Application: kmail (5.9.3)

Qt Version: 5.11.3
Frameworks Version: 5.54.0
Operating System: Linux 4.19.0-5-amd64 x86_64
Distribution: Debian GNU/Linux 10 (buster)

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

The application closes unexpectedly when I navigate within kmail, regardless of whether or not I have open applications. I've tested both free and private nvidia drivers and even changed graphics card models, looking at bug reports with possible duplicate. The problem has persisted for months.

The crash can be reproduced every time.

-- Backtrace:
Application: KMail (kmail), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
__lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63
[Current thread is 1 (Thread 0x7ff73655df00 (LWP 22193))]

Thread 31 (Thread 0x7ff6f97fa700 (LWP 23589)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7ff6f97f9400, expected=0, futex_word=0x7ff6f97f95e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7ff6f97f94a0, mutex=0x7ff6f97f9598, cond=0x7ff6f97f95c0) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7ff6f97f95c0, mutex=0x7ff6f97f9598, abstime=0x7ff6f97f94a0) at pthread_cond_wait.c:667
#3  0x00007ff72f038a37 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f03b30a in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f03b3f2 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f03f981 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f040c7f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7ff5f77fe700 (LWP 23588)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7ff5f77fd400, expected=0, futex_word=0x7ff5f77fd5e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7ff5f77fd4a0, mutex=0x7ff5f77fd598, cond=0x7ff5f77fd5c0) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7ff5f77fd5c0, mutex=0x7ff5f77fd598, abstime=0x7ff5f77fd4a0) at pthread_cond_wait.c:667
#3  0x00007ff72f038a37 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f03b30a in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f03b3f2 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f03f981 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f040c7f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7ff6dffff700 (LWP 23587)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7ff6dfffe400, expected=0, futex_word=0x7ff6dfffe5e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7ff6dfffe4a0, mutex=0x7ff6dfffe598, cond=0x7ff6dfffe5c0) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7ff6dfffe5c0, mutex=0x7ff6dfffe598, abstime=0x7ff6dfffe4a0) at pthread_cond_wait.c:667
#3  0x00007ff72f038a37 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f03b30a in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f03b3f2 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f03f981 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f040e61 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7ff6df7fe700 (LWP 23257)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7ff6df7fd400, expected=0, futex_word=0x7ff6df7fd5e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7ff6df7fd4a0, mutex=0x7ff6df7fd598, cond=0x7ff6df7fd5c0) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7ff6df7fd5c0, mutex=0x7ff6df7fd598, abstime=0x7ff6df7fd4a0) at pthread_cond_wait.c:667
#3  0x00007ff72f038a37 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f03b30a in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f03b3f2 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f03f981 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f040e61 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7ff5f7fff700 (LWP 22318)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7ff5f7ffe400, expected=0, futex_word=0x7ff5f7ffe5e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7ff5f7ffe4a0, mutex=0x7ff5f7ffe598, cond=0x7ff5f7ffe5c0) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7ff5f7ffe5c0, mutex=0x7ff5f7ffe598, abstime=0x7ff5f7ffe4a0) at pthread_cond_wait.c:667
#3  0x00007ff72f038a37 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f03b30a in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f03b3f2 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f03f981 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f040e61 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7ff691497700 (LWP 22314)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7ff72cb63fb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7ff72cb63f68, cond=0x7ff72cb63f90) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7ff72cb63f90, mutex=0x7ff72cb63f68) at pthread_cond_wait.c:655
#3  0x00007ff72ca6de6a in ?? () from /lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007ff72ca6de89 in ?? () from /lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7ff69214e700 (LWP 22298)):
#0  0x00007ff737ad6819 in __GI___poll (fds=0x7ff67c001d50, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff734ab6136 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff734ab625c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff737ff387b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff737fa127b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff737df0ec6 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff737dfaaa7 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7ff693fff700 (LWP 22256)):
#0  __GI___libc_read (nbytes=10, buf=0x7ff693ffe4de, fd=65) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=65, buf=0x7ff693ffe4de, nbytes=10) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007ff7263f7f61 in pa_read () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so
#3  0x00007ff72a76557e in pa_mainloop_prepare () from /lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007ff72a765fe0 in pa_mainloop_iterate () from /lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007ff72a7660a0 in pa_mainloop_run () from /lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007ff72a774079 in ?? () from /lib/x86_64-linux-gnu/libpulse.so.0
#7  0x00007ff726427468 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so
#8  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7ff6d0ff9700 (LWP 22255)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7ff6d0ff83c0, expected=0, futex_word=0x7ff6d0ff85a8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7ff6d0ff8460, mutex=0x7ff6d0ff8558, cond=0x7ff6d0ff8580) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7ff6d0ff8580, mutex=0x7ff6d0ff8558, abstime=0x7ff6d0ff8460) at pthread_cond_wait.c:667
#3  0x00007ff72f038a37 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f03b30a in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f00d370 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f02cc8b in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f04e204 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7ff6d17fa700 (LWP 22254)):
#0  __GI___libc_write (nbytes=50, buf=0x7ff6d17f68f0, fd=2) at ../sysdeps/unix/sysv/linux/write.c:26
#1  __GI___libc_write (fd=2, buf=0x7ff6d17f68f0, nbytes=50) at ../sysdeps/unix/sysv/linux/write.c:24
#2  0x00007ff737a633bd in _IO_new_file_write (f=0x7ff737ba4680 <_IO_2_1_stderr_>, data=0x7ff6d17f68f0, n=50) at fileops.c:1183
#3  0x00007ff737a6275f in new_do_write (fp=fp@entry=0x7ff737ba4680 <_IO_2_1_stderr_>, data=data@entry=0x7ff6d17f68f0 "[warn] epoll_wait: Descriptor de fichero err\303\263neo\n", to_do=to_do@entry=50) at libioP.h:839
#4  0x00007ff737a63aee in _IO_new_file_xsputn (n=50, data=<optimized out>, f=0x7ff737ba4680 <_IO_2_1_stderr_>) at fileops.c:1262
#5  _IO_new_file_xsputn (f=0x7ff737ba4680 <_IO_2_1_stderr_>, data=<optimized out>, n=50) at fileops.c:1204
#6  0x00007ff737a3a932 in buffered_vfprintf (s=s@entry=0x7ff737ba4680 <_IO_2_1_stderr_>, format=format@entry=0x7ff72a14b848 "[%s] %s\n", args=args@entry=0x7ff6d17f8eb0) at ../libio/libioP.h:839
#7  0x00007ff737a37eb2 in _IO_vfprintf_internal (s=s@entry=0x7ff737ba4680 <_IO_2_1_stderr_>, format=0x7ff72a14b848 "[%s] %s\n", ap=ap@entry=0x7ff6d17f8eb0) at vfprintf.c:1296
#8  0x00007ff737af0536 in ___fprintf_chk (fp=0x7ff737ba4680 <_IO_2_1_stderr_>, flag=1, format=<optimized out>) at fprintf_chk.c:35
#9  0x00007ff72a133a5a in event_logv_ () from /lib/x86_64-linux-gnu/libevent-2.1.so.6
#10 0x00007ff72a133c34 in event_warn () from /lib/x86_64-linux-gnu/libevent-2.1.so.6
#11 0x00007ff72a135588 in ?? () from /lib/x86_64-linux-gnu/libevent-2.1.so.6
#12 0x00007ff72a12b329 in event_base_loop () from /lib/x86_64-linux-gnu/libevent-2.1.so.6
#13 0x00007ff72f00d7cd in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007ff72f02cc8b in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007ff72f04e204 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#16 0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#17 0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#18 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7ff6d1ffb700 (LWP 22253)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55efc23d1878) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55efc23d17b8, cond=0x55efc23d1850) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55efc23d1850, mutex=0x55efc23d17b8) at pthread_cond_wait.c:655
#3  0x00007ff72f038969 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f99e7d8 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f050d86 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7ff6d27fc700 (LWP 22252)):
[KCrash Handler]
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#7  0x00007ff737a0a535 in __GI_abort () at abort.c:79
#8  0x00007ff737a61508 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7ff737b6c28d "%s\n") at ../sysdeps/posix/libc_fatal.c:181
#9  0x00007ff737a67c1a in malloc_printerr (str=str@entry=0x7ff737b6dff8 "double free or corruption (out)") at malloc.c:5341
#10 0x00007ff737a69730 in _int_free (av=0x7ff737ba3c40 <main_arena>, p=0x7ff6a00e6b30, have_lock=<optimized out>) at malloc.c:4306
#11 0x00007ff737ee2323 in QDirIterator::~QDirIterator() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007ff737edd2a0 in QDir::entryList(QStringList const&, QFlags<QDir::Filter>, QFlags<QDir::SortFlag>) const () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007ff7390bb221 in KMKernel::cleanupTemporaryFiles() () from /lib/x86_64-linux-gnu/libkmailprivate.so.5
#14 0x00007ff738f14881 in KCrash::defaultCrashHandler(int) () from /lib/x86_64-linux-gnu/libKF5Crash.so.5
#15 <signal handler called>
#16 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#17 0x00007ff737a0a535 in __GI_abort () at abort.c:79
#18 0x00007ff737a61508 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7ff737b6c28d "%s\n") at ../sysdeps/posix/libc_fatal.c:181
#19 0x00007ff737a67c1a in malloc_printerr (str=str@entry=0x7ff737b6dfb0 "double free or corruption (fasttop)") at malloc.c:5341
#20 0x00007ff737a695d7 in _int_free (av=0x7ff6a0000020, p=0x7ff6a00e6b60, have_lock=<optimized out>) at malloc.c:4258
#21 0x00007ff71e864a98 in ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#22 0x00007ff71e864c87 in ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#23 0x00007ff71e864d17 in ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#24 0x00007ff71eb9f84e in ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#25 0x00007ff71eac10d0 in ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#26 0x00007ff72f91c7ab in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#27 0x00007ff72fb2ef30 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#28 0x00007ff72fb2f2b0 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#29 0x00007ff7316103d8 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#30 0x00007ff731610518 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#31 0x00007ff72efe9688 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#32 0x00007ff72f00a10a in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#33 0x00007ff72f00abaf in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#34 0x00007ff72f00ae88 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#35 0x00007ff72f00d328 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#36 0x00007ff72f02cc8b in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#37 0x00007ff72f04e204 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#38 0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#39 0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#40 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7ff6d2ffd700 (LWP 22251)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7ff6d2ffc5f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7ff6d2ffc5a8, cond=0x7ff6d2ffc5d0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7ff6d2ffc5d0, mutex=0x7ff6d2ffc5a8) at pthread_cond_wait.c:655
#3  0x00007ff72f038969 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f03b318 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f03b3af in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f03f998 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f040e61 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7ff6d37fe700 (LWP 22250)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63
#1  0x00007ff737a69783 in _int_free (av=0x7ff737ba3c40 <main_arena>, p=0x55efc328e380, have_lock=<optimized out>) at malloc.c:4294
#2  0x00007ff72e273e36 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007ff72e33f243 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72efe9688 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f00a10a in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f00abaf in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f00ad48 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f00d762 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff72f02cc8b in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007ff72e13ddba in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007ff72e13e267 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007ff72f04e338 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#15 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7ff6d3fff700 (LWP 22249)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7ff6d3ffe5f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7ff6d3ffe5a8, cond=0x7ff6d3ffe5d0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7ff6d3ffe5d0, mutex=0x7ff6d3ffe5a8) at pthread_cond_wait.c:655
#3  0x00007ff72f038969 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f03b318 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f03b3af in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f03f998 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f040c7f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7ff6dcff9700 (LWP 22248)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7ff6dcff85f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7ff6dcff85a8, cond=0x7ff6dcff85d0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7ff6dcff85d0, mutex=0x7ff6dcff85a8) at pthread_cond_wait.c:655
#3  0x00007ff72f038969 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f03b318 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f03b3af in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f03f998 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f040e61 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7ff6dd7fa700 (LWP 22247)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7ff6dd7f95f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7ff6dd7f95a8, cond=0x7ff6dd7f95d0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7ff6dd7f95d0, mutex=0x7ff6dd7f95a8) at pthread_cond_wait.c:655
#3  0x00007ff72f038969 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f03b318 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f03b3af in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f03f998 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f040c7f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7ff6ddffb700 (LWP 22246)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7ff6ddffa5f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7ff6ddffa5a8, cond=0x7ff6ddffa5d0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7ff6ddffa5d0, mutex=0x7ff6ddffa5a8) at pthread_cond_wait.c:655
#3  0x00007ff72f038969 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f03b318 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f03b3af in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f03f998 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f040c7f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7ff6de7fc700 (LWP 22245)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7ff6de7fb5f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7ff6de7fb5a8, cond=0x7ff6de7fb5d0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7ff6de7fb5d0, mutex=0x7ff6de7fb5a8) at pthread_cond_wait.c:655
#3  0x00007ff72f038969 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f03b318 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f03b3af in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f03f998 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f040c7f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7ff6f8ff9700 (LWP 22241)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7ff6f8ff8400, expected=0, futex_word=0x7ff6f8ff85e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7ff6f8ff84a0, mutex=0x7ff6f8ff8598, cond=0x7ff6f8ff85c0) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7ff6f8ff85c0, mutex=0x7ff6f8ff8598, abstime=0x7ff6f8ff84a0) at pthread_cond_wait.c:667
#3  0x00007ff72f038a37 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f03b30a in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f03b3f2 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f03f981 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f040e61 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7ff6f9ffb700 (LWP 22239)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7ff6f9ffa400, expected=0, futex_word=0x7ff6f9ffa5e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7ff6f9ffa4a0, mutex=0x7ff6f9ffa598, cond=0x7ff6f9ffa5c0) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7ff6f9ffa5c0, mutex=0x7ff6f9ffa598, abstime=0x7ff6f9ffa4a0) at pthread_cond_wait.c:667
#3  0x00007ff72f038a37 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f03b30a in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f03b3f2 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f03f981 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f040e61 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7ff6fa7fc700 (LWP 22238)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63
#1  0x00007ff737af04e4 in ___fprintf_chk (fp=0x7ff737ba58b0 <_IO_stdfile_2_lock>, flag=1, format=0x7ff72a14b848 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007ff72a133a5a in event_logv_ () from /lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007ff72a133c34 in event_warn () from /lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007ff72a135588 in ?? () from /lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007ff72a12b329 in event_base_loop () from /lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007ff72f00d7cd in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f02cc8b in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f04e204 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7ff6faffd700 (LWP 22237)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7ff6faffc588) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7ff6faffc538, cond=0x7ff6faffc560) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7ff6faffc560, mutex=0x7ff6faffc538) at pthread_cond_wait.c:655
#3  0x00007ff72f038969 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72f03b318 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff72f03b3af in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007ff72f00d35f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f02cc8b in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f04e204 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7ff6fb7fe700 (LWP 22236)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63
#1  0x00007ff737af04e4 in ___fprintf_chk (fp=0x7ff737ba58b0 <_IO_stdfile_2_lock>, flag=1, format=0x7ff72a14b848 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007ff72a133a5a in event_logv_ () from /lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007ff72a133c34 in event_warn () from /lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007ff72a135588 in ?? () from /lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007ff72a12b329 in event_base_loop () from /lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007ff72f00d779 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007ff72f02cc8b in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007ff72f04e204 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007ff72f049c81 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7ff70d837700 (LWP 22231)):
#0  0x00007ff737ad6819 in __GI___poll (fds=0x7ff6f40049b0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff734ab6136 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff734ab625c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff737ff387b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff737fa127b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff737df0ec6 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff737dfaaa7 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7ff70effd700 (LWP 22221)):
#0  0x00007ff734ab306f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff734ab55a3 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff734ab606b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff734ab625c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff737ff387b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff737fa127b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff737df0ec6 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff737dfaaa7 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7ff70f7fe700 (LWP 22219)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:56
#1  0x00007ff737ad6806 in __GI___poll (fds=0x7ff6fc003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007ff734ab6136 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff734ab625c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff737ff387b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff737fa127b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff737df0ec6 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff737dfaaa7 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7ff70ffff700 (LWP 22218)):
#0  0x00007ff737ad6819 in __GI___poll (fds=0x7ff704004a10, nfds=1, timeout=9409) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff734ab6136 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff734ab625c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff737ff387b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff737fa127b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff737df0ec6 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff737dfaaa7 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7ff71d6d7700 (LWP 22215)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63
#1  0x00007ff737a6cf1e in __GI___libc_realloc (oldmem=0x55efc221dc60, bytes=128) at malloc.c:3220
#2  0x00007ff737dfb60c in QArrayData::reallocateUnaligned(QArrayData*, unsigned long, unsigned long, QFlags<QArrayData::AllocationOption>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007ff737dfd592 in QByteArray::reallocData(unsigned int, QFlags<QArrayData::AllocationOption>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff737dfd750 in QByteArray::resize(int) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff737ff6b4b in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff737ff6eb5 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff737ffb4dc in QTextCodec::fromUnicode(QStringView) const () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff737e6f721 in QString::toLocal8Bit_helper(QChar const*, int) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff737deb993 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007ff7363363bc in ?? () from /lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi2
#11 0x00007ff737de6e55 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007ff737de7008 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007ff737db924f in QMessageLogger::warning(char const*, ...) const () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007ff737ff370e in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007ff734ab5b11 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007ff734ab60e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007ff734ab625c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007ff737ff387b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007ff737fa127b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007ff737df0ec6 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007ff7375a6545 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#22 0x00007ff737dfaaa7 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#24 0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ff71e327700 (LWP 22213)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55efc2064d28) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55efc2064cd8, cond=0x55efc2064d00) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55efc2064d00, mutex=0x55efc2064cd8) at pthread_cond_wait.c:655
#3  0x00007ff71ecb3353 in ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#4  0x00007ff71ecb30a7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#5  0x00007ff73545ffa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007ff737ae14cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ff73655df00 (LWP 22193)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63
#1  0x00007ff737a6c558 in __GI___libc_malloc (bytes=1344) at malloc.c:3055
#2  0x00007ff72f009694 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007ff72f00ad18 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007ff72da1858d in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007ff737fcc13b in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff7389274b1 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#7  0x00007ff73892e950 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x00007ff737fa25a9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff737fa559b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007ff737ff4233 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007ff734ab5f2e in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007ff734ab61c8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007ff734ab625c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007ff737ff3863 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007ff720afd3e1 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#16 0x00007ff737fa127b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007ff737fa9262 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x000055efc0eaa33b in ?? ()
#19 0x00007ff737a0c09b in __libc_start_main (main=0x55efc0ea9430, argc=3, argv=0x7fff4ecdf088, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4ecdf078) at ../csu/libc-start.c:308
#20 0x000055efc0eaa4ea in _start ()
[Inferior 1 (process 22193) detached]

Possible duplicates by query: bug 394640, bug 392350, bug 387393, bug 381268, bug 375933.

Reported using DrKonqi