[kmail2] [Bug 379479] New: Frequent crashes with kmail in Ubuntu 17.04 (updated kmail)

Anders Bolager bugzilla_noreply at kde.org
Wed May 3 14:58:22 BST 2017 

https://bugs.kde.org/show_bug.cgi?id=379479

            Bug ID: 379479
           Summary: Frequent crashes with kmail in Ubuntu 17.04 (updated
                    kmail)
           Product: kmail2
           Version: 5.4.3
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: anders at bolager.com
  Target Milestone: ---

Application: kmail (5.4.3)

Qt Version: 5.7.1
Frameworks Version: 5.31.0
Operating System: Linux 4.10.0-20-generic x86_64
Distribution: Ubuntu 17.04

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

Almost always when selecting a message to view, the program crash. At the
longest, I managed to work in it (watching messages, even sending one) for
about 20 minutes or so. Usually, it crash right after startup.

The crash can be reproduced every time.

-- 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 0x7f093d633b80 (LWP 3388))]

Thread 27 (Thread 0x7f086b9c1700 (LWP 3452)):
#0  0x00007f09301f4510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f09208582c4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f0920858309 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f09301ee6da in start_thread (arg=0x7f086b9c1700) at
pthread_create.c:456
#4  0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 26 (Thread 0x7f08719c0700 (LWP 3440)):
#0  0x00007f093a5a618d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f092e421576 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f092e42168c in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f093b0e0f2b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f093b08a88a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f093aeb7fe3 in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f093aebcc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f09301ee6da in start_thread (arg=0x7f08719c0700) at
pthread_create.c:456
#8  0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 25 (Thread 0x7f0896ffd700 (LWP 3420)):
#0  0x00007f09301f4510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0925b1dc09 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f0925b1e209 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f0925b1e3c0 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f09301ee6da in start_thread (arg=0x7f0896ffd700) at
pthread_create.c:456
#6  0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 24 (Thread 0x7f08977fe700 (LWP 3419)):
#0  0x00007f093a5a1cad in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f0912b7c611 in pa_read () at
/usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-10.0.so
#2  0x00007f091bdec21e in pa_mainloop_prepare () at
/usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f091bdecc90 in pa_mainloop_iterate () at
/usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f091bdecd50 in pa_mainloop_run () at
/usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f091bdfad39 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f0912bab7d8 in  () at
/usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-10.0.so
#7  0x00007f09301ee6da in start_thread (arg=0x7f08977fe700) at
pthread_create.c:456
#8  0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 23 (Thread 0x7f0897fff700 (LWP 3418)):
#0  0x00007f093a5c013c in __lll_lock_wait_private () at
../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f093a5c1d44 in ___fprintf_chk (fp=0x7f093a86d750
<_IO_stdfile_2_lock>, flag=1, format=0x7f0918b737b4 "[%s] %s\n") at
fprintf_chk.c:30
#2  0x00007f0918b5b51e in  () at /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#3  0x00007f0918b5b714 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#4  0x00007f0918b5fd38 in  () at /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#5  0x00007f0918b49efa in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#6  0x00007f0925ac92aa in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0925b05a84 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0925aef9d5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0925b1e9ea in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f09301ee6da in start_thread (arg=0x7f0897fff700) at
pthread_create.c:456
#12 0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 22 (Thread 0x7f08b8ff9700 (LWP 3417)):
#0  0x00007f09301f4510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f092d643eb9 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f092d645617 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f092d645781 in xcb_wait_for_reply64 () at
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#4  0x00007f093064aa78 in _XReply () at /usr/lib/x86_64-linux-gnu/libX11.so.6
#5  0x00007f093064657d in XSync () at /usr/lib/x86_64-linux-gnu/libX11.so.6
#6  0x00007f092f802811 in  () at /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#7  0x00007f092f803757 in  () at /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#8  0x00007f092f7dd16a in  () at /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#9  0x00007f0924101eee in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f09253a61e9 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f09253a64c9 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f092417caa5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f092417cba9 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007f0924a795cc in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007f092417e2c3 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#16 0x00007f0925b1ea5d in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#17 0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#18 0x00007f09301ee6da in start_thread (arg=0x7f08b8ff9700) at
pthread_create.c:456
#19 0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 21 (Thread 0x7f08b97fa700 (LWP 3416)):
#0  0x00007f09301f4510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f09255f7ce0 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f09255dfdd0 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f09255e016b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f09255db9ea in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f092697b56e in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f092697da04 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f092697da55 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f092697db39 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0925b05a84 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0925aef9d5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f0925b1e9ea in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f09301ee6da in start_thread (arg=0x7f08b97fa700) at
pthread_create.c:456
#14 0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 20 (Thread 0x7f08b9ffb700 (LWP 3415)):
#0  0x00007f09301f48b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f0925b120a2 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f0925b12955 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f0925af3841 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0925b05a84 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0925aef9d5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0925b1e9ea in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f09301ee6da in start_thread (arg=0x7f08b9ffb700) at
pthread_create.c:456
#9  0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 19 (Thread 0x7f08ba7fc700 (LWP 3414)):
#0  0x00007f09301f4510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f09250d64cd in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f0925b1e29e in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f0925b1e3c0 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f09301ee6da in start_thread (arg=0x7f08ba7fc700) at
pthread_create.c:456
#6  0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 18 (Thread 0x7f08baffd700 (LWP 3413)):
#0  0x00007f09301f4510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0925b128c5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f0925b12995 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f0925af37f3 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0925b05a84 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0925aef9d5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0925b1e9ea in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f09301ee6da in start_thread (arg=0x7f08baffd700) at
pthread_create.c:456
#9  0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 17 (Thread 0x7f08bb7fe700 (LWP 3412)):
#0  0x00007f093a5c013c in __lll_lock_wait_private () at
../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f093a5c1d44 in ___fprintf_chk (fp=0x7f093a86d750
<_IO_stdfile_2_lock>, flag=1, format=0x7f0918b737b4 "[%s] %s\n") at
fprintf_chk.c:30
#2  0x00007f0918b5b51e in  () at /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#3  0x00007f0918b5b714 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#4  0x00007f0918b5fd38 in  () at /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#5  0x00007f0918b49efa in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#6  0x00007f0925ac9365 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0925b05a84 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0925aef9d5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0924cdd808 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0924cdd94b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f0925b1ea68 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f09301ee6da in start_thread (arg=0x7f08bb7fe700) at
pthread_create.c:456
#14 0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 16 (Thread 0x7f08bbfff700 (LWP 3411)):
#0  0x00007f093a5c013c in __lll_lock_wait_private () at
../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f093a5c1d44 in ___fprintf_chk (fp=0x7f093a86d750
<_IO_stdfile_2_lock>, flag=1, format=0x7f0918b737b4 "[%s] %s\n") at
fprintf_chk.c:30
#2  0x00007f0918b5b51e in  () at /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#3  0x00007f0918b5b714 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#4  0x00007f0918b5fd38 in  () at /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#5  0x00007f0918b49efa in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#6  0x00007f0925ac92aa in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0925b05a84 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0925aef9d5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0924cdd758 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0924cdd9ab in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f0925b1ea68 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f09301ee6da in start_thread (arg=0x7f08bbfff700) at
pthread_create.c:456
#14 0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 15 (Thread 0x7f08d0dec700 (LWP 3410)):
#0  0x00007f09301f4510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0925b128c5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f0925b12995 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f0925af37f3 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0925b05a84 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0925aef9d5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0924cdd6a8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0924cdd99b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0925b1ea68 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f09301ee6da in start_thread (arg=0x7f08d0dec700) at
pthread_create.c:456
#11 0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 14 (Thread 0x7f08d15ed700 (LWP 3409)):
#0  0x00007f09301f4510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0925b128c5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f0925b12995 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f0925af37f3 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0925b05a84 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0925aef9d5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0924cdd5f8 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0924cdd98b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0925b1ea68 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f09301ee6da in start_thread (arg=0x7f08d15ed700) at
pthread_create.c:456
#11 0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 13 (Thread 0x7f08d1dee700 (LWP 3408)):
#0  0x00007f093a5c013c in __lll_lock_wait_private () at
../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f093a5c1d44 in ___fprintf_chk (fp=0x7f093a86d750
<_IO_stdfile_2_lock>, flag=1, format=0x7f0918b737b4 "[%s] %s\n") at
fprintf_chk.c:30
#2  0x00007f0918b5b51e in  () at /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#3  0x00007f0918b5b714 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#4  0x00007f0918b5fd38 in  () at /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#5  0x00007f0918b49efa in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#6  0x00007f0925ac91fe in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0925b05a84 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0925aef9d5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0924cdd548 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0924cdd97b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f0925b1ea68 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f09301ee6da in start_thread (arg=0x7f08d1dee700) at
pthread_create.c:456
#14 0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 12 (Thread 0x7f08d25ef700 (LWP 3407)):
#0  0x00007f09301f4510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0925b128c5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f0925b12995 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f0925af37f3 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0925b05a84 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0925aef9d5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0924cdd498 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0924cdd96b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0925b1ea68 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f09301ee6da in start_thread (arg=0x7f08d25ef700) at
pthread_create.c:456
#11 0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 11 (Thread 0x7f08d2df0700 (LWP 3406)):
#0  0x00007f09301f48b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f0925b120a2 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f0925b21658 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f0925b21b8d in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f09301ee6da in start_thread (arg=0x7f08d2df0700) at
pthread_create.c:456
#6  0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 10 (Thread 0x7f08d35f1700 (LWP 3405)):
#0  0x00007f09301f48b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f0925b120a2 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f0925b21658 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f0925b21b8d in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f09301ee6da in start_thread (arg=0x7f08d35f1700) at
pthread_create.c:456
#6  0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 9 (Thread 0x7f08d3df2700 (LWP 3404)):
#0  0x00007f09301f4510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0925b128c5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f0925b12995 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f0925af37f3 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0925b05a84 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0925aef9d5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0925b1e9ea in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f09301ee6da in start_thread (arg=0x7f08d3df2700) at
pthread_create.c:456
#9  0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 8 (Thread 0x7f08e08ef700 (LWP 3403)):
#0  0x00007f093a4f78e5 in _IO_vfprintf_internal (s=s at entry=0x7f093a86c520
<_IO_2_1_stderr_>, format=0x7f0918b737b4 "[%s] %s\n",
ap=ap at entry=0x7f08e08ee208) at vfprintf.c:1290
#1  0x00007f093a5c1d99 in ___fprintf_chk (fp=0x7f093a86c520 <_IO_2_1_stderr_>,
flag=1, format=<optimized out>) at fprintf_chk.c:35
#2  0x00007f0918b5b51e in  () at /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#3  0x00007f0918b5b714 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#4  0x00007f0918b5fd38 in  () at /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#5  0x00007f0918b49efa in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#6  0x00007f0925ac91fe in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0925b05a84 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0925aef9d5 in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0925b1e9ea in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0925b1ad5c in  () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f09301ee6da in start_thread (arg=0x7f08e08ef700) at
pthread_create.c:456
#12 0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 7 (Thread 0x7f08f2dbf700 (LWP 3394)):
#0  0x00007f092e420a79 in g_main_context_prepare () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f092e42149b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f092e42168c in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f093b0e0f2b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f093b08a88a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f093aeb7fe3 in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f093aebcc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f09301ee6da in start_thread (arg=0x7f08f2dbf700) at
pthread_create.c:456
#8  0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 6 (Thread 0x7f08f35c0700 (LWP 3393)):
#0  0x00007f092e41e55b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f092e420a0b in g_main_context_prepare () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f092e42149b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f092e42168c in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f093b0e0f2b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f093b08a88a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f093aeb7fe3 in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f093aebcc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f09301ee6da in start_thread (arg=0x7f08f35c0700) at
pthread_create.c:456
#9  0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 5 (Thread 0x7f08f3fff700 (LWP 3392)):
#0  0x00007f092e466ef4 in g_mutex_unlock () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f092e4204be in g_main_context_acquire () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f092e421425 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f092e42168c in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f093b0e0f2b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f093b08a88a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f093aeb7fe3 in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f093aebcc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f09301ee6da in start_thread (arg=0x7f08f3fff700) at
pthread_create.c:456
#9  0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 4 (Thread 0x7f08f96c5700 (LWP 3391)):
#0  0x00007f092e466ed9 in g_mutex_lock () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f092e420947 in g_main_context_prepare () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f092e42149b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f092e42168c in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f093b0e0f2b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f093b08a88a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f093aeb7fe3 in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f09395065c5 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f093aebcc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f09301ee6da in start_thread (arg=0x7f08f96c5700) at
pthread_create.c:456
#10 0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7f08fa694700 (LWP 3390)):
#0  0x00007f09301f4510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f08fee0e2fb in  () at /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#2  0x00007f08fee0e028 in  () at /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#3  0x00007f09301ee6da in start_thread (arg=0x7f08fa694700) at
pthread_create.c:456
#4  0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7f0904de4700 (LWP 3389)):
#0  0x00007f093a5a618d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f092d643c62 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f092d6458d7 in xcb_wait_for_event () at
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f09064b3ed9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f093aebcc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f09301ee6da in start_thread (arg=0x7f0904de4700) at
pthread_create.c:456
#6  0x00007f093a5b217f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7f093d633b80 (LWP 3388)):
[KCrash Handler]
#6  0x00007f08feff4f31 in  () at /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#7  0x00007f08feff514f in  () at /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#8  0x00007f08feff549e in  () at /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#9  0x00007f08fed05bd5 in  () at /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#10 0x00007f08fed05c28 in  () at /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#11 0x00007f093bdcb8d9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f093bd99391 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) ()
at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007f093bd99357 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) ()
at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f093bd99357 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) ()
at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f093bd99357 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) ()
at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f093bd99357 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) ()
at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f093bd99357 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) ()
at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f093bd99357 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) ()
at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f093bd99357 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) ()
at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f093bd99357 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) ()
at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f093bd99357 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) ()
at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f093bd99357 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) ()
at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f093bd711ed in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f093bd72a39 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f093bd73f22 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f093bd74907 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007f093bd9378f in QWidgetPrivate::syncBackingStore() () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007f093bdabb48 in QWidget::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f093beab11b in QMainWindow::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f0939fb9637 in KMainWindow::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#31 0x00007f0939ffedd5 in KXmlGuiWindow::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#32 0x00007f093bd6435c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#33 0x00007f093bd6bb11 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#34 0x00007f093b08c8a0 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007f093b08f02d in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00007f093b0e0b03 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007f092e421377 in g_main_context_dispatch () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007f092e4215e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007f092e42168c in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007f093b0e0f0f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00007f093b08a88a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#42 0x00007f093b092ffc in QCoreApplication::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#43 0x0000563abec8eaab in  ()
#44 0x00007f093a4ca3f1 in __libc_start_main (main=0x563abec8d8d0, argc=1,
argv=0x7ffd2d593e38, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffd2d593e28) at ../csu/libc-start.c:291
#45 0x0000563abec8f22a in _start ()

Reported using DrKonqi

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