Application: falkon (3.1.0)

Qt Version: 5.12.3
Frameworks Version: 5.59.0
Operating System: Linux 4.18.0-25-generic x86_64
Distribution: KDE neon User Edition 5.16

-- Information about the crash:
- What I was doing when the application crashed: Falkon crushed when added folder for bookmarks in root directory

The crash can be reproduced every time.

-- Backtrace:
Application: Falkon (falkon), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0f616e0b80 (LWP 13114))]

Thread 21 (Thread 0x7f0ebc9ae700 (LWP 13192)):
#0  0x00007f0f562249f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f0ebc9ad948) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f0ebc9ad8f8, cond=0x7f0ebc9ad920) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f0ebc9ad920, mutex=0x7f0ebc9ad8f8) at pthread_cond_wait.c:655
#3  0x00007f0f59bf7a49 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0f59bf8478 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0f59bf850f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0f59bb8fc8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0f59bbb7f6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0f59bbbb34 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0f59bfa561 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0f5621e6db in start_thread (arg=0x7f0ebc9ae700) at pthread_create.c:463
#11 0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f0ebd1af700 (LWP 13191)):
#0  0x00007f0f5f933bb7 in epoll_wait (epfd=71, events=0x7f0eb4002010, maxevents=32, timeout=30000) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x00007f0f52aab2c5 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#2  0x00007f0f52aa1114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f0f59bfddb4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0f59b982db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0f59bca311 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0f59bfa561 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0f5621e6db in start_thread (arg=0x7f0ebd1af700) at pthread_create.c:463
#8  0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f0ebe5bb700 (LWP 13174)):
#0  0x00007f0f5f926bf9 in __GI___poll (fds=0x7f0eb8003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0f54aae4c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0f54aae5dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0f60269dcb in QEventDispatcherGlib::processEvents (this=0x7f0eb8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f0f6020b03a in QEventLoop::exec (this=this@entry=0x7f0ebe5baa20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f0f600324ca in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#6  0x00007f0f60033c72 in QThreadPrivate::start (arg=0x563900bf3230) at thread/qthread_unix.cpp:361
#7  0x00007f0f5621e6db in start_thread (arg=0x7f0ebe5bb700) at pthread_create.c:463
#8  0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f0ec7fff700 (LWP 13170)):
#0  0x00007f0f5f926bf9 in __GI___poll (fds=0x7f0ec0004a10, nfds=1, timeout=10495) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0f54aae4c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0f54aae5dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0f60269daf in QEventDispatcherGlib::processEvents (this=0x7f0ec0000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#4  0x00007f0f6020b03a in QEventLoop::exec (this=this@entry=0x7f0ec7ffea20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f0f600324ca in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#6  0x00007f0f60033c72 in QThreadPrivate::start (arg=0x563900b2dd80) at thread/qthread_unix.cpp:361
#7  0x00007f0f5621e6db in start_thread (arg=0x7f0ec7fff700) at pthread_create.c:463
#8  0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f0f04903700 (LWP 13169)):
#0  0x00007f0f5f926bf9 in __GI___poll (fds=0x7f0ed4007030, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0f145db481 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007f0f145cce40 in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f0f145cd4d0 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f0f145cd560 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f0f145db3c9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f0f1437d318 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#7  0x00007f0f5621e6db in start_thread (arg=0x7f0f04903700) at pthread_create.c:463
#8  0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f0f057fa700 (LWP 13168)):
#0  0x00007f0f56224ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f0f057f9740, expected=0, futex_word=0x7f0f057f9928) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f0f057f97e0, mutex=0x7f0f057f98d8, cond=0x7f0f057f9900) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f0f057f9900, mutex=0x7f0f057f98d8, abstime=0x7f0f057f97e0) at pthread_cond_wait.c:667
#3  0x00007f0f59bf7b17 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0f59bf846a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0f59b76a80 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0f59b982db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0f59bca311 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0f59bfa561 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0f5621e6db in start_thread (arg=0x7f0f057fa700) at pthread_create.c:463
#10 0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f0f05ffb700 (LWP 13167)):
#0  0x00007f0f562249f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563900a70a88) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x563900a709c8, cond=0x563900a70a60) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x563900a70a60, mutex=0x563900a709c8) at pthread_cond_wait.c:655
#3  0x00007f0f59bf7a49 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0f5a4b0178 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0f59bcb7df in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0f59bfa561 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0f5621e6db in start_thread (arg=0x7f0f05ffb700) at pthread_create.c:463
#8  0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f0f067fc700 (LWP 13166)):
#0  0x00007f0f5f933bb7 in epoll_wait (epfd=41, events=0x7f0ee0002010, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x00007f0f52aab2c5 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#2  0x00007f0f52aa1114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f0f59bfdccd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0f59b982db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0f59bca311 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0f59bfa561 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0f5621e6db in start_thread (arg=0x7f0f067fc700) at pthread_create.c:463
#8  0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f0f06ffd700 (LWP 13165)):
#0  0x00007f0f56224ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f0f06ffc740, expected=0, futex_word=0x7f0f06ffc928) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f0f06ffc7e0, mutex=0x7f0f06ffc8d8, cond=0x7f0f06ffc900) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f0f06ffc900, mutex=0x7f0f06ffc8d8, abstime=0x7f0f06ffc7e0) at pthread_cond_wait.c:667
#3  0x00007f0f59bf7b17 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0f59bf846a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0f59b76a80 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0f59b982db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0f59bca311 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0f59bfa561 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0f5621e6db in start_thread (arg=0x7f0f06ffd700) at pthread_create.c:463
#10 0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f0f077fe700 (LWP 13164)):
#0  0x00007f0f562249f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f0f077fd948) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f0f077fd8f8, cond=0x7f0f077fd920) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f0f077fd920, mutex=0x7f0f077fd8f8) at pthread_cond_wait.c:655
#3  0x00007f0f59bf7a49 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0f59bf8478 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0f59bf850f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0f59bb8fc8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0f59bbb7f6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0f59bbbaf4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0f59bfa561 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0f5621e6db in start_thread (arg=0x7f0f077fe700) at pthread_create.c:463
#11 0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f0f07fff700 (LWP 13163)):
#0  0x00007f0f5f933bb7 in epoll_wait (epfd=33, events=0x7f0ef4001fd0, maxevents=32, timeout=31578) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x00007f0f52aab2c5 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#2  0x00007f0f52aa1114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f0f59bfddb4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0f59b982db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0f5955f514 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0f59bca468 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0f59bfa561 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0f5621e6db in start_thread (arg=0x7f0f07fff700) at pthread_create.c:463
#9  0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f0f15ffb700 (LWP 13160)):
#0  0x00007f0f56224ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f0f15ffa750, expected=0, futex_word=0x7f0f15ffa938) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f0f15ffa7f0, mutex=0x7f0f15ffa8e8, cond=0x7f0f15ffa910) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f0f15ffa910, mutex=0x7f0f15ffa8e8, abstime=0x7f0f15ffa7f0) at pthread_cond_wait.c:667
#3  0x00007f0f59bf7b17 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0f59bf846a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0f59bf8552 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0f59bb8fb1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0f59bbb7f6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0f59bbbab4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0f59bfa561 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0f5621e6db in start_thread (arg=0x7f0f15ffb700) at pthread_create.c:463
#11 0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f0f167fc700 (LWP 13159)):
#0  0x00007f0f56224ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f0f167fb750, expected=0, futex_word=0x7f0f167fb938) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f0f167fb7f0, mutex=0x7f0f167fb8e8, cond=0x7f0f167fb910) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f0f167fb910, mutex=0x7f0f167fb8e8, abstime=0x7f0f167fb7f0) at pthread_cond_wait.c:667
#3  0x00007f0f59bf7b17 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0f59bf846a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0f59bf8552 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0f59bb8fb1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0f59bbb7f6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0f59bbbab4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0f59bfa561 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0f5621e6db in start_thread (arg=0x7f0f167fc700) at pthread_create.c:463
#11 0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f0f16ffd700 (LWP 13158)):
#0  0x00007f0f5f933bb7 in epoll_wait (epfd=29, events=0x7f0f0c002000, maxevents=32, timeout=331573) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x00007f0f52aab2c5 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#2  0x00007f0f52aa1114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f0f59bfddb4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0f59b982db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0f59bbf544 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0f59bca468 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0f59bfa561 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0f5621e6db in start_thread (arg=0x7f0f16ffd700) at pthread_create.c:463
#9  0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f0f177fe700 (LWP 13157)):
#0  0x00007f0f5f92903f in __GI___select (nfds=28, readfds=0x7f0f177fd9a0, writefds=0x0, exceptfds=0x0, timeout=0x0) at ../sysdeps/unix/sysv/linux/select.c:41
#1  0x00007f0f59b5e634 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f0f59bfa561 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f0f5621e6db in start_thread (arg=0x7f0f177fe700) at pthread_create.c:463
#4  0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f0f17fff700 (LWP 13156)):
#0  0x00007f0f5f933bb7 in epoll_wait (epfd=21, events=0x7f0f10002010, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x00007f0f52aab2c5 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#2  0x00007f0f52aa1114 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f0f59bfdccd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0f59b982db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0f59bca311 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0f59bfa561 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0f5621e6db in start_thread (arg=0x7f0f17fff700) at pthread_create.c:463
#8  0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f0f24a17700 (LWP 13155)):
#0  0x00007f0f5f8f66c2 in __GI___waitpid (pid=13152, stat_loc=0x7f0f24a16824, options=0) at ../sysdeps/unix/sysv/linux/waitpid.c:30
#1  0x00007f0f59bf3f06 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f0f59bf5234 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f0f59bf5369 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0f59bfa561 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0f5621e6db in start_thread (arg=0x7f0f24a17700) at pthread_create.c:463
#6  0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f0f25218700 (LWP 13150)):
#0  0x00007f0f5f926bf9 in __GI___poll (fds=0x7f0f25217810, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0f598c8aa2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f0f59bcb7df in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f0f59bfa561 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0f5621e6db in start_thread (arg=0x7f0f25218700) at pthread_create.c:463
#5  0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f0f26f3a700 (LWP 13136)):
#0  0x00007f0f5f926bf9 in __GI___poll (fds=0x7f0f2001d610, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0f54aae4c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0f54aae5dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0f60269daf in QEventDispatcherGlib::processEvents (this=0x7f0f20000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#4  0x00007f0f6020b03a in QEventLoop::exec (this=this@entry=0x7f0f26f399f0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f0f600324ca in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#6  0x00007f0f5e417015 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f0f60033c72 in QThreadPrivate::start (arg=0x7f0f5e68ed80) at thread/qthread_unix.cpp:361
#8  0x00007f0f5621e6db in start_thread (arg=0x7f0f26f3a700) at pthread_create.c:463
#9  0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f0f2d6e5700 (LWP 13135)):
#0  0x00007f0f562249f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5639006386c8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x563900638678, cond=0x5639006386a0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5639006386a0, mutex=0x563900638678) at pthread_cond_wait.c:655
#3  0x00007f0f2e9c93da in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f0f2e9c9107 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f0f5621e6db in start_thread (arg=0x7f0f2d6e5700) at pthread_create.c:463
#6  0x00007f0f5f93388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f0f616e0b80 (LWP 13114)):
[KCrash Handler]
#6  BookmarkItem::isUrl (this=0x0) at ./src/lib/bookmarks/bookmarkitem.cpp:55
#7  0x00007f0f6107017f in BookmarksManager::addBookmark (this=0x563908f8f490, item=0x56390915b8e0) at ./src/lib/bookmarks/bookmarksmanager.cpp:296
#8  0x00007f0f6107036c in BookmarksManager::addBookmark (this=0x563908f8f490) at ./src/lib/bookmarks/bookmarksmanager.cpp:173
#9  0x00007f0f6023c875 in QMetaObject::activate (sender=sender@entry=0x563908f9a5e0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fff07600d30) at kernel/qobject.cpp:3795
#10 0x00007f0f6023cf47 in QMetaObject::activate (sender=sender@entry=0x563908f9a5e0, m=m@entry=0x7f0f60ef24a0 <QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fff07600d30) at kernel/qobject.cpp:3648
#11 0x00007f0f60817f12 in QAction::triggered (this=this@entry=0x563908f9a5e0, _t1=<optimized out>) at .moc/moc_qaction.cpp:380
#12 0x00007f0f6081a52c in QAction::activate (this=0x563908f9a5e0, event=<optimized out>) at kernel/qaction.cpp:1166
#13 0x00007f0f6099012c in QMenuPrivate::activateCausedStack (this=this@entry=0x7f0ef40b5980, causedStack=..., action=action@entry=0x563908f9a5e0, action_e=action_e@entry=QAction::Trigger, self=self@entry=true) at widgets/qmenu.cpp:1354
#14 0x00007f0f6099769b in QMenuPrivate::activateAction (this=this@entry=0x7f0ef40b5980, action=action@entry=0x563908f9a5e0, action_e=action_e@entry=QAction::Trigger, self=self@entry=true) at widgets/qmenu.cpp:1431
#15 0x00007f0f60998513 in QMenu::mouseReleaseEvent (this=<optimized out>, e=0x7fff07601410) at widgets/qmenu.cpp:2924
#16 0x00007f0f6085e9c8 in QWidget::event (this=this@entry=0x7fff07601d60, event=event@entry=0x7fff07601410) at kernel/qwidget.cpp:9322
#17 0x00007f0f6099a7db in QMenu::event (this=0x7fff07601d60, e=0x7fff07601410) at widgets/qmenu.cpp:3046
#18 0x00007f0f6081e65c in QApplicationPrivate::notify_helper (this=this@entry=0x563900587e80, receiver=receiver@entry=0x7fff07601d60, e=e@entry=0x7fff07601410) at kernel/qapplication.cpp:3736
#19 0x00007f0f60826a58 in QApplication::notify (this=<optimized out>, receiver=0x7fff07601d60, e=0x7fff07601410) at kernel/qapplication.cpp:3197
#20 0x00007f0f6020cd18 in QCoreApplication::notifyInternal2 (receiver=0x7fff07601d60, event=0x7fff07601410) at kernel/qcoreapplication.cpp:1060
#21 0x00007f0f6020cefe in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x7fff07601d60, event=event@entry=0x7fff07601410) at kernel/qcoreapplication.cpp:1462
#22 0x00007f0f6082505f in QApplicationPrivate::sendMouseEvent (receiver=0x7fff07601d60, event=event@entry=0x7fff07601410, alienWidget=0x0, nativeWidget=0x7fff07601d60, buttonDown=buttonDown@entry=0x7f0f60f218d0 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2683
#23 0x00007f0f60879f84 in QWidgetWindow::handleMouseEvent (this=this@entry=0x5639090172c0, event=event@entry=0x7fff076018a0) at kernel/qwidgetwindow.cpp:558
#24 0x00007f0f6087c6fa in QWidgetWindow::event (this=0x5639090172c0, event=0x7fff076018a0) at kernel/qwidgetwindow.cpp:281
#25 0x00007f0f6081e65c in QApplicationPrivate::notify_helper (this=this@entry=0x563900587e80, receiver=receiver@entry=0x5639090172c0, e=e@entry=0x7fff076018a0) at kernel/qapplication.cpp:3736
#26 0x00007f0f60825b90 in QApplication::notify (this=0x7fff07602ea0, receiver=0x5639090172c0, e=0x7fff076018a0) at kernel/qapplication.cpp:3483
#27 0x00007f0f6020cd18 in QCoreApplication::notifyInternal2 (receiver=0x5639090172c0, event=0x7fff076018a0) at kernel/qcoreapplication.cpp:1060
#28 0x00007f0f6020cefe in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x5639090172c0, event=event@entry=0x7fff076018a0) at kernel/qcoreapplication.cpp:1462
#29 0x00007f0f5654a1fb in QGuiApplicationPrivate::processMouseEvent (e=0x5639090133d0) at kernel/qguiapplication.cpp:2102
#30 0x00007f0f5654b365 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x5639090133d0) at kernel/qguiapplication.cpp:1837
#31 0x00007f0f56523b4b in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1151
#32 0x00007f0f3e7cf59a in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#33 0x00007f0f54aae317 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f0f54aae550 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f0f54aae5dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f0f60269daf in QEventDispatcherGlib::processEvents (this=0x56390062ed00, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#37 0x00007f0f6020b03a in QEventLoop::exec (this=this@entry=0x7fff07601c40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#38 0x00007f0f60995380 in QMenu::exec (this=this@entry=0x7fff07601d60, p=..., action=action@entry=0x0) at widgets/qmenu.cpp:2657
#39 0x00007f0f610710e9 in BookmarksManager::createContextMenu (this=0x563908f8f490, pos=...) at ./src/lib/bookmarks/bookmarksmanager.cpp:141
#40 0x00007f0f6023c98f in QtPrivate::QSlotObjectBase::call (a=0x7fff07601ee0, r=0x563908f8f490, this=0x563909017a60) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#41 QMetaObject::activate (sender=sender@entry=0x563908f972d0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7fff07601ee0) at kernel/qobject.cpp:3776
#42 0x00007f0f6023cf47 in QMetaObject::activate (sender=sender@entry=0x563908f972d0, m=m@entry=0x7f0f6151fd40 <BookmarksTreeView::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7fff07601ee0) at kernel/qobject.cpp:3648
#43 0x00007f0f611db205 in BookmarksTreeView::contextMenuRequested (this=this@entry=0x563908f972d0, _t1=...) at ./obj-x86_64-linux-gnu/src/lib/FalkonPrivate_autogen/I42RO6U744/moc_bookmarkstreeview.cpp:225
#44 0x00007f0f6107bebc in BookmarksTreeView::contextMenuEvent (this=0x563908f972d0, event=0x7fff07602550) at ./src/lib/bookmarks/bookmarkstreeview.cpp:180
#45 0x00007f0f6085f7a4 in QWidget::event (this=this@entry=0x563908f972d0, event=event@entry=0x7fff07602550) at kernel/qwidget.cpp:9120
#46 0x00007f0f609017ee in QFrame::event (this=0x563908f972d0, e=0x7fff07602550) at widgets/qframe.cpp:550
#47 0x00007f0f60a78f43 in QAbstractItemView::viewportEvent (this=this@entry=0x563908f972d0, event=event@entry=0x7fff07602550) at itemviews/qabstractitemview.cpp:1750
#48 0x00007f0f60ae2bec in QTreeView::viewportEvent (this=0x563908f972d0, event=0x7fff07602550) at itemviews/qtreeview.cpp:1318
#49 0x00007f0f6020ca9d in QCoreApplicationPrivate::sendThroughObjectEventFilters (receiver=receiver@entry=0x563908f9b930, event=event@entry=0x7fff07602550) at kernel/qcoreapplication.cpp:1186
#50 0x00007f0f6081e635 in QApplicationPrivate::notify_helper (this=this@entry=0x563900587e80, receiver=receiver@entry=0x563908f9b930, e=e@entry=0x7fff07602550) at kernel/qapplication.cpp:3728
#51 0x00007f0f60826097 in QApplication::notify (this=<optimized out>, receiver=0x563908f9b930, e=0x7fff07602550) at kernel/qapplication.cpp:3343
#52 0x00007f0f6020cd18 in QCoreApplication::notifyInternal2 (receiver=0x563908f9b930, event=0x7fff07602550) at kernel/qcoreapplication.cpp:1060
#53 0x00007f0f6020cd64 in QCoreApplication::forwardEvent (receiver=receiver@entry=0x563908f9b930, event=event@entry=0x7fff07602550, originatingEvent=originatingEvent@entry=0x7fff07602a20) at kernel/qcoreapplication.cpp:1075
#54 0x00007f0f608799e5 in QWidgetWindow::handleMouseEvent (this=this@entry=0x5639090206a0, event=event@entry=0x7fff07602a20) at kernel/qwidgetwindow.cpp:670
#55 0x00007f0f6087c6fa in QWidgetWindow::event (this=0x5639090206a0, event=0x7fff07602a20) at kernel/qwidgetwindow.cpp:281
#56 0x00007f0f6081e65c in QApplicationPrivate::notify_helper (this=this@entry=0x563900587e80, receiver=receiver@entry=0x5639090206a0, e=e@entry=0x7fff07602a20) at kernel/qapplication.cpp:3736
#57 0x00007f0f60825b90 in QApplication::notify (this=0x7fff07602ea0, receiver=0x5639090206a0, e=0x7fff07602a20) at kernel/qapplication.cpp:3483
#58 0x00007f0f6020cd18 in QCoreApplication::notifyInternal2 (receiver=0x5639090206a0, event=0x7fff07602a20) at kernel/qcoreapplication.cpp:1060
#59 0x00007f0f6020cefe in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x5639090206a0, event=event@entry=0x7fff07602a20) at kernel/qcoreapplication.cpp:1462
#60 0x00007f0f5654a1fb in QGuiApplicationPrivate::processMouseEvent (e=0x5639090127d0) at kernel/qguiapplication.cpp:2102
#61 0x00007f0f5654b365 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x5639090127d0) at kernel/qguiapplication.cpp:1837
#62 0x00007f0f56523b4b in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1151
#63 0x00007f0f3e7cf59a in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#64 0x00007f0f54aae317 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#65 0x00007f0f54aae550 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#66 0x00007f0f54aae5dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#67 0x00007f0f60269daf in QEventDispatcherGlib::processEvents (this=0x56390062ed00, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#68 0x00007f0f6020b03a in QEventLoop::exec (this=this@entry=0x7fff07602dc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#69 0x00007f0f60214170 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1363
#70 0x00005639001534ba in main (argc=<optimized out>, argv=0x7fff076030a8) at ./src/main/main.cpp:155

Reported using DrKonqi