9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fb61f7fd978) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb61f7fd928, cond=0x7fb61f7fd950) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fb61f7fd950, mutex=0x7fb61f7fd928) at pthread_cond_wait.c:655
#3  0x00007fb67c24c849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb67c24ec0c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb67c24ec9f in base::WaitableEvent::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb67c253d78 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c2552e9 in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb686bb86db in start_thread (arg=0x7fb61f7fe700) at pthread_create.c:463
#10 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fb61ffff700 (LWP 12472)):
#0  0x00007fb686bbe9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fb61fffe978) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb61fffe928, cond=0x7fb61fffe950) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fb61fffe950, mutex=0x7fb61fffe928) at pthread_cond_wait.c:655
#3  0x00007fb67c24c849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb67c24ec0c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb67c24ec9f in base::WaitableEvent::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb67c253d78 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c2550ff in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb686bb86db in start_thread (arg=0x7fb61ffff700) at pthread_create.c:463
#10 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fb640ff9700 (LWP 12471)):
#0  0x00007fb686bbe9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fb640ff8978) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb640ff8928, cond=0x7fb640ff8950) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fb640ff8950, mutex=0x7fb640ff8928) at pthread_cond_wait.c:655
#3  0x00007fb67c24c849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb67c24ec0c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb67c24ec9f in base::WaitableEvent::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb67c253d78 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c2550ff in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb686bb86db in start_thread (arg=0x7fb640ff9700) at pthread_create.c:463
#10 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fb6417fa700 (LWP 12470)):
#0  0x00007fb686bbe9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fb6417f9978) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb6417f9928, cond=0x7fb6417f9950) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fb6417f9950, mutex=0x7fb6417f9928) at pthread_cond_wait.c:655
#3  0x00007fb67c24c849 in base::ConditionVariable::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb67c24ec0c in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb67c24ec9f in base::WaitableEvent::Wait() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb67c253d78 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c2550ff in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb686bb86db in start_thread (arg=0x7fb6417fa700) at pthread_create.c:463
#10 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fb641ffb700 (LWP 12469)):
#0  0x00007fb686bbeed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fb641ffa780, expected=0, futex_word=0x7fb641ffa968) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fb641ffa820, mutex=0x7fb641ffa918, cond=0x7fb641ffa940) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fb641ffa940, mutex=0x7fb641ffa918, abstime=0x7fb641ffa820) at pthread_cond_wait.c:667
#3  0x00007fb67c24c917 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb67c24ebf7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb67c24ece2 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb67c253d61 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c2552e9 in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb686bb86db in start_thread (arg=0x7fb641ffb700) at pthread_create.c:463
#10 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fb6427fc700 (LWP 12468)):
#0  0x00007fb686bbeed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fb6427fb780, expected=0, futex_word=0x7fb6427fb968) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fb6427fb820, mutex=0x7fb6427fb918, cond=0x7fb6427fb940) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fb6427fb940, mutex=0x7fb6427fb918, abstime=0x7fb6427fb820) at pthread_cond_wait.c:667
#3  0x00007fb67c24c917 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb67c24ebf7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb67c24ece2 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb67c253d61 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c2552e9 in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb686bb86db in start_thread (arg=0x7fb6427fc700) at pthread_create.c:463
#10 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fb6437fe700 (LWP 12466)):
#0  0x00007fb686bbeed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fb6437fd780, expected=0, futex_word=0x7fb6437fd968) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fb6437fd820, mutex=0x7fb6437fd918, cond=0x7fb6437fd940) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fb6437fd940, mutex=0x7fb6437fd918, abstime=0x7fb6437fd820) at pthread_cond_wait.c:667
#3  0x00007fb67c24c917 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb67c24ebf7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb67c24ece2 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb67c253d61 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c2552e9 in base::internal::SchedulerWorker::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb686bb86db in start_thread (arg=0x7fb6437fe700) at pthread_create.c:463
#10 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fb643fff700 (LWP 12465)):
#0  0x00007fb68b2af712 in __GI___tfind (key=key@entry=0x7fb643ffe660, vrootp=vrootp@entry=0x7fb68b57ec48 <root>, compar=compar@entry=0x7fb68b1c2da0 <transcmp>) at tsearch.c:395
#1  0x00007fb68b1c43ff in __dcigettext (domainname=0x7fb68b345d14 <_libc_intl_domainname> "libc", msgid1=0x7fb68b34618a "Bad file descriptor", msgid2=msgid2@entry=0x0, plural=plural@entry=0, n=n@entry=0, category=category@entry=5) at dcigettext.c:570
#2  0x00007fb68b1c2d7f in __GI___dcgettext (domainname=<optimized out>, msgid=<optimized out>, category=category@entry=5) at dcgettext.c:47
#3  0x00007fb68b22fb28 in __GI___strerror_r (errnum=errnum@entry=9, buf=buf@entry=0x0, buflen=buflen@entry=0) at _strerror.c:71
#4  0x00007fb68b22fa4f in strerror (errnum=9) at strerror.c:31
#5  0x00007fb673e63b31 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fb673e6546c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#7  0x00007fb673e5b114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#8  0x00007fb67c21fed5 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb67c24020b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fb67c26260f in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fb686bb86db in start_thread (arg=0x7fb643fff700) at pthread_create.c:463
#13 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fb650a58700 (LWP 12464)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fb68b2c4474 in ___fprintf_chk (fp=0x7fb68b57f8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7fb673e7b6a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007fb673e639ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fb673e63b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fb673e6546c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fb673e5b114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fb67c21fe81 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb67c24020b in base::RunLoop::Run() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb67c26260f in base::Thread::ThreadMain() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb67c25dff1 in base::(anonymous namespace)::ThreadFunc(void*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fb686bb86db in start_thread (arg=0x7fb650a58700) at pthread_create.c:463
#11 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fb653d2c700 (LWP 12457)):
#0  0x00007fb68b2a20b4 in __GI___libc_read (fd=8, buf=0x7fb653d2b7e0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fb684d30cd0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb684cec027 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb684cec4e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb684cec64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb68bdf904b in QEventDispatcherGlib::processEvents (this=0x7fb64c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007fb68bd9d30a in QEventLoop::exec (this=this@entry=0x7fb653d2b9f0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#7  0x00007fb68bbc8bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#8  0x00007fb68a4e9e45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007fb68bbd3adb in QThreadPrivate::start (arg=0x7fb68a761d60) at thread/qthread_unix.cpp:367
#10 0x00007fb686bb86db in start_thread (arg=0x7fb653d2c700) at pthread_create.c:463
#11 0x00007fb68b2b388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fb68e917b80 (LWP 12455)):
[KCrash Handler]
#6  QFlagPointer<QQmlAbstractBinding>::clearFlag (this=<optimized out>) at ../../include/QtQml/5.11.2/QtQml/private/../../../../../src/qml/qml/ftw/qflagpointer_p.h:164
#7  QFlagPointer<QQmlAbstractBinding>::setFlagValue (v=false, this=<optimized out>) at ../../include/QtQml/5.11.2/QtQml/private/../../../../../src/qml/qml/ftw/qflagpointer_p.h:171
#8  QQmlAbstractBinding::setAddedToObject (v=false, this=<optimized out>) at ../../include/QtQml/5.11.2/QtQml/private/../../../../../src/qml/qml/qqmlabstractbinding_p.h:131
#9  QQmlData::destroyed (this=0x5593774d3de0, object=0x5593774df550) at qml/qqmlengine.cpp:1799
#10 0x00007fb68bdd5197 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:913
#11 0x00007fb68bdd5ad9 in QObject::~QObject (this=0x5593774df550, __in_chrg=<optimized out>) at kernel/qobject.cpp:1035
#12 0x00007fb68bdcec00 in QObject::event (this=0x5593774df550, e=<optimized out>) at kernel/qobject.cpp:1242
#13 0x00007fb68cb2be1c in QApplicationPrivate::notify_helper (this=this@entry=0x55936e9ade80, receiver=receiver@entry=0x5593774df550, e=e@entry=0x559377afc640) at kernel/qapplication.cpp:3727
#14 0x00007fb68cb333ef in QApplication::notify (this=0x7fff39ee2850, receiver=0x5593774df550, e=0x559377afc640) at kernel/qapplication.cpp:3486
#15 0x00007fb68bd9efe8 in QCoreApplication::notifyInternal2 (receiver=0x5593774df550, event=event@entry=0x559377afc640) at kernel/qcoreapplication.cpp:1048
#16 0x00007fb68bda1b2d in QCoreApplication::sendEvent (event=0x559377afc640, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x55936e9ac490) at kernel/qcoreapplication.cpp:1745
#18 0x00007fb682286e7d in QQuickRenderControlPrivate::windowDestroyed (this=this@entry=0x559377076e90) at items/qquickrendercontrol.cpp:190
#19 0x00007fb6822871b0 in QQuickRenderControlPrivate::windowDestroyed (this=0x559377076e90) at items/qquickrendercontrol.cpp:176
#20 QQuickRenderControl::~QQuickRenderControl (this=0x559377076e70, __in_chrg=<optimized out>) at items/qquickrendercontrol.cpp:181
#21 0x00007fb682a71483 in QQuickWidgetRenderControl::~QQuickWidgetRenderControl (this=0x559377076e70, __in_chrg=<optimized out>) at qquickwidget.cpp:79
#22 QQuickWidgetRenderControl::~QQuickWidgetRenderControl (this=0x559377076e70, __in_chrg=<optimized out>) at qquickwidget.cpp:79
#23 0x00007fb682a6f7cb in QQuickWidgetPrivate::~QQuickWidgetPrivate (this=0x559377763bd0, __in_chrg=<optimized out>) at qquickwidget.cpp:219
#24 0x00007fb682a6f849 in QQuickWidgetPrivate::~QQuickWidgetPrivate (this=0x559377763bd0, __in_chrg=<optimized out>) at qquickwidget.cpp:227
#25 0x00007fb68bdd5733 in QScopedPointerDeleter<QObjectData>::cleanup (pointer=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:60
#26 QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::~QScopedPointer (this=0x55937763c928, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:107
#27 QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:884
#28 0x00007fb68cb66466 in QWidget::~QWidget (this=0x55937763c920, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1564
#29 0x00007fb689bcfb41 in non-virtual thunk to QtWebEngineCore::RenderWidgetHostViewQtDelegateWidget::~RenderWidgetHostViewQtDelegateWidget() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineWidgets.so.5
#30 0x00007fb67ac6bacf in QtWebEngineCore::RenderWidgetHostViewQt::~RenderWidgetHostViewQt() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#31 0x00007fb67ac6bc61 in QtWebEngineCore::RenderWidgetHostViewQt::~RenderWidgetHostViewQt() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#32 0x00007fb67b6419bb in content::RenderWidgetHostImpl::Destroy(bool) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#33 0x00007fb67b631307 in content::RenderViewHostImpl::ShutdownAndDestroy() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#34 0x00007fb67b4343d7 in content::FrameTree::ReleaseRenderViewHostRef(content::RenderViewHostImpl*) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#35 0x00007fb67b46faf9 in content::RenderFrameHostImpl::~RenderFrameHostImpl() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#36 0x00007fb67b4702e1 in content::RenderFrameHostImpl::~RenderFrameHostImpl() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#37 0x00007fb67b47e770 in content::RenderFrameHostManager::~RenderFrameHostManager() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#38 0x00007fb67b438983 in content::FrameTreeNode::~FrameTreeNode() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#39 0x00007fb67b4327bb in content::FrameTree::~FrameTree() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#40 0x00007fb67b7497bb in content::WebContentsImpl::~WebContentsImpl() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#41 0x00007fb67b749a61 in content::WebContentsImpl::~WebContentsImpl() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#42 0x00007fb67ac84d38 in QtWebEngineCore::WebContentsAdapterPrivate::~WebContentsAdapterPrivate() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#43 0x00007fb67ac8718f in QtWebEngineCore::WebContentsAdapter::~WebContentsAdapter() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#44 0x00007fb689bc2a02 in QWebEnginePagePrivate::~QWebEnginePagePrivate() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineWidgets.so.5
#45 0x00007fb689bc2a79 in QWebEnginePagePrivate::~QWebEnginePagePrivate() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineWidgets.so.5
#46 0x00007fb689bbe5d5 in QWebEnginePage::~QWebEnginePage() () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineWidgets.so.5
#47 0x00007fb544171be7 in TemplateParser::TemplateWebEnginePage::~TemplateWebEnginePage (this=0x559377506b20, __in_chrg=<optimized out>) at ./templateparser/src/templatewebenginepage.cpp:52
#48 TemplateParser::TemplateWebEnginePage::~TemplateWebEnginePage (this=0x559377506b20, __in_chrg=<optimized out>) at ./templateparser/src/templatewebenginepage.cpp:54
#49 0x00007fb68bdcbc4b in QObjectPrivate::deleteChildren (this=this@entry=0x55937770e8c0) at kernel/qobject.cpp:1997
#50 0x00007fb68cb663dc in QWidget::~QWidget (this=0x5593777785a0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1705
#51 0x00007fb544171679 in TemplateParser::TemplateWebEngineView::~TemplateWebEngineView (this=0x5593777785a0, __in_chrg=<optimized out>) at ./templateparser/src/templatewebengineview.cpp:53
#52 0x00007fb544173231 in TemplateParser::TemplateParserExtractHtmlInfo::~TemplateParserExtractHtmlInfo (this=0x5593774d3de0, __in_chrg=<optimized out>) at ./templateparser/src/templateparserextracthtmlinfo.cpp:36
#53 0x00007fb5441734a9 in TemplateParser::TemplateParserExtractHtmlInfo::~TemplateParserExtractHtmlInfo (this=0x5593774d3de0, __in_chrg=<optimized out>) at ./templateparser/src/templateparserextracthtmlinfo.cpp:38
#54 0x00007fb68bdcbc4b in QObjectPrivate::deleteChildren (this=this@entry=0x5593774e8d00) at kernel/qobject.cpp:1997
#55 0x00007fb68bdd56eb in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1025
#56 0x00007fb544150da9 in TemplateParser::TemplateParserJob::~TemplateParserJob (this=0x5593774df550, __in_chrg=<optimized out>) at ./templateparser/src/templateparserjob.h:142
#57 0x00007fb68bdcbc4b in QObjectPrivate::deleteChildren (this=this@entry=0x559377640cf0) at kernel/qobject.cpp:1997
#58 0x00007fb68bdd56eb in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1025
#59 0x00007fb544885d89 in MessageComposer::MessageFactoryReplyJob::~MessageFactoryReplyJob (this=0x5593774eadf0, __in_chrg=<optimized out>) at ./messagecomposer/src/helper/messagefactoryreplyjob.cpp:34
#60 0x00007fb68bdcec00 in QObject::event (this=0x5593774eadf0, e=<optimized out>) at kernel/qobject.cpp:1242
#61 0x00007fb68cb2be1c in QApplicationPrivate::notify_helper (this=this@entry=0x55936e9ade80, receiver=receiver@entry=0x5593774eadf0, e=e@entry=0x5593777265f0) at kernel/qapplication.cpp:3727
#62 0x00007fb68cb333ef in QApplication::notify (this=0x7fff39ee2850, receiver=0x5593774eadf0, e=0x5593777265f0) at kernel/qapplication.cpp:3486
#63 0x00007fb68bd9efe8 in QCoreApplication::notifyInternal2 (receiver=0x5593774eadf0, event=event@entry=0x5593777265f0) at kernel/qcoreapplication.cpp:1048
#64 0x00007fb68bda1b2d in QCoreApplication::sendEvent (event=0x5593777265f0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#65 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x55936e9ac490) at kernel/qcoreapplication.cpp:1745
#66 0x00007fb68bda20e8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1599
#67 0x00007fb68bdf99f3 in postEventSourceDispatch (s=0x55936ea41280) at kernel/qeventdispatcher_glib.cpp:276
#68 0x00007fb684cec387 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#69 0x00007fb684cec5c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#70 0x00007fb684cec64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#71 0x00007fb68bdf902f in QEventDispatcherGlib::processEvents (this=0x55936ea44d90, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#72 0x00007fb660c7a761 in QPAEventDispatcherGlib::processEvents (this=0x55936ea44d90, flags=...) at qeventdispatcher_glib.cpp:69
#73 0x00007fb68bd9d30a in QEventLoop::exec (this=this@entry=0x7fff39ee2720, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#74 0x00007fb68bda64d0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1336
#75 0x000055936e1754c5 in main (argc=<optimized out>, argv=<optimized out>) at ./src/main.cpp:229

Reported using DrKonqi
Comment 1 Allen Winter 2018-11-28 14:58:27 UTC
ditto. happening recently with a self-built version from master against Fedora28 provided Qt5.11.1

makes kmail unusable
Comment 2 Allen Winter 2018-11-28 16:32:51 UTC
forgot to mention that "New Message" also crashes with the same bt
Comment 3 Allen Winter 2018-11-28 21:45:23 UTC
Here is my hack to get kmail working again (I doubt this is a kmail bug -- more likely a QWebEngine bug).  Be warned: you will see memory leaks with this patch.

iff --git a/templateparser/src/templateparserextracthtmlinfo.cpp b/templateparser/src/templateparserextracthtmlinfo.cpp
index 72dddbdc..2f7c59e8 100644
--- a/templateparser/src/templateparserextracthtmlinfo.cpp
+++ b/templateparser/src/templateparserextracthtmlinfo.cpp
@@ -31,8 +31,8 @@ TemplateParserExtractHtmlInfo::TemplateParserExtractHtmlInfo(QObject *parent)
 
 TemplateParserExtractHtmlInfo::~TemplateParserExtractHtmlInfo()
 {
-    delete mTemplateWebEngineView;
-    delete mExtractHtmlElementWebEngineView;
+    //delete mTemplateWebEngineView;
+    //delete mExtractHtmlElementWebEngineView;
 }
 
 void TemplateParserExtractHtmlInfo::setHtmlForExtractingTextPlain(const QString &html)
Comment 4 Bret J. Savino 2018-11-28 23:25:13 UTC
Same here (on the new mail crash).  I wish i could understand your patch, mine was Kubuntu 18.10 on a separate partition.  The new mesa looks awesome on an external.  Kmail has such potential, this is the second major bug in as many months with Neon.  Not complaining but maybe I juwt cant hack Neon.
Comment 5 Laurent Montel 2018-11-29 06:43:36 UTC
(In reply to Allen Winter from comment #3)
> Here is my hack to get kmail working again (I doubt this is a kmail bug --
> more likely a QWebEngine bug).  Be warned: you will see memory leaks with
> this patch.
> 
> iff --git a/templateparser/src/templateparserextracthtmlinfo.cpp
> b/templateparser/src/templateparserextracthtmlinfo.cpp
> index 72dddbdc..2f7c59e8 100644
> --- a/templateparser/src/templateparserextracthtmlinfo.cpp
> +++ b/templateparser/src/templateparserextracthtmlinfo.cpp
> @@ -31,8 +31,8 @@
> TemplateParserExtractHtmlInfo::TemplateParserExtractHtmlInfo(QObject *parent)
>  
>  TemplateParserExtractHtmlInfo::~TemplateParserExtractHtmlInfo()
>  {
> -    delete mTemplateWebEngineView;
> -    delete mExtractHtmlElementWebEngineView;
> +    //delete mTemplateWebEngineView;
> +    //delete mExtractHtmlElementWebEngineView;
>  }
>  
>  void TemplateParserExtractHtmlInfo::setHtmlForExtractingTextPlain(const
> QString &html)

For sure a mem leak => it's not a good patch for source.
did you try a deleteLater() ?
Comment 6 Allen Winter 2018-11-29 14:12:00 UTC
right.  my hack was just desperation.
I tried the deleteLater() solution with Laurent's help and it seems to work fine.
I will commit.
Comment 7 Allen Winter 2018-11-29 14:25:11 UTC
Git commit 32bbd45cdbbb8c60105ced80debab1eb6ed40226 by Allen Winter.
Committed on 29/11/2018 at 14:21.
Pushed by winterz into branch 'Applications/18.12'.

templateparserextracthtmlinfo.cpp - deleteLater in dtor

ack'd by Laurent
FIXED-IN: 18.12.0

M  +2    -2    templateparser/src/templateparserextracthtmlinfo.cpp

https://commits.kde.org/messagelib/32bbd45cdbbb8c60105ced80debab1eb6ed40226
Comment 8 fhess 2018-11-30 10:10:02 UTC
Thanks for the quick fix and your hard work! 

Just updated to 

kmail (4:18.08.3+p18.04+git20181130.0018-0)

and can confirm problem is fixed (new and reply).