[kontact] [Bug 416254] New: Kontact / Kmail crash while forwarding email

Michael Brach bugzilla_noreply at kde.org
Tue Jan 14 16:01:13 GMT 2020 

https://bugs.kde.org/show_bug.cgi?id=416254

            Bug ID: 416254
           Summary: Kontact / Kmail crash while forwarding email
           Product: kontact
           Version: 5.7.3
          Platform: Ubuntu Packages
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: michael.brach at uni-muenster.de
  Target Milestone: ---

Application: kontact (5.7.3)

Qt Version: 5.9.5
Frameworks Version: 5.47.0
Operating System: Linux 4.15.0-74-generic x86_64
Distribution: Ubuntu 18.04.3 LTS

-- Information about the crash:
- What I was doing when the application crashed:

Kontact / Kmail crashes in the moment, when I pressed f for forwarding an
email.

The crash can be reproduced sometimes.

-- 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 0x7f6bf26c1b80 (LWP 22579))]

Thread 29 (Thread 0x7f6baa7fc700 (LWP 25021)):
#0  0x00007f6bef0680b4 in __GI___libc_read (fd=128, buf=0x7f6baa7fb810,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f6be8dbb2d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6be8d760b7 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6be8d76570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f6be8d766dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6befbcd99b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f6befb729fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f6bef99123a in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f6bef99617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f6beadf76db in start_thread (arg=0x7f6baa7fc700) at
pthread_create.c:463
#10 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7f6a8e56c700 (LWP 22651)):
#0  0x00007f6bef0680b4 in __GI___libc_read (fd=91, buf=0x7f6a8e56b810,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f6be8dbb2d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6be8d760b7 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6be8d76570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f6be8d766dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6befbcd99b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f6befb729fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f6bef99123a in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f6bef99617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f6beadf76db in start_thread (arg=0x7f6a8e56c700) at
pthread_create.c:463
#10 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7f6a9e937700 (LWP 22618)):
#0  0x00007f6beadfd9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x563d9c4b8860) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f6beadfd9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x563d9c4b8810, cond=0x563d9c4b8838) at pthread_cond_wait.c:502
#2  0x00007f6beadfd9f3 in __pthread_cond_wait (cond=0x563d9c4b8838,
mutex=0x563d9c4b8810) at pthread_cond_wait.c:655
#3  0x00007f6bef9975ab in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f6bef98fc1b in QSemaphore::acquire(int) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f6a9f92580c in  () at
/usr/lib/x86_64-linux-gnu/qt5/plugins/texttospeech/libqttexttospeech_flite.so
#6  0x00007f6bef99617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f6beadf76db in start_thread (arg=0x7f6a9e937700) at
pthread_create.c:463
#8  0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7f6aa032a700 (LWP 22616)):
#0  0x00007f6bef06cbf9 in __GI___poll (fds=0x7f6a980049b0, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f6be8d765c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6be8d766dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6befbcd99b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f6befb729fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f6bef99123a in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f6bef99617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f6beadf76db in start_thread (arg=0x7f6aa032a700) at
pthread_create.c:463
#8  0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7f6ab1700700 (LWP 22613)):
#0  0x00007f6be8dbc664 in g_mutex_unlock () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f6be8d764ee in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6be8d766dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6befbcd99b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f6befb729fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f6bef99123a in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f6bef99617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f6beadf76db in start_thread (arg=0x7f6ab1700700) at
pthread_create.c:463
#8  0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7f6ab1f01700 (LWP 22612)):
#0  0x00007f6bef0680b4 in __GI___libc_read (fd=68, buf=0x7f6ab1f00810,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f6be8dbb2d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6be8d760b7 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6be8d76570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f6be8d766dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6befbcd99b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f6befb729fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f6bef99123a in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f6bef99617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f6beadf76db in start_thread (arg=0x7f6ab1f01700) at
pthread_create.c:463
#10 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7f6ab2da0700 (LWP 22611)):
#0  0x00007f6bef0680b4 in __GI___libc_read (fd=66, buf=0x7f6ab2d9f810,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f6be8dbb2d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6be8d760b7 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6be8d76570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f6be8d766dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6befbcd99b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f6befb729fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f6bef99123a in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f6bef99617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f6beadf76db in start_thread (arg=0x7f6ab2da0700) at
pthread_create.c:463
#10 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7f6b64ff9700 (LWP 22609)):
#0  0x00007f6beadfd9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7f6bd9c0efb8) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f6beadfd9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7f6bd9c0ef68, cond=0x7f6bd9c0ef90) at pthread_cond_wait.c:502
#2  0x00007f6beadfd9f3 in __pthread_cond_wait (cond=0x7f6bd9c0ef90,
mutex=0x7f6bd9c0ef68) at pthread_cond_wait.c:655
#3  0x00007f6bd99185f4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f6bd9918639 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f6beadf76db in start_thread (arg=0x7f6b64ff9700) at
pthread_create.c:463
#6  0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7f6b657fa700 (LWP 22607)):
#0  0x00007f6beadfd9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x563d9bfdf29c) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f6beadfd9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x563d9bfdf248, cond=0x563d9bfdf270) at pthread_cond_wait.c:502
#2  0x00007f6beadfd9f3 in __pthread_cond_wait (cond=0x563d9bfdf270,
mutex=0x563d9bfdf248) at pthread_cond_wait.c:655
#3  0x00007f6bdfdf1c95 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f6bdfdf2177 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f6bdfdf2f11 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f6beadf76db in start_thread (arg=0x7f6b657fa700) at
pthread_create.c:463
#8  0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f6b65ffb700 (LWP 22606)):
#0  0x00007f6beadfd9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x563d9bfdf298) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f6beadfd9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x563d9bfdf248, cond=0x563d9bfdf270) at pthread_cond_wait.c:502
#2  0x00007f6beadfd9f3 in __pthread_cond_wait (cond=0x563d9bfdf270,
mutex=0x563d9bfdf248) at pthread_cond_wait.c:655
#3  0x00007f6bdfdf1c95 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f6bdfdf2177 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f6bdfdf2f11 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f6beadf76db in start_thread (arg=0x7f6b65ffb700) at
pthread_create.c:463
#8  0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f6b667fc700 (LWP 22605)):
#0  0x00007f6bc031457f in pa_pstream_unref () at
/usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#1  0x00007f6bc0314ad3 in  () at
/usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#2  0x00007f6bc031533f in  () at
/usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#3  0x00007f6bc077a108 in pa_mainloop_dispatch () at
/usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f6bc077a4de in pa_mainloop_iterate () at
/usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f6bc077a560 in pa_mainloop_run () at
/usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f6bc07883c9 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#7  0x00007f6bc0325318 in  () at
/usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#8  0x00007f6beadf76db in start_thread (arg=0x7f6b667fc700) at
pthread_create.c:463
#9  0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f6b66ffd700 (LWP 22604)):
#0  0x00007f6bef068187 in __GI___libc_write (fd=2, buf=0x7f6b66ff9ac0,
nbytes=47) at ../sysdeps/unix/sysv/linux/write.c:27
#1  0x00007f6beefe31bd in _IO_new_file_write (f=0x7f6bef344680
<_IO_2_1_stderr_>, data=0x7f6b66ff9ac0, n=47) at fileops.c:1203
#2  0x00007f6beefe3b2f in new_do_write (to_do=<optimized out>,
data=0x7f6b66ff9ac0 "[warn] epoll_wait: Ung\303\274ltiger Dateideskriptor\n",
fp=0x7f6bef344680 <_IO_2_1_stderr_>) at fileops.c:457
#3  0x00007f6beefe3b2f in _IO_new_file_xsputn (f=0x7f6bef344680
<_IO_2_1_stderr_>, data=<optimized out>, n=47) at fileops.c:1277
#4  0x00007f6beefb6707 in buffered_vfprintf (s=s at entry=0x7f6bef344680
<_IO_2_1_stderr_>, format=format at entry=0x7f6bd851c6a8 "[%s] %s\n",
args=args at entry=0x7f6b66ffc080) at vfprintf.c:2350
#5  0x00007f6beefb3726 in _IO_vfprintf_internal (s=s at entry=0x7f6bef344680
<_IO_2_1_stderr_>, format=0x7f6bd851c6a8 "[%s] %s\n",
ap=ap at entry=0x7f6b66ffc080) at vfprintf.c:1301
#6  0x00007f6bef08a4c6 in ___fprintf_chk (fp=0x7f6bef344680 <_IO_2_1_stderr_>,
flag=1, format=<optimized out>) at fprintf_chk.c:35
#7  0x00007f6bd85049ad in event_logv_ () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#8  0x00007f6bd8504b44 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#9  0x00007f6bd850646c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#10 0x00007f6bd84fc114 in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#11 0x00007f6bdfdc2ab9 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f6bdfdbeda8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f6bdfddb77b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007f6bdfdf34d6 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#16 0x00007f6beadf76db in start_thread (arg=0x7f6b66ffd700) at
pthread_create.c:463
#17 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f6b677fe700 (LWP 22603)):
#0  0x00007f6beadfd9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7f6b677fd738) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f6beadfd9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7f6b677fd6e8, cond=0x7f6b677fd710) at pthread_cond_wait.c:502
#2  0x00007f6beadfd9f3 in __pthread_cond_wait (cond=0x7f6b677fd710,
mutex=0x7f6b677fd6e8) at pthread_cond_wait.c:655
#3  0x00007f6bdfde7999 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f6bdfde79c7 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f6bdfdc24db in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f6bdfdbeda8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f6bdfddb77b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f6bdfdf34d6 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f6beadf76db in start_thread (arg=0x7f6b677fe700) at
pthread_create.c:463
#11 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f6b67fff700 (LWP 22602)):
#0  0x00007f6beadfded9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7f6b67ffe5d0, expected=0, futex_word=0x7f6b67ffe758) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f6beadfded9 in __pthread_cond_wait_common (abstime=0x7f6b67ffe670,
mutex=0x7f6b67ffe708, cond=0x7f6b67ffe730) at pthread_cond_wait.c:533
#2  0x00007f6beadfded9 in __pthread_cond_timedwait (cond=0x7f6b67ffe730,
mutex=0x7f6b67ffe708, abstime=0x7f6b67ffe670) at pthread_cond_wait.c:667
#3  0x00007f6bdfe20652 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f6bdfde791e in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f6bdfdc252b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f6bdfdbeda8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f6bdfddb77b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f6bdfdf34d6 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f6beadf76db in start_thread (arg=0x7f6b67fff700) at
pthread_create.c:463
#11 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f6b84ff9700 (LWP 22601)):
#0  0x00007f6beadfd9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x563d9bfec308) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f6beadfd9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x563d9bfec248, cond=0x563d9bfec2e0) at pthread_cond_wait.c:502
#2  0x00007f6beadfd9f3 in __pthread_cond_wait (cond=0x563d9bfec2e0,
mutex=0x563d9bfec248) at pthread_cond_wait.c:655
#3  0x00007f6be0579060 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f6bdfdf2f11 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f6beadf76db in start_thread (arg=0x7f6b84ff9700) at
pthread_create.c:463
#7  0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f6b857fa700 (LWP 22599)):
#0  0x00007f6beadfd9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7f6b857f9738) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f6beadfd9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7f6b857f96e8, cond=0x7f6b857f9710) at pthread_cond_wait.c:502
#2  0x00007f6beadfd9f3 in __pthread_cond_wait (cond=0x7f6b857f9710,
mutex=0x7f6b857f96e8) at pthread_cond_wait.c:655
#3  0x00007f6bdfde7999 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f6bdfde79c7 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f6bdfdc24db in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f6bdfdbeda8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f6bdfddb77b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f6bdfdf34d6 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f6beadf76db in start_thread (arg=0x7f6b857fa700) at
pthread_create.c:463
#11 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f6b85ffb700 (LWP 22600)):
#0  0x00007f6beadfd9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x563d9bfdf29c) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f6beadfd9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x563d9bfdf248, cond=0x563d9bfdf270) at pthread_cond_wait.c:502
#2  0x00007f6beadfd9f3 in __pthread_cond_wait (cond=0x563d9bfdf270,
mutex=0x563d9bfdf248) at pthread_cond_wait.c:655
#3  0x00007f6bdfdf1c95 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f6bdfdf2177 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f6bdfdf2f11 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f6beadf76db in start_thread (arg=0x7f6b85ffb700) at
pthread_create.c:463
#8  0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f6b867fc700 (LWP 22598)):
[KCrash Handler]
#6  0x00007f6bdf42ba63 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f6be0241b81 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f6be0348e67 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f6bdf81d6a0 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f6bdf81d798 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f6bdf81539e in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f6bdf8180f1 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f6bdf818b5f in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007f6bdf81a9ca in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007f6bdf81aaf3 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#16 0x00007f6bdf81acc6 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#17 0x00007f6bdf81c3da in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#18 0x00007f6bdf4dbd2b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#19 0x00007f6be0523016 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#20 0x00007f6be050f53b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#21 0x00007f6be050f701 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#22 0x00007f6be050d610 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#23 0x00007f6be0512a57 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#24 0x00007f6bdf4fc1c8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#25 0x00007f6be04f85dd in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#26 0x00007f6be051de78 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#27 0x00007f6be04f5f35 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#28 0x00007f6be04f608e in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#29 0x00007f6be0503445 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#30 0x00007f6bdfe1ba83 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#31 0x00007f6bdfdbfa00 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#32 0x00007f6bdfdc1058 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#33 0x00007f6bdfdc13eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#34 0x00007f6bdfdc2aa2 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#35 0x00007f6bdfdbeda8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#36 0x00007f6bdfddb77b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#37 0x00007f6bdf679978 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#38 0x00007f6bdf679f2b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#39 0x00007f6bdfdf3588 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#40 0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#41 0x00007f6beadf76db in start_thread (arg=0x7f6b867fc700) at
pthread_create.c:463
#42 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f6b86ffd700 (LWP 22597)):
#0  0x00007f6beadfded9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7f6b86ffc1f0, expected=0, futex_word=0x7f6b86ffc378) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f6beadfded9 in __pthread_cond_wait_common (abstime=0x7f6b86ffc290,
mutex=0x7f6b86ffc328, cond=0x7f6b86ffc350) at pthread_cond_wait.c:533
#2  0x00007f6beadfded9 in __pthread_cond_timedwait (cond=0x7f6b86ffc350,
mutex=0x7f6b86ffc328, abstime=0x7f6b86ffc290) at pthread_cond_wait.c:667
#3  0x00007f6bdfe20652 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f6bdfde791e in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f6bdfdc252b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f6bdfdbeda8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f6bdfddb77b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f6bdf6798c8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f6bdf679f1b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f6bdfdf3588 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f6beadf76db in start_thread (arg=0x7f6b86ffd700) at
pthread_create.c:463
#13 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f6b877fe700 (LWP 22596)):
#0  0x00007f6beadfd9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7f6b877fd358) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f6beadfd9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7f6b877fd308, cond=0x7f6b877fd330) at pthread_cond_wait.c:502
#2  0x00007f6beadfd9f3 in __pthread_cond_wait (cond=0x7f6b877fd330,
mutex=0x7f6b877fd308) at pthread_cond_wait.c:655
#3  0x00007f6bdfde7999 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f6bdfde79c7 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f6bdfdc24db in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f6bdfdbeda8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f6bdfddb77b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f6bdf679818 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f6bdf679f0b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f6bdfdf3588 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f6beadf76db in start_thread (arg=0x7f6b877fe700) at
pthread_create.c:463
#13 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f6b87fff700 (LWP 22595)):
#0  0x00007f6beadfd9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7f6b87ffe358) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f6beadfd9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7f6b87ffe308, cond=0x7f6b87ffe330) at pthread_cond_wait.c:502
#2  0x00007f6beadfd9f3 in __pthread_cond_wait (cond=0x7f6b87ffe330,
mutex=0x7f6b87ffe308) at pthread_cond_wait.c:655
#3  0x00007f6bdfde7999 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f6bdfde79c7 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f6bdfdc24db in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f6bdfdbeda8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f6bdfddb77b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f6bdf679768 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f6bdf679efb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f6bdfdf3588 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f6beadf76db in start_thread (arg=0x7f6b87fff700) at
pthread_create.c:463
#13 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f6ba8ff9700 (LWP 22594)):
#0  0x00007f6bef0886ac in __lll_lock_wait_private () at
../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f6bef08a474 in ___fprintf_chk (fp=0x7f6bef3458b0
<_IO_stdfile_2_lock>, flag=1, format=0x7f6bd851c6a8 "[%s] %s\n") at
fprintf_chk.c:30
#2  0x00007f6bd85049ad in event_logv_ () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f6bd8504b44 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f6bd850646c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f6bd84fc114 in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f6bdfdc2b0d in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f6bdfdbeda8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f6bdfddb77b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f6bdf6796b8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f6bdf679eeb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f6bdfdf3588 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f6beadf76db in start_thread (arg=0x7f6ba8ff9700) at
pthread_create.c:463
#14 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f6ba97fa700 (LWP 22593)):
#0  0x00007f6beadfd9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7f6ba97f9358) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f6beadfd9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7f6ba97f9308, cond=0x7f6ba97f9330) at pthread_cond_wait.c:502
#2  0x00007f6beadfd9f3 in __pthread_cond_wait (cond=0x7f6ba97f9330,
mutex=0x7f6ba97f9308) at pthread_cond_wait.c:655
#3  0x00007f6bdfde7999 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f6bdfde79c7 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f6bdfdc24db in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f6bdfdbeda8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f6bdfddb77b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f6bdf679608 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f6bdf679edb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f6bdfdf3588 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f6beadf76db in start_thread (arg=0x7f6ba97fa700) at
pthread_create.c:463
#13 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f6baaffd700 (LWP 22590)):
#0  0x00007f6beadfd9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7f6baaffc738) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f6beadfd9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7f6baaffc6e8, cond=0x7f6baaffc710) at pthread_cond_wait.c:502
#2  0x00007f6beadfd9f3 in __pthread_cond_wait (cond=0x7f6baaffc710,
mutex=0x7f6baaffc6e8) at pthread_cond_wait.c:655
#3  0x00007f6bdfde7999 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f6bdfde79c7 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f6bdfdc24db in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f6bdfdbeda8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f6bdfddb77b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f6bdfdf34d6 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f6beadf76db in start_thread (arg=0x7f6baaffd700) at
pthread_create.c:463
#11 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f6bab7fe700 (LWP 22589)):
#0  0x00007f6bef0886ac in __lll_lock_wait_private () at
../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f6bef08a474 in ___fprintf_chk (fp=0x7f6bef3458b0
<_IO_stdfile_2_lock>, flag=1, format=0x7f6bd851c6a8 "[%s] %s\n") at
fprintf_chk.c:30
#2  0x00007f6bd85049ad in event_logv_ () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f6bd8504b44 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f6bd850646c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f6bd84fc114 in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f6bdfdc2b0d in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f6bdfdbeda8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f6bdfddb77b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f6bdfdf34d6 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f6bdfdef5eb in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f6beadf76db in start_thread (arg=0x7f6bab7fe700) at
pthread_create.c:463
#12 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f6bb27b7700 (LWP 22582)):
#0  0x00007f6be8dbc670 in g_mutex_unlock () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f6be8d75fd9 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6be8d76570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6be8d766dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f6befbcd99b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f6befb729fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f6bef99123a in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f6bee2ded45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f6bef99617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f6beadf76db in start_thread (arg=0x7f6bb27b7700) at
pthread_create.c:463
#10 0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f6bb89c6700 (LWP 22581)):
#0  0x00007f6beadfd9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x563d9bbe692c) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f6beadfd9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x563d9bbe68d8, cond=0x563d9bbe6900) at pthread_cond_wait.c:502
#2  0x00007f6beadfd9f3 in __pthread_cond_wait (cond=0x563d9bbe6900,
mutex=0x563d9bbe68d8) at pthread_cond_wait.c:655
#3  0x00007f6bb9bc02cb in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f6bb9bbfff7 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f6beadf76db in start_thread (arg=0x7f6bb89c6700) at
pthread_create.c:463
#6  0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f6bc3367700 (LWP 22580)):
#0  0x00007f6bef06cbf9 in __GI___poll (fds=0x7f6bc3366928, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f6bea835747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f6bea83736a in xcb_wait_for_event () at
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f6bc50625e9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f6bef99617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f6beadf76db in start_thread (arg=0x7f6bc3367700) at
pthread_create.c:463
#6  0x00007f6bef07988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f6bf26c1b80 (LWP 22579)):
#0  0x00007f6beadfd9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7fff6b20c7a8) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f6beadfd9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x563d9bbccc28, cond=0x7fff6b20c780) at pthread_cond_wait.c:502
#2  0x00007f6beadfd9f3 in __pthread_cond_wait (cond=0x7fff6b20c780,
mutex=0x563d9bbccc28) at pthread_cond_wait.c:655
#3  0x00007f6bea835952 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#4  0x00007f6bea83706f in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#5  0x00007f6bea837180 in xcb_wait_for_reply () at
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#6  0x00007f6bc5086b85 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#7  0x00007f6bc5086ccc in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#8  0x00007f6bf01444f5 in QCursor::pos(QScreen const*) () at
/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#9  0x00007f6bf08f9c75 in
QApplicationPrivate::sendSyntheticEnterLeave(QWidget*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f6bf0930c01 in QWidget::setVisible(bool) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f6bf0914f57 in QStackedLayout::setCurrentIndex(int) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f6bf0915264 in QStackedLayout::setCurrentWidget(QWidget*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007f6bf0a9c671 in QStackedWidget::setCurrentWidget(QWidget*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f6bede27d44 in KPIM::StatusbarProgressWidget::setMode() () at
/usr/lib/x86_64-linux-gnu/libKF5Libkdepim.so.5abi2
#15 0x00007f6befba375f in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f6befbb00b7 in QTimer::timeout(QTimer::QPrivateSignal) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f6befbb0418 in QTimer::timerEvent(QTimerEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f6befba416b in QObject::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f6bf08f283c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f6bf08fa104 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f6befb749c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f6befbcce1e in QTimerInfoList::activateTimers() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f6befbcd5e1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f6be8d76417 in g_main_context_dispatch () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f6be8d76650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f6be8d766dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f6befbcd99b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f6befb729fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f6befb7baa4 in QCoreApplication::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x0000563d9b22748d in  ()
#31 0x00007f6beef79b97 in __libc_start_main (main=0x563d9b226630, argc=1,
argv=0x7fff6b20d3f8, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fff6b20d3e8) at ../csu/libc-start.c:310
#32 0x0000563d9b227aea in _start ()

Reported using DrKonqi

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