Bug 412485

Summary: "Akonadi server not operational" and KMail crashes
Product: [Applications] kontact Reporter: m.orly97
Component: generalAssignee: kdepim bugs <pim-bugs-null>
Status: RESOLVED UPSTREAM    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version First Reported In: 5.12.1   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description m.orly97 2019-09-30 16:37:23 UTC 
Application: kontact (5.12.1)

Qt Version: 5.12.3
Frameworks Version: 5.62.0
Operating System: Linux 5.0.0-29-generic x86_64
Distribution: KDE neon User Edition 5.16

-- Information about the crash:
- Unusual behavior I noticed:

Suddenly Akonadi stopped working: when I open KMail it says that "Akonadi server not operational"; if I change section in Kontact (for example from Mail to Calendar) the app crashes, and I assume that the two facts are linked somehow,

The crash can be reproduced every time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f005423fbc0 (LWP 11702))]

Thread 31 (Thread 0x7efee7fff700 (LWP 14020)):
#0  0x00007f0050b5f0b4 in __GI___libc_read (fd=103, buf=0x7efee7ffe7d0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f004a5e02d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f004a59b0b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f004a59b570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f004a59b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f00516bedcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f005166003a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f00514874ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0051488c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f004c4686db in start_thread (arg=0x7efee7fff700) at pthread_create.c:463
#10 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7efeef2fe700 (LWP 13602)):
#0  0x00007f0050b63bf9 in __GI___poll (fds=0x5582d371a3e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f004a59b5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f004a59b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f00516bedcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f005166003a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f00514874ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f0051488c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f004c4686db in start_thread (arg=0x7efeef2fe700) at pthread_create.c:463
#8  0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7eff0d6b0700 (LWP 13587)):
#0  0x00007f004c46eed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7eff0d6af710, expected=0, futex_word=0x7eff0d6af8f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f004c46eed9 in __pthread_cond_wait_common (abstime=0x7eff0d6af7b0, mutex=0x7eff0d6af8a8, cond=0x7eff0d6af8d0) at pthread_cond_wait.c:533
#2  0x00007f004c46eed9 in __pthread_cond_timedwait (cond=0x7eff0d6af8d0, mutex=0x7eff0d6af8a8, abstime=0x7eff0d6af7b0) at pthread_cond_wait.c:667
#3  0x00007f0041c57b17 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0041c5846a in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0041c58552 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0041c18fb1 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0041c1b4c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0041c1bab4 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f004c4686db in start_thread (arg=0x7eff0d6b0700) at pthread_create.c:463
#11 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7eff0fba2700 (LWP 13574)):
#0  0x00007f0050b5f0b4 in __GI___libc_read (fd=81, buf=0x7eff0fba17d0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f004a5e02d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f004a59b0b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f004a59b570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f004a59b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f00516bedcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f005166003a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f00514874ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0051488c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f004c4686db in start_thread (arg=0x7eff0fba2700) at pthread_create.c:463
#10 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7efefcca1700 (LWP 13570)):
#0  0x00007f0050b63bf9 in __GI___poll (fds=0x7efef4001220, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f004a59b5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f004a59b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f00516bedcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f005166003a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f00514874ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f0051488c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f004c4686db in start_thread (arg=0x7efefcca1700) at pthread_create.c:463
#8  0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7efefdeb2700 (LWP 11767)):
#0  0x00007f004a5e1664 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f004a59ab18 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f004a59b4fb in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f004a59b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f00516bedcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f005166003a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f00514874ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f0051488c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f004c4686db in start_thread (arg=0x7efefdeb2700) at pthread_create.c:463
#9  0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7efefe6b3700 (LWP 11766)):
#0  0x00007f0050b5f0b4 in __GI___libc_read (fd=92, buf=0x7efefe6b27d0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f004a5e02d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f004a59b0b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f004a59b570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f004a59b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f00516bedcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f005166003a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f00514874ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0051488c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f004c4686db in start_thread (arg=0x7efefe6b3700) at pthread_create.c:463
#10 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7eff0f3a1700 (LWP 11747)):
#0  0x00007f0050b5f0b4 in __GI___libc_read (fd=82, buf=0x7eff0f3a07d0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f004a5e02d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f004a59b0b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f004a59b570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f004a59b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f00516bedcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f005166003a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f00514874ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0051488c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f004c4686db in start_thread (arg=0x7eff0f3a1700) at pthread_create.c:463
#10 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7eff14bc4700 (LWP 11743)):
#0  0x00007f0050b63bf9 in __GI___poll (fds=0x7eff10004a10, nfds=1, timeout=9172) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f004a59b5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f004a59b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f00516bedcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f005166003a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f00514874ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f0051488c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f004c4686db in start_thread (arg=0x7eff14bc4700) at pthread_create.c:463
#8  0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7eff2e7fc700 (LWP 11742)):
#0  0x00007f004c46eed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7eff2e7fb710, expected=0, futex_word=0x7eff2e7fb8f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f004c46eed9 in __pthread_cond_wait_common (abstime=0x7eff2e7fb7b0, mutex=0x7eff2e7fb8a8, cond=0x7eff2e7fb8d0) at pthread_cond_wait.c:533
#2  0x00007f004c46eed9 in __pthread_cond_timedwait (cond=0x7eff2e7fb8d0, mutex=0x7eff2e7fb8a8, abstime=0x7eff2e7fb7b0) at pthread_cond_wait.c:667
#3  0x00007f0041c57b17 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0041c5846a in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0041c58552 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0041c18fb1 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0041c1b7f6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0041c1bab4 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f004c4686db in start_thread (arg=0x7eff2e7fc700) at pthread_create.c:463
#11 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7eff2effd700 (LWP 11730)):
#0  0x00007f004c46e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7eff2effc908) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f004c46e9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7eff2effc8b8, cond=0x7eff2effc8e0) at pthread_cond_wait.c:502
#2  0x00007f004c46e9f3 in __pthread_cond_wait (cond=0x7eff2effc8e0, mutex=0x7eff2effc8b8) at pthread_cond_wait.c:655
#3  0x00007f0041c57a49 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0041c58478 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0041c5850f in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0041c18fc8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0041c1b7f6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0041c1bb34 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f004c4686db in start_thread (arg=0x7eff2effd700) at pthread_create.c:463
#11 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7eff2f7fe700 (LWP 11729)):
#0  0x00007f0050b7f6ac in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f0050b81474 in ___fprintf_chk (fp=0x7f0050e3c8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7f00392936a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f003927b9ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f003927bb44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f003927d46c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f0039273114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f0041c5ddb4 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0041bf82db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0041c2a311 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f004c4686db in start_thread (arg=0x7eff2f7fe700) at pthread_create.c:463
#11 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7eff2ffff700 (LWP 11728)):
#0  0x00007f004c46eed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7eff2fffe710, expected=0, futex_word=0x7eff2fffe8f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f004c46eed9 in __pthread_cond_wait_common (abstime=0x7eff2fffe7b0, mutex=0x7eff2fffe8a8, cond=0x7eff2fffe8d0) at pthread_cond_wait.c:533
#2  0x00007f004c46eed9 in __pthread_cond_timedwait (cond=0x7eff2fffe8d0, mutex=0x7eff2fffe8a8, abstime=0x7eff2fffe7b0) at pthread_cond_wait.c:667
#3  0x00007f0041c57b17 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0041c5846a in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0041c58552 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0041c18fb1 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0041c1b7f6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0041c1bab4 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f004c4686db in start_thread (arg=0x7eff2ffff700) at pthread_create.c:463
#11 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7effedb77700 (LWP 11727)):
#0  0x00007f004c46e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f003a9bafb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f004c46e9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f003a9baf68, cond=0x7f003a9baf90) at pthread_cond_wait.c:502
#2  0x00007f004c46e9f3 in __pthread_cond_wait (cond=0x7f003a9baf90, mutex=0x7f003a9baf68) at pthread_cond_wait.c:655
#3  0x00007f003a6c4844 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f003a6c4889 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f004c4686db in start_thread (arg=0x7effedb77700) at pthread_create.c:463
#6  0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7effee378700 (LWP 11726)):
#0  0x00007f0050b63bf9 in __GI___poll (fds=0x7effbc007030, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0008383481 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007f0008374e40 in pa_mainloop_poll () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f00083754d0 in pa_mainloop_iterate () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f0008375560 in pa_mainloop_run () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f00083833c9 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f0008125318 in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#7  0x00007f004c4686db in start_thread (arg=0x7effee378700) at pthread_create.c:463
#8  0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7effeeffd700 (LWP 11725)):
#0  0x00007f0050b5f187 in __GI___libc_write (fd=2, buf=0x7effeeff9c40, nbytes=46) at ../sysdeps/unix/sysv/linux/write.c:27
#1  0x00007f0050ada1bd in _IO_new_file_write (f=0x7f0050e3b680 <_IO_2_1_stderr_>, data=0x7effeeff9c40, n=46) at fileops.c:1203
#2  0x00007f0050adab2f in new_do_write (to_do=<optimized out>, data=0x7effeeff9c40 "[warn] epoll_wait: Descrittore di file errato\n", fp=0x7f0050e3b680 <_IO_2_1_stderr_>) at fileops.c:457
#3  0x00007f0050adab2f in _IO_new_file_xsputn (f=0x7f0050e3b680 <_IO_2_1_stderr_>, data=<optimized out>, n=46) at fileops.c:1277
#4  0x00007f0050aad707 in buffered_vfprintf (s=s@entry=0x7f0050e3b680 <_IO_2_1_stderr_>, format=format@entry=0x7f00392936a8 "[%s] %s\n", args=args@entry=0x7effeeffc200) at vfprintf.c:2350
#5  0x00007f0050aaa726 in _IO_vfprintf_internal (s=s@entry=0x7f0050e3b680 <_IO_2_1_stderr_>, format=0x7f00392936a8 "[%s] %s\n", ap=ap@entry=0x7effeeffc200) at vfprintf.c:1301
#6  0x00007f0050b814c6 in ___fprintf_chk (fp=0x7f0050e3b680 <_IO_2_1_stderr_>, flag=1, format=<optimized out>) at fprintf_chk.c:35
#7  0x00007f003927b9ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#8  0x00007f003927bb44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#9  0x00007f003927d46c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#10 0x00007f0039273114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#11 0x00007f0041c5dc79 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f0041bf82db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f0041c2a311 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007f004c4686db in start_thread (arg=0x7effeeffd700) at pthread_create.c:463
#16 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7effef7fe700 (LWP 11724)):
#0  0x00007f004c46eed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7effef7fd700, expected=0, futex_word=0x7effef7fd8e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f004c46eed9 in __pthread_cond_wait_common (abstime=0x7effef7fd7a0, mutex=0x7effef7fd898, cond=0x7effef7fd8c0) at pthread_cond_wait.c:533
#2  0x00007f004c46eed9 in __pthread_cond_timedwait (cond=0x7effef7fd8c0, mutex=0x7effef7fd898, abstime=0x7effef7fd7a0) at pthread_cond_wait.c:667
#3  0x00007f0041c57b17 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0041c5846a in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0041bd6a80 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0041bf82db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0041c2a311 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f004c4686db in start_thread (arg=0x7effef7fe700) at pthread_create.c:463
#10 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7effeffff700 (LWP 11723)):
#0  0x00007f004c46eed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7effefffe700, expected=0, futex_word=0x7effefffe8e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f004c46eed9 in __pthread_cond_wait_common (abstime=0x7effefffe7a0, mutex=0x7effefffe898, cond=0x7effefffe8c0) at pthread_cond_wait.c:533
#2  0x00007f004c46eed9 in __pthread_cond_timedwait (cond=0x7effefffe8c0, mutex=0x7effefffe898, abstime=0x7effefffe7a0) at pthread_cond_wait.c:667
#3  0x00007f0041c57b17 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0041c5846a in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0041bd6a80 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0041bf82db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0041c2a311 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f004c4686db in start_thread (arg=0x7effeffff700) at pthread_create.c:463
#10 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7efff8ff9700 (LWP 11722)):
#0  0x00007f004c46e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5582cf059018) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f004c46e9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5582cf058f58, cond=0x5582cf058ff0) at pthread_cond_wait.c:502
#2  0x00007f004c46e9f3 in __pthread_cond_wait (cond=0x5582cf058ff0, mutex=0x5582cf058f58) at pthread_cond_wait.c:655
#3  0x00007f0041c57a49 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0042510178 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0041c2b7df in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f004c4686db in start_thread (arg=0x7efff8ff9700) at pthread_create.c:463
#8  0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7efff97fa700 (LWP 11721)):
#0  0x00007f004c46e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7efff97f9908) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f004c46e9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7efff97f98b8, cond=0x7efff97f98e0) at pthread_cond_wait.c:502
#2  0x00007f004c46e9f3 in __pthread_cond_wait (cond=0x7efff97f98e0, mutex=0x7efff97f98b8) at pthread_cond_wait.c:655
#3  0x00007f0041c57a49 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0041c58478 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0041c5850f in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0041c18fc8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0041c1b7f6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0041c1baf4 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f004c4686db in start_thread (arg=0x7efff97fa700) at pthread_create.c:463
#11 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7efff9ffb700 (LWP 11720)):
#0  0x00007f0050b7f6ac in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f0050b81474 in ___fprintf_chk (fp=0x7f0050e3c8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7f00392936a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f003927b9ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f003927bb44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f003927d46c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f0039273114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f0041c5dc79 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0041bf82db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f00415bf514 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0041c2a468 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f004c4686db in start_thread (arg=0x7efff9ffb700) at pthread_create.c:463
#12 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7efffa7fc700 (LWP 11719)):
#0  0x00007f004c46eed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7efffa7fb710, expected=0, futex_word=0x7efffa7fb8f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f004c46eed9 in __pthread_cond_wait_common (abstime=0x7efffa7fb7b0, mutex=0x7efffa7fb8a8, cond=0x7efffa7fb8d0) at pthread_cond_wait.c:533
#2  0x00007f004c46eed9 in __pthread_cond_timedwait (cond=0x7efffa7fb8d0, mutex=0x7efffa7fb8a8, abstime=0x7efffa7fb7b0) at pthread_cond_wait.c:667
#3  0x00007f0041c57b17 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0041c5846a in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0041c58552 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0041c18fb1 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0041c1b7f6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0041c1bab4 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f004c4686db in start_thread (arg=0x7efffa7fc700) at pthread_create.c:463
#11 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7efffaffd700 (LWP 11718)):
#0  0x00007f004c46eed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7efffaffc710, expected=0, futex_word=0x7efffaffc8f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f004c46eed9 in __pthread_cond_wait_common (abstime=0x7efffaffc7b0, mutex=0x7efffaffc8a8, cond=0x7efffaffc8d0) at pthread_cond_wait.c:533
#2  0x00007f004c46eed9 in __pthread_cond_timedwait (cond=0x7efffaffc8d0, mutex=0x7efffaffc8a8, abstime=0x7efffaffc7b0) at pthread_cond_wait.c:667
#3  0x00007f0041c57b17 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0041c5846a in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0041c58552 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0041c18fb1 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0041c1b7f6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0041c1bab4 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f004c4686db in start_thread (arg=0x7efffaffd700) at pthread_create.c:463
#11 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7efffb7fe700 (LWP 11717)):
#0  0x00007f004c46eed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7efffb7fd710, expected=0, futex_word=0x7efffb7fd8f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f004c46eed9 in __pthread_cond_wait_common (abstime=0x7efffb7fd7b0, mutex=0x7efffb7fd8a8, cond=0x7efffb7fd8d0) at pthread_cond_wait.c:533
#2  0x00007f004c46eed9 in __pthread_cond_timedwait (cond=0x7efffb7fd8d0, mutex=0x7efffb7fd8a8, abstime=0x7efffb7fd7b0) at pthread_cond_wait.c:667
#3  0x00007f0041c57b17 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0041c5846a in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0041c58552 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0041c18fb1 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0041c1b7f6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0041c1bab4 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f004c4686db in start_thread (arg=0x7efffb7fe700) at pthread_create.c:463
#11 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7efffbfff700 (LWP 11716)):
#0  0x00007f004c46eed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7efffbffe710, expected=0, futex_word=0x7efffbffe8f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f004c46eed9 in __pthread_cond_wait_common (abstime=0x7efffbffe7b0, mutex=0x7efffbffe8a8, cond=0x7efffbffe8d0) at pthread_cond_wait.c:533
#2  0x00007f004c46eed9 in __pthread_cond_timedwait (cond=0x7efffbffe8d0, mutex=0x7efffbffe8a8, abstime=0x7efffbffe7b0) at pthread_cond_wait.c:667
#3  0x00007f0041c57b17 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0041c5846a in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f0041c58552 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f0041c18fb1 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0041c1b7f6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0041c1bab4 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f004c4686db in start_thread (arg=0x7efffbfff700) at pthread_create.c:463
#11 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f0008de3700 (LWP 11715)):
#0  0x00007f0050b7f6ac in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f0050b81474 in ___fprintf_chk (fp=0x7f0050e3c8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7f00392936a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f003927b9ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f003927bb44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f003927d46c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f0039273114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f0041c5dc79 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0041bf82db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0041c1f544 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0041c2a468 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f004c4686db in start_thread (arg=0x7f0008de3700) at pthread_create.c:463
#12 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f0009de5700 (LWP 11713)):
#0  0x00007f0050b7f6ac in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f0050b81474 in ___fprintf_chk (fp=0x7f0050e3c8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7f00392936a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f003927b9ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f003927bb44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f003927d46c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f0039273114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f0041c5dc79 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f0041bf82db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f0041c2a311 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0041c5a561 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f004c4686db in start_thread (arg=0x7f0009de5700) at pthread_create.c:463
#11 0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f001094e700 (LWP 11706)):
#0  0x00007f0050b63bf9 in __GI___poll (fds=0x7efef4004c80, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f004a59b5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f004a59b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f00516bedcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f005166003a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f00514874ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f004fdaf015 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f0051488c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f004c4686db in start_thread (arg=0x7f001094e700) at pthread_create.c:463
#9  0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f001a2c6700 (LWP 11705)):
#0  0x00007f004c46e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5582cea49ccc) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f004c46e9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5582cea49c78, cond=0x5582cea49ca0) at pthread_cond_wait.c:502
#2  0x00007f004c46e9f3 in __pthread_cond_wait (cond=0x5582cea49ca0, mutex=0x5582cea49c78) at pthread_cond_wait.c:655
#3  0x00007f001b59923b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f001b598f67 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f004c4686db in start_thread (arg=0x7f001a2c6700) at pthread_create.c:463
#6  0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f0024498700 (LWP 11704)):
#0  0x00007f0050b63bf9 in __GI___poll (fds=0x7f00244978e8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f004ca97747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f004ca9936a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f00265e7578 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f0051488c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f004c4686db in start_thread (arg=0x7f0024498700) at pthread_create.c:463
#6  0x00007f0050b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f005423fbc0 (LWP 11702)):
[KCrash Handler]
#6  0x00007f00184646e1 in Kvantum::Style::advanceProgressbar() () at /usr/lib/x86_64-linux-gnu/qt5/plugins/styles/libkvantum.so
#7  0x00007f005169198f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f005169e757 in QTimer::timeout(QTimer::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f005169eab8 in QTimer::timerEvent(QTimerEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f005169239b in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f005245d65c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f0052464b90 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007f0051661d18 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f00516be219 in QTimerInfoList::activateTimers() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f00516be9e1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f004a59b417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f004a59b650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f004a59b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f00516bedaf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f005166003a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f0051669170 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00005582ccaf0465 in  ()
#23 0x00007f0050a70b97 in __libc_start_main (main=0x5582ccaef650, argc=1, argv=0x7ffc8102f0f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc8102f0e8) at ../csu/libc-start.c:310
#24 0x00005582ccaf0a8a in  ()

The reporter indicates this bug may be a duplicate of or related to bug 377892.

Possible duplicates by query: bug 391883, bug 387837.

Reported using DrKonqi
Comment 1 m.orly97 2019-10-01 17:39:14 UTC 
It's related to #411093:
when I do AppArmor teardown and restart manually Akonadi works.
Comment 2 Christoph Feck 2020-12-21 23:13:32 UTC 
Crashes in Kvantum style, please report to Kvantum developers.