Application: kdeinit5 (5.0.97)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 5.0.0-27-generic x86_64
Distribution: Ubuntu 18.04.3 LTS

-- Information about the crash:
- What I was doing when the application crashed:
Shutting down computer after closing Konqueror, the next time computer is booted I see a Crash in Konqueror when the desktop appears. There's no sign during shutdown that Konqueror has crashed.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Konqueror (kdeinit5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ffbee52ce40 (LWP 1713))]

Thread 21 (Thread 0x7ffb65ffb700 (LWP 1810)):
#0  0x00007ffbec5c66ac in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007ffbec5c8474 in ___fprintf_chk (fp=0x7ffbec8838b0 <_IO_stdfile_2_lock>, flag=1, format=0x7ffbb5d1d6a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007ffbb5d059ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007ffbb5d05b44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007ffbb5d0746c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007ffbb5cfd114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007ffbb7e0fb0d in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ffbb7e0bda8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ffbb7e2877b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ffbb7e404d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007ffbeaa076db in start_thread (arg=0x7ffb65ffb700) at pthread_create.c:463
#12 0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7ffb667fc700 (LWP 1809)):
#0  0x00007ffbeaa0d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7ffb667fbb38) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ffbeaa0d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7ffb667fbae8, cond=0x7ffb667fbb10) at pthread_cond_wait.c:502
#2  0x00007ffbeaa0d9f3 in __pthread_cond_wait (cond=0x7ffb667fbb10, mutex=0x7ffb667fbae8) at pthread_cond_wait.c:655
#3  0x00007ffbb7e34999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ffbb7e349c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ffbb7e0f4db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ffbb7e0bda8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ffbb7e2877b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ffbb7e404d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007ffbeaa076db in start_thread (arg=0x7ffb667fc700) at pthread_create.c:463
#11 0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7ffb66ffd700 (LWP 1808)):
#0  0x00007ffbec5aabf9 in __GI___poll (fds=0x7ffb54007030, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffbdf0b4481 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007ffbdf0a5e40 in pa_mainloop_poll () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007ffbdf0a64d0 in pa_mainloop_iterate () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007ffbdf0a6560 in pa_mainloop_run () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007ffbdf0b43c9 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007ffbdec51318 in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#7  0x00007ffbeaa076db in start_thread (arg=0x7ffb66ffd700) at pthread_create.c:463
#8  0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7ffb677fe700 (LWP 1807)):
#0  0x00007ffbeaa0ded9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7ffb677fd9d0, expected=0, futex_word=0x7ffb677fdb58) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007ffbeaa0ded9 in __pthread_cond_wait_common (abstime=0x7ffb677fda70, mutex=0x7ffb677fdb08, cond=0x7ffb677fdb30) at pthread_cond_wait.c:533
#2  0x00007ffbeaa0ded9 in __pthread_cond_timedwait (cond=0x7ffb677fdb30, mutex=0x7ffb677fdb08, abstime=0x7ffb677fda70) at pthread_cond_wait.c:667
#3  0x00007ffbb7e6d652 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ffbb7e3491e in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ffbb7e0f52b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ffbb7e0bda8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ffbb7e2877b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ffbb7e404d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007ffbeaa076db in start_thread (arg=0x7ffb677fe700) at pthread_create.c:463
#11 0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7ffb67fff700 (LWP 1806)):
#0  0x00007ffbeaa0d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5576d8763038) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ffbeaa0d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5576d8762f78, cond=0x5576d8763010) at pthread_cond_wait.c:502
#2  0x00007ffbeaa0d9f3 in __pthread_cond_wait (cond=0x5576d8763010, mutex=0x5576d8762f78) at pthread_cond_wait.c:655
#3  0x00007ffbb85c6060 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ffbb7e3ff11 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ffbeaa076db in start_thread (arg=0x7ffb67fff700) at pthread_create.c:463
#7  0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7ffb84ff9700 (LWP 1805)):
#0  0x00007ffbeaa0d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5576d875619c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ffbeaa0d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5576d8756148, cond=0x5576d8756170) at pthread_cond_wait.c:502
#2  0x00007ffbeaa0d9f3 in __pthread_cond_wait (cond=0x5576d8756170, mutex=0x5576d8756148) at pthread_cond_wait.c:655
#3  0x00007ffbb7e3ec95 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ffbb7e3f177 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ffbb7e3ff11 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ffbeaa076db in start_thread (arg=0x7ffb84ff9700) at pthread_create.c:463
#8  0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7ffb857fa700 (LWP 1804)):
#0  0x00007ffbeaa0d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7ffb857f9b38) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ffbeaa0d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7ffb857f9ae8, cond=0x7ffb857f9b10) at pthread_cond_wait.c:502
#2  0x00007ffbeaa0d9f3 in __pthread_cond_wait (cond=0x7ffb857f9b10, mutex=0x7ffb857f9ae8) at pthread_cond_wait.c:655
#3  0x00007ffbb7e34999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ffbb7e349c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ffbb7e0f4db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ffbb7e0bda8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ffbb7e2877b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ffbb7e404d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007ffbeaa076db in start_thread (arg=0x7ffb857fa700) at pthread_create.c:463
#11 0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7ffb85ffb700 (LWP 1803)):
#0  0x00007ffbec5c66d9 in __lll_unlock_wake_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:341
#1  0x00007ffbec5c850c in _IO_acquire_lock_clear_flags2_fct (p=<synthetic pointer>) at ../libio/libioP.h:807
#2  0x00007ffbec5c850c in ___fprintf_chk (fp=0x7ffbec882680 <_IO_2_1_stderr_>, flag=1, format=<optimized out>) at fprintf_chk.c:30
#3  0x00007ffbb5d059ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007ffbb5d05b44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007ffbb5d0746c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007ffbb5cfd114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#7  0x00007ffbb7e0fbf3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ffbb7e0bda8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ffbb7e2877b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007ffbb76c6978 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007ffbb76c6f2b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007ffbb7e40588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007ffbeaa076db in start_thread (arg=0x7ffb85ffb700) at pthread_create.c:463
#15 0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7ffb867fc700 (LWP 1802)):
#0  0x00007ffbeaa0d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7ffb867fb758) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ffbeaa0d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7ffb867fb708, cond=0x7ffb867fb730) at pthread_cond_wait.c:502
#2  0x00007ffbeaa0d9f3 in __pthread_cond_wait (cond=0x7ffb867fb730, mutex=0x7ffb867fb708) at pthread_cond_wait.c:655
#3  0x00007ffbb7e34999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ffbb7e349c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ffbb7e0f4db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ffbb7e0bda8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ffbb7e2877b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ffbb76c68c8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ffbb76c6f1b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007ffbb7e40588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007ffbeaa076db in start_thread (arg=0x7ffb867fc700) at pthread_create.c:463
#13 0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7ffb86ffd700 (LWP 1801)):
#0  0x00007ffbeaa0d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7ffb86ffc758) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ffbeaa0d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7ffb86ffc708, cond=0x7ffb86ffc730) at pthread_cond_wait.c:502
#2  0x00007ffbeaa0d9f3 in __pthread_cond_wait (cond=0x7ffb86ffc730, mutex=0x7ffb86ffc708) at pthread_cond_wait.c:655
#3  0x00007ffbb7e34999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ffbb7e349c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ffbb7e0f4db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ffbb7e0bda8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ffbb7e2877b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ffbb76c6818 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ffbb76c6f0b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007ffbb7e40588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007ffbeaa076db in start_thread (arg=0x7ffb86ffd700) at pthread_create.c:463
#13 0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7ffb877fe700 (LWP 1800)):
#0  0x00007ffbeaa0d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7ffb877fd758) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ffbeaa0d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7ffb877fd708, cond=0x7ffb877fd730) at pthread_cond_wait.c:502
#2  0x00007ffbeaa0d9f3 in __pthread_cond_wait (cond=0x7ffb877fd730, mutex=0x7ffb877fd708) at pthread_cond_wait.c:655
#3  0x00007ffbb7e34999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ffbb7e349c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ffbb7e0f4db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ffbb7e0bda8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ffbb7e2877b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ffbb76c6768 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ffbb76c6efb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007ffbb7e40588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007ffbeaa076db in start_thread (arg=0x7ffb877fe700) at pthread_create.c:463
#13 0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7ffb87fff700 (LWP 1799)):
#0  0x00007ffbec5c66ac in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007ffbec5c8474 in ___fprintf_chk (fp=0x7ffbec8838b0 <_IO_stdfile_2_lock>, flag=1, format=0x7ffbb5d1d6a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007ffbb5d059ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007ffbb5d05b44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007ffbb5d0746c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007ffbb5cfd114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007ffbb7e0fb0d in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ffbb7e0bda8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ffbb7e2877b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ffbb76c66b8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007ffbb76c6eeb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007ffbb7e40588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007ffbeaa076db in start_thread (arg=0x7ffb87fff700) at pthread_create.c:463
#14 0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7ffba4f0a700 (LWP 1798)):
#0  0x00007ffbeaa0d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7ffba4f09758) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ffbeaa0d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7ffba4f09708, cond=0x7ffba4f09730) at pthread_cond_wait.c:502
#2  0x00007ffbeaa0d9f3 in __pthread_cond_wait (cond=0x7ffba4f09730, mutex=0x7ffba4f09708) at pthread_cond_wait.c:655
#3  0x00007ffbb7e34999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ffbb7e349c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ffbb7e0f4db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ffbb7e0bda8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ffbb7e2877b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ffbb76c6608 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ffbb76c6edb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007ffbb7e40588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007ffbeaa076db in start_thread (arg=0x7ffba4f0a700) at pthread_create.c:463
#13 0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7ffba570b700 (LWP 1797)):
#0  0x00007ffbeaa0ded9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7ffba570abe0, expected=0, futex_word=0x7ffb9c004420) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007ffbeaa0ded9 in __pthread_cond_wait_common (abstime=0x7ffba570ac80, mutex=0x7ffb9c0043d0, cond=0x7ffb9c0043f8) at pthread_cond_wait.c:533
#2  0x00007ffbeaa0ded9 in __pthread_cond_timedwait (cond=0x7ffb9c0043f8, mutex=0x7ffb9c0043d0, abstime=0x7ffba570ac80) at pthread_cond_wait.c:667
#3  0x00007ffbb7e6d652 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ffbb7e43799 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ffbb7e43cfb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ffbeaa076db in start_thread (arg=0x7ffba570b700) at pthread_create.c:463
#8  0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7ffba5f0c700 (LWP 1796)):
#0  0x00007ffbeaa0ded9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7ffba5f0bbe0, expected=0, futex_word=0x7ffb9c004424) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007ffbeaa0ded9 in __pthread_cond_wait_common (abstime=0x7ffba5f0bc80, mutex=0x7ffb9c0043d0, cond=0x7ffb9c0043f8) at pthread_cond_wait.c:533
#2  0x00007ffbeaa0ded9 in __pthread_cond_timedwait (cond=0x7ffb9c0043f8, mutex=0x7ffb9c0043d0, abstime=0x7ffba5f0bc80) at pthread_cond_wait.c:667
#3  0x00007ffbb7e6d652 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ffbb7e43799 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ffbb7e43cfb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ffbeaa076db in start_thread (arg=0x7ffba5f0c700) at pthread_create.c:463
#8  0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7ffba670d700 (LWP 1795)):
#0  0x00007ffbeaa0d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7ffba670cb38) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ffbeaa0d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7ffba670cae8, cond=0x7ffba670cb10) at pthread_cond_wait.c:502
#2  0x00007ffbeaa0d9f3 in __pthread_cond_wait (cond=0x7ffba670cb10, mutex=0x7ffba670cae8) at pthread_cond_wait.c:655
#3  0x00007ffbb7e34999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ffbb7e349c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ffbb7e0f4db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ffbb7e0bda8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ffbb7e2877b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ffbb7e404d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007ffbeaa076db in start_thread (arg=0x7ffba670d700) at pthread_create.c:463
#11 0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7ffba6f0e700 (LWP 1794)):
#0  0x00007ffbeaa0c2e4 in __pthread_rwlock_rdlock_full (abstime=0x0, rwlock=0x7ffbec882ca0 <lock>) at pthread_rwlock_common.c:342
#1  0x00007ffbeaa0c2e4 in __GI___pthread_rwlock_rdlock (rwlock=0x7ffbec882ca0 <lock>) at pthread_rwlock_rdlock.c:27
#2  0x00007ffbec4c8ca3 in _nl_find_domain (dirname=dirname@entry=0x7ffbec6511d0 <_nl_default_dirname> "/usr/share/locale", locale=locale@entry=0x7ffba6f0d7c0 "en", domainname=domainname@entry=0x7ffba6f0d7e0 "LC_MESSAGES/libc.mo", domainbinding=domainbinding@entry=0x0) at finddomain.c:86
#3  0x00007ffbec4c85c5 in __dcigettext (domainname=<optimized out>, msgid1=0x7ffbec64a18a "Bad file descriptor", msgid2=msgid2@entry=0x0, plural=plural@entry=0, n=n@entry=0, category=category@entry=5) at dcigettext.c:703
#4  0x00007ffbec4c6d7f in __GI___dcgettext (domainname=<optimized out>, msgid=<optimized out>, category=category@entry=5) at dcgettext.c:47
#5  0x00007ffbec533b28 in __GI___strerror_r (errnum=errnum@entry=9, buf=buf@entry=0x0, buflen=buflen@entry=0) at _strerror.c:71
#6  0x00007ffbec533a4f in strerror (errnum=9) at strerror.c:31
#7  0x00007ffbb5d05b31 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#8  0x00007ffbb5d0746c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#9  0x00007ffbb5cfd114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#10 0x00007ffbb7e0fb0d in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007ffbb7e0bda8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007ffbb7e2877b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007ffbb7e404d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007ffbb7e3c5eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007ffbeaa076db in start_thread (arg=0x7ffba6f0e700) at pthread_create.c:463
#16 0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7ffbc7fff700 (LWP 1750)):
#0  0x00007ffbee3559f0 in __tls_get_addr () at ../sysdeps/x86_64/tls_get_addr.S:30
#1  0x00007ffbec932006 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007ffbecb6a89a in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007ffbe8d9cb28 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffbe8d9d4fb in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffbe8d9d6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007ffbecb6a99b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ffbecb0f9fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ffbec92e23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ffbe49ead45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007ffbec93317d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007ffbeaa076db in start_thread (arg=0x7ffbc7fff700) at pthread_create.c:463
#12 0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7ffbce4ea700 (LWP 1725)):
#0  0x00007ffbeaa0d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5576d807f438) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ffbeaa0d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5576d807f3e8, cond=0x5576d807f410) at pthread_cond_wait.c:502
#2  0x00007ffbeaa0d9f3 in __pthread_cond_wait (cond=0x5576d807f410, mutex=0x5576d807f3e8) at pthread_cond_wait.c:655
#3  0x00007ffbcf4d20aa in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007ffbcf4d1dd7 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007ffbeaa076db in start_thread (arg=0x7ffbce4ea700) at pthread_create.c:463
#6  0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ffbd78b8700 (LWP 1724)):
#0  0x00007ffbec5aabf9 in __GI___poll (fds=0x7ffbd78b7d28, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffbed991747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ffbed99336a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ffbda03b5e9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007ffbec93317d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ffbeaa076db in start_thread (arg=0x7ffbd78b8700) at pthread_create.c:463
#6  0x00007ffbec5b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ffbee52ce40 (LWP 1713)):
[KCrash Handler]
#6  0x00007ffbdd52ce78 in KonqView::url() const () at /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#7  0x00007ffbdd562687 in KonqMainWindow::isPreloaded() const () at /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#8  0x00007ffbdd597ce9 in KonqSessionManager::saveCurrentSessionToFile(KConfig*, QList<KonqMainWindow*> const&) () at /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#9  0x00007ffbdd597f95 in KonqSessionManager::autoSaveSession() () at /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#10 0x00007ffbecb40645 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007ffbecb4d0b7 in QTimer::timeout(QTimer::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007ffbecb4d418 in QTimer::timerEvent(QTimerEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007ffbecb4116b in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007ffbeaf7683c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007ffbeaf7e104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007ffbecb119c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007ffbecb69e1e in QTimerInfoList::activateTimers() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007ffbecb6a5e1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007ffbe8d9d417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007ffbe8d9d650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007ffbe8d9d6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007ffbecb6a97f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007ffbed0cafb8 in QGuiApplication::sync() () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#24 0x00007ffbbd28a30d in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineWidgets.so.5
#25 0x00007ffbb747d0b8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#26 0x00007ffbb74a961b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#27 0x00007ffbb74a0f4b in QtWebEngineCore::WebContentsAdapter::load(QWebEngineHttpRequest const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#28 0x00007ffbb74a137e in QtWebEngineCore::WebContentsAdapter::load(QUrl const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#29 0x00007ffbbd4c715b in  () at /usr/lib/x86_64-linux-gnu/libkwebenginepartlib.so
#30 0x00007ffbbd4bd581 in WebEnginePart::openUrl(QUrl const&) () at /usr/lib/x86_64-linux-gnu/libkwebenginepartlib.so
#31 0x00007ffbbd4c54fc in WebEngineBrowserExtension::restoreState(QDataStream&) () at /usr/lib/x86_64-linux-gnu/libkwebenginepartlib.so
#32 0x00007ffbdd535179 in KonqView::restoreHistory() () at /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#33 0x00007ffbdd535a16 in KonqView::loadHistoryConfig(KConfigGroup const&, QString const&) () at /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#34 0x00007ffbdd53a04b in KonqViewManager::loadItem(KConfigGroup const&, KonqFrameContainerBase*, QString const&, QUrl const&, bool, QUrl const&, QString const&, bool, int) () at /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#35 0x00007ffbdd53a691 in KonqViewManager::loadItem(KConfigGroup const&, KonqFrameContainerBase*, QString const&, QUrl const&, bool, QUrl const&, QString const&, bool, int) () at /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#36 0x00007ffbdd53b080 in KonqViewManager::loadRootItem(KConfigGroup const&, KonqFrameContainerBase*, QUrl const&, bool, QUrl const&, QString const&, bool, int) () at /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#37 0x00007ffbdd53c5e3 in KonqViewManager::loadViewConfigFromGroup(KConfigGroup const&, QString const&, QUrl const&, KonqOpenURLRequest const&, bool) () at /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#38 0x00007ffbdd573e00 in KonqMainWindow::readProperties(KConfigGroup const&) () at /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#39 0x00007ffbe2f09b88 in KMainWindow::readPropertiesInternal(KConfig*, int) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#40 0x00007ffbe2f09bd2 in KMainWindow::restore(int, bool) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#41 0x00007ffbdd5a851c in kdemain () at /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#42 0x00005576d695769d in  ()
#43 0x00005576d6958c8b in  ()
#44 0x00005576d695951b in  ()
#45 0x00005576d695400c in  ()
#46 0x00007ffbec4b7b97 in __libc_start_main (main=0x5576d69536c0, argc=5, argv=0x7ffca58c8c18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffca58c8c08) at ../csu/libc-start.c:310
#47 0x00005576d6954c7a in _start ()

Possible duplicates by query: bug 408356, bug 406126, bug 398519.

Reported using DrKonqi