https://bugs.kde.org/show_bug.cgi?id=419597
Bug ID: 419597 Summary: error open discover Product: Discover Version: 5.18.4 Platform: unspecified OS: Linux Status: REPORTED Keywords: drkonqi Severity: crash Priority: NOR Component: discover Assignee: lei...@leinir.dk Reporter: rafaelantunesvieira...@gmail.com CC: aleix...@kde.org Target Milestone: --- Application: plasma-discover (5.18.4) Qt Version: 5.14.1 Frameworks Version: 5.68.0 Operating System: Linux 5.3.0-45-generic x86_64 Windowing system: X11 Distribution: KDE neon User Edition 5.18 -- Information about the crash: This error occurred when initialized KDE Neon The crash can be reproduced sometimes. -- 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 0x7efe912cb580 (LWP 1772))] Thread 18 (Thread 0x7efdbf7fe700 (LWP 2009)): #0 0x00007efe889f0ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7efdbf7fdab0, expected=0, futex_word=0x557cc928b050) at ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1 __pthread_cond_wait_common (abstime=0x7efdbf7fdb60, mutex=0x557cc928b000, cond=0x557cc928b028) at pthread_cond_wait.c:533 #2 __pthread_cond_timedwait (cond=0x557cc928b028, mutex=0x557cc928b000, abstime=0x7efdbf7fdb60) at pthread_cond_wait.c:667 #3 0x00007efe8cbb3d2a in QWaitConditionPrivate::wait_relative (this=0x557cc928b000, deadline=...) at thread/qwaitcondition_unix.cpp:136 #4 QWaitConditionPrivate::wait (deadline=..., this=0x557cc928b000) at thread/qwaitcondition_unix.cpp:144 #5 QWaitCondition::wait (this=<optimized out>, mutex=0x557cc6bd36f8, deadline=...) at thread/qwaitcondition_unix.cpp:225 #6 0x00007efe8cbb3ee6 in QWaitCondition::wait (this=this@entry=0x557cc928aef0, mutex=mutex@entry=0x557cc6bd36f8, time=<optimized out>) at thread/qwaitcondition_unix.cpp:209 #7 0x00007efe8cbb1275 in QThreadPoolThread::run (this=0x557cc928aee0) at thread/qthreadpool.cpp:139 #8 0x00007efe8cbad7ec in QThreadPrivate::start (arg=0x557cc928aee0) at thread/qthread_unix.cpp:342 #9 0x00007efe889ea6db in start_thread (arg=0x7efdbf7fe700) at pthread_create.c:463 #10 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 17 (Thread 0x7efdd4ffa700 (LWP 2007)): #0 0x00007efe889f0ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7efdd4ff9ab0, expected=0, futex_word=0x557cc9289f70) at ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1 __pthread_cond_wait_common (abstime=0x7efdd4ff9b60, mutex=0x557cc9289f20, cond=0x557cc9289f48) at pthread_cond_wait.c:533 #2 __pthread_cond_timedwait (cond=0x557cc9289f48, mutex=0x557cc9289f20, abstime=0x7efdd4ff9b60) at pthread_cond_wait.c:667 #3 0x00007efe8cbb3d2a in QWaitConditionPrivate::wait_relative (this=0x557cc9289f20, deadline=...) at thread/qwaitcondition_unix.cpp:136 #4 QWaitConditionPrivate::wait (deadline=..., this=0x557cc9289f20) at thread/qwaitcondition_unix.cpp:144 #5 QWaitCondition::wait (this=<optimized out>, mutex=0x557cc6bd36f8, deadline=...) at thread/qwaitcondition_unix.cpp:225 #6 0x00007efe8cbb3ee6 in QWaitCondition::wait (this=this@entry=0x557cc9289670, mutex=mutex@entry=0x557cc6bd36f8, time=<optimized out>) at thread/qwaitcondition_unix.cpp:209 #7 0x00007efe8cbb1275 in QThreadPoolThread::run (this=0x557cc9289660) at thread/qthreadpool.cpp:139 #8 0x00007efe8cbad7ec in QThreadPrivate::start (arg=0x557cc9289660) at thread/qthread_unix.cpp:342 #9 0x00007efe889ea6db in start_thread (arg=0x7efdd4ffa700) at pthread_create.c:463 #10 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 16 (Thread 0x7efdd5ffc700 (LWP 2005)): [KCrash Handler] #6 flatpak_dir_list_refs (self=self@entry=0x0, kind=kind@entry=0x7efe3fb9ae9f "app", refs_out=refs_out@entry=0x7efdd5ffba80, cancellable=cancellable@entry=0x7efe38012f70, error=error@entry=0x7efdd5ffbba0) at common/flatpak-dir.c:6249 #7 0x00007efe3fb53578 in flatpak_installation_list_installed_refs (self=self@entry=0x7efe38010d60, cancellable=cancellable@entry=0x7efe38012f70, error=error@entry=0x7efdd5ffbba0) at common/flatpak-installation.c:908 #8 0x00007efe3fb559c2 in flatpak_installation_list_installed_refs_for_update (self=0x7efe38010d60, cancellable=0x7efe38012f70, error=error@entry=0x7efdd5ffbba0) at common/flatpak-installation.c:1087 #9 0x00007efe3fde9b7d in FlatpakBackend::<lambda()>::operator() (__closure=0x557cc958ff08) at ./libdiscover/backends/FlatpakBackend/FlatpakBackend.cpp:811 #10 QtConcurrent::StoredFunctorCall0<_GPtrArray*, FlatpakBackend::loadRemoteUpdates(FlatpakInstallation*)::<lambda()> >::runFunctor (this=0x557cc958fee0) at /usr/include/x86_64-linux-gnu/qt5/QtConcurrent/qtconcurrentstoredfunctioncall.h:60 #11 QtConcurrent::RunFunctionTask<_GPtrArray*>::run (this=0x557cc958fee0) at /usr/include/x86_64-linux-gnu/qt5/QtConcurrent/qtconcurrentrunbase.h:108 #12 0x00007efe8cbb0f42 in QThreadPoolThread::run (this=0x557cc92886b0) at thread/qthreadpool.cpp:99 #13 0x00007efe8cbad7ec in QThreadPrivate::start (arg=0x557cc92886b0) at thread/qthread_unix.cpp:342 #14 0x00007efe889ea6db in start_thread (arg=0x7efdd5ffc700) at pthread_create.c:463 #15 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 15 (Thread 0x7efdd67fd700 (LWP 2004)): #0 0x00007efe86899644 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #1 0x00007efe86852fd9 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007efe86853570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007efe868536dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007efe8cdfc0db in QEventDispatcherGlib::processEvents (this=0x7efdcc000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #5 0x00007efe8cd9b63a in QEventLoop::exec (this=this@entry=0x7efdd67fcc60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225 #6 0x00007efe8cbac317 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536 #7 0x00007efe8cbad7ec in QThreadPrivate::start (arg=0x557cc6b16570) at thread/qthread_unix.cpp:342 #8 0x00007efe889ea6db in start_thread (arg=0x7efdd67fd700) at pthread_create.c:463 #9 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 14 (Thread 0x7efe33fff700 (LWP 1992)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007efe8cbafd44 in QtLinuxFutex::_q_futex (val3=0, addr2=0x0, val2=0, val=<optimized out>, op=0, addr=<optimized out>) at thread/qfutex_p.h:116 #2 QtLinuxFutex::futexWait<QBasicAtomicInteger<unsigned int> > (expectedValue=<optimized out>, futex=...) at thread/qfutex_p.h:135 #3 futexSemaphoreTryAcquire_loop<false> (timeout=-1, nn=8589934593, curValue=<optimized out>, u=...) at thread/qsemaphore.cpp:219 #4 futexSemaphoreTryAcquire<false> (timeout=-1, n=n@entry=1, u=...) at thread/qsemaphore.cpp:262 #5 QSemaphore::acquire (this=this@entry=0x7efe33ffd100, n=n@entry=1) at thread/qsemaphore.cpp:326 #6 0x00007efe8cdd7fae in doActivate<false> (sender=0x557cc7ab41f0, signal_index=5, argv=0x7efe33ffd120) at kernel/qobject.cpp:3851 #7 0x00007efe8acf46eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5 #8 0x00007efe8ad9ca8d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5 #9 0x00007efe8cdd7dc9 in doActivate<false> (sender=0x7efe200e5fc0, signal_index=3, argv=0x7efe33ffd310) at kernel/qobject.cpp:3882 #10 0x00007efe8acea899 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5 #11 0x00007efe8aceb145 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5 #12 0x00007efe8cdd7dc9 in doActivate<false> (sender=0x7efe180057a0, signal_index=15, argv=0x7efe33ffd480) at kernel/qobject.cpp:3882 #13 0x00007efe8ad9502f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5 #14 0x00007efe8ad8a1db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5 #15 0x00007efe8ad8a81d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5 #16 0x00007efe8ad66761 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5 #17 0x00007efe8cdd7dc9 in doActivate<false> (sender=0x7efe200cfc70, signal_index=3, argv=0x7efe33ffe720) at kernel/qobject.cpp:3882 #18 0x00007efe8ad30ff3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5 #19 0x00007efe8ad3109c in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5 #20 0x00007efe8ad446b1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5 #21 0x00007efe8e5778bc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #22 0x00007efe8e57eac0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #23 0x00007efe8cd9cdb8 in QCoreApplication::notifyInternal2 (receiver=0x7efe201383b0, event=0x7efe33ffea40) at kernel/qcoreapplication.cpp:1092 #24 0x00007efe8cd9cf8e in QCoreApplication::sendEvent (receiver=<optimized out>, event=event@entry=0x7efe33ffea40) at kernel/qcoreapplication.cpp:1487 #25 0x00007efe8cdfcc88 in socketNotifierSourceDispatch (source=0x7efe20005040) at kernel/qeventdispatcher_glib.cpp:107 #26 0x00007efe86853417 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #27 0x00007efe86853650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #28 0x00007efe868536dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #29 0x00007efe8cdfc0db in QEventDispatcherGlib::processEvents (this=0x7efe20000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #30 0x00007efe8cd9b63a in QEventLoop::exec (this=this@entry=0x7efe33ffec60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225 #31 0x00007efe8cbac317 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536 #32 0x00007efe8cbad7ec in QThreadPrivate::start (arg=0x557cc6c53010) at thread/qthread_unix.cpp:342 #33 0x00007efe889ea6db in start_thread (arg=0x7efe33fff700) at pthread_create.c:463 #34 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 13 (Thread 0x7efe3cf46700 (LWP 1991)): #0 0x00007efe86899644 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #1 0x00007efe86852b18 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007efe868534fb in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007efe868536dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007efe8cdfc0db in QEventDispatcherGlib::processEvents (this=0x7efe2c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #5 0x00007efe8cd9b63a in QEventLoop::exec (this=this@entry=0x7efe3cf45c60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225 #6 0x00007efe8cbac317 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536 #7 0x00007efe8cbad7ec in QThreadPrivate::start (arg=0x557cc6bdc510) at thread/qthread_unix.cpp:342 #8 0x00007efe889ea6db in start_thread (arg=0x7efe3cf46700) at pthread_create.c:463 #9 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 12 (Thread 0x7efe3e01e700 (LWP 1990)): #0 0x00007efe889f0ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7efe3e01dab0, expected=0, futex_word=0x557cc6bedb24) at ../sysdeps/unix/sysv/linux/futex-internal.h:142 #1 __pthread_cond_wait_common (abstime=0x7efe3e01db60, mutex=0x557cc6bedad0, cond=0x557cc6bedaf8) at pthread_cond_wait.c:533 #2 __pthread_cond_timedwait (cond=0x557cc6bedaf8, mutex=0x557cc6bedad0, abstime=0x7efe3e01db60) at pthread_cond_wait.c:667 #3 0x00007efe8cbb3d2a in QWaitConditionPrivate::wait_relative (this=0x557cc6bedad0, deadline=...) at thread/qwaitcondition_unix.cpp:136 #4 QWaitConditionPrivate::wait (deadline=..., this=0x557cc6bedad0) at thread/qwaitcondition_unix.cpp:144 #5 QWaitCondition::wait (this=<optimized out>, mutex=0x557cc6bd36f8, deadline=...) at thread/qwaitcondition_unix.cpp:225 #6 0x00007efe8cbb3ee6 in QWaitCondition::wait (this=this@entry=0x557cc6beb280, mutex=mutex@entry=0x557cc6bd36f8, time=<optimized out>) at thread/qwaitcondition_unix.cpp:209 #7 0x00007efe8cbb1275 in QThreadPoolThread::run (this=0x557cc6beb270) at thread/qthreadpool.cpp:139 #8 0x00007efe8cbad7ec in QThreadPrivate::start (arg=0x557cc6beb270) at thread/qthread_unix.cpp:342 #9 0x00007efe889ea6db in start_thread (arg=0x7efe3e01e700) at pthread_create.c:463 #10 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 11 (Thread 0x7efe44856700 (LWP 1979)): #0 0x00007efe8c495bf9 in __GI___poll (fds=0x557cc6b4c2d0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007efe868535c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007efe86853962 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007efe857d9276 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 #4 0x00007efe8687b175 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007efe889ea6db in start_thread (arg=0x7efe44856700) at pthread_create.c:463 #6 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 10 (Thread 0x7efe45057700 (LWP 1978)): #0 0x00007efe8c495bf9 in __GI___poll (fds=0x557cc6b15640, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007efe868535c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007efe868536dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007efe86853721 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007efe8687b175 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007efe889ea6db in start_thread (arg=0x7efe45057700) at pthread_create.c:463 #6 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 9 (Thread 0x7efe535ef700 (LWP 1976)): #0 0x00007efe8c495bf9 in __GI___poll (fds=0x7efe48004ee0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007efe868535c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007efe868536dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007efe8cdfc0db in QEventDispatcherGlib::processEvents (this=0x7efe48000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #4 0x00007efe8cd9b63a in QEventLoop::exec (this=this@entry=0x7efe535eebf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225 #5 0x00007efe8cbac317 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536 #6 0x00007efe90384a86 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #7 0x00007efe8cbad7ec in QThreadPrivate::start (arg=0x557cc7d81810) at thread/qthread_unix.cpp:342 #8 0x00007efe889ea6db in start_thread (arg=0x7efe535ef700) at pthread_create.c:463 #9 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 8 (Thread 0x7efe613be700 (LWP 1970)): #0 0x00007efe889f09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x557cc673305c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x557cc6733008, cond=0x557cc6733030) at pthread_cond_wait.c:502 #2 __pthread_cond_wait (cond=0x557cc6733030, mutex=0x557cc6733008) at pthread_cond_wait.c:655 #3 0x00007efe685b84fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #4 0x00007efe685b80e7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #5 0x00007efe889ea6db in start_thread (arg=0x7efe613be700) at pthread_create.c:463 #6 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 7 (Thread 0x7efe61bbf700 (LWP 1969)): #0 0x00007efe889f09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x557cc673305c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x557cc6733008, cond=0x557cc6733030) at pthread_cond_wait.c:502 #2 __pthread_cond_wait (cond=0x557cc6733030, mutex=0x557cc6733008) at pthread_cond_wait.c:655 #3 0x00007efe685b84fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #4 0x00007efe685b80e7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #5 0x00007efe889ea6db in start_thread (arg=0x7efe61bbf700) at pthread_create.c:463 #6 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 6 (Thread 0x7efe623c0700 (LWP 1968)): #0 0x00007efe889f09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x557cc673305c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x557cc6733008, cond=0x557cc6733030) at pthread_cond_wait.c:502 #2 __pthread_cond_wait (cond=0x557cc6733030, mutex=0x557cc6733008) at pthread_cond_wait.c:655 #3 0x00007efe685b84fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #4 0x00007efe685b80e7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #5 0x00007efe889ea6db in start_thread (arg=0x7efe623c0700) at pthread_create.c:463 #6 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 5 (Thread 0x7efe62bc1700 (LWP 1967)): #0 0x00007efe889f09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x557cc673305c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x557cc6733008, cond=0x557cc6733030) at pthread_cond_wait.c:502 #2 __pthread_cond_wait (cond=0x557cc6733030, mutex=0x557cc6733008) at pthread_cond_wait.c:655 #3 0x00007efe685b84fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #4 0x00007efe685b80e7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #5 0x00007efe889ea6db in start_thread (arg=0x7efe62bc1700) at pthread_create.c:463 #6 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 4 (Thread 0x7efe72dee700 (LWP 1820)): #0 0x00007efe868505a5 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #1 0x00007efe86852ef2 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007efe86853570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007efe868536dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007efe8cdfc0db in QEventDispatcherGlib::processEvents (this=0x7efe64000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #5 0x00007efe8cd9b63a in QEventLoop::exec (this=this@entry=0x7efe72dedc40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225 #6 0x00007efe8cbac317 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536 #7 0x00007efe8e0d7605 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #8 0x00007efe8cbad7ec in QThreadPrivate::start (arg=0x557cc66dbde0) at thread/qthread_unix.cpp:342 #9 0x00007efe889ea6db in start_thread (arg=0x7efe72dee700) at pthread_create.c:463 #10 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 3 (Thread 0x7efe73fff700 (LWP 1799)): #0 0x00007efe8c495bf9 in __GI___poll (fds=0x7efe6c00bbe0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007efe868535c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007efe868536dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007efe8cdfc0db in QEventDispatcherGlib::processEvents (this=0x7efe6c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #4 0x00007efe8cd9b63a in QEventLoop::exec (this=this@entry=0x7efe73ffec30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225 #5 0x00007efe8cbac317 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536 #6 0x00007efe8ec9e555 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5 #7 0x00007efe8cbad7ec in QThreadPrivate::start (arg=0x7efe8ef16da0) at thread/qthread_unix.cpp:342 #8 0x00007efe889ea6db in start_thread (arg=0x7efe73fff700) at pthread_create.c:463 #9 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 2 (Thread 0x7efe7c7b6700 (LWP 1791)): #0 0x00007efe8c495bf9 in __GI___poll (fds=0x7efe7c7b5b68, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007efe86158747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #2 0x00007efe8615a36a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #3 0x00007efe7f184cc0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #4 0x00007efe8cbad7ec in QThreadPrivate::start (arg=0x557cc661e3b0) at thread/qthread_unix.cpp:342 #5 0x00007efe889ea6db in start_thread (arg=0x7efe7c7b6700) at pthread_create.c:463 #6 0x00007efe8c4a288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 1 (Thread 0x7efe912cb580 (LWP 1772)): #0 0x00007efe889f09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x557cc6bd37a0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x557cc6bd3750, cond=0x557cc6bd3778) at pthread_cond_wait.c:502 #2 __pthread_cond_wait (cond=0x557cc6bd3778, mutex=0x557cc6bd3750) at pthread_cond_wait.c:655 #3 0x00007efe8cbb3d9b in QWaitConditionPrivate::wait (deadline=..., this=0x557cc6bd3750) at thread/qwaitcondition_unix.cpp:146 #4 QWaitCondition::wait (this=this@entry=0x557cc6bd3720, mutex=mutex@entry=0x557cc6bd36f8, deadline=...) at thread/qwaitcondition_unix.cpp:225 #5 0x00007efe8cbb04b7 in QThreadPoolPrivate::waitForDone (this=this@entry=0x557cc6bd36a0, timer=...) at thread/qthreadpool.cpp:311 #6 0x00007efe8cbb08e6 in QThreadPoolPrivate::waitForDone (this=0x557cc6bd36a0, msecs=msecs@entry=-1) at thread/qthreadpool.cpp:321 #7 0x00007efe8cbb0969 in QThreadPool::waitForDone (this=this@entry=0x557cc7fc1720, msecs=msecs@entry=-1) at thread/qthreadpool.cpp:693 #8 0x00007efe8cbb098c in QThreadPool::~QThreadPool (this=0x557cc7fc1720, __in_chrg=<optimized out>) at thread/qthreadpool.cpp:473 #9 0x00007efe3fde33a3 in FlatpakBackend::~FlatpakBackend (this=0x557cc7fc16c0, __in_chrg=<optimized out>) at ./libdiscover/backends/FlatpakBackend/FlatpakBackend.cpp:124 #10 0x00007efe3fde3459 in FlatpakBackend::~FlatpakBackend (this=0x557cc7fc16c0, __in_chrg=<optimized out>) at ./libdiscover/backends/FlatpakBackend/FlatpakBackend.cpp:133 #11 0x00007efe9099fafe in qDeleteAll<QTypedArrayData<AbstractResourcesBackend*>::const_iterator> (end=..., begin=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h:320 #12 qDeleteAll<QVector<AbstractResourcesBackend*> > (c=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h:328 #13 ResourcesModel::~ResourcesModel (this=0x557cc6757c50, __in_chrg=<optimized out>) at ./libdiscover/resources/ResourcesModel.cpp:124 #14 0x00007efe9099fbc9 in ResourcesModel::~ResourcesModel (this=0x557cc6757c50, __in_chrg=<optimized out>) at ./libdiscover/resources/ResourcesModel.cpp:125 #15 0x00007efe8cdcfeb5 in QObject::event (this=0x557cc6757c50, e=0x557cc6c54d00) at kernel/qobject.cpp:1326 #16 0x00007efe8e5778bc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #17 0x00007efe8e57eac0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #18 0x00007efe8cd9cdb8 in QCoreApplication::notifyInternal2 (receiver=0x557cc6757c50, event=0x557cc6c54d00) at kernel/qcoreapplication.cpp:1092 #19 0x00007efe8cd9cf8e in QCoreApplication::sendEvent (receiver=receiver@entry=0x557cc6757c50, event=event@entry=0x557cc6c54d00) at kernel/qcoreapplication.cpp:1487 #20 0x00007efe8cd9fa31 in QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=52, data=0x557cc6616d80) at kernel/qcoreapplication.cpp:1832 #21 0x00007efe8cd9ffc8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=52) at kernel/qcoreapplication.cpp:1691 #22 0x00007efe8cda0011 in QCoreApplicationPrivate::execCleanup (this=<optimized out>) at kernel/qcoreapplication.cpp:1422 #23 0x00007efe8cda4dc9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1404 #24 0x0000557cc55bc312 in main (argc=<optimized out>, argv=<optimized out>) at ./discover/main.cpp:183 Possible duplicates by query: bug 419062, bug 418815, bug 417102, bug 416448, bug 416394. 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