Bug 369514

Summary: KMail crash on starting (nouveau-related)
Product: [Applications] kmail2 Reporter: René Krell <renda.krell>
Component: generalAssignee: kdepim bugs <kdepim-bugs>
Status: RESOLVED DUPLICATE    
Severity: crash CC: bingmybong, kde.org
Priority: NOR Keywords: drkonqi
Version: unspecified   
Target Milestone: ---   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description René Krell 2016-09-29 07:48:37 UTC 
Application: kmail (5.3.0 (QtWebEngine))

Qt Version: 5.6.1
Frameworks Version: 5.26.0
Operating System: Linux 4.7.4-2-default x86_64
Distribution: "openSUSE Tumbleweed"

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

Using OpenSUSE Tumbleweed 20160927 and the Nouveau driver (kernel 4.7.4, xf86-video-nouveau-1.0.13), KMail crashes everytime I try to start it. The KDE Plasma desktop and Chromium run without any flaw.

The crash can be reproduced every time.

-- Backtrace:
Application: KMail (kmail), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff6d0b6a940 (LWP 12021))]

Thread 42 (Thread 0x7ff52effb700 (LWP 12105)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6b9c95d49 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007ff6b9c96460 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007ff6b9c96630 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 41 (Thread 0x7ff52f7fc700 (LWP 12103)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6be711353 in JSC::GCThread::gcThreadMain() () at heap/GCThread.cpp:81
#2  0x00007ff6be711353 in JSC::GCThread::gcThreadMain() () at heap/GCThread.cpp:99
#3  0x00007ff6bea47971 in wtfThreadEntryPoint() () at wtf/ThreadingPthreads.cpp:195
#4  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#5  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 40 (Thread 0x7ff52fffd700 (LWP 12102)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6be711353 in JSC::GCThread::gcThreadMain() () at heap/GCThread.cpp:81
#2  0x00007ff6be711353 in JSC::GCThread::gcThreadMain() () at heap/GCThread.cpp:99
#3  0x00007ff6bea47971 in wtfThreadEntryPoint() () at wtf/ThreadingPthreads.cpp:195
#4  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#5  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 39 (Thread 0x7ff5f4fca700 (LWP 12101)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6be711353 in JSC::GCThread::gcThreadMain() () at heap/GCThread.cpp:81
#2  0x00007ff6be711353 in JSC::GCThread::gcThreadMain() () at heap/GCThread.cpp:99
#3  0x00007ff6bea47971 in wtfThreadEntryPoint() () at wtf/ThreadingPthreads.cpp:195
#4  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#5  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 38 (Thread 0x7ff5f57cb700 (LWP 12100)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6be711353 in JSC::GCThread::gcThreadMain() () at heap/GCThread.cpp:81
#2  0x00007ff6be711353 in JSC::GCThread::gcThreadMain() () at heap/GCThread.cpp:99
#3  0x00007ff6bea47971 in wtfThreadEntryPoint() () at wtf/ThreadingPthreads.cpp:195
#4  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#5  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 37 (Thread 0x7ff5f5fcc700 (LWP 12099)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6be711353 in JSC::GCThread::gcThreadMain() () at heap/GCThread.cpp:81
#2  0x00007ff6be711353 in JSC::GCThread::gcThreadMain() () at heap/GCThread.cpp:99
#3  0x00007ff6bea47971 in wtfThreadEntryPoint() () at wtf/ThreadingPthreads.cpp:195
#4  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#5  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 36 (Thread 0x7ff5f67cd700 (LWP 12098)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6be711353 in JSC::GCThread::gcThreadMain() () at heap/GCThread.cpp:81
#2  0x00007ff6be711353 in JSC::GCThread::gcThreadMain() () at heap/GCThread.cpp:99
#3  0x00007ff6bea47971 in wtfThreadEntryPoint() () at wtf/ThreadingPthreads.cpp:195
#4  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#5  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 35 (Thread 0x7ff5f6fce700 (LWP 12097)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6be710201 in JSC::BlockAllocator::blockFreeingThreadMain() () at heap/BlockAllocator.cpp:139
#2  0x00007ff6bea47971 in wtfThreadEntryPoint() () at wtf/ThreadingPthreads.cpp:195
#3  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#4  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 34 (Thread 0x7ff5f7be0700 (LWP 12096)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6bea16c4b in WTF::TCMalloc_PageHeap::scavengerThread() () at wtf/FastMalloc.cpp:2821
#2  0x00007ff6bea16c89 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () at wtf/FastMalloc.cpp:1989
#3  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#4  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 33 (Thread 0x7ff600e48700 (LWP 12095)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6b47587e4 in QTWTF::TCMalloc_PageHeap::scavengerThread() (this=0x7ff6b4a41ec0 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007ff6b4758829 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#4  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 32 (Thread 0x7ff6020b4700 (LWP 12083)):
#0  0x00007ff6cd9166ed in poll () at /lib64/libc.so.6
#1  0x00007ff6c2f83876 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff6c2f8398c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff6ce455aab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff5f00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007ff6ce3fd6fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff6020b3c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007ff6ce2233c3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007ff6ce2282e8 in QThreadPrivate::start(void*) (arg=0x2e4b2e0) at thread/qthread_unix.cpp:341
#7  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#8  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 31 (Thread 0x7ff60389b700 (LWP 12080)):
#0  0x00007ff6cd9166ed in poll () at /lib64/libc.so.6
#1  0x00007ff6c2f83876 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff6c2f8398c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff6ce455aab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff5f8000940, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007ff6ce3fd6fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff60389ac80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007ff6ce2233c3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007ff6ce2282e8 in QThreadPrivate::start(void*) (arg=0x160f150) at thread/qthread_unix.cpp:341
#7  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#8  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 30 (Thread 0x7ff611d40700 (LWP 12073)):
#0  0x00007ff6c2fc8e89 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007ff6c2f82d85 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff6c2f8379b in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff6c2f8398c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007ff6ce455aab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff5fc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007ff6ce3fd6fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff611d3fc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ff6ce2233c3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007ff6ce2282e8 in QThreadPrivate::start(void*) (arg=0x11fd060) at thread/qthread_unix.cpp:341
#8  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 29 (Thread 0x7ff612541700 (LWP 12066)):
#0  0x00007ff6cd9166ed in poll () at /lib64/libc.so.6
#1  0x00007ff6c2f83876 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff6c2f8398c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff6ce455aab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff6080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007ff6ce3fd6fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff612540c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007ff6ce2233c3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007ff6ce2282e8 in QThreadPrivate::start(void*) (arg=0x107bec0) at thread/qthread_unix.cpp:341
#7  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#8  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 28 (Thread 0x7ff629ffb700 (LWP 12059)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6b9aee850 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007ff6b9adb10c in  () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007ff6b9adb5b7 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007ff6b9ad7e35 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007ff6bb1db937 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007ff6bb1dbb6e in  () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007ff6bb1dbca9 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007ff6b9c7f0ba in  () at /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007ff6b9c6aa55 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007ff6b9c96ae6 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#13 0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 27 (Thread 0x7ff62a7fc700 (LWP 12058)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6b9c95d49 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007ff6b9c96460 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007ff6b9c96630 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 26 (Thread 0x7ff62affd700 (LWP 12057)):
#0  0x00007ff6aa0b1eee in  () at /usr/lib64/pulseaudio/libpulsecommon-9.0.so
#1  0x00007ff6aa0b276a in  () at /usr/lib64/pulseaudio/libpulsecommon-9.0.so
#2  0x00007ff6b12de63c in pa_mainloop_dispatch () at /usr/lib64/libpulse.so.0
#3  0x00007ff6b12dea3c in pa_mainloop_iterate () at /usr/lib64/libpulse.so.0
#4  0x00007ff6b12deae0 in pa_mainloop_run () at /usr/lib64/libpulse.so.0
#5  0x00007ff6b12ecb09 in  () at /usr/lib64/libpulse.so.0
#6  0x00007ff6aa0c2108 in  () at /usr/lib64/pulseaudio/libpulsecommon-9.0.so
#7  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#8  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 25 (Thread 0x7ff62b7fe700 (LWP 12056)):
#0  0x00007ff6cd92bbcb in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007ff6cd92d684 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007ff6adc4f4de in  () at /usr/lib64/libevent-2.0.so.5
#3  0x00007ff6adc4f6d4 in event_warn () at /usr/lib64/libevent-2.0.so.5
#4  0x00007ff6adc53e58 in  () at /usr/lib64/libevent-2.0.so.5
#5  0x00007ff6adc3ddfa in event_base_loop () at /usr/lib64/libevent-2.0.so.5
#6  0x00007ff6b9c48b6e in  () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007ff6b9c7f0ba in  () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007ff6b9c6aa55 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007ff6b9c96ae6 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#12 0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 24 (Thread 0x7ff62bfff700 (LWP 12055)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6b9c8baf5 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007ff6b9c8bbc4 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007ff6b9c6e473 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007ff6b9c7f0ba in  () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007ff6b9c6aa55 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007ff6b9c96ae6 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 23 (Thread 0x7ff648ff9700 (LWP 12054)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6b9c8baf5 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007ff6b9c8bbc4 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007ff6b9c6e473 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007ff6b9c7f0ba in  () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007ff6b9c6aa55 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007ff6b9c96ae6 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 22 (Thread 0x7ff6497fa700 (LWP 12053)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6b94caf99 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007ff6b9c96630 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#5  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 21 (Thread 0x7ff649ffb700 (LWP 12052)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6b9c8baf5 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007ff6b9c8bbc4 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007ff6b9c6e473 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007ff6b9c7f0ba in  () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007ff6b9c6aa55 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007ff6b9c96ae6 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7ff64a7fc700 (LWP 12051)):
#0  0x00007ff6cd92bbcb in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007ff6cd92d684 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007ff6adc4f4de in  () at /usr/lib64/libevent-2.0.so.5
#3  0x00007ff6adc4f6d4 in event_warn () at /usr/lib64/libevent-2.0.so.5
#4  0x00007ff6adc53e58 in  () at /usr/lib64/libevent-2.0.so.5
#5  0x00007ff6adc3ddfa in event_base_loop () at /usr/lib64/libevent-2.0.so.5
#6  0x00007ff6b9c48b6e in  () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007ff6b9c7f0ba in  () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007ff6b9c6aa55 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007ff6b9145ab8 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007ff6b9145c1b in  () at /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007ff6b9c96b68 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#13 0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#14 0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7ff64affd700 (LWP 12050)):
#0  0x00007ff6cd92bbcb in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007ff6cd92d684 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007ff6adc4f4de in  () at /usr/lib64/libevent-2.0.so.5
#3  0x00007ff6adc4f6d4 in event_warn () at /usr/lib64/libevent-2.0.so.5
#4  0x00007ff6adc53e58 in  () at /usr/lib64/libevent-2.0.so.5
#5  0x00007ff6adc3ddfa in event_base_loop () at /usr/lib64/libevent-2.0.so.5
#6  0x00007ff6b9c48c02 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007ff6b9c7f0ba in  () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007ff6b9c6aa55 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007ff6b9145a08 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007ff6b9145c7b in  () at /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007ff6b9c96b68 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#13 0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#14 0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7ff64b7fe700 (LWP 12049)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6b9c8baf5 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007ff6b9c8bbc4 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007ff6b9c6e473 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007ff6b9c7f0ba in  () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007ff6b9c6aa55 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007ff6b9145958 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007ff6b9145c6b in  () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007ff6b9c96b68 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#11 0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7ff64bfff700 (LWP 12048)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6b9c8baf5 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007ff6b9c8bbc4 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007ff6b9c6e473 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007ff6b9c7f0ba in  () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007ff6b9c6aa55 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007ff6b91458a8 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007ff6b9145c5b in  () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007ff6b9c96b68 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#11 0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7ff66cff9700 (LWP 12047)):
#0  0x00007ff6cd92bbcb in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007ff6cd92d684 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007ff6adc4f4de in  () at /usr/lib64/libevent-2.0.so.5
#3  0x00007ff6adc4f6d4 in event_warn () at /usr/lib64/libevent-2.0.so.5
#4  0x00007ff6adc53e58 in  () at /usr/lib64/libevent-2.0.so.5
#5  0x00007ff6adc3ddfa in event_base_loop () at /usr/lib64/libevent-2.0.so.5
#6  0x00007ff6b9c48c02 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007ff6b9c7f0ba in  () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007ff6b9c6aa55 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007ff6b91457f8 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007ff6b9145c4b in  () at /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007ff6b9c96b68 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#13 0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#14 0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7ff66d7fa700 (LWP 12046)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6b9c8baf5 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007ff6b9c8bbc4 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007ff6b9c6e473 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007ff6b9c7f0ba in  () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007ff6b9c6aa55 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007ff6b9145748 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007ff6b9145c3b in  () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007ff6b9c96b68 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#11 0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7ff66dffb700 (LWP 12045)):
#0  0x00007ff6c37af4b8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6b9c8b2e2 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007ff6b9c997d9 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007ff6b9c99d13 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7ff66e7fc700 (LWP 12044)):
#0  0x00007ff6c37af4b8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6b9c8b2e2 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007ff6b9c997d9 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007ff6b9c99d13 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7ff66effd700 (LWP 12043)):
#0  0x00007ff6c37af10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff6b9c8baf5 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007ff6b9c8bbc4 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007ff6b9c6e473 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007ff6b9c7f0ba in  () at /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007ff6b9c6aa55 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007ff6b9c96ae6 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7ff66f7fe700 (LWP 12042)):
#0  0x00007ff6cd9127bd in write () at /lib64/libc.so.6
#1  0x00007ff6cd8a9da7 in _IO_new_file_write () at /lib64/libc.so.6
#2  0x00007ff6cd8a90f2 in new_do_write () at /lib64/libc.so.6
#3  0x00007ff6cd8aa4fe in __GI__IO_file_xsputn () at /lib64/libc.so.6
#4  0x00007ff6cd881255 in buffered_vfprintf () at /lib64/libc.so.6
#5  0x00007ff6cd87e4d5 in vfprintf () at /lib64/libc.so.6
#6  0x00007ff6cd92d6d9 in __fprintf_chk () at /lib64/libc.so.6
#7  0x00007ff6adc4f4de in  () at /usr/lib64/libevent-2.0.so.5
#8  0x00007ff6adc4f6d4 in event_warn () at /usr/lib64/libevent-2.0.so.5
#9  0x00007ff6adc53e58 in  () at /usr/lib64/libevent-2.0.so.5
#10 0x00007ff6adc3ddfa in event_base_loop () at /usr/lib64/libevent-2.0.so.5
#11 0x00007ff6b9c48b6e in  () at /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007ff6b9c7f0ba in  () at /usr/lib64/libQt5WebEngineCore.so.5
#13 0x00007ff6b9c6aa55 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#14 0x00007ff6b9c96ae6 in  () at /usr/lib64/libQt5WebEngineCore.so.5
#15 0x00007ff6b9c9323d in  () at /usr/lib64/libQt5WebEngineCore.so.5
#16 0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#17 0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7ff679c13700 (LWP 12035)):
#0  0x00007ff6c2f808a0 in  () at /usr/lib64/libglib-2.0.so.0
#1  0x00007ff6c2f831a4 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff6c2f83814 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff6c2f8398c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007ff6ce455aab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff6680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007ff6ce3fd6fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff679c12c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ff6ce2233c3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007ff6ce2282e8 in QThreadPrivate::start(void*) (arg=0x11eca60) at thread/qthread_unix.cpp:341
#8  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7ff67a414700 (LWP 12033)):
#0  0x00007ff6c2f83802 in  () at /usr/lib64/libglib-2.0.so.0
#1  0x00007ff6c2f8398c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff6ce455aab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff6700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#3  0x00007ff6ce3fd6fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff67a413c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007ff6ce2233c3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#5  0x00007ff6ce2282e8 in QThreadPrivate::start(void*) (arg=0x10ed210) at thread/qthread_unix.cpp:341
#6  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#7  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7ff6875e0700 (LWP 12031)):
#0  0x00007ff6c2fc8ea4 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007ff6c2f82d6c in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff6c2f8379b in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff6c2f8398c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007ff6ce455aab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff6740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007ff6ce3fd6fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff6875dfc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ff6ce2233c3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007ff6ce2282e8 in QThreadPrivate::start(void*) (arg=0xe149b0) at thread/qthread_unix.cpp:341
#8  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7ff687fff700 (LWP 12029)):
#0  0x00007ff6ce4552a0 in postEventSourceCheck(GSource*) (this=<optimized out>) at ../../src/corelib/thread/qmutex.h:159
#1  0x00007ff6ce4552a0 in postEventSourceCheck(GSource*) (this=<optimized out>) at ../../src/corelib/thread/qmutex.h:138
#2  0x00007ff6ce4552a0 in postEventSourceCheck(GSource*) (this=<optimized out>, __in_chrg=<optimized out>) at ../../src/corelib/thread/qmutex.h:132
#3  0x00007ff6ce4552a0 in postEventSourceCheck(GSource*) (this=0xe64330) at ../../src/corelib/thread/qthread_p.h:246
#4  0x00007ff6ce4552a0 in postEventSourceCheck(GSource*) (timeout=<synthetic pointer>, s=0x7ff67c0012d0) at kernel/qeventdispatcher_glib.cpp:253
#5  0x00007ff6ce4552a0 in postEventSourceCheck(GSource*) (source=0x7ff67c0012d0) at kernel/qeventdispatcher_glib.cpp:263
#6  0x00007ff6c2f83269 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#7  0x00007ff6c2f83814 in  () at /usr/lib64/libglib-2.0.so.0
#8  0x00007ff6c2f8398c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#9  0x00007ff6ce455aab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff67c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#10 0x00007ff6ce3fd6fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff687ffec80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#11 0x00007ff6ce2233c3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#12 0x00007ff6ce2282e8 in QThreadPrivate::start(void*) (arg=0xd98c30) at thread/qthread_unix.cpp:341
#13 0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#14 0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7ff694952700 (LWP 12027)):
#0  0x00007ff6c2fc8e89 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007ff6c2f82d85 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff6c2f8379b in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff6c2f8398c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007ff6ce455aab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff6800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007ff6ce3fd6fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff694951c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ff6ce2233c3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007ff6ce2282e8 in QThreadPrivate::start(void*) (arg=0xdfb5e0) at thread/qthread_unix.cpp:341
#8  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7ff695153700 (LWP 12025)):
#0  0x00007ff6cd91275d in read () at /lib64/libc.so.6
#1  0x00007ff6c2fc7ae0 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff6c2f83325 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff6c2f83814 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007ff6c2f8398c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007ff6ce455aab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff68c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#6  0x00007ff6ce3fd6fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff695152c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007ff6ce2233c3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#8  0x00007ff6ce2282e8 in QThreadPrivate::start(void*) (arg=0xe672a0) at thread/qthread_unix.cpp:341
#9  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#10 0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7ff695fe5700 (LWP 12024)):
#0  0x00007ff6ce453d2f in QTimerInfoList::timerWait(timespec&) (t=<synthetic pointer>) at ../../src/corelib/kernel/qcore_unix_p.h:85
#1  0x00007ff6ce453d2f in QTimerInfoList::timerWait(timespec&) (t2=<synthetic pointer>, t1=...) at ../../src/corelib/kernel/qcore_unix_p.h:115
#2  0x00007ff6ce453d2f in QTimerInfoList::timerWait(timespec&) (this=0x7ff688002cd0, tm=...) at kernel/qtimerinfo_unix.cpp:398
#3  0x00007ff6ce454f9e in timerSourcePrepare(GSource*, gint*) (timeout=0x7ff695fe4ab4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:126
#4  0x00007ff6ce454f9e in timerSourcePrepare(GSource*, gint*) (source=<optimized out>, timeout=0x7ff695fe4ab4) at kernel/qeventdispatcher_glib.cpp:159
#5  0x00007ff6c2f82d79 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#6  0x00007ff6c2f8379b in  () at /usr/lib64/libglib-2.0.so.0
#7  0x00007ff6c2f8398c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#8  0x00007ff6ce455aab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff6880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#9  0x00007ff6ce3fd6fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff695fe4c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#10 0x00007ff6ce2233c3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#11 0x00007ff6ce2282e8 in QThreadPrivate::start(void*) (arg=0xdcb090) at thread/qthread_unix.cpp:341
#12 0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#13 0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7ff6971f6700 (LWP 12023)):
#0  0x00007ff6c2fc8e89 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007ff6c2f82d85 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff6c2f8379b in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff6c2f8398c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007ff6ce455aab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff6900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007ff6ce3fd6fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff6971f5c50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ff6ce2233c3 in QThread::exec() (this=this@entry=0x7ff6ccafbd20 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:500
#7  0x00007ff6cc888985 in QDBusConnectionManager::run() (this=0x7ff6ccafbd20 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:189
#8  0x00007ff6ce2282e8 in QThreadPrivate::start(void*) (arg=0x7ff6ccafbd20 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:341
#9  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#10 0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7ff6a4789700 (LWP 12022)):
#0  0x00007ff6cd9166ed in poll () at /lib64/libc.so.6
#1  0x00007ff6c0bc03f0 in  () at /usr/lib64/libxcb.so.1
#2  0x00007ff6c0bc2189 in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007ff6a62727a9 in QXcbEventReader::run() (this=0xc00b10) at qxcbconnection.cpp:1325
#4  0x00007ff6ce2282e8 in QThreadPrivate::start(void*) (arg=0xc00b10) at thread/qthread_unix.cpp:341
#5  0x00007ff6c37a9454 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff6cd91f3ff in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7ff6d0b6a940 (LWP 12021)):
[KCrash Handler]
#6  0x00007ff6cd86a5ef in raise () at /lib64/libc.so.6
#7  0x00007ff6cd86b9ea in abort () at /lib64/libc.so.6
#8  0x00007ff6cd8a8190 in __libc_message () at /lib64/libc.so.6
#9  0x00007ff6cd8ae546 in malloc_printerr () at /lib64/libc.so.6
#10 0x00007ff6cd8aed3e in _int_free () at /lib64/libc.so.6
#11 0x00007ff6a2bafe9f in nouveau_fence_trigger_work (fence=fence@entry=0x2ed01b0) at nouveau_fence.c:58
#12 0x00007ff6a2bb00de in nouveau_fence_update (screen=screen@entry=0xcc0980, flushed=flushed@entry=false) at nouveau_fence.c:132
#13 0x00007ff6a2bb0403 in nouveau_fence_wait (fence=0x7ff62415f980, debug=0x0) at nouveau_fence.c:223
#14 0x00007ff6a2921d1b in st_finish (st=st@entry=0x1586210) at state_tracker/st_cb_flush.c:101
#15 0x00007ff6a2921d60 in st_glFinish (ctx=<optimized out>) at state_tracker/st_cb_flush.c:136
#16 0x00007ff6cf1ab4a9 in QOpenGLWidgetPrivate::beginCompose() (this=0x1142940) at kernel/qopenglwidget.cpp:721
#17 0x00007ff6cf1794c1 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) (w=<optimized out>, end=end@entry=false) at kernel/qwidget.cpp:12180
#18 0x00007ff6cf179487 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) (w=<optimized out>, end=end@entry=false) at kernel/qwidget.cpp:12184
#19 0x00007ff6cf179487 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) (w=<optimized out>, end=end@entry=false) at kernel/qwidget.cpp:12184
#20 0x00007ff6cf179487 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) (w=<optimized out>, end=end@entry=false) at kernel/qwidget.cpp:12184
#21 0x00007ff6cf179487 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) (w=<optimized out>, end=end@entry=false) at kernel/qwidget.cpp:12184
#22 0x00007ff6cf179487 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) (w=<optimized out>, end=end@entry=false) at kernel/qwidget.cpp:12184
#23 0x00007ff6cf179487 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) (w=<optimized out>, end=end@entry=false) at kernel/qwidget.cpp:12184
#24 0x00007ff6cf179487 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) (w=<optimized out>, end=end@entry=false) at kernel/qwidget.cpp:12184
#25 0x00007ff6cf179487 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) (w=<optimized out>, end=end@entry=false) at kernel/qwidget.cpp:12184
#26 0x00007ff6cf179487 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) (w=<optimized out>, end=end@entry=false) at kernel/qwidget.cpp:12184
#27 0x00007ff6cf179487 in QWidgetPrivate::sendComposeStatus(QWidget*, bool) (w=<optimized out>, end=end@entry=false) at kernel/qwidget.cpp:12184
#28 0x00007ff6cf150782 in QWidgetBackingStore::qt_flush(QWidget*, QRegion const&, QBackingStore*, QWidget*, QPoint const&, QPlatformTextureList*, QWidgetBackingStore*) (widget=0xe924a0, region=..., backingStore=0x11e2330, tlw=0xe924a0, tlwOffset=..., widgetTextures=0xc00af0, widgetBackingStore=0x12266f0) at kernel/qwidgetbackingstore.cpp:108
#29 0x00007ff6cf1517e5 in QWidgetBackingStore::flush(QWidget*) (this=this@entry=0x12266f0, widget=widget@entry=0x0) at kernel/qwidgetbackingstore.cpp:1387
#30 0x00007ff6cf1534e2 in QWidgetBackingStore::doSync() (this=this@entry=0x12266f0) at kernel/qwidgetbackingstore.cpp:1279
#31 0x00007ff6cf153fe9 in QWidgetBackingStore::sync() (this=0x12266f0) at kernel/qwidgetbackingstore.cpp:1145
#32 0x00007ff6cf17395f in QWidgetPrivate::syncBackingStore() (this=0xe9a3d0) at kernel/qwidget.cpp:1942
#33 0x00007ff6cf18b678 in QWidget::event(QEvent*) (this=this@entry=0xe924a0, event=event@entry=0x239a7f0) at kernel/qwidget.cpp:9053
#34 0x00007ff6cf2a4b5b in QMainWindow::event(QEvent*) (this=this@entry=0xe924a0, event=event@entry=0x239a7f0) at widgets/qmainwindow.cpp:1543
#35 0x00007ff6cd3436a7 in KMainWindow::event(QEvent*) (this=this@entry=0xe924a0, ev=ev@entry=0x239a7f0) at /usr/src/debug/kxmlgui-5.26.0/src/kmainwindow.cpp:867
#36 0x00007ff6cd3885b5 in KXmlGuiWindow::event(QEvent*) (this=0xe924a0, ev=0x239a7f0) at /usr/src/debug/kxmlgui-5.26.0/src/kxmlguiwindow.cpp:118
#37 0x00007ff6cf145acc in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0xe924a0, e=0x239a7f0) at kernel/qapplication.cpp:3804
#38 0x00007ff6cf14af6f in QApplication::notify(QObject*, QEvent*) (this=0x7fffcd1f3eb0, receiver=0xe924a0, e=0x239a7f0) at kernel/qapplication.cpp:3561
#39 0x00007ff6ce3ff9b0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0xe924a0, event=event@entry=0x239a7f0) at kernel/qcoreapplication.cpp:1015
#40 0x00007ff6ce40193c in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (event=0x239a7f0, receiver=<optimized out>) at kernel/qcoreapplication.h:225
#41 0x00007ff6ce40193c in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0xbd8a40) at kernel/qcoreapplication.cpp:1650
#42 0x00007ff6ce401df8 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1508
#43 0x00007ff6ce455683 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0xc51720) at kernel/qeventdispatcher_glib.cpp:270
#44 0x00007ff6c2f83677 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#45 0x00007ff6c2f838e0 in  () at /usr/lib64/libglib-2.0.so.0
#46 0x00007ff6c2f8398c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#47 0x00007ff6ce455a8f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0xc3d8a0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#48 0x00007ff6ce3fd6fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fffcd1f3840, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#49 0x00007ff6ce405f0c in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1285
#50 0x00007ff6ce94eb5c in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1607
#51 0x00007ff6cf142b05 in QApplication::exec() () at kernel/qapplication.cpp:2979
#52 0x0000000000403cbf in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kdepim-16.08.1/kmail/src/main.cpp:161

Reported using DrKonqi
Comment 1 BingMyBong 2016-09-29 10:45:40 UTC 
From reading various bugs, there seems to be a conflict between nouveau and 
qtwebengine, related to threading and it points to nouveau being not so good 
at it.
Maybe this should be logged against qtwebengine and nouveau as well
Comment 2 René Krell 2016-10-04 07:56:58 UTC 
(In reply to BingMyBong from comment #1)
> Maybe this should be logged against qtwebengine and nouveau as well

Did report it to nouveau: https://bugs.freedesktop.org/show_bug.cgi?id=98039
Comment 3 BingMyBong 2016-10-04 08:10:31 UTC 
(In reply to René Krell from comment #2)
> (In reply to BingMyBong from comment #1)
> > Maybe this should be logged against qtwebengine and nouveau as well
> 
> Did report it to nouveau: https://bugs.freedesktop.org/show_bug.cgi?id=98039

I haven't as yet, i didn't find where to do it, i was only signed upto kde.bogs and bugzilla.opensuse but now I'll add some comments to your bug once i've registered.
Comment 4 Christoph Feck 2016-11-02 16:05:19 UTC 

*** This bug has been marked as a duplicate of bug 368434 ***