372501 2016-11-15 11:03:11 +0000 Plasmashell crashes when disconnecting display during suspend-to-RAM 2016-11-24 11:22:27 +0000 1 1 4 Plasma plasmashell generic-multiscreen 5.8.3 Arch Linux Linux RESOLVED DUPLICATE 371991 drkonqi NOR crash 1.0 0 jdrees aleixpol bshah kde mustaqim notmart null plasma-bugs-null 0 oldest_to_newest 1639760 0 jdrees 2016-11-15 11:03:11 +0000 Application: plasmashell (5.8.3) Qt Version: 5.7.0 Frameworks Version: 5.27.0 Operating System: Linux 4.8.6-1-ARCH x86_64 Distribution: "Arch Linux" -- Information about the crash: - What I was doing when the application crashed: Always after waking up from suspend-to-RAM, plasmashell encounters a segmentation fault. This only occurs when I disconnect my Laptop's external display during suspend. The crash can be reproduced every time. -- Backtrace: Application: Plasma (plasmashell), signal: Segmentation fault Using host libthread_db library "/usr/lib/libthread_db.so.1". [Current thread is 1 (Thread 0x7fa070eaf7c0 (LWP 16481))] Thread 19 (Thread 0x7f9f5fc99700 (LWP 19531)): #0 0x00007fa069dd010f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fa06acbbc2b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007fa06ec27395 in () at /usr/lib/libQt5Quick.so.5 #3 0x00007fa06ec27c8a in () at /usr/lib/libQt5Quick.so.5 #4 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 18 (Thread 0x7f9f7c935700 (LWP 19408)): #0 0x00007fa069dd010f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fa06acbbc2b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007fa06ec27395 in () at /usr/lib/libQt5Quick.so.5 #3 0x00007fa06ec27c8a in () at /usr/lib/libQt5Quick.so.5 #4 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 17 (Thread 0x7f9f7d566700 (LWP 19407)): #0 0x00007fa069dd010f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fa06acbbc2b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007fa06ec27395 in () at /usr/lib/libQt5Quick.so.5 #3 0x00007fa06ec27c8a in () at /usr/lib/libQt5Quick.so.5 #4 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 16 (Thread 0x7f9f7e197700 (LWP 19093)): #0 0x00007fa069dd010f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fa06acbbc2b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007fa06ec27395 in () at /usr/lib/libQt5Quick.so.5 #3 0x00007fa06ec27c8a in () at /usr/lib/libQt5Quick.so.5 #4 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 15 (Thread 0x7f9f7ee1a700 (LWP 18548)): #0 0x00007fa069dd010f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fa06acbbc2b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007fa06ec27395 in () at /usr/lib/libQt5Quick.so.5 #3 0x00007fa06ec27c8a in () at /usr/lib/libQt5Quick.so.5 #4 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 14 (Thread 0x7f9f7fc98700 (LWP 18259)): #0 0x00007fa069dd010f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fa06acbbc2b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007fa06ec27395 in () at /usr/lib/libQt5Quick.so.5 #3 0x00007fa06ec27c8a in () at /usr/lib/libQt5Quick.so.5 #4 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 13 (Thread 0x7f9f90902700 (LWP 18258)): #0 0x00007fa069dd010f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fa06acbbc2b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007fa06ec27395 in () at /usr/lib/libQt5Quick.so.5 #3 0x00007fa06ec27c8a in () at /usr/lib/libQt5Quick.so.5 #4 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 12 (Thread 0x7f9f915f3700 (LWP 18257)): #0 0x00007fa069dd010f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fa06acbbc2b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007fa06ec27395 in () at /usr/lib/libQt5Quick.so.5 #3 0x00007fa06ec27c8a in () at /usr/lib/libQt5Quick.so.5 #4 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 11 (Thread 0x7f9f91e67700 (LWP 18256)): #0 0x00007fa069dd010f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fa06acbbc2b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007fa06ec27395 in () at /usr/lib/libQt5Quick.so.5 #3 0x00007fa06ec27c8a in () at /usr/lib/libQt5Quick.so.5 #4 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 10 (Thread 0x7f9f933fe700 (LWP 16498)): #0 0x00007fa069dd010f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fa06acbbc2b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007fa06ec27395 in () at /usr/lib/libQt5Quick.so.5 #3 0x00007fa06ec27c8a in () at /usr/lib/libQt5Quick.so.5 #4 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 9 (Thread 0x7f9f9a8ab700 (LWP 16496)): #0 0x00007fa06a5c748d in poll () at /usr/lib/libc.so.6 #1 0x00007fa065889786 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fa06588989c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007fa06aee972b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007fa06ae9323a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #5 0x00007fa06acb60f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #6 0x00007f9f9cdd70a7 in KCupsConnection::run() () at /usr/lib/libkcupslib.so #7 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #8 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #9 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 8 (Thread 0x7f9fb3fff700 (LWP 16492)): #0 0x00007fa069dd010f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fa06acbbc2b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007fa06ec27395 in () at /usr/lib/libQt5Quick.so.5 #3 0x00007fa06ec27c8a in () at /usr/lib/libQt5Quick.so.5 #4 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 7 (Thread 0x7f9fb9532700 (LWP 16490)): #0 0x00007fa06a5c34ed in read () at /usr/lib/libc.so.6 #1 0x00007fa0658cda10 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fa065889235 in g_main_context_check () at /usr/lib/libglib-2.0.so.0 #3 0x00007fa065889724 in () at /usr/lib/libglib-2.0.so.0 #4 0x00007fa06588989c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #5 0x00007fa06aee972b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #6 0x00007fa06ae9323a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #7 0x00007fa06acb60f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #8 0x00007fa06ebb8856 in () at /usr/lib/libQt5Quick.so.5 #9 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #10 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #11 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 6 (Thread 0x7fa047bdf700 (LWP 16486)): #0 0x00007fa069dd010f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fa070648ac4 in () at /usr/lib/libQt5Script.so.5 #2 0x00007fa070648b09 in () at /usr/lib/libQt5Script.so.5 #3 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 5 (Thread 0x7fa0519c8700 (LWP 16485)): #0 0x00007fa06a5c748d in poll () at /usr/lib/libc.so.6 #1 0x00007fa065889786 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fa06588989c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007fa06aee972b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007fa06ae9323a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #5 0x00007fa06acb60f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #6 0x00007fa06e0192d5 in () at /usr/lib/libQt5Qml.so.5 #7 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #8 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #9 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 4 (Thread 0x7fa0537c8700 (LWP 16484)): #0 0x00007fa06a5c748d in poll () at /usr/lib/libc.so.6 #1 0x00007fa065889786 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fa06588989c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007fa06aee972b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007fa06ae9323a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #5 0x00007fa06acb60f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #6 0x00007fa06e0192d5 in () at /usr/lib/libQt5Qml.so.5 #7 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #8 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #9 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 3 (Thread 0x7fa059299700 (LWP 16483)): #0 0x00007fa06a5c748d in poll () at /usr/lib/libc.so.6 #1 0x00007fa065889786 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fa06588989c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007fa06aee972b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007fa06ae9323a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #5 0x00007fa06acb60f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #6 0x00007fa06ba36e55 in () at /usr/lib/libQt5DBus.so.5 #7 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #8 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #9 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 2 (Thread 0x7fa05b2ed700 (LWP 16482)): #0 0x00007fa06a5c748d in poll () at /usr/lib/libc.so.6 #1 0x00007fa06f5888e0 in () at /usr/lib/libxcb.so.1 #2 0x00007fa06f58a679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1 #3 0x00007fa05d65d449 in () at /usr/lib/libQt5XcbQpa.so.5 #4 0x00007fa06acbad78 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fa069dca454 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fa06a5d07df in clone () at /usr/lib/libc.so.6 Thread 1 (Thread 0x7fa070eaf7c0 (LWP 16481)): [KCrash Handler] #6 0x00007fa06b40c740 in QScreen::geometry() const () at /usr/lib/libQt5Gui.so.5 #7 0x00000000004307e2 in () #8 0x000000000043444b in () #9 0x00007fa06b3eee15 in QWindow::event(QEvent*) () at /usr/lib/libQt5Gui.so.5 #10 0x00007fa06ec5c883 in QQuickWindow::event(QEvent*) () at /usr/lib/libQt5Quick.so.5 #11 0x0000000000431843 in () #12 0x00007fa06bdffe0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5 #13 0x00007fa06be07581 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5 #14 0x00007fa06ae94de0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5 #15 0x00007fa06b3dfd5a in QGuiApplicationPrivate::processGeometryChangeEvent(QWindowSystemInterfacePrivate::GeometryChangeEvent*) () at /usr/lib/libQt5Gui.so.5 #16 0x00007fa06b3dffa9 in QGuiApplicationPrivate::processWindowScreenChangedEvent(QWindowSystemInterfacePrivate::WindowScreenChangedEvent*) () at /usr/lib/libQt5Gui.so.5 #17 0x00007fa06b3e4ec5 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5 #18 0x00007fa06b3c2cab in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5 #19 0x00007fa05d6932f0 in () at /usr/lib/libQt5XcbQpa.so.5 #20 0x00007fa065889587 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0 #21 0x00007fa0658897f0 in () at /usr/lib/libglib-2.0.so.0 #22 0x00007fa06588989c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #23 0x00007fa06aee970f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #24 0x00007fa06ae9323a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #25 0x00007fa06ae9b73c in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5 #26 0x000000000041c8b2 in () #27 0x00007fa06a508291 in __libc_start_main () at /usr/lib/libc.so.6 #28 0x000000000041cc3a in _start () Reported using DrKonqi 1639989 1 notmart 2016-11-16 12:30:27 +0000 it *may* be fixed in 5.8.4 1640357 2 null 2016-11-18 09:54:04 +0000 I have been hit by what appears the same problem on openSUSE: Application: plasmashell (5.8.3) Qt Version: 5.7.0 Frameworks Version: 5.27.0 Operating System: Linux 4.8.7-1-default x86_64 Distribution: "openSUSE Tumbleweed" -- Information about the crash: * Connect the computer (DELL latitude E6430s, with intel CPU and graphic card) via a DELL docking station to an external screen * wake up the computer * work * put the computer to sleep * disconnect from the docking station * wake the computer * plasmashell has crashed in the mean while * plasmashell restarts by itself within a minute and DrKonqi appears The crash happened to me already twice in the last few days. It was months since the last time I had serious and similar issues with double screen. -- Backtrace: Application: Plasma (plasmashell), signal: Segmentation fault Using host libthread_db library "/lib64/libthread_db.so.1". [Current thread is 1 (Thread 0x7f0fa6a148c0 (LWP 2057))] Thread 11 (Thread 0x7f0ebb7ff700 (LWP 29138)): #0 0x00007f0f94df1a7d in pa_pstream_unref () at /usr/lib64/pulseaudio/libpulsecommon-9.0.so #1 0x00007f0f94df1fb9 in () at /usr/lib64/pulseaudio/libpulsecommon-9.0.so #2 0x00007f0f94df283a in () at /usr/lib64/pulseaudio/libpulsecommon-9.0.so #3 0x00007f0f9597b65c in pa_mainloop_dispatch () at /usr/lib64/libpulse.so.0 #4 0x00007f0f9597ba5c in pa_mainloop_iterate () at /usr/lib64/libpulse.so.0 #5 0x00007f0f9597bb00 in pa_mainloop_run () at /usr/lib64/libpulse.so.0 #6 0x00007f0f95989b29 in () at /usr/lib64/libpulse.so.0 #7 0x00007f0f94e021e8 in () at /usr/lib64/pulseaudio/libpulsecommon-9.0.so #8 0x00007f0f9f8c4454 in start_thread () at /lib64/libpthread.so.0 #9 0x00007f0fa00cb39f in clone () at /lib64/libc.so.6 Thread 10 (Thread 0x7f0ec6bde700 (LWP 29137)): #0 0x00007f0f9b1a3ea9 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0 #1 0x00007f0f9b15dd85 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0 #2 0x00007f0f9b15e79b in () at /usr/lib64/libglib-2.0.so.0 #3 0x00007f0f9b15e98c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #4 0x00007f0fa09e179b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f0ec0003300, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #5 0x00007f0fa098b1ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f0ec6bddce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210 #6 0x00007f0fa07b98b3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507 #7 0x00007f0fa3aeaa75 in () at /usr/lib64/libQt5Qml.so.5 #8 0x00007f0fa07be558 in QThreadPrivate::start(void*) (arg=0x5da8000) at thread/qthread_unix.cpp:344 #9 0x00007f0f9f8c4454 in start_thread () at /lib64/libpthread.so.0 #10 0x00007f0fa00cb39f in clone () at /lib64/libc.so.6 Thread 9 (Thread 0x7f0ed889a700 (LWP 3354)): #0 0x00007f0f9b1a3ea0 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0 #1 0x00007f0f9b15e832 in () at /usr/lib64/libglib-2.0.so.0 #2 0x00007f0f9b15e98c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #3 0x00007f0fa09e179b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f0ecc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #4 0x00007f0fa098b1ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f0ed8899d00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210 #5 0x00007f0fa07b98b3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507 #6 0x00007f0fa07be558 in QThreadPrivate::start(void*) (arg=0x4a7d240) at thread/qthread_unix.cpp:344 #7 0x00007f0f9f8c4454 in start_thread () at /lib64/libpthread.so.0 #8 0x00007f0fa00cb39f in clone () at /lib64/libc.so.6 Thread 8 (Thread 0x7f0ed9ff0700 (LWP 3346)): #0 0x00007f0fa00c268d in poll () at /lib64/libc.so.6 #1 0x00007f0f9b15e876 in () at /usr/lib64/libglib-2.0.so.0 #2 0x00007f0f9b15e98c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #3 0x00007f0fa09e179b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f0ed40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #4 0x00007f0fa098b1ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f0ed9fefcc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210 #5 0x00007f0fa07b98b3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507 #6 0x00007f0edc51adf7 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so #7 0x00007f0fa07be558 in QThreadPrivate::start(void*) (arg=0x4a385b0) at thread/qthread_unix.cpp:344 #8 0x00007f0f9f8c4454 in start_thread () at /lib64/libpthread.so.0 #9 0x00007f0fa00cb39f in clone () at /lib64/libc.so.6 Thread 7 (Thread 0x7f0eed794700 (LWP 2911)): #0 0x00007f0f9b1a3ea9 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0 #1 0x00007f0f9b15e832 in () at /usr/lib64/libglib-2.0.so.0 #2 0x00007f0f9b15e98c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #3 0x00007f0fa09e179b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f0ee80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #4 0x00007f0fa098b1ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f0eed793c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210 #5 0x00007f0fa07b98b3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507 #6 0x00007f0fa4679646 in () at /usr/lib64/libQt5Quick.so.5 #7 0x00007f0fa07be558 in QThreadPrivate::start(void*) (arg=0x20116b0) at thread/qthread_unix.cpp:344 #8 0x00007f0f9f8c4454 in start_thread () at /lib64/libpthread.so.0 #9 0x00007f0fa00cb39f in clone () at /lib64/libc.so.6 Thread 6 (Thread 0x7f0f84ce0700 (LWP 2463)): #0 0x00007f0f9f8ca10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0 #1 0x00007f0fa60f1834 in () at /usr/lib64/libQt5Script.so.5 #2 0x00007f0fa60f1879 in () at /usr/lib64/libQt5Script.so.5 #3 0x00007f0f9f8c4454 in start_thread () at /lib64/libpthread.so.0 #4 0x00007f0fa00cb39f in clone () at /lib64/libc.so.6 Thread 5 (Thread 0x7f0f86a06700 (LWP 2227)): #0 0x00007f0fa686d562 in _dl_update_slotinfo () at /lib64/ld-linux-x86-64.so.2 #1 0x00007f0fa686d7ac in update_get_addr () at /lib64/ld-linux-x86-64.so.2 #2 0x00007f0fa07bd3f6 in QThreadData::current(bool) () at thread/qthread_unix.cpp:189 #3 0x00007f0fa07bd3f6 in QThreadData::current(bool) (createIfNecessary=createIfNecessary@entry=true) at thread/qthread_unix.cpp:220 #4 0x00007f0fa09e0eea in postEventSourcePrepare(GSource*, gint*) (s=0x7f0f740012d0, timeout=0x7f0f86a05b14) at kernel/qeventdispatcher_glib.cpp:252 #5 0x00007f0f9b15dd79 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0 #6 0x00007f0f9b15e79b in () at /usr/lib64/libglib-2.0.so.0 #7 0x00007f0f9b15e98c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #8 0x00007f0fa09e179b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f0f740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #9 0x00007f0fa098b1ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f0f86a05ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210 #10 0x00007f0fa07b98b3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507 #11 0x00007f0fa3aeaa75 in () at /usr/lib64/libQt5Qml.so.5 #12 0x00007f0fa07be558 in QThreadPrivate::start(void*) (arg=0x18a36b0) at thread/qthread_unix.cpp:344 #13 0x00007f0f9f8c4454 in start_thread () at /lib64/libpthread.so.0 #14 0x00007f0fa00cb39f in clone () at /lib64/libc.so.6 Thread 4 (Thread 0x7f0f87fff700 (LWP 2133)): #0 0x00007f0fa07b5709 in QMutex::lock() (__m2=<optimized out>, __m1=std::memory_order_acquire, __p2=<optimized out>, __p1=@0x7f0f87ffea78: 0x0, this=0x1834e00) at /usr/include/c++/6/bits/atomic_base.h:752 #1 0x00007f0fa07b5709 in QMutex::lock() (__m=std::memory_order_acquire, __p2=<optimized out>, __p1=@0x7f0f87ffea78: 0x0, this=0x1834e00) at /usr/include/c++/6/atomic:475 #2 0x00007f0fa07b5709 in QMutex::lock() (currentValue=<synthetic pointer>, newValue=<optimized out>, expectedValue=0x0, _q_value=...) at ../../src/corelib/arch/qatomic_cxx11.h:165 #3 0x00007f0fa07b5709 in QMutex::lock() (currentValue=<synthetic pointer>, newValue=<optimized out>, expectedValue=0x0, this=0x1834e00) at ../../src/corelib/thread/qbasicatomic.h:259 #4 0x00007f0fa07b5709 in QMutex::lock() (current=<synthetic pointer>, this=0x1834e00) at thread/qmutex.h:89 #5 0x00007f0fa07b5709 in QMutex::lock() (this=this@entry=0x1834e00) at thread/qmutex.cpp:225 #6 0x00007f0fa09e0f0f in postEventSourcePrepare(GSource*, gint*) (m=0x1834e00, this=<synthetic pointer>) at ../../src/corelib/thread/qmutex.h:137 #7 0x00007f0fa09e0f0f in postEventSourcePrepare(GSource*, gint*) (this=0x1834dd0) at ../../src/corelib/thread/qthread_p.h:253 #8 0x00007f0fa09e0f0f in postEventSourcePrepare(GSource*, gint*) (s=0x7f0f7c0012d0, timeout=0x7f0f87ffeb14) at kernel/qeventdispatcher_glib.cpp:259 #9 0x00007f0f9b15dd79 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0 #10 0x00007f0f9b15e79b in () at /usr/lib64/libglib-2.0.so.0 #11 0x00007f0f9b15e98c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #12 0x00007f0fa09e179b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f0f7c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #13 0x00007f0fa098b1ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f0f87ffece0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210 #14 0x00007f0fa07b98b3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507 #15 0x00007f0fa3aeaa75 in () at /usr/lib64/libQt5Qml.so.5 #16 0x00007f0fa07be558 in QThreadPrivate::start(void*) (arg=0x18387a0) at thread/qthread_unix.cpp:344 #17 0x00007f0f9f8c4454 in start_thread () at /lib64/libpthread.so.0 #18 0x00007f0fa00cb39f in clone () at /lib64/libc.so.6 Thread 3 (Thread 0x7f0f8f304700 (LWP 2084)): #0 0x00007f0fa00c268d in poll () at /lib64/libc.so.6 #1 0x00007f0fa50363e0 in () at /usr/lib64/libxcb.so.1 #2 0x00007f0fa5038179 in xcb_wait_for_event () at /usr/lib64/libxcb.so.1 #3 0x00007f0f9166b5f9 in QXcbEventReader::run() (this=0x176d230) at qxcbconnection.cpp:1337 #4 0x00007f0fa07be558 in QThreadPrivate::start(void*) (arg=0x176d230) at thread/qthread_unix.cpp:344 #5 0x00007f0f9f8c4454 in start_thread () at /lib64/libpthread.so.0 #6 0x00007f0fa00cb39f in clone () at /lib64/libc.so.6 Thread 2 (Thread 0x7f0f93be1700 (LWP 2078)): #0 0x00007f0f9b1a3ec4 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0 #1 0x00007f0f9b15e204 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0 #2 0x00007f0f9b15e814 in () at /usr/lib64/libglib-2.0.so.0 #3 0x00007f0f9b15e98c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #4 0x00007f0fa09e179b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f0f880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #5 0x00007f0fa098b1ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f0f93be0cd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210 #6 0x00007f0fa07b98b3 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507 #7 0x00007f0fa153b3e5 in () at /usr/lib64/libQt5DBus.so.5 #8 0x00007f0fa07be558 in QThreadPrivate::start(void*) (arg=0x7f0fa17acd20) at thread/qthread_unix.cpp:344 #9 0x00007f0f9f8c4454 in start_thread () at /lib64/libpthread.so.0 #10 0x00007f0fa00cb39f in clone () at /lib64/libc.so.6 Thread 1 (Thread 0x7f0fa6a148c0 (LWP 2057)): [KCrash Handler] #6 0x00007f0fa642c174 in PlasmaQuick::ContainmentView::containment() const () at /usr/lib64/libKF5PlasmaQuick.so.5 #7 0x000000000043f208 in ShellCorona::screenForContainment(Plasma::Containment const*) const (this=0x1832e10, containment=<optimized out>) at /usr/src/debug/plasma-workspace-5.8.3/shell/shellcorona.cpp:1802 #8 0x000000000043f155 in ShellCorona::screenForContainment(Plasma::Containment const*) const (this=0x1832e10, containment=<optimized out>) at /usr/src/debug/plasma-workspace-5.8.3/shell/shellcorona.cpp:1794 #9 0x00007f0edd63a7ce in NotificationsApplet::onScreenChanges() (this=0x4639b70) at /usr/src/debug/plasma-workspace-5.8.3/applets/notifications/lib/notificationsapplet.cpp:65 #10 0x00007f0fa09b921e in QMetaObject::activate(QObject*, int, int, void**) (a=0x7fff109bfb20, r=0x4639b70, this=<optimized out>) at ../../src/corelib/kernel/qobject_impl.h:130 #11 0x00007f0fa09b921e in QMetaObject::activate(QObject*, int, int, void**) (sender=0x7f0fa3816c00, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3723 #12 0x00007f0f8c8b2dd8 in () at /usr/lib64/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so #13 0x00007f0fa098a32f in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) (this=<optimized out>, eventType=..., message=message@entry=0x7f0f800178f0, result=result@entry=0x7fff109bfc78) at kernel/qabstracteventdispatcher.cpp:466 #14 0x00007f0f9166cdc4 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) (this=this@entry=0x1761360, event=event@entry=0x7f0f800178f0) at qxcbconnection.cpp:1103 #15 0x00007f0f9166da55 in QXcbConnection::processXcbEvents() (this=0x1761360) at qxcbconnection.cpp:1735 #16 0x00007f0fa09b9d59 in QObject::event(QEvent*) (this=0x1761360, e=<optimized out>) at kernel/qobject.cpp:1263 #17 0x00007f0fa190f92c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x1761360, e=0x7f0f80026fd0) at kernel/qapplication.cpp:3799 #18 0x00007f0fa19170e1 in QApplication::notify(QObject*, QEvent*) (this=0x7fff109c0430, receiver=0x1761360, e=0x7f0f80026fd0) at kernel/qapplication.cpp:3556 #19 0x00007f0fa098d200 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x1761360, event=event@entry=0x7f0f80026fd0) at kernel/qcoreapplication.cpp:988 #20 0x00007f0fa098f98d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (event=0x7f0f80026fd0, receiver=<optimized out>) at kernel/qcoreapplication.h:231 #21 0x00007f0fa098f98d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1743850) at kernel/qcoreapplication.cpp:1649 #22 0x00007f0fa098fdf8 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1503 #23 0x00007f0fa09e1373 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x1782d80) at kernel/qeventdispatcher_glib.cpp:276 #24 0x00007f0f9b15e677 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0 #25 0x00007f0f9b15e8e0 in () at /usr/lib64/libglib-2.0.so.0 #26 0x00007f0f9b15e98c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #27 0x00007f0fa09e177f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x17a7310, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #28 0x00007f0fa098b1ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fff109c02c0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210 #29 0x00007f0fa099395c in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1261 #30 0x00007f0fa0ed9f4c in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1639 #31 0x00007f0fa190f885 in QApplication::exec() () at kernel/qapplication.cpp:2975 #32 0x000000000041e972 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma-workspace-5.8.3/shell/main.cpp:166 1640361 3 null 2016-11-18 10:05:40 +0000 Update: now I could disconnect without issues 1640880 4 notmart 2016-11-21 09:59:52 +0000 (In reply to franz.bergesund from comment #3) > Update: now I could disconnect without issues this with a post 5.8.3 update, like master or 5.8 branch? 1640882 5 null 2016-11-21 10:03:01 +0000 (In reply to Marco Martin from comment #4) > (In reply to franz.bergesund from comment #3) > > Update: now I could disconnect without issues > > this with a post 5.8.3 update, like master or 5.8 branch? Nope. Exactly same software stack as the report. It just didn't crash. So evidently it doesn't always happen. [sorry for not being clearer] 1640960 6 kde 2016-11-21 16:04:41 +0000 *** This bug has been marked as a duplicate of bug 371991 *** 1641508 7 notmart 2016-11-24 11:22:27 +0000 *** Bug 372751 has been marked as a duplicate of this bug. ***