[kmail2] [Bug 404052] New: Crash after filtering inbox, probably related to Qt WebEngine integration

Martin Steigerwald bugzilla_noreply at kde.org
Thu Feb 7 10:28:24 GMT 2019


https://bugs.kde.org/show_bug.cgi?id=404052

            Bug ID: 404052
           Summary: Crash after filtering inbox, probably related to Qt
                    WebEngine integration
           Product: kmail2
           Version: 5.9.1
          Platform: Debian stable
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: Martin at Lichtvoll.de
  Target Milestone: ---

Application: kmail (5.9.1)

Qt Version: 5.11.3
Frameworks Version: 5.54.0
Operating System: Linux 5.0.0-rc4-tp520 x86_64
Distribution: Debian GNU/Linux buster/sid

-- Information about the crash:
Please note that this may be a packaging issue within Debian Unstable. However,
I am reporting it upstream nonetheless, cause it may not be and this way I may
receive some hints on what to fix within Debian in case it indead is a
packaging issue.

# What I was doing when the application crashed:
- I selected all new mails in inbox and hit Ctrl-J to filter them. The inbox is
part of a maildir resource that retrieved mails from a POP3 resource.

# Actual results (sometimes, but often enough, several times a day)
- KMail/Akonadi starts filtering the mail into their relevant folders.
- KMail crashes.

Background on that:
- I usually have most filters not act on any new mails, but just manually, …
- so I first see all mail in inbox to skim through it and after I did…
- I select them all and initiate filtring then.

# Expected results
- KMail completes filtering and stays around after that :)

# Further information
- KDEPIM 18.03.3 (with a bit of 18.03.1, just upgrading currently, I bet it
does not affect the bug, as this issue happened with KDEPIM 18.03.1 as well,
but when it indeed fixes the issue, I close this report).
- KDE Frameworks 5.5.4
- KDE Plasma 5.14.5
- Qt 5.11.3
- on Debian Unstable

The crash can be reproduced sometimes.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fb3d6b8bf00 (LWP 28434))]

Thread 32 (Thread 0x7fb2ae3fb700 (LWP 6853)):
#0  0x00007fb3ed066399 in futex_reltimed_wait_cancelable (private=0,
reltime=0x7fb2ae3fa400, expected=0, futex_word=0x7fb2ae3fa5e8) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fb3ed066399 in __pthread_cond_wait_common (abstime=0x7fb2ae3fa4a0,
mutex=0x7fb2ae3fa598, cond=0x7fb2ae3fa5c0) at pthread_cond_wait.c:533
#2  0x00007fb3ed066399 in __pthread_cond_timedwait (cond=0x7fb2ae3fa5c0,
mutex=0x7fb2ae3fa598, abstime=0x7fb2ae3fa4a0) at pthread_cond_wait.c:667
#3  0x00007fb3e66b2a37 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb3e66b530a in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb3e66b53f2 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb3e66b9981 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66bac7f in base::internal::SchedulerWorker::Thread::ThreadMain()
() at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#10 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 31 (Thread 0x7fb2aa132700 (LWP 6754)):
#0  0x00007fb3ed066399 in futex_reltimed_wait_cancelable (private=0,
reltime=0x7fb2aa131400, expected=0, futex_word=0x7fb2aa1315e8) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fb3ed066399 in __pthread_cond_wait_common (abstime=0x7fb2aa1314a0,
mutex=0x7fb2aa131598, cond=0x7fb2aa1315c0) at pthread_cond_wait.c:533
#2  0x00007fb3ed066399 in __pthread_cond_timedwait (cond=0x7fb2aa1315c0,
mutex=0x7fb2aa131598, abstime=0x7fb2aa1314a0) at pthread_cond_wait.c:667
#3  0x00007fb3e66b2a37 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb3e66b530a in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb3e66b53f2 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb3e66b9981 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66bae61 in base::internal::SchedulerWorker::Thread::ThreadMain()
() at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#10 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7fb2ad139700 (LWP 6672)):
#0  0x00007fb3ed066399 in futex_reltimed_wait_cancelable (private=0,
reltime=0x7fb2ad138400, expected=0, futex_word=0x7fb2ad1385e8) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fb3ed066399 in __pthread_cond_wait_common (abstime=0x7fb2ad1384a0,
mutex=0x7fb2ad138598, cond=0x7fb2ad1385c0) at pthread_cond_wait.c:533
#2  0x00007fb3ed066399 in __pthread_cond_timedwait (cond=0x7fb2ad1385c0,
mutex=0x7fb2ad138598, abstime=0x7fb2ad1384a0) at pthread_cond_wait.c:667
#3  0x00007fb3e66b2a37 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb3e66b530a in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb3e66b53f2 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb3e66b9981 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66bae61 in base::internal::SchedulerWorker::Thread::ThreadMain()
() at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#10 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7fb2aa933700 (LWP 5878)):
#0  0x00007fb3ef817764 in __GI___libc_read (nbytes=16, buf=0x7fb2aa932480,
fd=102) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007fb3ef817764 in __GI___libc_read (fd=102, buf=0x7fb2aa932480,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fb3ec521950 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb3ec4dbaef in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb3ec4dbfc0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb3ec4dc13c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fb3efd2e16b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fb3efcdb14b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fb3efb2a106 in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fb3efb33cd7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#11 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7fb2aebfc700 (LWP 8764)):
#0  0x00007fb3ef817807 in __GI___libc_write (nbytes=47, buf=0x7fb2aebf88f0,
fd=2) at ../sysdeps/unix/sysv/linux/write.c:26
#1  0x00007fb3ef817807 in __GI___libc_write (fd=2, buf=0x7fb2aebf88f0,
nbytes=47) at ../sysdeps/unix/sysv/linux/write.c:24
#2  0x00007fb3ef7a861d in _IO_new_file_write (f=0x7fb3ef8e9680
<_IO_2_1_stderr_>, data=0x7fb2aebf88f0, n=47) at fileops.c:1183
#3  0x00007fb3ef7a79bf in new_do_write (fp=fp at entry=0x7fb3ef8e9680
<_IO_2_1_stderr_>, data=data at entry=0x7fb2aebf88f0 "[warn] epoll_wait:
Ung\303\274ltiger Dateideskriptor\n", to_do=to_do at entry=47) at libioP.h:839
#4  0x00007fb3ef7a8d4e in _IO_new_file_xsputn (n=47, data=<optimized out>,
f=0x7fb3ef8e9680 <_IO_2_1_stderr_>) at fileops.c:1262
#5  0x00007fb3ef7a8d4e in _IO_new_file_xsputn (f=0x7fb3ef8e9680
<_IO_2_1_stderr_>, data=<optimized out>, n=47) at fileops.c:1204
#6  0x00007fb3ef77faf2 in buffered_vfprintf (s=s at entry=0x7fb3ef8e9680
<_IO_2_1_stderr_>, format=format at entry=0x7fb3e1651848 "[%s] %s\n",
args=args at entry=0x7fb2aebfaeb0) at ../libio/libioP.h:839
#7  0x00007fb3ef77d062 in _IO_vfprintf_internal (s=s at entry=0x7fb3ef8e9680
<_IO_2_1_stderr_>, format=0x7fb3e1651848 "[%s] %s\n",
ap=ap at entry=0x7fb2aebfaeb0) at vfprintf.c:1296
#8  0x00007fb3ef835846 in ___fprintf_chk (fp=0x7fb3ef8e9680 <_IO_2_1_stderr_>,
flag=1, format=<optimized out>) at fprintf_chk.c:35
#9  0x00007fb3e1639a5a in event_logv_ () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#10 0x00007fb3e1639c34 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#11 0x00007fb3e163b588 in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#12 0x00007fb3e1631329 in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#13 0x00007fb3e66877cd in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007fb3e66a6c8b in base::RunLoop::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007fb3e66c8204 in base::Thread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#16 0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#17 0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#18 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7fb35d2b6700 (LWP 28502)):
#0  0x00007fb3ed065fac in futex_wait_cancelable (private=0, expected=0,
futex_word=0x7fb3e401dfb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fb3ed065fac in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7fb3e401df68, cond=0x7fb3e401df90) at pthread_cond_wait.c:502
#2  0x00007fb3ed065fac in __pthread_cond_wait (cond=0x7fb3e401df90,
mutex=0x7fb3e401df68) at pthread_cond_wait.c:655
#3  0x00007fb3e3f26e4a in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007fb3e3f26e69 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#6  0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7fb35dd9f700 (LWP 28489)):
#0  0x00007fb3f1047240 in __tls_get_addr () at
../sysdeps/x86_64/tls_get_addr.S:30
#1  0x00007fb3efb33056 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fb3efd2e611 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fb3ec4db9f1 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb3ec4dbfc0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb3ec4dc13c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fb3efd2e16b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fb3efcdb14b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fb3efb2a106 in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fb3efb33cd7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#11 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7fb35f7fe700 (LWP 28471)):
#0  0x00007fb3ef833a6b in __lll_lock_wait_private () at
../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63
#1  0x00007fb3ef8357f4 in ___fprintf_chk (fp=0x7fb3ef8ea8b0
<_IO_stdfile_2_lock>, flag=1, format=0x7fb3e1651848 "[%s] %s\n") at
fprintf_chk.c:30
#2  0x00007fb3e1639a5a in event_logv_ () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fb3e1639c34 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fb3e163b588 in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fb3e1631329 in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fb3e66877cd in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66a6c8b in base::RunLoop::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c8204 in base::Thread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#11 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7fb35ffff700 (LWP 28470)):
#0  0x00007fb3ef817764 in __GI___libc_read (nbytes=10, buf=0x7fb35fffe4de,
fd=65) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007fb3ef817764 in __GI___libc_read (fd=65, buf=0x7fb35fffe4de,
nbytes=10) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fb3dd373fc1 in pa_read () at
/usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so
#3  0x00007fb3e1c4350e in pa_mainloop_prepare () at
/usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fb3e1c43f70 in pa_mainloop_iterate () at
/usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fb3e1c44030 in pa_mainloop_run () at
/usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fb3e1c52059 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#7  0x00007fb3dd3a34d8 in  () at
/usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so
#8  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#9  0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7fb37cff9700 (LWP 28469)):
#0  0x00007fb3ed066399 in futex_reltimed_wait_cancelable (private=0,
reltime=0x7fb37cff83c0, expected=0, futex_word=0x7fb37cff85a8) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fb3ed066399 in __pthread_cond_wait_common (abstime=0x7fb37cff8460,
mutex=0x7fb37cff8558, cond=0x7fb37cff8580) at pthread_cond_wait.c:533
#2  0x00007fb3ed066399 in __pthread_cond_timedwait (cond=0x7fb37cff8580,
mutex=0x7fb37cff8558, abstime=0x7fb37cff8460) at pthread_cond_wait.c:667
#3  0x00007fb3e66b2a37 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb3e66b530a in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb3e6687370 in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb3e66a6c8b in base::RunLoop::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66c8204 in base::Thread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#10 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fb37d7fa700 (LWP 28468)):
#0  0x00007fb3ed066399 in futex_reltimed_wait_cancelable (private=0,
reltime=0x7fb37d7f93c0, expected=0, futex_word=0x7fb37d7f95a8) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fb3ed066399 in __pthread_cond_wait_common (abstime=0x7fb37d7f9460,
mutex=0x7fb37d7f9558, cond=0x7fb37d7f9580) at pthread_cond_wait.c:533
#2  0x00007fb3ed066399 in __pthread_cond_timedwait (cond=0x7fb37d7f9580,
mutex=0x7fb37d7f9558, abstime=0x7fb37d7f9460) at pthread_cond_wait.c:667
#3  0x00007fb3e66b2a37 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb3e66b530a in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb3e6687370 in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb3e66a6c8b in base::RunLoop::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66c8204 in base::Thread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#10 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fb37dffb700 (LWP 28467)):
#0  0x00007fb3ed065fac in futex_wait_cancelable (private=0, expected=0,
futex_word=0x55f817343ad8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fb3ed065fac in __pthread_cond_wait_common (abstime=0x0,
mutex=0x55f817343a18, cond=0x55f817343ab0) at pthread_cond_wait.c:502
#2  0x00007fb3ed065fac in __pthread_cond_wait (cond=0x55f817343ab0,
mutex=0x55f817343a18) at pthread_cond_wait.c:655
#3  0x00007fb3e66b2969 in base::ConditionVariable::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb3e70187d8 in cc::SingleThreadTaskGraphRunner::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb3e66cad86 in base::SimpleThread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#8  0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fb37e7fc700 (LWP 28466)):
#0  0x00007fb3ed065fac in futex_wait_cancelable (private=0, expected=0,
futex_word=0x7fb37e7fb5f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fb3ed065fac in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7fb37e7fb5a8, cond=0x7fb37e7fb5d0) at pthread_cond_wait.c:502
#2  0x00007fb3ed065fac in __pthread_cond_wait (cond=0x7fb37e7fb5d0,
mutex=0x7fb37e7fb5a8) at pthread_cond_wait.c:655
#3  0x00007fb3e66b2969 in base::ConditionVariable::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb3e66b5318 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb3e66b53af in base::WaitableEvent::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb3e66b9998 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66bac7f in base::internal::SchedulerWorker::Thread::ThreadMain()
() at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#10 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fb37effd700 (LWP 28465)):
#0  0x00007fb3ef833a6b in __lll_lock_wait_private () at
../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63
#1  0x00007fb3ef8357f4 in ___fprintf_chk (fp=0x7fb3ef8ea8b0
<_IO_stdfile_2_lock>, flag=1, format=0x7fb3e1651848 "[%s] %s\n") at
fprintf_chk.c:30
#2  0x00007fb3e1639a5a in event_logv_ () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fb3e1639c34 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fb3e163b588 in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fb3e1631329 in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fb3e6687779 in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66a6c8b in base::RunLoop::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e57b7dba in
content::BrowserThreadImpl::IOThreadRun(base::RunLoop*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3e57b8267 in content::BrowserThreadImpl::Run(base::RunLoop*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fb3e66c8338 in base::Thread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#13 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fb37f7fe700 (LWP 28464)):
#0  0x00007fb3ed065fac in futex_wait_cancelable (private=0, expected=0,
futex_word=0x7fb37f7fd5f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fb3ed065fac in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7fb37f7fd5a8, cond=0x7fb37f7fd5d0) at pthread_cond_wait.c:502
#2  0x00007fb3ed065fac in __pthread_cond_wait (cond=0x7fb37f7fd5d0,
mutex=0x7fb37f7fd5a8) at pthread_cond_wait.c:655
#3  0x00007fb3e66b2969 in base::ConditionVariable::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb3e66b5318 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb3e66b53af in base::WaitableEvent::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb3e66b9998 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66bac7f in base::internal::SchedulerWorker::Thread::ThreadMain()
() at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#10 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fb37ffff700 (LWP 28463)):
#0  0x00007fb3ed065fac in futex_wait_cancelable (private=0, expected=0,
futex_word=0x7fb37fffe5f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fb3ed065fac in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7fb37fffe5a8, cond=0x7fb37fffe5d0) at pthread_cond_wait.c:502
#2  0x00007fb3ed065fac in __pthread_cond_wait (cond=0x7fb37fffe5d0,
mutex=0x7fb37fffe5a8) at pthread_cond_wait.c:655
#3  0x00007fb3e66b2969 in base::ConditionVariable::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb3e66b5318 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb3e66b53af in base::WaitableEvent::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb3e66b9998 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66bae61 in base::internal::SchedulerWorker::Thread::ThreadMain()
() at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#10 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fb394ff9700 (LWP 28462)):
#0  0x00007fb3ed065fac in futex_wait_cancelable (private=0, expected=0,
futex_word=0x7fb394ff85f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fb3ed065fac in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7fb394ff85a8, cond=0x7fb394ff85d0) at pthread_cond_wait.c:502
#2  0x00007fb3ed065fac in __pthread_cond_wait (cond=0x7fb394ff85d0,
mutex=0x7fb394ff85a8) at pthread_cond_wait.c:655
#3  0x00007fb3e66b2969 in base::ConditionVariable::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb3e66b5318 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb3e66b53af in base::WaitableEvent::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb3e66b9998 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66bac7f in base::internal::SchedulerWorker::Thread::ThreadMain()
() at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#10 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fb3957fa700 (LWP 28461)):
#0  0x00007fb3ed065fac in futex_wait_cancelable (private=0, expected=0,
futex_word=0x7fb3957f95f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fb3ed065fac in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7fb3957f95a8, cond=0x7fb3957f95d0) at pthread_cond_wait.c:502
#2  0x00007fb3ed065fac in __pthread_cond_wait (cond=0x7fb3957f95d0,
mutex=0x7fb3957f95a8) at pthread_cond_wait.c:655
#3  0x00007fb3e66b2969 in base::ConditionVariable::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb3e66b5318 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb3e66b53af in base::WaitableEvent::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb3e66b9998 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66bac7f in base::internal::SchedulerWorker::Thread::ThreadMain()
() at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#10 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fb395ffb700 (LWP 28460)):
#0  0x00007fb3ed065fac in futex_wait_cancelable (private=0, expected=0,
futex_word=0x7fb395ffa5f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fb3ed065fac in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7fb395ffa5a8, cond=0x7fb395ffa5d0) at pthread_cond_wait.c:502
#2  0x00007fb3ed065fac in __pthread_cond_wait (cond=0x7fb395ffa5d0,
mutex=0x7fb395ffa5a8) at pthread_cond_wait.c:655
#3  0x00007fb3e66b2969 in base::ConditionVariable::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb3e66b5318 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb3e66b53af in base::WaitableEvent::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb3e66b9998 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66bac7f in base::internal::SchedulerWorker::Thread::ThreadMain()
() at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#10 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fb397fff700 (LWP 28456)):
#0  0x00007fb3ed066399 in futex_reltimed_wait_cancelable (private=0,
reltime=0x7fb397ffe400, expected=0, futex_word=0x7fb397ffe5e8) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fb3ed066399 in __pthread_cond_wait_common (abstime=0x7fb397ffe4a0,
mutex=0x7fb397ffe598, cond=0x7fb397ffe5c0) at pthread_cond_wait.c:533
#2  0x00007fb3ed066399 in __pthread_cond_timedwait (cond=0x7fb397ffe5c0,
mutex=0x7fb397ffe598, abstime=0x7fb397ffe4a0) at pthread_cond_wait.c:667
#3  0x00007fb3e66b2a37 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb3e66b530a in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb3e66b53f2 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb3e66b9981 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66bae61 in base::internal::SchedulerWorker::Thread::ThreadMain()
() at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#10 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fb3ad7fa700 (LWP 28454)):
#0  0x00007fb3ed066399 in futex_reltimed_wait_cancelable (private=0,
reltime=0x7fb3ad7f9400, expected=0, futex_word=0x7fb3ad7f95e8) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fb3ed066399 in __pthread_cond_wait_common (abstime=0x7fb3ad7f94a0,
mutex=0x7fb3ad7f9598, cond=0x7fb3ad7f95c0) at pthread_cond_wait.c:533
#2  0x00007fb3ed066399 in __pthread_cond_timedwait (cond=0x7fb3ad7f95c0,
mutex=0x7fb3ad7f9598, abstime=0x7fb3ad7f94a0) at pthread_cond_wait.c:667
#3  0x00007fb3e66b2a37 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb3e66b530a in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb3e66b53f2 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb3e66b9981 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66bae61 in base::internal::SchedulerWorker::Thread::ThreadMain()
() at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#10 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fb3adffb700 (LWP 28453)):
#0  0x00007fb3ef833a6b in __lll_lock_wait_private () at
../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63
#1  0x00007fb3ef8357f4 in ___fprintf_chk (fp=0x7fb3ef8ea8b0
<_IO_stdfile_2_lock>, flag=1, format=0x7fb3e1651848 "[%s] %s\n") at
fprintf_chk.c:30
#2  0x00007fb3e1639a5a in event_logv_ () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fb3e1639c34 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fb3e163b588 in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fb3e1631329 in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fb3e66877cd in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66a6c8b in base::RunLoop::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c8204 in base::Thread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#11 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fb3ae7fc700 (LWP 28452)):
#0  0x00007fb3ed065fac in futex_wait_cancelable (private=0, expected=0,
futex_word=0x7fb3ae7fb588) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fb3ed065fac in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7fb3ae7fb538, cond=0x7fb3ae7fb560) at pthread_cond_wait.c:502
#2  0x00007fb3ed065fac in __pthread_cond_wait (cond=0x7fb3ae7fb560,
mutex=0x7fb3ae7fb538) at pthread_cond_wait.c:655
#3  0x00007fb3e66b2969 in base::ConditionVariable::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fb3e66b5318 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fb3e66b53af in base::WaitableEvent::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fb3e668735f in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66a6c8b in base::RunLoop::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c8204 in base::Thread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#11 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fb3aeffd700 (LWP 28451)):
#0  0x00007fb3ef833a6b in __lll_lock_wait_private () at
../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63
#1  0x00007fb3ef8357f4 in ___fprintf_chk (fp=0x7fb3ef8ea8b0
<_IO_stdfile_2_lock>, flag=1, format=0x7fb3e1651848 "[%s] %s\n") at
fprintf_chk.c:30
#2  0x00007fb3e1639a5a in event_logv_ () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fb3e1639c34 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fb3e163b588 in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fb3e1631329 in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fb3e6687779 in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fb3e66a6c8b in base::RunLoop::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fb3e66c8204 in base::Thread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fb3e66c3c81 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#11 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fb3bde01700 (LWP 28443)):
#0  0x00007fb3ec525cc9 in g_mutex_lock () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb3ec4db555 in g_main_context_prepare () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb3ec4dbf4b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb3ec4dc13c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb3efd2e16b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fb3efcdb14b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fb3efb2a106 in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fb3efb33cd7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#9  0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fb3bf7fe700 (LWP 28440)):
#0  0x00007fb3ef817764 in __GI___libc_read (nbytes=16, buf=0x7fb3bf7fd480,
fd=14) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007fb3ef817764 in __GI___libc_read (fd=14, buf=0x7fb3bf7fd480,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fb3ec521950 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb3ec4dbaef in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb3ec4dbfc0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb3ec4dc13c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fb3efd2e16b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fb3efcdb14b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fb3efb2a106 in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fb3efb33cd7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#11 0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fb3bffff700 (LWP 28439)):
#0  0x00007fb3ec4db926 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb3ec4dbfc0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb3ec4dc13c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb3efd2e16b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fb3efcdb14b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fb3efb2a106 in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fb3efb33cd7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#8  0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fb3cd035700 (LWP 28438)):
#0  0x00007fb3efd2e030 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fb3ec4db549 in g_main_context_prepare () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb3ec4dbf4b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb3ec4dc13c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb3efd2e16b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fb3efcdb14b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fb3efb2a106 in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fb3efb33cd7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#9  0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fb3ce246700 (LWP 28437)):
#0  0x00007fb3ef81bb39 in __GI___poll (fds=0x7fb3c0011e00, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb3ec4dc016 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb3ec4dc13c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb3efd2e16b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fb3efcdb14b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fb3efb2a106 in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fb3ef306545 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fb3efb33cd7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#9  0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fb3cffff700 (LWP 28436)):
#0  0x00007fb3ed065fac in futex_wait_cancelable (private=0, expected=0,
futex_word=0x55f816956a4c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fb3ed065fac in __pthread_cond_wait_common (abstime=0x0,
mutex=0x55f8169569f8, cond=0x55f816956a20) at pthread_cond_wait.c:502
#2  0x00007fb3ed065fac in __pthread_cond_wait (cond=0x55f816956a20,
mutex=0x55f8169569f8) at pthread_cond_wait.c:655
#3  0x00007fb3d47dda32 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fb3d47dd5f7 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#6  0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fb3d6069700 (LWP 28435)):
#0  0x00007fb3ef81bb39 in __GI___poll (fds=0x7fb3d60685b8, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb3ec0d2cf7 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fb3ec0d491a in xcb_wait_for_event () at
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fb3d6736519 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fb3efb33cd7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fb3ed05ffa3 in start_thread (arg=<optimized out>) at
pthread_create.c:486
#6  0x00007fb3ef8267ef in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fb3d6b8bf00 (LWP 28434)):
[KCrash Handler]
#6  0x00007fb3edf8d15a in  () at
/usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi2
#7  0x00007fb3edfd32ef in Akonadi::Item::hasAttribute(QByteArray const&) const
() at /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi2
#8  0x00007fb3ee0bda7e in  () at
/usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi2
#9  0x00007fb3ee0bb154 in  () at
/usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi2
#10 0x00007fb3ee0ab42a in  () at
/usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi2
#11 0x00007fb3efd056cb in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fb3edfe5995 in Akonadi::Monitor::itemRemoved(Akonadi::Item const&)
() at /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi2
#13 0x00007fb3edff01df in
Akonadi::MonitorPrivate::emitItemsNotification(Akonadi::Protocol::ItemChangeNotification
const&, QVector<Akonadi::Item> const&, Akonadi::Collection const&,
Akonadi::Collection const&) () at
/usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi2
#14 0x00007fb3edff0dcc in
Akonadi::MonitorPrivate::emitNotification(QSharedPointer<Akonadi::Protocol::ChangeNotification>
const&) () at /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi2
#15 0x00007fb3edf9cd9e in  () at
/usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi2
#16 0x00007fb3edff3a41 in Akonadi::MonitorPrivate::flushPipeline() () at
/usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi2
#17 0x00007fb3edff3d89 in Akonadi::MonitorPrivate::dataAvailable() () at
/usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi2
#18 0x00007fb3edfe7299 in  () at
/usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi2
#19 0x00007fb3efd056cb in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007fb3edf90713 in  () at
/usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi2
#21 0x00007fb3edfca3e4 in  () at
/usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi2
#22 0x00007fb3efd056cb in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fb3f0b8fc6c in KJob::result(KJob*, KJob::QPrivateSignal) () at
/usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#24 0x00007fb3f0b90733 in KJob::finishJob(bool) () at
/usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#25 0x00007fb3efd114a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007fb3efd05f3b in QObject::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fb3f0652491 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007fb3f0659ad0 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007fb3efcdc479 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007fb3efd2d568 in QTimerInfoList::activateTimers() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007fb3efd2ddc4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007fb3ec4dbe0e in g_main_context_dispatch () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fb3ec4dc0a8 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007fb3ec4dc13c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007fb3efd2e153 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00007fb3d67c9861 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#37 0x00007fb3efcdb14b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007fb3efce32c2 in QCoreApplication::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x000055f815d0833b in main(int, char**) (argc=<optimized out>,
argv=<optimized out>) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qcoreapplication.h:116
[Inferior 1 (process 28434) detached]

Reported using DrKonqi

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