Application: konqueror (5.0.97)
 (Compiled from sources)
Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-50-generic x86_64
Distribution: Ubuntu 18.04.2 LTS

-- Information about the crash:
- What I was doing when the application crashed: crashed when OS boots up 
every time. seems like thier is a bug.

The crash can be reproduced every time.

-- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa14ae4a840 (LWP 2626))]

Thread 25 (Thread 0x7fa0937fe700 (LWP 2787)):
#0  0x00007fa13fde69f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c4251bb66c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55c4251bb618, cond=0x55c4251bb640) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55c4251bb640, mutex=0x55c4251bb618) at pthread_cond_wait.c:655
#3  0x00007fa102be4c95 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa102be5177 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa102be5f11 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa13fde06db in start_thread (arg=0x7fa0937fe700) at pthread_create.c:463
#8  0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7fa093fff700 (LWP 2782)):
#0  0x00007fa14a686187 in __GI___libc_write (fd=2, buf=0x7fa093ffbe00, nbytes=39) at ../sysdeps/unix/sysv/linux/write.c:27
#1  0x00007fa14a6011bd in _IO_new_file_write (f=0x7fa14a962680 <_IO_2_1_stderr_>, data=0x7fa093ffbe00, n=39) at fileops.c:1203
#2  0x00007fa14a601b2f in new_do_write (to_do=<optimized out>, data=0x7fa093ffbe00 "[warn] epoll_wait: Bad file descriptor\n", fp=0x7fa14a962680 <_IO_2_1_stderr_>) at fileops.c:457
#3  _IO_new_file_xsputn (f=0x7fa14a962680 <_IO_2_1_stderr_>, data=<optimized out>, n=39) at fileops.c:1277
#4  0x00007fa14a5d4707 in buffered_vfprintf (s=s@entry=0x7fa14a962680 <_IO_2_1_stderr_>, format=format@entry=0x7fa10e8ef6a8 "[%s] %s\n", args=args@entry=0x7fa093ffe3c0) at vfprintf.c:2350
#5  0x00007fa14a5d1726 in _IO_vfprintf_internal (s=s@entry=0x7fa14a962680 <_IO_2_1_stderr_>, format=0x7fa10e8ef6a8 "[%s] %s\n", ap=ap@entry=0x7fa093ffe3c0) at vfprintf.c:1301
#6  0x00007fa14a6a84c6 in ___fprintf_chk (fp=0x7fa14a962680 <_IO_2_1_stderr_>, flag=1, format=<optimized out>) at fprintf_chk.c:35
#7  0x00007fa10e8d79ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#8  0x00007fa10e8d7b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#9  0x00007fa10e8d946c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#10 0x00007fa10e8cf114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#11 0x00007fa102bb5ab9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fa102bb1da8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007fa102bce77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007fa102be64d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#16 0x00007fa13fde06db in start_thread (arg=0x7fa093fff700) at pthread_create.c:463
#17 0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7fa0c0ff9700 (LWP 2781)):
#0  0x00007fa13fde69f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fa0c0ff8a78) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fa0c0ff8a28, cond=0x7fa0c0ff8a50) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fa0c0ff8a50, mutex=0x7fa0c0ff8a28) at pthread_cond_wait.c:655
#3  0x00007fa102bda999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa102bda9c7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa102bb54db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa102bb1da8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa102bce77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa102be64d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa13fde06db in start_thread (arg=0x7fa0c0ff9700) at pthread_create.c:463
#11 0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fa0c17fa700 (LWP 2780)):
#0  0x00007fa13fde6ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fa0c17f9b20, expected=0, futex_word=0x7fa0ec0037a0) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fa0c17f9bc0, mutex=0x7fa0ec003750, cond=0x7fa0ec003778) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fa0ec003778, mutex=0x7fa0ec003750, abstime=0x7fa0c17f9bc0) at pthread_cond_wait.c:667
#3  0x00007fa102c13652 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa102be9799 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa102be9cfb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa13fde06db in start_thread (arg=0x7fa0c17fa700) at pthread_create.c:463
#8  0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fa0c1ffb700 (LWP 2779)):
#0  0x00007fa13fde6ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fa0c1ffab20, expected=0, futex_word=0x7fa0ec0037a4) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fa0c1ffabc0, mutex=0x7fa0ec003750, cond=0x7fa0ec003778) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fa0ec003778, mutex=0x7fa0ec003750, abstime=0x7fa0c1ffabc0) at pthread_cond_wait.c:667
#3  0x00007fa102c13652 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa102be9799 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa102be9cfb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa13fde06db in start_thread (arg=0x7fa0c1ffb700) at pthread_create.c:463
#8  0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fa0c27fc700 (LWP 2778)):
#0  0x00007fa13fde69f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c4251bb66c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55c4251bb618, cond=0x55c4251bb640) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55c4251bb640, mutex=0x55c4251bb618) at pthread_cond_wait.c:655
#3  0x00007fa102be4c95 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa102be5177 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa102be5f11 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa13fde06db in start_thread (arg=0x7fa0c27fc700) at pthread_create.c:463
#8  0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fa0c2ffd700 (LWP 2777)):
#0  0x00007fa13fde69f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fa0c2ffca78) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fa0c2ffca28, cond=0x7fa0c2ffca50) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fa0c2ffca50, mutex=0x7fa0c2ffca28) at pthread_cond_wait.c:655
#3  0x00007fa102bda999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa102bda9c7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa102bb54db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa102bb1da8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa102bce77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa102be64d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa13fde06db in start_thread (arg=0x7fa0c2ffd700) at pthread_create.c:463
#11 0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fa0c37fe700 (LWP 2776)):
#0  0x00007fa14a68abf9 in __GI___poll (fds=0x7fa0b0007030, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa13984c481 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007fa13983de40 in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fa13983e4d0 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fa13983e560 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fa13984c3c9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fa138caa318 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#7  0x00007fa13fde06db in start_thread (arg=0x7fa0c37fe700) at pthread_create.c:463
#8  0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fa0c3fff700 (LWP 2775)):
#0  0x00007fa13fde6ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fa0c3ffe910, expected=0, futex_word=0x7fa0c3ffea98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fa0c3ffe9b0, mutex=0x7fa0c3ffea48, cond=0x7fa0c3ffea70) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fa0c3ffea70, mutex=0x7fa0c3ffea48, abstime=0x7fa0c3ffe9b0) at pthread_cond_wait.c:667
#3  0x00007fa102c13652 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa102bda91e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa102bb552b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa102bb1da8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa102bce77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa102be64d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa13fde06db in start_thread (arg=0x7fa0c3fff700) at pthread_create.c:463
#11 0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fa0e4ff9700 (LWP 2774)):
#0  0x00007fa13fde69f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c4251c9ca8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55c4251c9be8, cond=0x55c4251c9c80) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55c4251c9c80, mutex=0x55c4251c9be8) at pthread_cond_wait.c:655
#3  0x00007fa10336c060 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa102be5f11 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa13fde06db in start_thread (arg=0x7fa0e4ff9700) at pthread_create.c:463
#7  0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fa0e57fa700 (LWP 2773)):
#0  0x00007fa13fde69f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fa0e57f9a78) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fa0e57f9a28, cond=0x7fa0e57f9a50) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fa0e57f9a50, mutex=0x7fa0e57f9a28) at pthread_cond_wait.c:655
#3  0x00007fa102bda999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa102bda9c7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa102bb54db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa102bb1da8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa102bce77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa102be64d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa13fde06db in start_thread (arg=0x7fa0e57fa700) at pthread_create.c:463
#11 0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fa0e5ffb700 (LWP 2772)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fa14a6a8474 in ___fprintf_chk (fp=0x7fa14a9638b0 <_IO_stdfile_2_lock>, flag=1, format=0x7fa10e8ef6a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007fa10e8d79ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fa10e8d7b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fa10e8d946c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fa10e8cf114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fa102bb5ab9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa102bb1da8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa102bce77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa10246c978 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa10246cf2b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fa102be6588 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007fa13fde06db in start_thread (arg=0x7fa0e5ffb700) at pthread_create.c:463
#14 0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fa0e67fc700 (LWP 2771)):
#0  0x00007fa13fde69f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fa0e67fb698) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fa0e67fb648, cond=0x7fa0e67fb670) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fa0e67fb670, mutex=0x7fa0e67fb648) at pthread_cond_wait.c:655
#3  0x00007fa102bda999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa102bda9c7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa102bb54db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa102bb1da8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa102bce77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa10246c8c8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa10246cf1b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa102be6588 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fa13fde06db in start_thread (arg=0x7fa0e67fc700) at pthread_create.c:463
#13 0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fa0e6ffd700 (LWP 2770)):
#0  0x00007fa13fde69f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fa0e6ffc698) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fa0e6ffc648, cond=0x7fa0e6ffc670) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fa0e6ffc670, mutex=0x7fa0e6ffc648) at pthread_cond_wait.c:655
#3  0x00007fa102bda999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa102bda9c7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa102bb54db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa102bb1da8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa102bce77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa10246c818 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa10246cf0b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa102be6588 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fa13fde06db in start_thread (arg=0x7fa0e6ffd700) at pthread_create.c:463
#13 0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fa0e77fe700 (LWP 2769)):
#0  0x00007fa13fde69f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fa0e77fd698) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fa0e77fd648, cond=0x7fa0e77fd670) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fa0e77fd670, mutex=0x7fa0e77fd648) at pthread_cond_wait.c:655
#3  0x00007fa102bda999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa102bda9c7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa102bb54db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa102bb1da8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa102bce77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa10246c768 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa10246cefb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa102be6588 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fa13fde06db in start_thread (arg=0x7fa0e77fe700) at pthread_create.c:463
#13 0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fa0e7fff700 (LWP 2768)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fa14a6a8474 in ___fprintf_chk (fp=0x7fa14a9638b0 <_IO_stdfile_2_lock>, flag=1, format=0x7fa10e8ef6a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007fa10e8d79ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fa10e8d7b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fa10e8d946c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fa10e8cf114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fa102bb5b0d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa102bb1da8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa102bce77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa10246c6b8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa10246ceeb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fa102be6588 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007fa13fde06db in start_thread (arg=0x7fa0e7fff700) at pthread_create.c:463
#14 0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fa0f4dfd700 (LWP 2767)):
#0  0x00007fa13fde69f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fa0f4dfc698) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fa0f4dfc648, cond=0x7fa0f4dfc670) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fa0f4dfc670, mutex=0x7fa0f4dfc648) at pthread_cond_wait.c:655
#3  0x00007fa102bda999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa102bda9c7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa102bb54db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa102bb1da8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa102bce77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa10246c608 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa10246cedb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa102be6588 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fa13fde06db in start_thread (arg=0x7fa0f4dfd700) at pthread_create.c:463
#13 0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fa0f55fe700 (LWP 2766)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fa14a6a8474 in ___fprintf_chk (fp=0x7fa14a9638b0 <_IO_stdfile_2_lock>, flag=1, format=0x7fa10e8ef6a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007fa10e8d79ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fa10e8d7b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fa10e8d946c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fa10e8cf114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fa102bb5b0d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa102bb1da8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa102bce77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa102be64d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa102be25eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fa13fde06db in start_thread (arg=0x7fa0f55fe700) at pthread_create.c:463
#12 0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fa1250e2700 (LWP 2637)):
#0  0x00007fa14a68abf9 in __GI___poll (fds=0x7fa108004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa13deb55c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa13deb56dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa144f749bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa144f19a1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa144d3823a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa146a3ed45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fa144d3d17d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa13fde06db in start_thread (arg=0x7fa1250e2700) at pthread_create.c:463
#9  0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fa125d7a700 (LWP 2635)):
#0  0x00007fa13fde69f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c424c32df8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55c424c32da8, cond=0x55c424c32dd0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55c424c32dd0, mutex=0x55c424c32da8) at pthread_cond_wait.c:655
#3  0x00007fa12cb4666b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fa12cb464e7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fa13fde06db in start_thread (arg=0x7fa125d7a700) at pthread_create.c:463
#6  0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fa12657b700 (LWP 2634)):
#0  0x00007fa13fde69f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c424c32c98) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55c424c32c48, cond=0x55c424c32c70) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55c424c32c70, mutex=0x55c424c32c48) at pthread_cond_wait.c:655
#3  0x00007fa12cb4666b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fa12cb464e7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fa13fde06db in start_thread (arg=0x7fa12657b700) at pthread_create.c:463
#6  0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fa126d7c700 (LWP 2633)):
#0  0x00007fa13fde69f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c424c32b38) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55c424c32ae8, cond=0x55c424c32b10) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55c424c32b10, mutex=0x55c424c32ae8) at pthread_cond_wait.c:655
#3  0x00007fa12cb4666b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fa12cb464e7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fa13fde06db in start_thread (arg=0x7fa126d7c700) at pthread_create.c:463
#6  0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fa12757d700 (LWP 2632)):
#0  0x00007fa13fde69f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c424c329d8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55c424c32988, cond=0x55c424c329b0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55c424c329b0, mutex=0x55c424c32988) at pthread_cond_wait.c:655
#3  0x00007fa12cb4666b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fa12cb464e7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fa13fde06db in start_thread (arg=0x7fa12757d700) at pthread_create.c:463
#6  0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fa1349e2700 (LWP 2629)):
#0  0x00007fa14a68abf9 in __GI___poll (fds=0x7fa1349e1c68, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa13f757747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fa13f75936a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fa1371652a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fa144d3d17d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa13fde06db in start_thread (arg=0x7fa1349e2700) at pthread_create.c:463
#6  0x00007fa14a69788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fa14ae4a840 (LWP 2626)):
[KCrash Handler]
#6  0x00007fa14a9bce78 in KonqView::url() const () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#7  0x00007fa14a9f2687 in KonqMainWindow::isPreloaded() const () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#8  0x00007fa14aa27ce9 in KonqSessionManager::saveCurrentSessionToFile(KConfig*, QList<KonqMainWindow*> const&) () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#9  0x00007fa14aa27f95 in KonqSessionManager::autoSaveSession() () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#10 0x00007fa144f4a665 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fa144f570d7 in QTimer::timeout(QTimer::QPrivateSignal) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fa144f57438 in QTimer::timerEvent(QTimerEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fa144f4b18b in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fa1460eb83c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007fa1460f3104 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007fa144f1b9e8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fa144f73e3e in QTimerInfoList::activateTimers() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007fa144f74601 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007fa13deb5417 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fa13deb5650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fa13deb56dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fa144f7499f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fa145722fb8 in QGuiApplication::sync() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#24 0x00007fa10f98930d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineWidgets.so.5
#25 0x00007fa1022230b8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#26 0x00007fa10224f61b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#27 0x00007fa102246f4b in QtWebEngineCore::WebContentsAdapter::load(QWebEngineHttpRequest const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#28 0x00007fa10224737e in QtWebEngineCore::WebContentsAdapter::load(QUrl const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#29 0x00007fa10fbc615b in ?? () from /usr/lib/x86_64-linux-gnu/libkwebenginepartlib.so
#30 0x00007fa10fbbc581 in WebEnginePart::openUrl(QUrl const&) () from /usr/lib/x86_64-linux-gnu/libkwebenginepartlib.so
#31 0x00007fa10fbc44fc in WebEngineBrowserExtension::restoreState(QDataStream&) () from /usr/lib/x86_64-linux-gnu/libkwebenginepartlib.so
#32 0x00007fa14a9c5179 in KonqView::restoreHistory() () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#33 0x00007fa14a9c5a16 in KonqView::loadHistoryConfig(KConfigGroup const&, QString const&) () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#34 0x00007fa14a9ca04b in KonqViewManager::loadItem(KConfigGroup const&, KonqFrameContainerBase*, QString const&, QUrl const&, bool, QUrl const&, QString const&, bool, int) () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#35 0x00007fa14a9ca691 in KonqViewManager::loadItem(KConfigGroup const&, KonqFrameContainerBase*, QString const&, QUrl const&, bool, QUrl const&, QString const&, bool, int) () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#36 0x00007fa14a9cb080 in KonqViewManager::loadRootItem(KConfigGroup const&, KonqFrameContainerBase*, QUrl const&, bool, QUrl const&, QString const&, bool, int) () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#37 0x00007fa14a9cc5e3 in KonqViewManager::loadViewConfigFromGroup(KConfigGroup const&, QString const&, QUrl const&, KonqOpenURLRequest const&, bool) () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#38 0x00007fa14aa03e00 in KonqMainWindow::readProperties(KConfigGroup const&) () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#39 0x00007fa14878eb88 in KMainWindow::readPropertiesInternal(KConfig*, int) () from /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#40 0x00007fa14878ebd2 in KMainWindow::restore(int, bool) () from /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#41 0x00007fa14aa3851c in kdemain () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#42 0x00007fa14a597b97 in __libc_start_main (main=0x55c422ffe780, argc=3, argv=0x7fff162a4358, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff162a4348) at ../csu/libc-start.c:310
#43 0x000055c422ffe7ba in _start ()

Possible duplicates by query: bug 407511, bug 406126, bug 406089, bug 402777, bug 399859.

Reported using DrKonqi