Bug 449555

Summary: Plasma started to crash in a loop on Wayland after taking a 'rectangular region' screenshot with Spectacle
Product: [Plasma] plasmashell Reporter: Patrick Silva <bugseforuns>
Component: generic-crashAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED DUPLICATE    
Severity: crash CC: nate
Priority: NOR    
Version: master   
Target Milestone: 1.0   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed In:

Description Patrick Silva 2022-02-03 13:10:18 UTC 
SUMMARY
I took a 'rectangular region' scrrenshot with Spectacle on Wayland, saved it
and then Plasma started to crash in a loop. Re-login was the only solution
to stop the crashes.

Operating System: KDE neon Unstable Edition
KDE Plasma Version: 5.24.80
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.3
Graphics Platform: Wayland


Thread 18 (Thread 0x7f0b09ffb700 (LWP 24073)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56474b9e8ad0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56474b9e8a80, cond=0x56474b9e8aa8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x56474b9e8aa8, mutex=0x56474b9e8a80) at pthread_cond_wait.c:647
#3  0x00007f0b310686db in QWaitConditionPrivate::wait (deadline=..., this=0x56474b9e8a80) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x56474b9e63d8, mutex=mutex@entry=0x56474b9e63d0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f0b32cdcc44 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x56474b9e63c8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x56474b9e6330) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f0b32cdd0b9 in QSGRenderThread::run (this=0x56474b9e6330) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f0b31062543 in QThreadPrivate::start (arg=0x56474b9e6330) at thread/qthread_unix.cpp:331
#9  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f0b2b2e5700 (LWP 24052)):
#0  0x00007f0b30cd5aff in __GI___poll (fds=0x7f0b1c004e60, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0b2f56a36e in g_main_context_poll (priority=<optimized out>, n_fds=3, fds=0x7f0b1c004e60, timeout=<optimized out>, context=0x7f0b1c000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f0b1c000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f0b2f56a4a3 in g_main_context_iteration (context=0x7f0b1c000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f0b312a39f2 in QEventDispatcherGlib::processEvents (this=0x7f0b1c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007f0b31247c9b in QEventLoop::exec (this=this@entry=0x7f0b2b2e4bb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f0b31061362 in QThread::exec (this=this@entry=0x7f0b31c5cd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f0b31bd8f4b in QDBusConnectionManager::run (this=0x7f0b31c5cd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
#8  0x00007f0b31062543 in QThreadPrivate::start (arg=0x7f0b31c5cd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:331
#9  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f0b2bae6700 (LWP 24051)):
#0  0x00007f0b30cd5aff in __GI___poll (fds=fds@entry=0x7f0b2bae5be0, nfds=nfds@entry=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0b2f0cca16 in poll (__timeout=-1, __nfds=2, __fds=0x7f0b2bae5be0) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  QtWaylandClient::EventThread::run (this=0x5647498452c0) at qwaylanddisplay.cpp:208
#3  0x00007f0b31062543 in QThreadPrivate::start (arg=0x5647498452c0) at thread/qthread_unix.cpp:331
#4  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#5  0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f0b0a7fc700 (LWP 24072)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f0b0a7fbb50, clockid=<optimized out>, expected=0, futex_word=0x7f0af0033e30) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7f0b0a7fbb50, clockid=<optimized out>, mutex=0x7f0af0033de0, cond=0x7f0af0033e08) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f0af0033e08, mutex=0x7f0af0033de0, abstime=0x7f0b0a7fbb50) at pthread_cond_wait.c:665
#3  0x00007f0b31068668 in QWaitConditionPrivate::wait_relative (this=0x7f0af0033de0, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait (deadline=..., this=0x7f0af0033de0) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait (this=this@entry=0x7f0af000e7f0, mutex=mutex@entry=0x56474a197668, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f0b31065b71 in QThreadPoolThread::run (this=0x7f0af000e7e0) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:275
#7  0x00007f0b31062543 in QThreadPrivate::start (arg=0x7f0af000e7e0) at thread/qthread_unix.cpp:331
#8  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f0b0affd700 (LWP 24071)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f0b0affcb50, clockid=<optimized out>, expected=0, futex_word=0x7f0af00080f0) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7f0b0affcb50, clockid=<optimized out>, mutex=0x7f0af00080a0, cond=0x7f0af00080c8) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f0af00080c8, mutex=0x7f0af00080a0, abstime=0x7f0b0affcb50) at pthread_cond_wait.c:665
#3  0x00007f0b31068668 in QWaitConditionPrivate::wait_relative (this=0x7f0af00080a0, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait (deadline=..., this=0x7f0af00080a0) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait (this=this@entry=0x7f0af000fcb0, mutex=mutex@entry=0x56474a197668, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f0b31065b71 in QThreadPoolThread::run (this=0x7f0af000fca0) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:275
#7  0x00007f0b31062543 in QThreadPrivate::start (arg=0x7f0af000fca0) at thread/qthread_unix.cpp:331
#8  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f0b0b7fe700 (LWP 24070)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f0b0b7fdb50, clockid=<optimized out>, expected=0, futex_word=0x7f0af00088d0) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7f0b0b7fdb50, clockid=<optimized out>, mutex=0x7f0af0008880, cond=0x7f0af00088a8) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f0af00088a8, mutex=0x7f0af0008880, abstime=0x7f0b0b7fdb50) at pthread_cond_wait.c:665
#3  0x00007f0b31068668 in QWaitConditionPrivate::wait_relative (this=0x7f0af0008880, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait (deadline=..., this=0x7f0af0008880) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait (this=this@entry=0x7f0af000fa40, mutex=mutex@entry=0x56474a197668, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f0b31065b71 in QThreadPoolThread::run (this=0x7f0af000fa30) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:275
#7  0x00007f0b31062543 in QThreadPrivate::start (arg=0x7f0af000fa30) at thread/qthread_unix.cpp:331
#8  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f0b0bfff700 (LWP 24069)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f0b0bffeb50, clockid=<optimized out>, expected=0, futex_word=0x7f0af000f050) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7f0b0bffeb50, clockid=<optimized out>, mutex=0x7f0af000f000, cond=0x7f0af000f028) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f0af000f028, mutex=0x7f0af000f000, abstime=0x7f0b0bffeb50) at pthread_cond_wait.c:665
#3  0x00007f0b31068668 in QWaitConditionPrivate::wait_relative (this=0x7f0af000f000, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait (deadline=..., this=0x7f0af000f000) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait (this=this@entry=0x7f0af0012700, mutex=mutex@entry=0x56474a197668, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f0b31065b71 in QThreadPoolThread::run (this=0x7f0af00126f0) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:275
#7  0x00007f0b31062543 in QThreadPrivate::start (arg=0x7f0af00126f0) at thread/qthread_unix.cpp:331
#8  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f0b113ee700 (LWP 24065)):
#0  0x00007f0b30cd5aff in __GI___poll (fds=0x7f0af00110d0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0b2f56a36e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f0af00110d0, timeout=<optimized out>, context=0x7f0af0004c10) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f0af0004c10, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f0b2f56a4a3 in g_main_context_iteration (context=0x7f0af0004c10, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f0b312a39f2 in QEventDispatcherGlib::processEvents (this=0x7f0af0005d60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007f0b31247c9b in QEventLoop::exec (this=this@entry=0x7f0b113edba0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f0b31061362 in QThread::exec (this=this@entry=0x56474b8d0f90) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f0b32c1740a in QQuickPixmapReader::run (this=0x56474b8d0f90) at util/qquickpixmapcache.cpp:1024
#8  0x00007f0b31062543 in QThreadPrivate::start (arg=0x56474b8d0f90) at thread/qthread_unix.cpp:331
#9  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f0b18d23700 (LWP 24060)):
#0  0x00007f0b30cd5aff in __GI___poll (fds=0x7f0aec005240, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0b2f56a36e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f0aec005240, timeout=<optimized out>, context=0x7f0aec000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f0aec000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f0b2f56a4a3 in g_main_context_iteration (context=0x7f0aec000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f0b312a39f2 in QEventDispatcherGlib::processEvents (this=0x7f0aec000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007f0b31247c9b in QEventLoop::exec (this=this@entry=0x7f0b18d22bc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f0b31061362 in QThread::exec (this=this@entry=0x564749c97900) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f0b3287d539 in QQmlThreadPrivate::run (this=0x564749c97900) at qml/ftw/qqmlthread.cpp:155
#8  0x00007f0b31062543 in QThreadPrivate::start (arg=0x564749c97900) at thread/qthread_unix.cpp:331
#9  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f0b19524700 (LWP 24059)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f0b19523b50, clockid=<optimized out>, expected=0, futex_word=0x7f0af4006510) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7f0b19523b50, clockid=<optimized out>, mutex=0x7f0af40064c0, cond=0x7f0af40064e8) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f0af40064e8, mutex=0x7f0af40064c0, abstime=0x7f0b19523b50) at pthread_cond_wait.c:665
#3  0x00007f0b31068668 in QWaitConditionPrivate::wait_relative (this=0x7f0af40064c0, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait (deadline=..., this=0x7f0af40064c0) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait (this=this@entry=0x7f0af4006230, mutex=mutex@entry=0x7f0af4005ec8, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f0b31065b71 in QThreadPoolThread::run (this=0x7f0af4006220) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:275
#7  0x00007f0b31062543 in QThreadPrivate::start (arg=0x7f0af4006220) at thread/qthread_unix.cpp:331
#8  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f0b19d25700 (LWP 24058)):
#0  0x00007f0b30cd5aff in __GI___poll (fds=0x7f0af4004e60, nfds=2, timeout=134576) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0b2f56a36e in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x7f0af4004e60, timeout=<optimized out>, context=0x7f0af4000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f0af4000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f0b2f56a4a3 in g_main_context_iteration (context=0x7f0af4000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f0b312a39f2 in QEventDispatcherGlib::processEvents (this=0x7f0af4000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007f0b31247c9b in QEventLoop::exec (this=this@entry=0x7f0b19d24be0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f0b31061362 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f0b31062543 in QThreadPrivate::start (arg=0x564749c7e9a0) at thread/qthread_unix.cpp:331
#8  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f0b1a7fc700 (LWP 24057)):
#0  0x00007f0b30cd5aff in __GI___poll (fds=0x7f0b00004e60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0b2f56a36e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f0b00004e60, timeout=<optimized out>, context=0x7f0b00000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f0b00000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f0b2f56a4a3 in g_main_context_iteration (context=0x7f0b00000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f0b312a39f2 in QEventDispatcherGlib::processEvents (this=0x7f0b00000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007f0b31247c9b in QEventLoop::exec (this=this@entry=0x7f0b1a7fbbe0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f0b31061362 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f0b31062543 in QThreadPrivate::start (arg=0x564749bdb420) at thread/qthread_unix.cpp:331
#8  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f0b1affd700 (LWP 24056)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x564749a3be28) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x564749a3bdd8, cond=0x564749a3be00) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x564749a3be00, mutex=0x564749a3bdd8) at pthread_cond_wait.c:647
#3  0x00007f0b29032b1b in cnd_wait (mtx=0x564749a3bdd8, cond=0x564749a3be00) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x564749a3d740) at ../src/util/u_queue.c:294
#5  0x00007f0b2903271b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f0b1b7fe700 (LWP 24055)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x564749a3be28) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x564749a3bdd8, cond=0x564749a3be00) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x564749a3be00, mutex=0x564749a3bdd8) at pthread_cond_wait.c:647
#3  0x00007f0b29032b1b in cnd_wait (mtx=0x564749a3bdd8, cond=0x564749a3be00) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x564749a3d3c0) at ../src/util/u_queue.c:294
#5  0x00007f0b2903271b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f0b1bfff700 (LWP 24054)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x564749a3be28) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x564749a3bdd8, cond=0x564749a3be00) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x564749a3be00, mutex=0x564749a3bdd8) at pthread_cond_wait.c:647
#3  0x00007f0b29032b1b in cnd_wait (mtx=0x564749a3bdd8, cond=0x564749a3be00) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x564749a3d180) at ../src/util/u_queue.c:294
#5  0x00007f0b2903271b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f0b28cc5700 (LWP 24053)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x564749a3be28) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x564749a3bdd8, cond=0x564749a3be00) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x564749a3be00, mutex=0x564749a3bdd8) at pthread_cond_wait.c:647
#3  0x00007f0b29032b1b in cnd_wait (mtx=0x564749a3bdd8, cond=0x564749a3be00) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x5647498e94b0) at ../src/util/u_queue.c:294
#5  0x00007f0b2903271b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f0b2c2e7700 (LWP 24050)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x564749832880) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x564749832830, cond=0x564749832858) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x564749832858, mutex=0x564749832830) at pthread_cond_wait.c:647
#3  0x00007f0b310686db in QWaitConditionPrivate::wait (deadline=..., this=0x564749832830) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x564749844f90, mutex=mutex@entry=0x564749844f88, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f0b2f0cc9bd in QtWaylandClient::EventThread::waitForReading (this=0x564749844f50) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QtWaylandClient::EventThread::run (this=0x564749844f50) at qwaylanddisplay.cpp:206
#7  0x00007f0b31062543 in QThreadPrivate::start (arg=0x564749844f50) at thread/qthread_unix.cpp:331
#8  0x00007f0b30b46609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f0b30ce2293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f0b2ce234c0 (LWP 24045)):
#0  __GI_raise (sig=sig@entry=11) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x00007f0b33154ff5 in KCrash::defaultCrashHandler (sig=11) at ./src/kcrash.cpp:609
#2  <signal handler called>
#3  0x00007f0b3343a725 in KUserFeedback::OpenGLInfoSource::data() () from /lib/x86_64-linux-gnu/libKUserFeedbackCore.so.1
#4  0x00007f0b334472e5 in ?? () from /lib/x86_64-linux-gnu/libKUserFeedbackCore.so.1
#5  0x00007f0b3344913e in ?? () from /lib/x86_64-linux-gnu/libKUserFeedbackCore.so.1
#6  0x00007f0b33449376 in ?? () from /lib/x86_64-linux-gnu/libKUserFeedbackCore.so.1
#7  0x00007f0b312801be in QtPrivate::QSlotObjectBase::call (a=0x7ffcb36c7b50, r=0x564749aa7130, this=0x564749c7e7f0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#8  doActivate<false> (sender=0x564749bdef60, signal_index=10, argv=0x7ffcb36c7b50) at kernel/qobject.cpp:3886
#9  0x00007f0b31279587 in QMetaObject::activate (sender=sender@entry=0x564749bdef60, m=m@entry=0x7f0b30b37960 <QNetworkReply::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x0) at kernel/qobject.cpp:3946
#10 0x00007f0b30ad76c7 in QNetworkReply::finished (this=this@entry=0x564749bdef60) at .moc/moc_qnetworkreply.cpp:404
#11 0x00007f0b30a28126 in QNetworkReplyHttpImplPrivate::finished (this=0x564749ae80f0) at access/qnetworkreplyhttpimpl.cpp:2280
#12 0x00007f0b30a283a5 in QNetworkReplyHttpImplPrivate::replyFinished (this=<optimized out>) at access/qnetworkreplyhttpimpl.cpp:1119
#13 0x00007f0b30adc6ee in QNetworkReplyHttpImpl::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/../access/qnetworkreplyhttpimpl_p.h:98
#14 0x00007f0b31276d39 in QObject::event (this=0x564749bdef60, e=0x7f0af4013290) at kernel/qobject.cpp:1314
#15 0x00007f0b31f5edc3 in QApplicationPrivate::notify_helper (this=this@entry=0x56474982daa0, receiver=receiver@entry=0x564749bdef60, e=e@entry=0x7f0af4013290) at kernel/qapplication.cpp:3632
#16 0x00007f0b31f67bb8 in QApplication::notify (this=0x7ffcb36c8330, receiver=0x564749bdef60, e=0x7f0af4013290) at kernel/qapplication.cpp:3156
#17 0x00007f0b3124919a in QCoreApplication::notifyInternal2 (receiver=0x564749bdef60, event=0x7f0af4013290) at ../../include/QtCore/5.15.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:332
#18 0x00007f0b3124baa1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x564749806ef0) at kernel/qcoreapplication.cpp:1821
#19 0x00007f0b312a4397 in postEventSourceDispatch (s=0x564749847ba0) at kernel/qeventdispatcher_glib.cpp:277
#20 0x00007f0b2f56a17d in g_main_dispatch (context=0x56474984b4d0) at ../../../glib/gmain.c:3309
#21 g_main_context_dispatch (context=context@entry=0x56474984b4d0) at ../../../glib/gmain.c:3974
#22 0x00007f0b2f56a400 in g_main_context_iterate (context=context@entry=0x56474984b4d0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4047
#23 0x00007f0b2f56a4a3 in g_main_context_iteration (context=0x56474984b4d0, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#24 0x00007f0b312a39f2 in QEventDispatcherGlib::processEvents (this=0x564749846380, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#25 0x00007f0b31247c9b in QEventLoop::exec (this=this@entry=0x7ffcb36c8210, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#26 0x00007f0b3124fe44 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#27 0x0000564747d08115 in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:238
Comment 1 Nate Graham 2022-02-03 18:21:46 UTC 

*** This bug has been marked as a duplicate of bug 449505 ***