Bug 409049

Summary: [Wayland] Discover crashed during update search
Product: [Applications] Discover Reporter: johannesposch
Component: discoverAssignee: Dan Leinir Turthra Jensen <leinir>
Status: RESOLVED UPSTREAM    
Severity: crash CC: aleixpol, bugseforuns, nate
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.16.1   
Target Milestone: ---   
Platform: unspecified   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description johannesposch 2019-06-22 18:00:07 UTC 
Application: plasma-discover (5.16.1)

Qt Version: 5.12.3
Frameworks Version: 5.59.0
Operating System: Linux 4.15.0-52-generic x86_64
Distribution: KDE neon User Edition 5.16

-- Information about the crash:
- What I was doing when the application crashed:
I closed discover during it's search for updates and then an app crashed notification showed up.

The crash can be reproduced every time.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff55bd79e00 (LWP 31990))]

Thread 10 (Thread 0x7ff4e161c700 (LWP 32010)):
#0  0x00007ff5569bcbf9 in __GI___poll (fds=0x7ff4dc0018a0, nfds=1, timeout=76593) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff550e714c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff550e715dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff5572ffdcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff5572a103a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff5570c84ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff5570c9c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff5537516db in start_thread (arg=0x7ff4e161c700) at pthread_create.c:463
#8  0x00007ff5569c988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7ff5128a3700 (LWP 32007)):
[KCrash Handler]
#6  0x00007ff54934fcf9 in wl_proxy_marshal () at /usr/lib/x86_64-linux-gnu/libwayland-client.so.0
#7  0x00007ff5497c2a69 in QtWaylandClient::QWaylandAbstractDecoration::contentImage() () at /usr/lib/x86_64-linux-gnu/libQt5WaylandClient.so.5
#8  0x00007ff53c1d9778 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/wayland-graphics-integration-client/libqt-plugin-wayland-egl.so
#9  0x00007ff55946ddbf in QOpenGLContext::swapBuffers(QSurface*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#10 0x00007ff55a763ed9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007ff55a767ae8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007ff5570c9c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007ff5537516db in start_thread (arg=0x7ff5128a3700) at pthread_create.c:463
#14 0x00007ff5569c988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7ff52890a700 (LWP 32000)):
#0  0x00007ff550eb7379 in g_mutex_lock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff550e70c11 in g_main_context_query () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff550e71447 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff550e715dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff5572ffdcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff5572a103a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff5570c84ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff5570c9c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff5537516db in start_thread (arg=0x7ff52890a700) at pthread_create.c:463
#9  0x00007ff5569c988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7ff52a965700 (LWP 31998)):
#0  0x00007ff550e713b8 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff550e71862 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff54f795026 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#3  0x00007ff550e98f15 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff5537516db in start_thread (arg=0x7ff52a965700) at pthread_create.c:463
#5  0x00007ff5569c988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7ff52b166700 (LWP 31997)):
#0  0x00007ff5569b80b4 in __GI___libc_read (fd=15, buf=0x7ff52b165ba0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ff550eb6000 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff550e70fb7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff550e71470 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff550e715dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff550e71621 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007ff550e98f15 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007ff5537516db in start_thread (arg=0x7ff52b166700) at pthread_create.c:463
#8  0x00007ff5569c988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7ff52c476700 (LWP 31996)):
#0  0x00007ff5569b80b4 in __GI___libc_read (fd=13, buf=0x7ff52c475a50, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ff550eb6000 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff550e70fb7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff550e71470 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff550e715dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff5572ffdcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff5572a103a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff5570c84ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff5570c9c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff5537516db in start_thread (arg=0x7ff52c476700) at pthread_create.c:463
#10 0x00007ff5569c988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7ff534886700 (LWP 31995)):
#0  0x00007ff5537579f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5599fd9eb7dc) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ff5537579f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5599fd9eb788, cond=0x5599fd9eb7b0) at pthread_cond_wait.c:502
#2  0x00007ff5537579f3 in __pthread_cond_wait (cond=0x5599fd9eb7b0, mutex=0x5599fd9eb788) at pthread_cond_wait.c:655
#3  0x00007ff535c25dcb in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007ff535c25af7 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007ff5537516db in start_thread (arg=0x7ff534886700) at pthread_create.c:463
#6  0x00007ff5569c988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7ff53ffff700 (LWP 31994)):
#0  0x00007ff5569b80b4 in __GI___libc_read (fd=7, buf=0x7ff53fffea30, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ff550eb6000 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff550e70fb7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff550e71470 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff550e715dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff5572ffdcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff5572a103a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff5570c84ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff5580b2115 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007ff5570c9c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007ff5537516db in start_thread (arg=0x7ff53ffff700) at pthread_create.c:463
#11 0x00007ff5569c988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ff5459d2700 (LWP 31993)):
#0  0x00007ff5569bcbf9 in __GI___poll (fds=0x7ff540003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff550e714c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff550e715dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff5572ffdcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff5572a103a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff5570c84ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff558450015 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007ff5570c9c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff5537516db in start_thread (arg=0x7ff5459d2700) at pthread_create.c:463
#9  0x00007ff5569c988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ff55bd79e00 (LWP 31990)):
#0  0x00007ff5537579f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5599fe2269c4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ff5537579f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5599fe226970, cond=0x5599fe226998) at pthread_cond_wait.c:502
#2  0x00007ff5537579f3 in __pthread_cond_wait (cond=0x5599fe226998, mutex=0x5599fe226970) at pthread_cond_wait.c:655
#3  0x00007ff5570d0dbb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff5570d10c9 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff55a765799 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007ff55a76595b in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007ff55943a655 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#8  0x00007ff55a7c6025 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007ff559c6165c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007ff559c68b90 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007ff5572a2d18 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007ff55943a251 in QWindowPrivate::setVisible(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007ff5594395dc in QWindowPrivate::destroy() () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#14 0x00007ff55943a71f in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#15 0x00007ff55a7c6025 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007ff559c6165c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007ff559c68b90 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007ff5572a2d18 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007ff55942c3f5 in QGuiApplicationPrivate::processCloseEvent(QWindowSystemInterfacePrivate::CloseEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007ff559430395 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#21 0x00007ff559408f05 in bool QWindowSystemInterfacePrivate::handleWindowSystemEvent<QWindowSystemInterface::SynchronousDelivery>(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#22 0x00007ff55941e59b in QPlatformWindow::close() () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#23 0x00007ff54b7d7dae in ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#24 0x00007ff54b7d771f in ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#25 0x00007ff549352e24 in  () at /usr/lib/x86_64-linux-gnu/libwayland-client.so.0
#26 0x00007ff54934f659 in  () at /usr/lib/x86_64-linux-gnu/libwayland-client.so.0
#27 0x00007ff549350b24 in wl_display_dispatch_queue_pending () at /usr/lib/x86_64-linux-gnu/libwayland-client.so.0
#28 0x00007ff5497b426a in QtWaylandClient::QWaylandDisplay::flushRequests() () at /usr/lib/x86_64-linux-gnu/libQt5WaylandClient.so.5
#29 0x00007ff5572d2875 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007ff5572ffdee in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007ff5572a103a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007ff5572aa170 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00005599fc6e939a in  ()
#34 0x00007ff5568c9b97 in __libc_start_main (main=0x5599fc6e8a10, argc=3, argv=0x7ffc686e21f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc686e21e8) at ../csu/libc-start.c:310
#35 0x00005599fc6e962a in _start ()

Reported using DrKonqi
Comment 1 Aleix Pol 2019-10-28 18:23:14 UTC 
This is a crash in Qt Wayland. There's not much we can do from Discover. I'd suggest trying with latest stable Qt 5.12.