https://bugs.kde.org/show_bug.cgi?id=378753

            Bug ID: 378753
           Summary: Crash within login
           Product: plasmashell
           Version: 5.9.4
          Platform: Compiled Sources
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected], [email protected]
  Target Milestone: 1.0

Application: plasmashell (5.9.4)
 (Compiled from sources)
Qt Version: 5.8.0
Frameworks Version: 5.32.0
Operating System: Linux 4.9.11-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
Just login after long-time of locked state. It happens sometimes, but it's
unpredictably :(

The crash does not seem to be reproducible.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0f41a16800 (LWP 659))]

Thread 20 (Thread 0x7f0e36dee700 (LWP 5627)):
#0  0x00007f0f3a68eca6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f0f1705fe44 in  () at /usr/lib/libGLX_nvidia.so.0
#2  0x00007f0f15b6d394 in  () at /usr/lib/libnvidia-glcore.so.378.13
#3  0x00007f0f1705f12c in  () at /usr/lib/libGLX_nvidia.so.0
#4  0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7f0e375ef700 (LWP 5626)):
#0  0x00007f0f3a68e756 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f0f3b7d458b in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f0f3f52b665 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f0f3f52bf72 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f0f3b7d36d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7f0e54980700 (LWP 5588)):
#0  0x00007f0f3a68eca6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f0f1705fe44 in  () at /usr/lib/libGLX_nvidia.so.0
#2  0x00007f0f15b6d394 in  () at /usr/lib/libnvidia-glcore.so.378.13
#3  0x00007f0f1705f12c in  () at /usr/lib/libGLX_nvidia.so.0
#4  0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f0e55e81700 (LWP 5587)):
#0  0x00007f0f3a68e756 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f0f3b7d458b in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f0f3f52b665 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f0f3f52bf72 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f0f3b7d36d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f0e568ee700 (LWP 896)):
#0  0x00007f0f3a68eca6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f0f1705fe44 in  () at /usr/lib/libGLX_nvidia.so.0
#2  0x00007f0f15b6d394 in  () at /usr/lib/libnvidia-glcore.so.378.13
#3  0x00007f0f1705f12c in  () at /usr/lib/libGLX_nvidia.so.0
#4  0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f0e570ef700 (LWP 895)):
#0  0x00007f0f3a68e756 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f0f3b7d458b in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f0f3f52b665 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f0f3f52bf72 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f0f3b7d36d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f0e64f46700 (LWP 894)):
#0  0x00007f0f3a691d8c in __lll_lock_wait () at /usr/lib/libpthread.so.0
#1  0x00007f0f3a68ab96 in pthread_mutex_lock () at /usr/lib/libpthread.so.0
#2  0x00007f0f170622fc in  () at /usr/lib/libGLX_nvidia.so.0
#3  0x00007f0f15e8d735 in  () at /usr/lib/libnvidia-glcore.so.378.13
#4  0x00007f0f15ed3325 in  () at /usr/lib/libnvidia-glcore.so.378.13
#5  0x00007f0f15f6fb9d in  () at /usr/lib/libnvidia-glcore.so.378.13
#6  0x00007f0f15e61fb0 in  () at /usr/lib/libnvidia-glcore.so.378.13
#7  0x00007f0f15e6206e in  () at /usr/lib/libnvidia-glcore.so.378.13
#8  0x00007f0f15dfee83 in  () at /usr/lib/libnvidia-glcore.so.378.13
#9  0x00007f0f15a51a0b in  () at /usr/lib/libnvidia-glcore.so.378.13
#10 0x00007f0f159b8b2c in  () at /usr/lib/libnvidia-glcore.so.378.13
#11 0x00007f0f15b6d09d in  () at /usr/lib/libnvidia-glcore.so.378.13
#12 0x00007f0f1705f12c in  () at /usr/lib/libGLX_nvidia.so.0
#13 0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#14 0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f0e65747700 (LWP 893)):
#0  0x00007f0f3a68e756 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f0f3b7d458b in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f0f3f52b665 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f0f3f52bf72 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f0f3b7d36d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f0e66b46700 (LWP 892)):
[KCrash Handler]
#6  0x00007f0f15df3994 in  () at /usr/lib/libnvidia-glcore.so.378.13
#7  0x00007f0f15df420b in  () at /usr/lib/libnvidia-glcore.so.378.13
#8  0x00007f0f15a435ff in  () at /usr/lib/libnvidia-glcore.so.378.13
#9  0x00007f0f15a45626 in  () at /usr/lib/libnvidia-glcore.so.378.13
#10 0x00007f0f15b65c4e in  () at /usr/lib/libnvidia-glcore.so.378.13
#11 0x00007f0f15b6d09d in  () at /usr/lib/libnvidia-glcore.so.378.13
#12 0x00007f0f1705f12c in  () at /usr/lib/libGLX_nvidia.so.0
#13 0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#14 0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f0e67347700 (LWP 891)):
#0  0x00007f0f3a68eca6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f0f1705fe44 in  () at /usr/lib/libGLX_nvidia.so.0
#2  0x00007f0f15b6bf5a in  () at /usr/lib/libnvidia-glcore.so.378.13
#3  0x00007f0f1702af3a in  () at /usr/lib/libGLX_nvidia.so.0
#4  0x00007f0f2aad06f2 in  () at
/usr/lib/qt/plugins/xcbglintegrations/libqxcb-glx-integration.so
#5  0x00007f0f3bf3567d in QOpenGLContext::swapBuffers(QSurface*) () at
/usr/lib/libQt5Gui.so.5
#6  0x00007f0f3f5276f6 in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007f0f3f52be34 in  () at /usr/lib/libQt5Quick.so.5
#8  0x00007f0f3b7d36d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f0e7ffff700 (LWP 878)):
#0  0x00007f0f3a691d8c in __lll_lock_wait () at /usr/lib/libpthread.so.0
#1  0x00007f0f3a68ab96 in pthread_mutex_lock () at /usr/lib/libpthread.so.0
#2  0x00007f0f170622fc in  () at /usr/lib/libGLX_nvidia.so.0
#3  0x00007f0f15e8d735 in  () at /usr/lib/libnvidia-glcore.so.378.13
#4  0x00007f0f15ed3325 in  () at /usr/lib/libnvidia-glcore.so.378.13
#5  0x00007f0f15f6fb9d in  () at /usr/lib/libnvidia-glcore.so.378.13
#6  0x00007f0f15e61fb0 in  () at /usr/lib/libnvidia-glcore.so.378.13
#7  0x00007f0f15e6206e in  () at /usr/lib/libnvidia-glcore.so.378.13
#8  0x00007f0f15dfee83 in  () at /usr/lib/libnvidia-glcore.so.378.13
#9  0x00007f0f15a51a0b in  () at /usr/lib/libnvidia-glcore.so.378.13
#10 0x00007f0f159b8b2c in  () at /usr/lib/libnvidia-glcore.so.378.13
#11 0x00007f0f15b6d09d in  () at /usr/lib/libnvidia-glcore.so.378.13
#12 0x00007f0f1705f12c in  () at /usr/lib/libGLX_nvidia.so.0
#13 0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#14 0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f0e84e61700 (LWP 877)):
#0  0x00007f0f3a68e756 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f0f3b7d458b in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f0f3f52b665 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f0f3f52bf72 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f0f3b7d36d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f0e85e4c700 (LWP 876)):
#0  0x00007fff2bb709f7 in clock_gettime ()
#1  0x00007f0f3b0f3826 in clock_gettime () at /usr/lib/libc.so.6
#2  0x00007f0f3ba02201 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f0f3ba009c9 in QTimerInfoList::updateCurrentTime() () at
/usr/lib/libQt5Core.so.5
#4  0x00007f0f3ba00f75 in QTimerInfoList::timerWait(timespec&) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f0f3ba0263e in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f0f35ebcc8d in g_main_context_prepare () at
/usr/lib/libglib-2.0.so.0
#7  0x00007f0f35ebd6cb in  () at /usr/lib/libglib-2.0.so.0
#8  0x00007f0f35ebd8bc in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#9  0x00007f0f3ba0306b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#10 0x00007f0f3b9ac89a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#11 0x00007f0f3b7cea73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#12 0x00007f0f3f4b9fd6 in  () at /usr/lib/libQt5Quick.so.5
#13 0x00007f0f3b7d36d8 in  () at /usr/lib/libQt5Core.so.5
#14 0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#15 0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f0f14da1700 (LWP 875)):
#0  0x00007f0f3a68eca6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f0f1705fe44 in  () at /usr/lib/libGLX_nvidia.so.0
#2  0x00007f0f15b6d394 in  () at /usr/lib/libnvidia-glcore.so.378.13
#3  0x00007f0f1705f12c in  () at /usr/lib/libGLX_nvidia.so.0
#4  0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f0f17bed700 (LWP 873)):
#0  0x00007f0f3a68e756 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f0f411ad234 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f0f411ad279 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f0f21d1d700 (LWP 818)):
#0  0x00007f0f35f02e49 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f0f35ebd6a0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f0f35ebd8bc in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f0f3ba0306b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f0f3b9ac89a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f0f3b7cea73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f0f3e906025 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f0f3b7d36d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f0f23fff700 (LWP 755)):
#0  0x00007f0f35f02e49 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f0f35ebd8a8 in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#2  0x00007f0f3ba0306b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#3  0x00007f0f3b9ac89a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#4  0x00007f0f3b7cea73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007f0f3e906025 in  () at /usr/lib/libQt5Qml.so.5
#6  0x00007f0f3b7d36d8 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f0f29a77700 (LWP 695)):
#0  0x00007f0f35f02e49 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f0f35ebcc99 in g_main_context_prepare () at
/usr/lib/libglib-2.0.so.0
#2  0x00007f0f35ebd6cb in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f0f35ebd8bc in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#4  0x00007f0f3ba0306b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#5  0x00007f0f3b9ac89a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#6  0x00007f0f3b7cea73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f0f3c553125 in  () at /usr/lib/libQt5DBus.so.5
#8  0x00007f0f3b7d36d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f0f2baf3700 (LWP 668)):
#0  0x00007f0f3b0dc67d in poll () at /usr/lib/libc.so.6
#1  0x00007f0f400d38e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f0f400d5679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f0f2e065239 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f0f3b7d36d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f0f3a6882e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f0f3b0e654f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f0f41a16800 (LWP 659)):
#0  0x00007f0f3a68e756 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f0f3b7d458b in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f0f3f5288ce in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f0f3f52aad7 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f0f3f52b0d3 in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f0f3bf07d05 in QWindow::event(QEvent*) () at /usr/lib/libQt5Gui.so.5
#6  0x00007f0f3f57f4a5 in QQuickWindow::event(QEvent*) () at
/usr/lib/libQt5Quick.so.5
#7  0x0000000000430923 in  ()
#8  0x00007f0f3c91c34c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#9  0x00007f0f3c923b61 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#10 0x00007f0f3b9ae440 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#11 0x00007f0f3befcd2d in
QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*)
() at /usr/lib/libQt5Gui.so.5
#12 0x00007f0f3befd93d in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
() at /usr/lib/libQt5Gui.so.5
#13 0x00007f0f3bed944b in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() at /usr/lib/libQt5Gui.so.5
#14 0x00007f0f2e0c59e0 in  () at /usr/lib/libQt5XcbQpa.so.5
#15 0x00007f0f35ebd5a7 in g_main_context_dispatch () at
/usr/lib/libglib-2.0.so.0
#16 0x00007f0f35ebd810 in  () at /usr/lib/libglib-2.0.so.0
#17 0x00007f0f35ebd8bc in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#18 0x00007f0f3ba0304f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#19 0x00007f0f3b9ac89a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#20 0x00007f0f3b9b4de4 in QCoreApplication::exec() () at
/usr/lib/libQt5Core.so.5
#21 0x000000000041ca42 in  ()
#22 0x00007f0f3b01a511 in __libc_start_main () at /usr/lib/libc.so.6
#23 0x000000000041cdca in _start ()

Reported using DrKonqi

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