Bug 430110

Summary: Plasma crashes due to libpipewire
Product: [KDE Neon] neon Reporter: Loren <lordman1982>
Component: Packages User EditionAssignee: Neon Bugs <neon-bugs-null>
Status: RESOLVED FIXED    
Severity: crash CC: jr, lordman1982, meven.car, nate, neon-bugs-null, plasma-bugs-null, sitter
Priority: NOR Keywords: drkonqi
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi

Description Loren 2020-12-07 13:54:43 UTC 
Application: plasmashell (5.20.4)

Qt Version: 5.15.1
Frameworks Version: 5.76.0
Operating System: Linux 5.4.0-56-generic x86_64
Windowing system: Wayland
Distribution: KDE neon User Edition 5.20

-- Information about the crash:
- What I was doing when the application crashed:

I was moving back to Konsole after having executed the "sudo apt update" command.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault

[New LWP 1801]
[New LWP 1915]
[New LWP 1951]
[New LWP 1952]
[New LWP 1953]
[New LWP 1954]
[New LWP 1999]
[New LWP 2006]
[New LWP 2121]
[New LWP 2141]
[New LWP 2181]
[New LWP 2192]
[New LWP 4485]
[New LWP 4494]
[New LWP 4554]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f25b2423aff in __GI___poll (fds=0x7ffe7cd76fe8, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7f25ae8ccd00 (LWP 1771))]

Thread 16 (Thread 0x7f253d2c6700 (LWP 4554)):
#0  __libc_sendmsg (flags=16384, msg=0x7f253d2c5110, fd=4) at ../sysdeps/unix/sysv/linux/sendmsg.c:28
#1  __libc_sendmsg (fd=4, msg=0x7f253d2c5110, flags=16384) at ../sysdeps/unix/sysv/linux/sendmsg.c:25
#2  0x00007f25b0914fb7 in sd_journal_sendv () from /lib/x86_64-linux-gnu/libsystemd.so.0
#3  0x00007f25b09158cf in sd_journal_send_with_location () from /lib/x86_64-linux-gnu/libsystemd.so.0
#4  0x00007f257935c42a in ?? () from /usr/lib/x86_64-linux-gnu/spa-0.2/support/libspa-journal.so
#5  0x00007f25792e1200 in pw_log_log (level=level@entry=SPA_LOG_LEVEL_ERROR, file=file@entry=0x7f2579309a81 "../src/pipewire/data-loop.c", line=line@entry=82, func=func@entry=0x7f2579309c58 <__func__.9846> "do_loop", fmt=fmt@entry=0x7f2579309b88 "data-loop %p: iterate error %d (%s)") at ../src/pipewire/log.c:102
#6  0x00007f25792cd72e in do_loop (user_data=0x55c3152ef270) at ../src/pipewire/data-loop.c:82
#7  0x00007f25b1821609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f25b2430293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f253dac7700 (LWP 4494)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c3153ad710) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c3153ad6c0, cond=0x55c3153ad6e8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55c3153ad6e8, mutex=0x55c3153ad6c0) at pthread_cond_wait.c:638
#3  0x00007f25b27b6ceb in QWaitConditionPrivate::wait (deadline=..., this=0x55c3153ad6c0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x55c3153ad6a8, mutex=mutex@entry=0x55c3153ad6a0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f25b4547774 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55c3153ad698) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55c3153ad600) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f25b4547be9 in QSGRenderThread::run (this=0x55c3153ad600) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f25b27b0b1c in QThreadPrivate::start (arg=0x55c3153ad600) at thread/qthread_unix.cpp:329
#9  0x00007f25b1821609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f25b2430293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f2573e86700 (LWP 4485)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c315466754) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c315466700, cond=0x55c315466728) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55c315466728, mutex=0x55c315466700) at pthread_cond_wait.c:638
#3  0x00007f25b27b6ceb in QWaitConditionPrivate::wait (deadline=..., this=0x55c315466700) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x55c316241e68, mutex=mutex@entry=0x55c316241e60, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f25b4547774 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55c316241e58) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55c316241dc0) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f25b4547be9 in QSGRenderThread::run (this=0x55c316241dc0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f25b27b0b1c in QThreadPrivate::start (arg=0x55c316241dc0) at thread/qthread_unix.cpp:329
#9  0x00007f25b1821609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f25b2430293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f253ffff700 (LWP 2192)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c316501510) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c3165014c0, cond=0x55c3165014e8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55c3165014e8, mutex=0x55c3165014c0) at pthread_cond_wait.c:638
#3  0x00007f25b27b6ceb in QWaitConditionPrivate::wait (deadline=..., this=0x55c3165014c0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x55c315f02738, mutex=mutex@entry=0x55c315f02730, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f25b4547774 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55c315f02728) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55c315f02690) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f25b4547be9 in QSGRenderThread::run (this=0x55c315f02690) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f25b27b0b1c in QThreadPrivate::start (arg=0x55c315f02690) at thread/qthread_unix.cpp:329
#9  0x00007f25b1821609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f25b2430293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f255b820700 (LWP 2181)):
#0  0x00007f25b0dae33d in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f25b0d610b0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f25b0d612e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f25b29ef24b in QEventDispatcherGlib::processEvents (this=0x7f2550000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f25b299343b in QEventLoop::exec (this=this@entry=0x7f255b81fd20, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f25b27af982 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f25b27b0b1c in QThreadPrivate::start (arg=0x55c315b886b0) at thread/qthread_unix.cpp:329
#7  0x00007f25b1821609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f25b2430293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f2570af4700 (LWP 2141)):
#0  0x00007f25b2423aff in __GI___poll (fds=0x7f2554005070, nfds=1, timeout=2002672) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f25b0d611ae in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f25b0d612e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f25b29ef24b in QEventDispatcherGlib::processEvents (this=0x7f2554000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f25b299343b in QEventLoop::exec (this=this@entry=0x7f2570af3ce0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f25b27af982 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f2570fec07c in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f25b27b0b1c in QThreadPrivate::start (arg=0x55c3158afba0) at thread/qthread_unix.cpp:329
#8  0x00007f25b1821609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f25b2430293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f2571e82700 (LWP 2121)):
#0  0x00007f25b0dae368 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f25b0d60d7d in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f25b0d61240 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f25b0d612e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f25b29ef24b in QEventDispatcherGlib::processEvents (this=0x7f2560000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f25b299343b in QEventLoop::exec (this=this@entry=0x7f2571e81d20, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f25b27af982 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f25b27b0b1c in QThreadPrivate::start (arg=0x55c3153fbc60) at thread/qthread_unix.cpp:329
#8  0x00007f25b1821609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f25b2430293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f2591aec700 (LWP 2006)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c314492844) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c3144927f0, cond=0x55c314492818) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55c314492818, mutex=0x55c3144927f0) at pthread_cond_wait.c:638
#3  0x00007f25b27b6ceb in QWaitConditionPrivate::wait (deadline=..., this=0x55c3144927f0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x7f257c0117a8, mutex=mutex@entry=0x7f257c0117a0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f25b4547774 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x7f257c011798) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x7f257c011700) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f25b4547be9 in QSGRenderThread::run (this=0x7f257c011700) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f25b27b0b1c in QThreadPrivate::start (arg=0x7f257c011700) at thread/qthread_unix.cpp:329
#9  0x00007f25b1821609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f25b2430293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f2593241700 (LWP 1999)):
#0  __GI___libc_read (nbytes=16, buf=0x7f2593240ad0, fd=15) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=15, buf=0x7f2593240ad0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f25b0da989f in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f25b0d60cfe in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f25b0d61152 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f25b0d612e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f25b29ef24b in QEventDispatcherGlib::processEvents (this=0x7f257c00f0d0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f25b299343b in QEventLoop::exec (this=this@entry=0x7f2593240ce0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#8  0x00007f25b27af982 in QThread::exec (this=this@entry=0x55c314d0c8f0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#9  0x00007f25b448235a in QQuickPixmapReader::run (this=0x55c314d0c8f0) at util/qquickpixmapcache.cpp:1024
#10 0x00007f25b27b0b1c in QThreadPrivate::start (arg=0x55c314d0c8f0) at thread/qthread_unix.cpp:329
#11 0x00007f25b1821609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f25b2430293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f2599aec700 (LWP 1954)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c3147fe558) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c3147fe508, cond=0x55c3147fe530) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55c3147fe530, mutex=0x55c3147fe508) at pthread_cond_wait.c:638
#3  0x00007f259edfe62b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f259edfe23b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f25b1821609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f25b2430293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f259a2ed700 (LWP 1953)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c3147fe558) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c3147fe508, cond=0x55c3147fe530) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55c3147fe530, mutex=0x55c3147fe508) at pthread_cond_wait.c:638
#3  0x00007f259edfe62b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f259edfe23b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f25b1821609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f25b2430293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f25922ed700 (LWP 1952)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c3147fe558) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c3147fe508, cond=0x55c3147fe530) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55c3147fe530, mutex=0x55c3147fe508) at pthread_cond_wait.c:638
#3  0x00007f259edfe62b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f259edfe23b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f25b1821609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f25b2430293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f25a4a73700 (LWP 1951)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c3147fe558) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c3147fe508, cond=0x55c3147fe530) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55c3147fe530, mutex=0x55c3147fe508) at pthread_cond_wait.c:638
#3  0x00007f259edfe62b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f259edfe23b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f25b1821609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f25b2430293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f25a7fff700 (LWP 1915)):
#0  0x00007f25b2423aff in __GI___poll (fds=0x7f25a0004e60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f25b0d611ae in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f25b0d612e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f25b29ef24b in QEventDispatcherGlib::processEvents (this=0x7f25a0000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f25b299343b in QEventLoop::exec (this=this@entry=0x7f25a7ffed00, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f25b27af982 in QThread::exec (this=this@entry=0x55c3144518f0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f25b407cd69 in QQmlThreadPrivate::run (this=0x55c3144518f0) at qml/ftw/qqmlthread.cpp:155
#7  0x00007f25b27b0b1c in QThreadPrivate::start (arg=0x55c3144518f0) at thread/qthread_unix.cpp:329
#8  0x00007f25b1821609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f25b2430293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f25ad86d700 (LWP 1801)):
#0  0x00007f25b2423aff in __GI___poll (fds=0x7f25a8005240, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f25b0d611ae in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f25b0d612e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f25b29ef24b in QEventDispatcherGlib::processEvents (this=0x7f25a8000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f25b299343b in QEventLoop::exec (this=this@entry=0x7f25ad86ccf0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f25b27af982 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f25b3314f4b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f25b27b0b1c in QThreadPrivate::start (arg=0x7f25b3398d80) at thread/qthread_unix.cpp:329
#8  0x00007f25b1821609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f25b2430293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f25ae8ccd00 (LWP 1771)):
[KCrash Handler]
#4  spa_hook_remove (hook=0x55c31541cd78) at ../spa/include/spa/utils/hook.h:112
#5  spa_hook_list_clean (list=0x55c315377a58) at ../spa/include/spa/utils/hook.h:119
#6  pw_proxy_destroy (proxy=proxy@entry=0x55c315377a00) at ../src/pipewire/proxy.c:261
#7  0x00007f25792cd354 in pw_core_disconnect (core=0x55c315377a00) at ../src/pipewire/core.c:496
#8  0x00007f257936fc09 in PipeWireCore::~PipeWireCore (this=0x55c31541cd50, __in_chrg=<optimized out>) at ./libtaskmanager/declarative/pipewirecore.cpp:53
#9  0x00007f257936fc7d in PipeWireCore::~PipeWireCore (this=0x55c31541cd50, __in_chrg=<optimized out>) at ./libtaskmanager/declarative/pipewirecore.cpp:46
#10 0x00007f2579376f63 in QtSharedPointer::ExternalRefCountData::destroy (this=0x55c3167d15b0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qsharedpointer_impl.h:149
#11 QSharedPointer<PipeWireCore>::deref (dd=0x55c3167d15b0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qsharedpointer_impl.h:458
#12 QSharedPointer<PipeWireCore>::deref (dd=0x55c3167d15b0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qsharedpointer_impl.h:454
#13 QSharedPointer<PipeWireCore>::deref (this=0x55c3152ef4a0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qsharedpointer_impl.h:453
#14 QSharedPointer<PipeWireCore>::~QSharedPointer (this=0x55c3152ef4a0, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qsharedpointer_impl.h:310
#15 PipeWireSourceStream::~PipeWireSourceStream (this=0x55c3152ef490, __in_chrg=<optimized out>) at ./libtaskmanager/declarative/pipewiresourcestream.cpp:109
#16 0x00007f2579376fcd in PipeWireSourceStream::~PipeWireSourceStream (this=0x55c3152ef490, __in_chrg=<optimized out>) at ./libtaskmanager/declarative/pipewiresourcestream.cpp:109
#17 0x00007f2579370953 in QScopedPointerDeleter<PipeWireSourceStream>::cleanup (pointer=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qscopedpointer.h:52
#18 QScopedPointer<PipeWireSourceStream, QScopedPointerDeleter<PipeWireSourceStream> >::reset (this=0x55c31686e748, other=0x0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qscopedpointer.h:159
#19 PipeWireSourceItem::setNodeId (this=0x55c31686e700, nodeId=0) at ./libtaskmanager/declarative/pipewiresourceitem.cpp:110
#20 0x00007f25b3fc3e51 in QQmlPropertyData::writeProperty (this=<optimized out>, target=<optimized out>, value=<optimized out>, flags=...) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmlpropertydata_p.h:375
#21 0x00007f25b3fbf76c in QQmlPropertyPrivate::write (object=object@entry=0x55c31686e700, property=..., value=..., context=context@entry=0x55c31546f6a0, flags=..., flags@entry=...) at qml/qqmlproperty.cpp:1301
#22 0x00007f25b3fc39d4 in QQmlPropertyPrivate::writeValueProperty (object=0x55c31686e700, core=..., valueTypeData=..., value=..., context=0x55c31546f6a0, flags=flags@entry=...) at qml/qqmlproperty.cpp:1214
#23 0x00007f25b4038a54 in QQmlBinding::slowWrite (this=this@entry=0x55c315461bf0, core=..., valueTypeData=..., result=..., isUndefined=isUndefined@entry=false, flags=..., flags@entry=...) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/ftw/qflagpointer_p.h:242
#24 0x00007f25b4039b80 in GenericBinding<0>::write (this=0x55c315461bf0, result=..., isUndefined=<optimized out>, flags=...) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/common/qv4staticvalue_p.h:316
#25 0x00007f25b403b1b3 in QQmlNonbindingBinding::doUpdate (this=0x55c315461bf0, watcher=..., flags=..., scope=...) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/jsruntime/qv4scopedvalue_p.h:242
#26 0x00007f25b4037f82 in QQmlBinding::update (this=0x55c315461bf0, flags=...) at qml/qqmlbinding.cpp:194
#27 0x00007f25b400f5fd in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x7ffe7cd79900) at qml/qqmlnotifier.cpp:104
#28 0x00007f25b3fb1f6f in QQmlData::signalEmitted (object=0x55c315471430, index=3, a=0x7ffe7cd79900) at qml/qqmlengine.cpp:834
#29 0x00007f25b29cb4d5 in doActivate<false> (sender=0x55c315471430, signal_index=3, argv=0x7ffe7cd79900) at kernel/qobject_p.h:110
#30 0x00007f25b29c4d17 in QMetaObject::activate (sender=sender@entry=0x55c315471430, m=m@entry=0x7f2579381320 <ScreencastingRequest::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffe7cd79900) at kernel/qobject.cpp:3946
#31 0x00007f257936b6d2 in ScreencastingRequest::nodeIdChanged (this=this@entry=0x55c315471430, _t1=<optimized out>, _t1@entry=0) at ./obj-x86_64-linux-gnu/libtaskmanager/declarative/taskmanagerplugin_autogen/EWIEGA46WW/moc_screencastingrequest.cpp:217
#32 0x00007f2579378f80 in ScreencastingRequest::setNodeid (nodeId=0, this=0x55c315471430) at ./libtaskmanager/declarative/screencastingrequest.cpp:100
#33 ScreencastingRequest::setUuid (this=0x55c315471430, uuid=...) at ./libtaskmanager/declarative/screencastingrequest.cpp:83
#34 0x00007f257936baf7 in ScreencastingRequest::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./obj-x86_64-linux-gnu/libtaskmanager/declarative/taskmanagerplugin_autogen/EWIEGA46WW/moc_screencastingrequest.cpp:148
#35 0x00007f25b3fc3e51 in QQmlPropertyData::writeProperty (this=<optimized out>, target=<optimized out>, value=<optimized out>, flags=...) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmlpropertydata_p.h:375
#36 0x00007f25b3fbf6bb in QQmlPropertyPrivate::write (object=object@entry=0x55c315471430, property=..., value=..., context=context@entry=0x55c31546f6a0, flags=..., flags@entry=...) at qml/qqmlproperty.cpp:1296
#37 0x00007f25b3fc39d4 in QQmlPropertyPrivate::writeValueProperty (object=0x55c315471430, core=..., valueTypeData=..., value=..., context=0x55c31546f6a0, flags=flags@entry=...) at qml/qqmlproperty.cpp:1214
#38 0x00007f25b4038a54 in QQmlBinding::slowWrite (this=this@entry=0x55c3154715d0, core=..., valueTypeData=..., result=..., isUndefined=isUndefined@entry=false, flags=..., flags@entry=...) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/ftw/qflagpointer_p.h:242
#39 0x00007f25b403a905 in GenericBinding<10>::write (this=0x55c3154715d0, result=..., isUndefined=<optimized out>, flags=...) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/common/qv4staticvalue_p.h:333
#40 0x00007f25b403b1b3 in QQmlNonbindingBinding::doUpdate (this=0x55c3154715d0, watcher=..., flags=..., scope=...) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/jsruntime/qv4scopedvalue_p.h:242
#41 0x00007f25b4037f82 in QQmlBinding::update (this=0x55c3154715d0, flags=...) at qml/qqmlbinding.cpp:194
#42 0x00007f25b400f5fd in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:104
#43 0x00007f25b3fb1f6f in QQmlData::signalEmitted (object=0x55c3162a8ad0, index=31, a=0x0) at qml/qqmlengine.cpp:834
#44 0x00007f25b29cb4d5 in doActivate<false> (sender=0x55c3162a8ad0, signal_index=31, argv=0x0) at kernel/qobject_p.h:110
#45 0x00007f25b3fad126 in QQmlVMEMetaObject::writeVarProperty(int, QV4::Value const&) () at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmlpropertycache_p.h:376
#46 0x00007f25b40383b5 in QQmlBinding::slowWrite (this=this@entry=0x55c316ac98d0, core=..., valueTypeData=..., result=..., isUndefined=isUndefined@entry=false, flags=..., flags@entry=...) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmlpropertydata_p.h:285
#47 0x00007f25b4039b80 in GenericBinding<0>::write (this=0x55c316ac98d0, result=..., isUndefined=<optimized out>, flags=...) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/common/qv4staticvalue_p.h:316
#48 0x00007f25b403b1b3 in QQmlNonbindingBinding::doUpdate (this=0x55c316ac98d0, watcher=..., flags=..., scope=...) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/jsruntime/qv4scopedvalue_p.h:242
#49 0x00007f25b4037f82 in QQmlBinding::update (this=0x55c316ac98d0, flags=...) at qml/qqmlbinding.cpp:194
#50 0x00007f25b400f5fd in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:104
#51 0x00007f25b3fb1f6f in QQmlData::signalEmitted (object=0x55c315417400, index=51, a=0x0) at qml/qqmlengine.cpp:834
#52 0x00007f25b29cb4d5 in doActivate<false> (sender=0x55c315417400, signal_index=51, argv=0x0) at kernel/qobject_p.h:110
#53 0x00007f25b3fad126 in QQmlVMEMetaObject::writeVarProperty(int, QV4::Value const&) () at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmlpropertycache_p.h:376
#54 0x00007f25b40383b5 in QQmlBinding::slowWrite (this=this@entry=0x7f25a8058f70, core=..., valueTypeData=..., result=..., isUndefined=isUndefined@entry=false, flags=..., flags@entry=...) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmlpropertydata_p.h:285
#55 0x00007f25b4039b80 in GenericBinding<0>::write (this=0x7f25a8058f70, result=..., isUndefined=<optimized out>, flags=...) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/common/qv4staticvalue_p.h:316
#56 0x00007f25b403b1b3 in QQmlNonbindingBinding::doUpdate (this=0x7f25a8058f70, watcher=..., flags=..., scope=...) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/jsruntime/qv4scopedvalue_p.h:242
#57 0x00007f25b4037f82 in QQmlBinding::update (this=0x7f25a8058f70, flags=...) at qml/qqmlbinding.cpp:194
#58 0x00007f25b3edccb6 in QV4::QObjectWrapper::setProperty (engine=0x55c31437c820, object=0x55c315417400, property=0x7f25a06811b8, value=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qflags.h:121
#59 0x00007f25b3edd16e in QV4::QObjectWrapper::setQmlProperty (engine=0x55c31437c820, qmlContext=<optimized out>, object=0x55c315417400, name=<optimized out>, revisionMode=QV4::QObjectWrapper::IgnoreRevision, value=...) at jsruntime/qv4qobjectwrapper.cpp:435
#60 0x00007f25b3edd2e7 in QV4::QObjectWrapper::virtualPut(QV4::Managed*, QV4::PropertyKey, QV4::Value const&, QV4::Value*) () at /usr/include/c++/9/bits/atomic_base.h:413
#61 0x00007f25b3e5a80c in QV4::Object::put (receiver=0x7f25ac192598, v=..., name=0x7f25ac1925a0, this=0x7f25ac192598) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/jsruntime/qv4string_p.h:167
#62 QV4::Lookup::setterFallback (l=<optimized out>, engine=0x55c31437c820, object=..., value=...) at jsruntime/qv4lookup.cpp:497
#63 0x00007f25b3ef7ba6 in QV4::Moth::VME::interpret (frame=0x7ffe7cd7dc50, engine=0x55c31437c820, code=0x7f25792595c5 "/\345\001") at jsruntime/qv4vme_moth.cpp:653
#64 0x00007f25b3efcfcf in QV4::Moth::VME::exec (frame=frame@entry=0x7ffe7cd7dc50, engine=engine@entry=0x55c31437c820) at jsruntime/qv4vme_moth.cpp:463
#65 0x00007f25b3e8a1ed in QV4::Function::call (this=this@entry=0x55c3155af250, thisObject=<optimized out>, argv=argv@entry=0x7f25ac192500, argc=<optimized out>, context=<optimized out>) at jsruntime/qv4function.cpp:69
#66 0x00007f25b4030e27 in QQmlJavaScriptExpression::evaluate (this=this@entry=0x55c3164ab630, callData=callData@entry=0x7f25ac1924d0, isUndefined=isUndefined@entry=0x0) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/jsruntime/qv4value_p.h:343
#67 0x00007f25b3fd385e in QQmlBoundSignalExpression::evaluate (this=<optimized out>, a=<optimized out>) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/jsruntime/qv4jscall_p.h:95
#68 0x00007f25b3fd48f8 in QQmlBoundSignal_callback (e=0x55c3162eef50, a=0x0) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmlboundsignalexpressionpointer_p.h:69
#69 0x00007f25b400f5fd in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:104
#70 0x00007f25b3fb1f6f in QQmlData::signalEmitted (object=0x55c31631e080, index=36, a=0x0) at qml/qqmlengine.cpp:834
#71 0x00007f25b29cb4d5 in doActivate<false> (sender=0x55c31631e080, signal_index=36, argv=0x0) at kernel/qobject_p.h:110
#72 0x00007f25b29c4d17 in QMetaObject::activate (sender=sender@entry=0x55c31631e080, m=m@entry=0x7f25a41ee7c0 <ToolTip::staticMetaObject>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3946
#73 0x00007f25a41a6857 in ToolTip::containsMouseChanged (this=this@entry=0x55c31631e080) at ./obj-x86_64-linux-gnu/src/declarativeimports/core/corebindingsplugin_autogen/EWIEGA46WW/moc_tooltip.cpp:409
#74 0x00007f25a41ccef7 in ToolTip::setContainsMouse (contains=true, this=0x55c31631e080) at ./src/declarativeimports/core/tooltip.cpp:306
#75 ToolTip::hoverEnterEvent (this=0x55c31631e080, event=<optimized out>) at ./src/declarativeimports/core/tooltip.cpp:316
#76 0x00007f25b4593508 in QQuickItem::event (this=0x55c31631e080, ev=0x7ffe7cd7fc60) at items/qquickitem.cpp:8128
#77 0x00007f25b3688da3 in QApplicationPrivate::notify_helper (this=this@entry=0x55c314164df0, receiver=receiver@entry=0x55c31631e080, e=e@entry=0x7ffe7cd7fc60) at kernel/qapplication.cpp:3630
#78 0x00007f25b3691b98 in QApplication::notify (this=0x7ffe7cd81490, receiver=0x55c31631e080, e=0x7ffe7cd7fc60) at kernel/qapplication.cpp:3154
#79 0x00007f25b299492a in QCoreApplication::notifyInternal2 (receiver=0x55c31631e080, event=0x7ffe7cd7fc60) at ../../include/QtCore/5.15.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#80 0x00007f25b45a9ea4 in QQuickWindowPrivate::sendHoverEvent (this=this@entry=0x55c314df38f0, type=type@entry=QEvent::HoverEnter, item=item@entry=0x55c31631e080, scenePos=..., lastScenePos=..., modifiers=modifiers@entry=..., timestamp=0, accepted=true) at items/qquickwindow.cpp:2064
#81 0x00007f25b45aae17 in QQuickWindowPrivate::deliverHoverEvent (this=0x55c314df38f0, item=<optimized out>, scenePos=..., lastScenePos=..., modifiers=..., timestamp=<optimized out>, accepted=<optimized out>) at items/qquickwindow.cpp:2143
#82 0x00007f25b45aa570 in QQuickWindowPrivate::deliverHoverEvent (this=0x55c314df38f0, item=<optimized out>, scenePos=..., lastScenePos=..., modifiers=..., timestamp=0, accepted=@0x7ffe7cd80c48: true) at items/qquickwindow.cpp:2088
#83 0x00007f25b45aa570 in QQuickWindowPrivate::deliverHoverEvent (this=0x55c314df38f0, item=<optimized out>, scenePos=..., lastScenePos=..., modifiers=..., timestamp=0, accepted=@0x7ffe7cd80c48: true) at items/qquickwindow.cpp:2088
#84 0x00007f25b45aa570 in QQuickWindowPrivate::deliverHoverEvent (this=0x55c314df38f0, item=<optimized out>, scenePos=..., lastScenePos=..., modifiers=..., timestamp=0, accepted=@0x7ffe7cd80c48: true) at items/qquickwindow.cpp:2088
#85 0x00007f25b45aa570 in QQuickWindowPrivate::deliverHoverEvent (this=0x55c314df38f0, item=<optimized out>, scenePos=..., lastScenePos=..., modifiers=..., timestamp=0, accepted=@0x7ffe7cd80c48: true) at items/qquickwindow.cpp:2088
#86 0x00007f25b45aa570 in QQuickWindowPrivate::deliverHoverEvent (this=0x55c314df38f0, item=<optimized out>, scenePos=..., lastScenePos=..., modifiers=..., timestamp=0, accepted=@0x7ffe7cd80c48: true) at items/qquickwindow.cpp:2088
#87 0x00007f25b45aa570 in QQuickWindowPrivate::deliverHoverEvent (this=0x55c314df38f0, item=<optimized out>, scenePos=..., lastScenePos=..., modifiers=..., timestamp=0, accepted=@0x7ffe7cd80c48: true) at items/qquickwindow.cpp:2088
#88 0x00007f25b45aa570 in QQuickWindowPrivate::deliverHoverEvent (this=0x55c314df38f0, item=<optimized out>, scenePos=..., lastScenePos=..., modifiers=..., timestamp=0, accepted=@0x7ffe7cd80c48: true) at items/qquickwindow.cpp:2088
#89 0x00007f25b45aa570 in QQuickWindowPrivate::deliverHoverEvent (this=0x55c314df38f0, item=<optimized out>, scenePos=..., lastScenePos=..., modifiers=..., timestamp=0, accepted=@0x7ffe7cd80c48: true) at items/qquickwindow.cpp:2088
#90 0x00007f25b45aa570 in QQuickWindowPrivate::deliverHoverEvent (this=0x55c314df38f0, item=<optimized out>, scenePos=..., lastScenePos=..., modifiers=..., timestamp=0, accepted=@0x7ffe7cd80c48: true) at items/qquickwindow.cpp:2088
#91 0x00007f25b45aa570 in QQuickWindowPrivate::deliverHoverEvent (this=0x55c314df38f0, item=<optimized out>, scenePos=..., lastScenePos=..., modifiers=..., timestamp=0, accepted=@0x7ffe7cd80c48: true) at items/qquickwindow.cpp:2088
#92 0x00007f25b45aa570 in QQuickWindowPrivate::deliverHoverEvent (this=0x55c314df38f0, item=<optimized out>, scenePos=..., lastScenePos=..., modifiers=..., timestamp=0, accepted=@0x7ffe7cd80c48: true) at items/qquickwindow.cpp:2088
#93 0x00007f25b45aa570 in QQuickWindowPrivate::deliverHoverEvent (this=this@entry=0x55c314df38f0, item=<optimized out>, scenePos=..., lastScenePos=..., modifiers=..., timestamp=0, accepted=@0x7ffe7cd80c48: true) at items/qquickwindow.cpp:2088
#94 0x00007f25b45b00ad in QQuickWindowPrivate::handleMouseEvent (event=0x7f25a808a470, this=0x55c314df38f0) at /usr/include/x86_64-linux-gnu/qt5/QtGui/qevent.h:129
#95 QQuickWindowPrivate::handleMouseEvent (this=0x55c314df38f0, event=0x7f25a808a470) at items/qquickwindow.cpp:2386
#96 0x00007f25b2d7fd4d in QWindow::event (this=this@entry=0x55c314ee7e50, ev=ev@entry=0x7f25a808a470) at kernel/qwindow.cpp:2438
#97 0x00007f25b45b1a0b in QQuickWindow::event (this=this@entry=0x55c314ee7e50, e=e@entry=0x7f25a808a470) at items/qquickwindow.cpp:1878
#98 0x000055c3122a8b8f in PanelView::event (this=0x55c314ee7e50, e=0x7f25a808a470) at ./shell/panelview.cpp:978
#99 0x00007f25b3688da3 in QApplicationPrivate::notify_helper (this=this@entry=0x55c314164df0, receiver=receiver@entry=0x55c314ee7e50, e=e@entry=0x7f25a808a470) at kernel/qapplication.cpp:3630
#100 0x00007f25b3691b98 in QApplication::notify (this=0x7ffe7cd81490, receiver=0x55c314ee7e50, e=0x7f25a808a470) at kernel/qapplication.cpp:3154
#101 0x00007f25b299492a in QCoreApplication::notifyInternal2 (receiver=0x55c314ee7e50, event=0x7f25a808a470) at ../../include/QtCore/5.15.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#102 0x00007f25b2997231 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55c31415a1a0) at kernel/qcoreapplication.cpp:1817
#103 0x00007f25b29efbd7 in postEventSourceDispatch (s=0x55c314186d50) at kernel/qeventdispatcher_glib.cpp:277
#104 0x00007f25b0d60fbd in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#105 0x00007f25b0d61240 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#106 0x00007f25b0d612e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#107 0x00007f25b29ef232 in QEventDispatcherGlib::processEvents (this=0x55c3141a12d0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#108 0x00007f25b299343b in QEventLoop::exec (this=this@entry=0x7ffe7cd81340, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#109 0x00007f25b299b5e4 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#110 0x000055c31228ed6c in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:252
[Inferior 1 (process 1771) detached]

Reported using DrKonqi
Comment 1 Méven Car 2020-12-07 14:07:28 UTC 
This is a bug in pipewire, was reported https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/422

and is already fixed https://gitlab.freedesktop.org/pipewire/pipewire/-/commit/fc2b0b20ad4271b0c6f258451a82311b792b7a57 in pipewire 0.3.17 but neon doesn't ship it as of yet.

apt show libpipewire-0.3-0 is at 0.3.16 in neon

Dear neon maintainer, could you update libpipewire to 0.3.17 or is it out of reach ?
Comment 2 Loren 2020-12-07 18:43:11 UTC 
Created attachment 133924 [details]
New crash information added by DrKonqi

plasmashell (5.20.4) using Qt 5.15.2

- What I was doing when the application crashed:

I was closing KDE Connect after having comed back from Firefox.

I have no issues using Firefow, just Plasma software.

-- Backtrace (Reduced):
#4  spa_hook_remove (hook=0x55f5d08718e8) at ../spa/include/spa/utils/hook.h:112
#5  spa_hook_list_clean (list=0x55f5d08ac318) at ../spa/include/spa/utils/hook.h:119
#6  pw_proxy_destroy (proxy=proxy@entry=0x55f5d08ac2c0) at ../src/pipewire/proxy.c:261
#7  0x00007f0afe6fa354 in pw_core_disconnect (core=0x55f5d08ac2c0) at ../src/pipewire/core.c:496
#8  0x00007f0afe79cc09 in PipeWireCore::~PipeWireCore (this=0x55f5d08718c0, __in_chrg=<optimized out>) at ./libtaskmanager/declarative/pipewirecore.cpp:53
Comment 3 Jonathan Riddell 2020-12-08 16:58:52 UTC 
Does the snapshot update today help?
Comment 4 Loren 2020-12-08 19:43:08 UTC 
Hi Jonathan.
I have no experienced the issue since I applied the update and rebooted the system, so it seems it has solved the issue.
Thank you very much for the speed!