Bug 440356

Summary: Konqueror crashed while browsing the internet over a different browser (opera)
Product: [Applications] konqueror Reporter: midirecciondemail
Component: generalAssignee: Konqueror Developers <konq-bugs>
Status: REPORTED ---    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version: 5.0.97   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description midirecciondemail 2021-07-28 14:00:54 UTC 
Application: konqueror (5.0.97)
 (Compiled from sources)
Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-151-generic x86_64
Distribution: Ubuntu 18.04.5 LTS

-- Information about the crash:
- What I was doing when the application crashed:
This has happened a few times already. I left the computer unattended after browsing the internet (maybe three or four tabs opened at opera browser) and when I come back the system is just trying to run some process, but it can't. I can see that there is not enough memory to do so, I can hear de CPU working, but nothing seems to work out. So I just execute ALT+SysRq+REISUB and upon restart I get this Konqueror crashing warning despite not having executed Konqueror in the previous session. 
Kind regards.

-- 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 0x7f01480dccc0 (LWP 1429))]

Thread 20 (Thread 0x7f00c67fc700 (LWP 1576)):
#0  __strlen_sse2 () at ../sysdeps/x86_64/multiarch/../strlen.S:147
#1  0x00007f01478685d3 in _IO_vfprintf_internal (s=0x7f00c67f8d00, format=0x7f0116a906a8 "[%s] %s\n", ap=0x7f00c67fb3c0) at vfprintf.c:1643
#2  0x00007f0147869770 in buffered_vfprintf (s=s@entry=0x7f0147bf7680 <_IO_2_1_stderr_>, format=format@entry=0x7f0116a906a8 "[%s] %s\n", args=args@entry=0x7f00c67fb3c0) at vfprintf.c:2329
#3  0x00007f0147866826 in _IO_vfprintf_internal (s=s@entry=0x7f0147bf7680 <_IO_2_1_stderr_>, format=0x7f0116a906a8 "[%s] %s\n", ap=ap@entry=0x7f00c67fb3c0) at vfprintf.c:1301
#4  0x00007f014793d356 in ___fprintf_chk (fp=0x7f0147bf7680 <_IO_2_1_stderr_>, flag=1, format=<optimized out>) at fprintf_chk.c:35
#5  0x00007f0116a789ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f0116a78b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#7  0x00007f0116a7a46c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#8  0x00007f0116a70114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#9  0x00007f0118b82b0d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0118b7eda8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f0118b9b77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f0118bb34d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007f013d0756db in start_thread (arg=0x7f00c67fc700) at pthread_create.c:463
#15 0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f00c6ffd700 (LWP 1575)):
#0  0x00007f013d07bad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f00c6ffca78) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f00c6ffca28, cond=0x7f00c6ffca50) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f00c6ffca50, mutex=0x7f00c6ffca28) at pthread_cond_wait.c:655
#3  0x00007f0118ba7999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0118ba79c7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0118b824db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0118b7eda8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0118b9b77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0118bb34d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f013d0756db in start_thread (arg=0x7f00c6ffd700) at pthread_create.c:463
#11 0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f00c77fe700 (LWP 1574)):
#0  0x00007f013d07bad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563a8034150c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x563a803414b8, cond=0x563a803414e0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x563a803414e0, mutex=0x563a803414b8) at pthread_cond_wait.c:655
#3  0x00007f0118bb1c95 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0118bb2177 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0118bb2f11 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f013d0756db in start_thread (arg=0x7f00c77fe700) at pthread_create.c:463
#8  0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f00c7fff700 (LWP 1573)):
#0  0x00007f013d07bfb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f00c7ffeb20, expected=0, futex_word=0x7f00f40045f0) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f00c7ffebc0, mutex=0x7f00f40045a0, cond=0x7f00f40045c8) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f00f40045c8, mutex=0x7f00f40045a0, abstime=0x7f00c7ffebc0) at pthread_cond_wait.c:667
#3  0x00007f0118be0652 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0118bb6799 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0118bb6cfb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f013d0756db in start_thread (arg=0x7f00c7fff700) at pthread_create.c:463
#8  0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f00e0ff9700 (LWP 1572)):
#0  0x00007f013d07bfb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f00e0ff8b20, expected=0, futex_word=0x7f00f40045f4) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f00e0ff8bc0, mutex=0x7f00f40045a0, cond=0x7f00f40045c8) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f00f40045c8, mutex=0x7f00f40045a0, abstime=0x7f00e0ff8bc0) at pthread_cond_wait.c:667
#3  0x00007f0118be0652 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0118bb6799 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0118bb6cfb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f013d0756db in start_thread (arg=0x7f00e0ff9700) at pthread_create.c:463
#8  0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f00e17fa700 (LWP 1571)):
#0  0x00007f013d07bad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f00e17f9a78) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f00e17f9a28, cond=0x7f00e17f9a50) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f00e17f9a50, mutex=0x7f00e17f9a28) at pthread_cond_wait.c:655
#3  0x00007f0118ba7999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0118ba79c7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0118b824db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0118b7eda8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0118b9b77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0118bb34d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f013d0756db in start_thread (arg=0x7f00e17fa700) at pthread_create.c:463
#11 0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f00e1ffb700 (LWP 1570)):
#0  0x00007f014791b184 in __GI___libc_read (fd=49, buf=0x7f00e1ffab9e, nbytes=10) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f0135f0d0f1 in pa_read () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#2  0x00007f0136ad1a2e in pa_mainloop_prepare () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f0136ad24a0 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f0136ad2560 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f0136ae03c9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f0135f3c468 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#7  0x00007f013d0756db in start_thread (arg=0x7f00e1ffb700) at pthread_create.c:463
#8  0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f00e27fc700 (LWP 1569)):
#0  0x00007f013d07bfb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f00e27fb910, expected=0, futex_word=0x7f00e27fba98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f00e27fb9b0, mutex=0x7f00e27fba48, cond=0x7f00e27fba70) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f00e27fba70, mutex=0x7f00e27fba48, abstime=0x7f00e27fb9b0) at pthread_cond_wait.c:667
#3  0x00007f0118be0652 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0118ba791e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0118b8252b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0118b7eda8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0118b9b77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0118bb34d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f013d0756db in start_thread (arg=0x7f00e27fc700) at pthread_create.c:463
#11 0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f00e2ffd700 (LWP 1568)):
#0  0x00007f013d07bad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563a8034e358) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x563a8034e298, cond=0x563a8034e330) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x563a8034e330, mutex=0x563a8034e298) at pthread_cond_wait.c:655
#3  0x00007f0119339060 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0118bb2f11 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f013d0756db in start_thread (arg=0x7f00e2ffd700) at pthread_create.c:463
#7  0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f00e37fe700 (LWP 1567)):
#0  0x00007f013d07bad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f00e37fda78) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f00e37fda28, cond=0x7f00e37fda50) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f00e37fda50, mutex=0x7f00e37fda28) at pthread_cond_wait.c:655
#3  0x00007f0118ba7999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0118ba79c7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0118b824db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0118b7eda8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0118b9b77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0118bb34d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f013d0756db in start_thread (arg=0x7f00e37fe700) at pthread_create.c:463
#11 0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f00e3fff700 (LWP 1566)):
#0  0x00007ffceb9f2a35 in clock_gettime ()
#1  0x00007f014793bd36 in __GI___clock_gettime (clock_id=1, tp=0x7f00e3ffe590) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f0118bb80e5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f0118b81604 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0118b82ad6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0118b7eda8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0118b9b77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0118439978 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0118439f2b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0118bb3588 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f013d0756db in start_thread (arg=0x7f00e3fff700) at pthread_create.c:463
#12 0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f0100ff9700 (LWP 1565)):
#0  0x00007f013d07bad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f0100ff8698) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f0100ff8648, cond=0x7f0100ff8670) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f0100ff8670, mutex=0x7f0100ff8648) at pthread_cond_wait.c:655
#3  0x00007f0118ba7999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0118ba79c7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0118b824db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0118b7eda8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0118b9b77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f01184398c8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0118439f1b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0118bb3588 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f013d0756db in start_thread (arg=0x7f0100ff9700) at pthread_create.c:463
#13 0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f01017fa700 (LWP 1564)):
#0  0x00007f013d07bad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f01017f9698) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f01017f9648, cond=0x7f01017f9670) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f01017f9670, mutex=0x7f01017f9648) at pthread_cond_wait.c:655
#3  0x00007f0118ba7999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0118ba79c7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0118b824db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0118b7eda8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0118b9b77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0118439818 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0118439f0b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0118bb3588 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f013d0756db in start_thread (arg=0x7f01017fa700) at pthread_create.c:463
#13 0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f0101ffb700 (LWP 1563)):
#0  0x00007f013d07bad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f0101ffa698) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f0101ffa648, cond=0x7f0101ffa670) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f0101ffa670, mutex=0x7f0101ffa648) at pthread_cond_wait.c:655
#3  0x00007f0118ba7999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0118ba79c7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0118b824db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0118b7eda8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0118b9b77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0118439768 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0118439efb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0118bb3588 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f013d0756db in start_thread (arg=0x7f0101ffb700) at pthread_create.c:463
#13 0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f01027fc700 (LWP 1562)):
#0  0x00007f014792ca47 in epoll_wait (epfd=38, events=0x7f00ec0020d0, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x00007f0116a7a2c5 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#2  0x00007f0116a70114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f0118b82b0d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0118b7eda8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0118b9b77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f01184396b8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0118439eeb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0118bb3588 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f013d0756db in start_thread (arg=0x7f01027fc700) at pthread_create.c:463
#11 0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f0102ffd700 (LWP 1561)):
#0  0x00007f013d07bad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f0102ffc698) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f0102ffc648, cond=0x7f0102ffc670) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f0102ffc670, mutex=0x7f0102ffc648) at pthread_cond_wait.c:655
#3  0x00007f0118ba7999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0118ba79c7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0118b824db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0118b7eda8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0118b9b77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0118439608 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0118439edb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0118bb3588 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f013d0756db in start_thread (arg=0x7f0102ffd700) at pthread_create.c:463
#13 0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f01037fe700 (LWP 1560)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f014793d304 in ___fprintf_chk (fp=0x7f0147bf88b0 <_IO_stdfile_2_lock>, flag=1, format=0x7f0116a906a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f0116a789ad in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f0116a78b44 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f0116a7a46c in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f0116a70114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f0118b82ab9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0118b7eda8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0118b9b77b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0118bb34d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0118baf5eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f013d0756db in start_thread (arg=0x7f01037fe700) at pthread_create.c:463
#12 0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f0128712700 (LWP 1511)):
#0  __tls_get_addr () at ../sysdeps/x86_64/tls_get_addr.S:56
#1  0x00007f0141fd1006 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f01422097aa in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f013b148c48 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f013b14961b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f013b1497fc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f01422098ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f01421ae90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0141fcd23a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f0143cd3d45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007f0141fd217d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f013d0756db in start_thread (arg=0x7f0128712700) at pthread_create.c:463
#12 0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f013150e700 (LWP 1496)):
#0  0x00007f014791fcb9 in __GI___poll (fds=0x7f013150dc68, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f013c9ec747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f013c9ee36a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f0133c915e9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f0141fd217d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f013d0756db in start_thread (arg=0x7f013150e700) at pthread_create.c:463
#6  0x00007f014792c71f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f01480dccc0 (LWP 1429)):
[KCrash Handler]
#6  0x00007f0147c51e78 in KonqView::url() const () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#7  0x00007f0147c87687 in KonqMainWindow::isPreloaded() const () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#8  0x00007f0147cbcce9 in KonqSessionManager::saveCurrentSessionToFile(KConfig*, QList<KonqMainWindow*> const&) () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#9  0x00007f0147cbcf95 in KonqSessionManager::autoSaveSession() () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#10 0x00007f01421df555 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f01421ebfc7 in QTimer::timeout(QTimer::QPrivateSignal) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f01421ec328 in QTimer::timerEvent(QTimerEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f01421e007b in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f014338083c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f0143388104 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f01421b08d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f0142208d2e in QTimerInfoList::activateTimers() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f01422094f1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f013b149537 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f013b149770 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f013b1497fc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f014220988f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f01429b7fb8 in QGuiApplication::sync() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#24 0x00007f011dffd30d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineWidgets.so.5
#25 0x00007f01181f00b8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#26 0x00007f011821c61b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#27 0x00007f0118213f4b in QtWebEngineCore::WebContentsAdapter::load(QWebEngineHttpRequest const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#28 0x00007f011821437e in QtWebEngineCore::WebContentsAdapter::load(QUrl const&) () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#29 0x00007f011e23a15b in ?? () from /usr/lib/x86_64-linux-gnu/libkwebenginepartlib.so
#30 0x00007f011e230581 in WebEnginePart::openUrl(QUrl const&) () from /usr/lib/x86_64-linux-gnu/libkwebenginepartlib.so
#31 0x00007f011e2384fc in WebEngineBrowserExtension::restoreState(QDataStream&) () from /usr/lib/x86_64-linux-gnu/libkwebenginepartlib.so
#32 0x00007f0147c5a179 in KonqView::restoreHistory() () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#33 0x00007f0147c5aa16 in KonqView::loadHistoryConfig(KConfigGroup const&, QString const&) () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#34 0x00007f0147c5f04b 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 0x00007f0147c5f691 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 0x00007f0147c60080 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 0x00007f0147c615e3 in KonqViewManager::loadViewConfigFromGroup(KConfigGroup const&, QString const&, QUrl const&, KonqOpenURLRequest const&, bool) () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#38 0x00007f0147c98e00 in KonqMainWindow::readProperties(KConfigGroup const&) () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#39 0x00007f0145a23b88 in KMainWindow::readPropertiesInternal(KConfig*, int) () from /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#40 0x00007f0145a23bd2 in KMainWindow::restore(int, bool) () from /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#41 0x00007f0147ccd51c in kdemain () from /usr/lib/x86_64-linux-gnu/libkdeinit5_konqueror.so
#42 0x00007f014782cbf7 in __libc_start_main (main=0x563a7da48780, argc=3, argv=0x7ffceb818af8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffceb818ae8) at ../csu/libc-start.c:310
#43 0x0000563a7da487ba in _start ()

Possible duplicates by query: bug 438207.

Reported using DrKonqi