Bug 429342

Summary: Plasma crashed on Wayland when I enabled "Show on-screen display when switching" in Virtual Desktops KCM
Product: [Plasma] plasmashell Reporter: Patrick Silva <bugseforuns>
Component: generic-crashAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED DUPLICATE    
Severity: crash CC: nate
Priority: NOR Keywords: wayland
Version: master   
Target Milestone: 1.0   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Patrick Silva 2020-11-19 10:43:33 UTC 
SUMMARY
I opened Virtual Desktops KCM via context menu of Pager widget placed on Plasma
panel, checked "Show on-screen display when switching" option, clicked on
"Apply" button and Plasma crashed.

SOFTWARE/OS VERSIONS
Operating System: KDE neon Unstable Edition
KDE Plasma Version: 5.20.80
KDE Frameworks Version: 5.77.0
Qt Version: 5.15.1

Application: Plasma (plasmashell), signal: Segmentation fault
Content of s_kcrashErrorMessage: (null)
[New LWP 11781]
[New LWP 11875]
[New LWP 11918]
[New LWP 11919]
[New LWP 11920]
[New LWP 11921]
[New LWP 11923]
[New LWP 11924]
[New LWP 11927]
[New LWP 11932]
[New LWP 11933]
[New LWP 11937]
[New LWP 11963]
[New LWP 12988]
[New LWP 14026]
[New LWP 14027]
[New LWP 14139]
[New LWP 14788]
[New LWP 17908]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f290dae1aff in __GI___poll (fds=fds@entry=0x7ffe6492e8e8, nfds=nfds@entry=1, timeout=timeout@entry=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7f2909d492c0 (LWP 11749))]

Thread 20 (Thread 0x7f289dfbc700 (LWP 17908)):
#0  __GI___libc_write (nbytes=124, buf=0x7f289dfbb790, fd=2) at ../sysdeps/unix/sysv/linux/write.c:26
#1  __GI___libc_write (fd=2, buf=0x7f289dfbb790, nbytes=124) at ../sysdeps/unix/sysv/linux/write.c:24
#2  0x00007f290da5e00d in _IO_new_file_write (f=0x7f290dbb85c0 <_IO_2_1_stderr_>, data=0x7f289dfbb790, n=124) at fileops.c:1176
#3  0x00007f290da5e928 in new_do_write (to_do=<optimized out>, data=0x7f289dfbb790 "\033[1;31m[E][000009355.610393][data-loop.c:82 do_loop()] data-loop 0x55b11bf7e6a0: iterate error -9 (Bad file descriptor)\033[0m\n", fp=0x7f290dbb85c0 <_IO_2_1_stderr_>) at libioP.h:948
#4  _IO_new_file_xsputn (n=124, data=<optimized out>, f=<optimized out>) at fileops.c:1255
#5  _IO_new_file_xsputn (f=0x7f290dbb85c0 <_IO_2_1_stderr_>, data=<optimized out>, n=124) at fileops.c:1197
#6  0x00007f290da51f0b in __GI__IO_fputs (str=0x7f289dfbb790 "\033[1;31m[E][000009355.610393][data-loop.c:82 do_loop()] data-loop 0x55b11bf7e6a0: iterate error -9 (Bad file descriptor)\033[0m\n", fp=0x7f290dbb85c0 <_IO_2_1_stderr_>) at libioP.h:948
#7  0x00007f28f853c360 in  () at /usr/lib/x86_64-linux-gnu/spa-0.2/support/libspa-support.so
#8  0x00007f28e5113da0 in pw_log_log () at /lib/x86_64-linux-gnu/libpipewire-0.3.so.0
#9  0x00007f28e51004ae in  () at /lib/x86_64-linux-gnu/libpipewire-0.3.so.0
#10 0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f289e7bd700 (LWP 14788)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b122010b24) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b122010ad0, cond=0x55b122010af8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b122010af8, mutex=0x55b122010ad0) at pthread_cond_wait.c:638
#3  0x00007f290de74ceb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55b122010ad0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x55b11c0353e8, mutex=mutex@entry=0x55b11c0353e0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f290fc08774 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55b11c0353d8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55b11c035340) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f290fc08be9 in QSGRenderThread::run() (this=0x55b11c035340) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b11c035340) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f289f7fe700 (LWP 14139)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b1220ca2f0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b1220ca2a0, cond=0x55b1220ca2c8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b1220ca2c8, mutex=0x55b1220ca2a0) at pthread_cond_wait.c:638
#3  0x00007f290de74ceb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55b1220ca2a0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x55b122090de8, mutex=mutex@entry=0x55b122090de0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f290fc08774 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55b122090dd8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55b122090d40) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f290fc08be9 in QSGRenderThread::run() (this=0x55b122090d40) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b122090d40) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f28d3e7d700 (LWP 14027)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f28c4014120) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f28c40140d0, cond=0x7f28c40140f8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f28c40140f8, mutex=0x7f28c40140d0) at pthread_cond_wait.c:638
#3  0x00007f290de74ceb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x7f28c40140d0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x7f2904065bc8, mutex=mutex@entry=0x7f2904065bc0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f290fc08774 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x7f2904065bb8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x7f2904065b20) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f290fc08be9 in QSGRenderThread::run() (this=0x7f2904065b20) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x7f2904065b20) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f28c8a4c700 (LWP 14026)):
#0  __GI___libc_read (nbytes=10, buf=0x7f28c8a4bb1e, fd=49) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=49, buf=0x7f28c8a4bb1e, nbytes=10) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f28e4c64955 in pa_read () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.99.so
#3  0x00007f28e4f27416 in pa_mainloop_prepare () at /lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f28e4f27eb4 in pa_mainloop_iterate () at /lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f28e4f27f70 in pa_mainloop_run () at /lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f28e4f3611d in  () at /lib/x86_64-linux-gnu/libpulse.so.0
#7  0x00007f28e4c9367c in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.99.so
#8  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f289ffff700 (LWP 12988)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b111cba6c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b111cba670, cond=0x55b111cba698) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b111cba698, mutex=0x55b111cba670) at pthread_cond_wait.c:638
#3  0x00007f290de74ceb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55b111cba670) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x55b1157b3748, mutex=mutex@entry=0x55b1157b3740, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f290fc08774 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55b1157b3738) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55b1157b36a0) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f290fc08be9 in QSGRenderThread::run() (this=0x55b1157b36a0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b1157b36a0) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f28c9ded700 (LWP 11963)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b119468be4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b119468b90, cond=0x55b119468bb8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b119468bb8, mutex=0x55b119468b90) at pthread_cond_wait.c:638
#3  0x00007f290de74ceb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55b119468b90) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x55b119467a38, mutex=mutex@entry=0x55b119467a30, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f290fc08774 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55b119467a28) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55b119467990) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f290fc08be9 in QSGRenderThread::run() (this=0x55b119467990) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b119467990) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f28ca9ee700 (LWP 11937)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b116640f00) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b116640eb0, cond=0x55b116640ed8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b116640ed8, mutex=0x55b116640eb0) at pthread_cond_wait.c:638
#3  0x00007f290de74ceb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55b116640eb0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x55b11663fc58, mutex=mutex@entry=0x55b11663fc50, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f290fc08774 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55b11663fc48) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55b11663fbb0) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f290fc08be9 in QSGRenderThread::run() (this=0x55b11663fbb0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b11663fbb0) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f28d0b50700 (LWP 11933)):
#0  g_source_ref (source=0x7f28b4004980) at ../../../glib/gmain.c:2166
#1  0x00007f290c415168 in g_source_iter_next (iter=iter@entry=0x7f28d0b4fb20, source=source@entry=0x7f28d0b4fb18) at ../../../glib/gmain.c:1046
#2  0x00007f290c416aff in g_main_context_check (context=context@entry=0x7f28b4000c20, max_priority=2147483647, fds=fds@entry=0x7f28b4004c30, n_fds=n_fds@entry=1) at ../../../glib/gmain.c:3860
#3  0x00007f290c417152 in g_main_context_iterate (context=context@entry=0x7f28b4000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4044
#4  0x00007f290c4172e3 in g_main_context_iteration (context=0x7f28b4000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#5  0x00007f290e0ad24b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f28b4000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f290e05143b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f28d0b4fce0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#7  0x00007f290de6d982 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b11512bfb0) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f28d25b0700 (LWP 11932)):
#0  0x00007f290c463d4c in g_private_get (key=key@entry=0x7f290c4ec4a0 <g_thread_specific_private>) at ../../../glib/gthread-posix.c:1053
#1  0x00007f290c440ea4 in g_thread_self () at ../../../glib/gthread.c:1016
#2  0x00007f290c416220 in g_main_context_acquire (context=0x7f28c0000c20) at ../../../glib/gmain.c:3365
#3  0x00007f290c417065 in g_main_context_iterate (context=context@entry=0x7f28c0000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:3997
#4  0x00007f290c4172e3 in g_main_context_iteration (context=0x7f28c0000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#5  0x00007f290e0ad24b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f28c0000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f290e05143b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f28d25afce0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#7  0x00007f290de6d982 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b114c63f70) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f28e77fe700 (LWP 11927)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b111adb9d4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b111adb980, cond=0x55b111adb9a8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b111adb9a8, mutex=0x55b111adb980) at pthread_cond_wait.c:638
#3  0x00007f290de74ceb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55b111adb980) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x55b111d22df8, mutex=mutex@entry=0x55b111d22df0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f290fc08774 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55b111d22de8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55b111d22d50) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f290fc08be9 in QSGRenderThread::run() (this=0x55b111d22d50) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b111d22d50) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f28e7fff700 (LWP 11924)):
#0  __GI___libc_read (nbytes=16, buf=0x7f28e7ffea90, fd=17) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=17, buf=buf@entry=0x7f28e7ffea90, nbytes=nbytes@entry=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f290c45f89f in read (__nbytes=16, __buf=0x7f28e7ffea90, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#3  g_wakeup_acknowledge (wakeup=0x7f28fc0039b0) at ../../../glib/gwakeup.c:210
#4  0x00007f290c416cfe in g_main_context_check (context=context@entry=0x7f28dc000c20, max_priority=2147483647, fds=fds@entry=0x7f28dc006340, n_fds=n_fds@entry=1) at ../../../glib/gmain.c:3825
#5  0x00007f290c417152 in g_main_context_iterate (context=context@entry=0x7f28dc000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4044
#6  0x00007f290c4172e3 in g_main_context_iteration (context=0x7f28dc000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#7  0x00007f290e0ad24b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f28dc000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#8  0x00007f290e05143b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f28e7ffeca0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#9  0x00007f290de6d982 in QThread::exec() (this=this@entry=0x55b111b0c410) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#10 0x00007f290fb4335a in QQuickPixmapReader::run() (this=0x55b111b0c410) at util/qquickpixmapcache.cpp:1024
#11 0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b111b0c410) at thread/qthread_unix.cpp:329
#12 0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f28f931c700 (LWP 11923)):
#0  __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:85
#1  0x00007f290dae1b13 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007f290c4171ae in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f28e000f940, timeout=<optimized out>, context=0x7f28e0014260) at ../../../glib/gmain.c:4346
#3  g_main_context_iterate (context=context@entry=0x7f28e0014260, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#4  0x00007f290c4172e3 in g_main_context_iteration (context=0x7f28e0014260, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#5  0x00007f290e0ad24b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f28e0010740, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f290e05143b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f28f931bce0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#7  0x00007f290de6d982 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b110f4c050) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f28fb7fe700 (LWP 11921)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b1112f1a2c) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b1112f19d8, cond=0x55b1112f1a00) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b1112f1a00, mutex=0x55b1112f19d8) at pthread_cond_wait.c:638
#3  0x00007f2901dd497b in cnd_wait (mtx=0x55b1112f19d8, cond=0x55b1112f1a00) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x55b1112f2f10) at ../src/util/u_queue.c:275
#5  0x00007f2901dd458b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f28fbfff700 (LWP 11920)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b1112f1a28) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b1112f19d8, cond=0x55b1112f1a00) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b1112f1a00, mutex=0x55b1112f19d8) at pthread_cond_wait.c:638
#3  0x00007f2901dd497b in cnd_wait (mtx=0x55b1112f19d8, cond=0x55b1112f1a00) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x55b1112f2ed0) at ../src/util/u_queue.c:275
#5  0x00007f2901dd458b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f2900f17700 (LWP 11919)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b1112f1a2c) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b1112f19d8, cond=0x55b1112f1a00) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b1112f1a00, mutex=0x55b1112f19d8) at pthread_cond_wait.c:638
#3  0x00007f2901dd497b in cnd_wait (mtx=0x55b1112f19d8, cond=0x55b1112f1a00) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x55b1112f2cc0) at ../src/util/u_queue.c:275
#5  0x00007f2901dd458b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f2901718700 (LWP 11918)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b1112f1a28) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b1112f19d8, cond=0x55b1112f1a00) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b1112f1a00, mutex=0x55b1112f19d8) at pthread_cond_wait.c:638
#3  0x00007f2901dd497b in cnd_wait (mtx=0x55b1112f19d8, cond=0x55b1112f1a00) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x55b1112f2ab0) at ../src/util/u_queue.c:275
#5  0x00007f2901dd458b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f29088ff700 (LWP 11875)):
#0  0x00007f290de6f040 in QMutex::lock() (this=this@entry=0x55b110e6dce0) at /usr/include/c++/9/bits/atomic_base.h:769
#1  0x00007f290e0ad142 in QMutexLocker::QMutexLocker(QBasicMutex*) (m=0x55b110e6dce0, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:233
#2  QThreadData::canWaitLocked() (this=0x55b110e6dcb0) at ../../include/QtCore/5.15.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:272
#3  postEventSourcePrepare(GSource*, gint*) (s=0x7f28fc004bb0, timeout=timeout@entry=0x7f29088feaf4) at kernel/qeventdispatcher_glib.cpp:260
#4  0x00007f290c41672f in g_main_context_prepare (context=context@entry=0x7f28fc000c20, priority=priority@entry=0x7f29088feb80) at ../../../glib/gmain.c:3619
#5  0x00007f290c4170db in g_main_context_iterate (context=context@entry=0x7f28fc000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4027
#6  0x00007f290c4172e3 in g_main_context_iteration (context=0x7f28fc000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#7  0x00007f290e0ad24b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f28fc000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#8  0x00007f290e05143b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f29088fecc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#9  0x00007f290de6d982 in QThread::exec() (this=this@entry=0x55b110e6daf0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#10 0x00007f290f73fd69 in QQmlThreadPrivate::run() (this=0x55b110e6daf0) at qml/ftw/qqmlthread.cpp:155
#11 0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b110e6daf0) at thread/qthread_unix.cpp:329
#12 0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f290918c700 (LWP 11781)):
#0  g_mutex_unlock (mutex=0x7f2904000c20) at ../../../glib/gthread-posix.c:1493
#1  0x00007f290c416bd9 in g_main_context_check (context=context@entry=0x7f2904000c20, max_priority=2147483647, fds=fds@entry=0x7f2904005240, n_fds=n_fds@entry=1) at ../../../glib/gmain.c:3878
#2  0x00007f290c417152 in g_main_context_iterate (context=context@entry=0x7f2904000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4044
#3  0x00007f290c4172e3 in g_main_context_iteration (context=0x7f2904000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f290e0ad24b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2904000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f290e05143b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f290918bcb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f290de6d982 in QThread::exec() (this=this@entry=0x7f290ea56d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f290e9d2f4b in QDBusConnectionManager::run() (this=0x7f290ea56d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x7f290ea56d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f2909d492c0 (LWP 11749)):
[KCrash Handler]
#6  0x00007f290bfadcf4 in QWaylandClientExtensionPrivate::handleRegistryGlobal(void*, wl_registry*, unsigned int, QString const&, unsigned int) (data=0x55b11eed1a60, registry=0x55b110b91130, id=45, interface=..., version=1) at global/qwaylandclientextension.cpp:67
#7  0x00007f290bf8a182 in QtWaylandClient::QWaylandDisplay::registry_global(unsigned int, QString const&, unsigned int) (this=<optimized out>, id=45, interface=..., version=1) at qwaylanddisplay.cpp:364
#8  0x00007f290bfb8276 in QtWayland::wl_registry::handle_global(void*, wl_registry*, unsigned int, char const*, unsigned int) (data=0x55b110b8de20, object=<optimized out>, name=45, interface=0x55b11c2b5d60 "org_kde_kwin_blur_manager", version=1) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qarraydata.h:236
#9  0x00007f290c3bdff5 in  () at /lib/x86_64-linux-gnu/libffi.so.7
#10 0x00007f290c3bd40a in  () at /lib/x86_64-linux-gnu/libffi.so.7
#11 0x00007f290d9053a8 in  () at /lib/x86_64-linux-gnu/libwayland-client.so.0
#12 0x00007f290d901c48 in  () at /lib/x86_64-linux-gnu/libwayland-client.so.0
#13 0x00007f290d90321c in wl_display_dispatch_queue_pending () at /lib/x86_64-linux-gnu/libwayland-client.so.0
#14 0x00007f290bf89452 in QtWaylandClient::QWaylandDisplay::flushRequests() (this=0x55b110b8de10) at qwaylanddisplay.cpp:221
#15 0x00007f290e089980 in doActivate<false>(QObject*, int, void**) (sender=0x55b110c02530, signal_index=3, argv=0x7ffe6492f6d0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:395
#16 0x00007f290e082d17 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x55b110c02530, m=m@entry=0x7f290e2eab60 <QSocketNotifier::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffe6492f6d0) at kernel/qobject.cpp:3946
#17 0x00007f290e08d9c3 in QSocketNotifier::activated(QSocketDescriptor, QSocketNotifier::Type, QSocketNotifier::QPrivateSignal) (this=this@entry=0x55b110c02530, _t1=..., _t2=<optimized out>, _t3=...) at .moc/moc_qsocketnotifier.cpp:178
#18 0x00007f290e08e163 in QSocketNotifier::event(QEvent*) (this=0x55b110c02530, e=0x7ffe6492f9a0) at kernel/qsocketnotifier.cpp:302
#19 0x00007f290ed4ada3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x55b110b8af30, receiver=receiver@entry=0x55b110c02530, e=e@entry=0x7ffe6492f9a0) at kernel/qapplication.cpp:3630
#20 0x00007f290ed53b98 in QApplication::notify(QObject*, QEvent*) (this=0x7ffe6492fd00, receiver=0x55b110c02530, e=0x7ffe6492f9a0) at kernel/qapplication.cpp:3154
#21 0x00007f290e05292a in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55b110c02530, event=0x7ffe6492f9a0) at ../../include/QtCore/5.15.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#22 0x00007f290e0ade35 in socketNotifierSourceDispatch(GSource*, GSourceFunc, gpointer) (source=0x55b110bb8b60) at kernel/qeventdispatcher_glib.cpp:107
#23 0x00007f290c416fbd in g_main_dispatch (context=0x55b110bc6450) at ../../../glib/gmain.c:3309
#24 g_main_context_dispatch (context=context@entry=0x55b110bc6450) at ../../../glib/gmain.c:3974
#25 0x00007f290c417240 in g_main_context_iterate (context=context@entry=0x55b110bc6450, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4047
#26 0x00007f290c4172e3 in g_main_context_iteration (context=0x55b110bc6450, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#27 0x00007f290e0ad232 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55b110c02880, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#28 0x00007f290e05143b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffe6492fbb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#29 0x00007f290e0595e4 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#30 0x000055b10f2cec6c in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:252
[Inferior 1 (process 11749) detached]
Comment 1 Patrick Silva 2020-11-19 11:02:57 UTC 
backtrace with more debug symbols:

Undefined command: "therad".  Try "help".

Thread 20 (Thread 0x7f290918c700 (LWP 11781)):
#0  0x00007f290e0acadd in QElapsedTimer::isMonotonic() () at kernel/qelapsedtimer_unix.cpp:155
#1  0x00007f290e0ab923 in QTimerInfoList::repairTimersIfNeeded() (this=0x7f2904005130) at kernel/qtimerinfo_unix.cpp:162
#2  0x00007f290e0ab997 in QTimerInfoList::timerWait(timespec&) (this=0x7f2904005130, tm=...) at kernel/qtimerinfo_unix.cpp:389
#3  0x00007f290e0acfa6 in timerSourcePrepareHelper (timeout=0x7f290918bae4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:162
#4  timerSourcePrepare(GSource*, gint*) (source=<optimized out>, timeout=timeout@entry=0x7f290918bae4) at kernel/qeventdispatcher_glib.cpp:166
#5  0x00007f290c41672f in g_main_context_prepare (context=context@entry=0x7f2904000c20, priority=priority@entry=0x7f290918bb70) at ../../../glib/gmain.c:3619
#6  0x00007f290c4170db in g_main_context_iterate (context=context@entry=0x7f2904000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4027
#7  0x00007f290c4172e3 in g_main_context_iteration (context=0x7f2904000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#8  0x00007f290e0ad24b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2904000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#9  0x00007f290e05143b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f290918bcb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#10 0x00007f290de6d982 in QThread::exec() (this=this@entry=0x7f290ea56d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#11 0x00007f290e9d2f4b in QDBusConnectionManager::run() (this=0x7f290ea56d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
#12 0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x7f290ea56d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:329
#13 0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#14 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f28d0b50700 (LWP 11933)):
#0  __GI___libc_read (nbytes=16, buf=0x7f28d0b4fad0, fd=33) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=33, buf=buf@entry=0x7f28d0b4fad0, nbytes=nbytes@entry=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f290c45f89f in read (__nbytes=16, __buf=0x7f28d0b4fad0, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#3  g_wakeup_acknowledge (wakeup=0x7f28c0003510) at ../../../glib/gwakeup.c:210
#4  0x00007f290c416cfe in g_main_context_check (context=context@entry=0x7f28b4000c20, max_priority=2147483647, fds=fds@entry=0x7f28b4004c30, n_fds=n_fds@entry=1) at ../../../glib/gmain.c:3825
#5  0x00007f290c417152 in g_main_context_iterate (context=context@entry=0x7f28b4000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4044
#6  0x00007f290c4172e3 in g_main_context_iteration (context=0x7f28b4000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#7  0x00007f290e0ad24b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f28b4000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#8  0x00007f290e05143b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f28d0b4fce0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#9  0x00007f290de6d982 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#10 0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b11512bfb0) at thread/qthread_unix.cpp:329
#11 0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f28d25b0700 (LWP 11932)):
#0  0x00007f290dae1aff in __GI___poll (fds=0x7f28c0004a60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f290c4171ae in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f28c0004a60, timeout=<optimized out>, context=0x7f28c0000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f28c0000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f290c4172e3 in g_main_context_iteration (context=0x7f28c0000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f290e0ad24b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f28c0000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f290e05143b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f28d25afce0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f290de6d982 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b114c63f70) at thread/qthread_unix.cpp:329
#8  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f28c8a4c700 (LWP 14026)):
#0  __GI___libc_read (nbytes=10, buf=0x7f28c8a4bb1e, fd=49) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=fd@entry=49, buf=buf@entry=0x7f28c8a4bb1e, nbytes=nbytes@entry=10) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f28e4c64955 in read (__nbytes=10, __buf=0x7f28c8a4bb1e, __fd=49) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#3  pa_read (fd=49, buf=buf@entry=0x7f28c8a4bb1e, count=count@entry=10, type=type@entry=0x55b11c08c838) at pulsecore/core-util.c:422
#4  0x00007f28e4f27416 in clear_wakeup (m=<optimized out>) at pulse/mainloop.c:782
#5  pa_mainloop_prepare (m=m@entry=0x55b11c08c760, timeout=-1) at pulse/mainloop.c:789
#6  0x00007f28e4f27eb4 in pa_mainloop_iterate (m=0x55b11c08c760, block=<optimized out>, retval=0x0) at pulse/mainloop.c:923
#7  0x00007f28e4f27f70 in pa_mainloop_run (m=0x55b11c08c760, retval=retval@entry=0x0) at pulse/mainloop.c:945
#8  0x00007f28e4f3611d in thread (userdata=0x55b1165e0950) at pulse/thread-mainloop.c:101
#9  0x00007f28e4c9367c in internal_thread_func (userdata=0x55b11c29c580) at pulsecore/thread-posix.c:81
#10 0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f28e7fff700 (LWP 11924)):
#0  0x00007f290dae1aff in __GI___poll (fds=0x7f28dc006340, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f290c4171ae in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f28dc006340, timeout=<optimized out>, context=0x7f28dc000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f28dc000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f290c4172e3 in g_main_context_iteration (context=0x7f28dc000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f290e0ad24b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f28dc000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f290e05143b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f28e7ffeca0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f290de6d982 in QThread::exec() (this=this@entry=0x55b111b0c410) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f290fb4335a in QQuickPixmapReader::run() (this=0x55b111b0c410) at util/qquickpixmapcache.cpp:1024
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b111b0c410) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f289dfbc700 (LWP 17908)):
#0  0x00007f290da47408 in __vfprintf_internal (s=s@entry=0x7f289dfbb4f0, format=format@entry=0x7f28f854b19d "[%s:%i %s()]", ap=ap@entry=0x7f289dfbb670, mode_flags=mode_flags@entry=2) at vfprintf-internal.c:1687
#1  0x00007f290da5b11a in __vsnprintf_internal (string=0x7f289dfbb7ac "[data-loop.c:82 do_loop()] data-loop 0x55b11bf7e6a0: iterate error -9 (Bad file descriptor)\033[0m\n", maxlen=<optimized out>, maxlen@entry=996, format=0x7f28f854b19d "[%s:%i %s()]", args=args@entry=0x7f289dfbb670, mode_flags=mode_flags@entry=2) at vsnprintf.c:114
#2  0x00007f290dafcfd1 in ___snprintf_chk (s=s@entry=0x7f289dfbb7ac "[data-loop.c:82 do_loop()] data-loop 0x55b11bf7e6a0: iterate error -9 (Bad file descriptor)\033[0m\n", maxlen=maxlen@entry=996, flag=flag@entry=1, slen=slen@entry=18446744073709551615, format=format@entry=0x7f28f854b19d "[%s:%i %s()]") at snprintf_chk.c:38
#3  0x00007f28f853c2e6 in snprintf (__fmt=0x7f28f854b19d "[%s:%i %s()]", __n=996, __s=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/stdio2.h:67
#4  impl_log_logv (object=0x7f28fc4e6bc8, level=<optimized out>, file=<optimized out>, line=82, func=0x7f28e513bc58 "do_loop", fmt=0x7f28e513bb88 "data-loop %p: iterate error %d (%s)", args=0x7f289dfbbbf0) at ../spa/plugins/support/logger.c:111
#5  0x00007f28e5113da0 in pw_log_log () at /lib/x86_64-linux-gnu/libpipewire-0.3.so.0
#6  0x00007f28e51004ae in  () at /lib/x86_64-linux-gnu/libpipewire-0.3.so.0
#7  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f2901718700 (LWP 11918)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b1112f1a28) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b1112f19d8, cond=0x55b1112f1a00) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b1112f1a00, mutex=0x55b1112f19d8) at pthread_cond_wait.c:638
#3  0x00007f2901dd497b in cnd_wait (mtx=0x55b1112f19d8, cond=0x55b1112f1a00) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x55b1112f2ab0) at ../src/util/u_queue.c:275
#5  0x00007f2901dd458b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f289e7bd700 (LWP 14788)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b122010b24) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b122010ad0, cond=0x55b122010af8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b122010af8, mutex=0x55b122010ad0) at pthread_cond_wait.c:638
#3  0x00007f290de74ceb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55b122010ad0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x55b11c0353e8, mutex=mutex@entry=0x55b11c0353e0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f290fc08774 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55b11c0353d8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55b11c035340) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f290fc08be9 in QSGRenderThread::run() (this=0x55b11c035340) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b11c035340) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f289ffff700 (LWP 12988)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b111cba6c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b111cba670, cond=0x55b111cba698) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b111cba698, mutex=0x55b111cba670) at pthread_cond_wait.c:638
#3  0x00007f290de74ceb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55b111cba670) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x55b1157b3748, mutex=mutex@entry=0x55b1157b3740, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f290fc08774 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55b1157b3738) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55b1157b36a0) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f290fc08be9 in QSGRenderThread::run() (this=0x55b1157b36a0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b1157b36a0) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f2900f17700 (LWP 11919)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b1112f1a2c) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b1112f19d8, cond=0x55b1112f1a00) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b1112f1a00, mutex=0x55b1112f19d8) at pthread_cond_wait.c:638
#3  0x00007f2901dd497b in cnd_wait (mtx=0x55b1112f19d8, cond=0x55b1112f1a00) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x55b1112f2cc0) at ../src/util/u_queue.c:275
#5  0x00007f2901dd458b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f289f7fe700 (LWP 14139)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b1220ca2f0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b1220ca2a0, cond=0x55b1220ca2c8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b1220ca2c8, mutex=0x55b1220ca2a0) at pthread_cond_wait.c:638
#3  0x00007f290de74ceb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55b1220ca2a0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x55b122090de8, mutex=mutex@entry=0x55b122090de0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f290fc08774 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55b122090dd8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55b122090d40) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f290fc08be9 in QSGRenderThread::run() (this=0x55b122090d40) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b122090d40) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f28c9ded700 (LWP 11963)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b119468be4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b119468b90, cond=0x55b119468bb8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b119468bb8, mutex=0x55b119468b90) at pthread_cond_wait.c:638
#3  0x00007f290de74ceb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55b119468b90) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x55b119467a38, mutex=mutex@entry=0x55b119467a30, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f290fc08774 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55b119467a28) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55b119467990) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f290fc08be9 in QSGRenderThread::run() (this=0x55b119467990) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b119467990) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f28fb7fe700 (LWP 11921)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b1112f1a2c) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b1112f19d8, cond=0x55b1112f1a00) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b1112f1a00, mutex=0x55b1112f19d8) at pthread_cond_wait.c:638
#3  0x00007f2901dd497b in cnd_wait (mtx=0x55b1112f19d8, cond=0x55b1112f1a00) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x55b1112f2f10) at ../src/util/u_queue.c:275
#5  0x00007f2901dd458b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f28d3e7d700 (LWP 14027)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f28c4014120) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f28c40140d0, cond=0x7f28c40140f8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f28c40140f8, mutex=0x7f28c40140d0) at pthread_cond_wait.c:638
#3  0x00007f290de74ceb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x7f28c40140d0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x7f2904065bc8, mutex=mutex@entry=0x7f2904065bc0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f290fc08774 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x7f2904065bb8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x7f2904065b20) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f290fc08be9 in QSGRenderThread::run() (this=0x7f2904065b20) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x7f2904065b20) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f28ca9ee700 (LWP 11937)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b116640f00) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b116640eb0, cond=0x55b116640ed8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b116640ed8, mutex=0x55b116640eb0) at pthread_cond_wait.c:638
#3  0x00007f290de74ceb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55b116640eb0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x55b11663fc58, mutex=mutex@entry=0x55b11663fc50, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f290fc08774 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55b11663fc48) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55b11663fbb0) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f290fc08be9 in QSGRenderThread::run() (this=0x55b11663fbb0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b11663fbb0) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f28fbfff700 (LWP 11920)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b1112f1a28) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b1112f19d8, cond=0x55b1112f1a00) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b1112f1a00, mutex=0x55b1112f19d8) at pthread_cond_wait.c:638
#3  0x00007f2901dd497b in cnd_wait (mtx=0x55b1112f19d8, cond=0x55b1112f1a00) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x55b1112f2ed0) at ../src/util/u_queue.c:275
#5  0x00007f2901dd458b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f28f931c700 (LWP 11923)):
#0  0x00007f290daac25c in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7f28f931ba50) at ../sysdeps/unix/sysv/linux/clock_gettime.c:38
#1  0x00007f290e0acb15 in qt_clock_gettime (ts=0x7f28f931ba50, clock=1) at kernel/qelapsedtimer_unix.cpp:175
#2  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#3  qt_gettime() () at kernel/qelapsedtimer_unix.cpp:175
#4  0x00007f290e0ab3ad in QTimerInfoList::updateCurrentTime() (this=this@entry=0x7f28e0003fb0) at kernel/qtimerinfo_unix.cpp:91
#5  0x00007f290e0ab989 in QTimerInfoList::timerWait(timespec&) (this=0x7f28e0003fb0, tm=...) at kernel/qtimerinfo_unix.cpp:388
#6  0x00007f290e0acfa6 in timerSourcePrepareHelper (timeout=0x7f28f931bb14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:162
#7  timerSourcePrepare(GSource*, gint*) (source=<optimized out>, timeout=timeout@entry=0x7f28f931bb14) at kernel/qeventdispatcher_glib.cpp:166
#8  0x00007f290c41672f in g_main_context_prepare (context=context@entry=0x7f28e0014260, priority=priority@entry=0x7f28f931bba0) at ../../../glib/gmain.c:3619
#9  0x00007f290c4170db in g_main_context_iterate (context=context@entry=0x7f28e0014260, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4027
#10 0x00007f290c4172e3 in g_main_context_iteration (context=0x7f28e0014260, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#11 0x00007f290e0ad24b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f28e0010740, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#12 0x00007f290e05143b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f28f931bce0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#13 0x00007f290de6d982 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#14 0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b110f4c050) at thread/qthread_unix.cpp:329
#15 0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#16 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f28e77fe700 (LWP 11927)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b111adb9d4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b111adb980, cond=0x55b111adb9a8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b111adb9a8, mutex=0x55b111adb980) at pthread_cond_wait.c:638
#3  0x00007f290de74ceb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55b111adb980) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x55b111d22df8, mutex=mutex@entry=0x55b111d22df0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f290fc08774 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55b111d22de8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55b111d22d50) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f290fc08be9 in QSGRenderThread::run() (this=0x55b111d22d50) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b111d22d50) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f29088ff700 (LWP 11875)):
#0  0x00007f290dae1aff in __GI___poll (fds=0x7f28fc004e60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f290c4171ae in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f28fc004e60, timeout=<optimized out>, context=0x7f28fc000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f28fc000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f290c4172e3 in g_main_context_iteration (context=0x7f28fc000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f290e0ad24b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f28fc000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f290e05143b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f29088fecc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f290de6d982 in QThread::exec() (this=this@entry=0x55b110e6daf0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f290f73fd69 in QQmlThreadPrivate::run() (this=0x55b110e6daf0) at qml/ftw/qqmlthread.cpp:155
#8  0x00007f290de6eb1c in QThreadPrivate::start(void*) (arg=0x55b110e6daf0) at thread/qthread_unix.cpp:329
#9  0x00007f290ced7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f290daee293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f2909d492c0 (LWP 11749)):
#0  __GI_raise (sig=sig@entry=11) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x00007f290f3daf5a in KCrash::defaultCrashHandler(int) (sig=11) at ./src/kcrash.cpp:555
#2  0x00007f290da12210 in <signal handler called> () at /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007f290bfadcf4 in QWaylandClientExtensionPrivate::handleRegistryGlobal(void*, wl_registry*, unsigned int, QString const&, unsigned int) (data=0x55b11eed1a60, registry=0x55b110b91130, id=45, interface=..., version=1) at global/qwaylandclientextension.cpp:67
#4  0x00007f290bf8a182 in QtWaylandClient::QWaylandDisplay::registry_global(unsigned int, QString const&, unsigned int) (this=<optimized out>, id=45, interface=..., version=1) at qwaylanddisplay.cpp:364
#5  0x00007f290bfb8276 in QtWayland::wl_registry::handle_global(void*, wl_registry*, unsigned int, char const*, unsigned int) (data=0x55b110b8de20, object=<optimized out>, name=45, interface=0x55b11c2b5d60 "org_kde_kwin_blur_manager", version=1) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qarraydata.h:236
#6  0x00007f290c3bdff5 in ffi_call_unix64 () at ../src/x86/unix64.S:101
#7  0x00007f290c3bd40a in ffi_call_int (cif=<optimized out>, fn=<optimized out>, rvalue=<optimized out>, avalue=<optimized out>, closure=<optimized out>) at ../src/x86/ffi64.c:669
#8  0x00007f290d9053a8 in wl_closure_invoke (closure=closure@entry=0x55b11c2b5c80, flags=flags@entry=1, target=<optimized out>, target@entry=0x55b110b91130, opcode=opcode@entry=0, data=<optimized out>) at ../src/connection.c:1018
#9  0x00007f290d901c48 in dispatch_event (display=display@entry=0x55b110b91c40, queue=<optimized out>) at ../src/wayland-client.c:1445
#10 0x00007f290d90321c in dispatch_queue (queue=0x55b110b91d10, display=0x55b110b91c40) at ../src/wayland-client.c:1591
#11 wl_display_dispatch_queue_pending (display=0x55b110b91c40, queue=0x55b110b91d10) at ../src/wayland-client.c:1833
#12 0x00007f290d903280 in wl_display_dispatch_pending (display=<optimized out>) at ../src/wayland-client.c:1896
#13 0x00007f290bf89452 in QtWaylandClient::QWaylandDisplay::flushRequests() (this=0x55b110b8de10) at qwaylanddisplay.cpp:221
#14 0x00007f290e089980 in doActivate<false>(QObject*, int, void**) (sender=0x55b110c02530, signal_index=3, argv=0x7ffe6492f6d0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:395
#15 0x00007f290e082d17 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x55b110c02530, m=m@entry=0x7f290e2eab60 <QSocketNotifier::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffe6492f6d0) at kernel/qobject.cpp:3946
#16 0x00007f290e08d9c3 in QSocketNotifier::activated(QSocketDescriptor, QSocketNotifier::Type, QSocketNotifier::QPrivateSignal) (this=this@entry=0x55b110c02530, _t1=..., _t2=<optimized out>, _t3=...) at .moc/moc_qsocketnotifier.cpp:178
#17 0x00007f290e08e163 in QSocketNotifier::event(QEvent*) (this=0x55b110c02530, e=0x7ffe6492f9a0) at kernel/qsocketnotifier.cpp:302
#18 0x00007f290ed4ada3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x55b110b8af30, receiver=receiver@entry=0x55b110c02530, e=e@entry=0x7ffe6492f9a0) at kernel/qapplication.cpp:3630
#19 0x00007f290ed53b98 in QApplication::notify(QObject*, QEvent*) (this=0x7ffe6492fd00, receiver=0x55b110c02530, e=0x7ffe6492f9a0) at kernel/qapplication.cpp:3154
#20 0x00007f290e05292a in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55b110c02530, event=0x7ffe6492f9a0) at ../../include/QtCore/5.15.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#21 0x00007f290e0ade35 in socketNotifierSourceDispatch(GSource*, GSourceFunc, gpointer) (source=0x55b110bb8b60) at kernel/qeventdispatcher_glib.cpp:107
#22 0x00007f290c416fbd in g_main_dispatch (context=0x55b110bc6450) at ../../../glib/gmain.c:3309
#23 g_main_context_dispatch (context=context@entry=0x55b110bc6450) at ../../../glib/gmain.c:3974
#24 0x00007f290c417240 in g_main_context_iterate (context=context@entry=0x55b110bc6450, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4047
#25 0x00007f290c4172e3 in g_main_context_iteration (context=0x55b110bc6450, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#26 0x00007f290e0ad232 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55b110c02880, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#27 0x00007f290e05143b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffe6492fbb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#28 0x00007f290e0595e4 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#29 0x000055b10f2cec6c in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:252
Comment 2 Nate Graham 2021-02-23 05:59:59 UTC 
#8  0x00007f290bfb8276 in QtWayland::wl_registry::handle_global(void*, wl_registry*, unsigned int, char const*, unsigned int) (data=0x55b110b8de20, object=<optimized out>, name=45, interface=0x55b11c2b5d60 "org_kde_kwin_blur_manager", version=1) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qarraydata.h:236

Same root cause as Bug 414834.

*** This bug has been marked as a duplicate of bug 414834 ***
Comment 3 Nate Graham 2021-02-23 06:04:40 UTC 
#8  0x00007f290bfb8276 in QtWayland::wl_registry::handle_global(void*, wl_registry*, unsigned int, char const*, unsigned int) (data=0x55b110b8de20, object=<optimized out>, name=45, interface=0x55b11c2b5d60 "org_kde_kwin_blur_manager", version=1) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qarraydata.h:236

Same root cause as Bug 414834.