Bug 495894

Summary: kded6 and plasmashell processes crash together when ejecting a CD/DVD/BD
Product: [Frameworks and Libraries] frameworks-solid Reporter: Patrick Silva <bugseforuns>
Component: generalAssignee: Unassigned bugs <unassigned-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: crash CC: kdedev, kdelibs-bugs-null, lukas, nate, nicolas.fella
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Neon   
OS: Other   
See Also: https://bugs.kde.org/show_bug.cgi?id=493588
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Patrick Silva 2024-11-06 20:56:32 UTC 
SUMMARY
On neon unstable, kded6 and plasmashell processes crash together when ejecting a CD/DVD/BD, even if it is unmounted.

STEPS TO REPRODUCE
1. insert a CD/DVD/BD
2. eject the disc by pressing the physical button of the optical device
3. 

EXPECTED RESULT
no crash

the backtrace of kded6 process that crashes together when ejecting a unmounted blu-ray disc:


Thread 10 (Thread 0x70b28d2006c0 (LWP 1524)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x000070b2a256d40d in g_cond_wait (cond=0x5734090b56f8, mutex=0x5734090b56f0) at ../../../glib/gthread-posix.c:1552
#2  0x000070b2a24de52b in g_async_queue_pop_intern_unlocked (queue=0x5734090b56f0, wait=1, end_time=-1) at ../../../glib/gasyncqueue.c:375
#3  0x000070b2a2546043 in g_thread_pool_spawn_thread (data=<optimized out>) at ../../../glib/gthreadpool.c:297
#4  0x000070b2a2542c82 in g_thread_proxy (data=0x5734090db2a0) at ../../../glib/gthread.c:835
#5  0x000070b2a229ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#6  0x000070b2a2329c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 9 (Thread 0x70b27aa006c0 (LWP 1533)):
#0  0x000070b2a231b4cd in __GI___poll (fds=fds@entry=0x70b2600071a0, nfds=nfds@entry=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x000070b28c7f8566 in poll (__timeout=-1, __nfds=2, __fds=0x70b2600071a0) at /usr/include/x86_64-linux-gnu/bits/poll2.h:39
#2  poll_func (ufds=0x70b2600071a0, nfds=2, timeout=-1, userdata=0x573409132d00) at ../src/pulse/thread-mainloop.c:70
#3  0x000070b28c7e16c4 in pa_mainloop_poll (m=m@entry=0x573409132c00) at ../src/pulse/mainloop.c:863
#4  0x000070b28c7ec193 in pa_mainloop_iterate (m=m@entry=0x573409132c00, block=block@entry=1, retval=retval@entry=0x0) at ../src/pulse/mainloop.c:945
#5  0x000070b28c7ec258 in pa_mainloop_run (m=0x573409132c00, retval=0x0) at ../src/pulse/mainloop.c:963
#6  0x000070b28c7fc771 in thread (userdata=0x573409132bb0) at ../src/pulse/thread-mainloop.c:101
#7  0x000070b28c7a13eb in internal_thread_func (userdata=0x573409134890) at ../src/pulsecore/thread-posix.c:81
#8  0x000070b2a229ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x000070b2a2329c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 8 (Thread 0x70b27a0006c0 (LWP 1554)):
#0  0x000070b2a231b4cd in __GI___poll (fds=0x70b258000b90, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x000070b2a257366e in g_main_context_poll_unlocked (priority=2147483647, n_fds=1, fds=0x70b258000b90, timeout=<optimized out>, context=0x5734091d1a10) at ../../../glib/gmain.c:4521
#2  g_main_context_iterate_unlocked.isra.0 (context=context@entry=0x5734091d1a10, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4212
#3  0x000070b2a2513a53 in g_main_context_iteration (context=context@entry=0x5734091d1a10, may_block=may_block@entry=1) at ../../../glib/gmain.c:4282
#4  0x000070b287fa4595 in dconf_gdbus_worker_thread (user_data=0x5734091d1a10) at ../gdbus/dconf-gdbus-thread.c:82
#5  0x000070b2a2542c82 in g_thread_proxy (data=0x5734091d1c00) at ../../../glib/gthread.c:835
#6  0x000070b2a229ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#7  0x000070b2a2329c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 7 (Thread 0x70b28dc006c0 (LWP 1501)):
#0  0x000070b2a2298d61 in __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x573408d785b8) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (cancel=true, private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x573408d785b8) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x573408d785b8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x000070b2a229b7dd in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x573408d78560, cond=0x573408d78590) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x573408d78590, mutex=0x573408d78560) at ./nptl/pthread_cond_wait.c:627
#5  0x000070b28df1d7cd in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x000070b28defcaab in util_queue_thread_func (input=input@entry=0x573408d31450) at ../src/util/u_queue.c:290
#7  0x000070b28df1d6fc in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x000070b2a229ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x000070b2a2329c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 6 (Thread 0x70b2958006c0 (LWP 1499)):
#0  0x000070b2a231b4cd in __GI___poll (fds=fds@entry=0x70b2957ffbc0, nfds=nfds@entry=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x000070b29edb0b5f in poll (__timeout=-1, __nfds=2, __fds=0x70b2957ffbc0) at /usr/include/x86_64-linux-gnu/bits/poll2.h:39
#2  QtWaylandClient::EventThread::run (this=0x573408d0bb70) at /usr/src/qt6-wayland-6.8.0-0zneon+24.04+noble+unstable+build9/src/client/qwaylanddisplay.cpp:182
#3  0x000070b2a2d85e47 in operator() (__closure=<optimized out>) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/thread/qthread_unix.cpp:335
#4  (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=<optimized out>) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/thread/qthread_unix.cpp:263
#5  QThreadPrivate::start (arg=0x573408d0bb70) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/thread/qthread_unix.cpp:294
#6  0x000070b2a229ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#7  0x000070b2a2329c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 5 (Thread 0x70b27be006c0 (LWP 1525)):
#0  0x000070b2a231b4cd in __GI___poll (fds=0x5734090db870, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x000070b2a257366e in g_main_context_poll_unlocked (priority=2147483647, n_fds=1, fds=0x5734090db870, timeout=<optimized out>, context=0x5734090db640) at ../../../glib/gmain.c:4521
#2  g_main_context_iterate_unlocked.isra.0 (context=context@entry=0x5734090db640, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4212
#3  0x000070b2a2513a53 in g_main_context_iteration (context=0x5734090db640, may_block=may_block@entry=1) at ../../../glib/gmain.c:4282
#4  0x000070b2a2513aa9 in glib_worker_main (data=<optimized out>) at ../../../glib/gmain.c:6442
#5  0x000070b2a2542c82 in g_thread_proxy (data=0x5734090db810) at ../../../glib/gthread.c:835
#6  0x000070b2a229ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#7  0x000070b2a2329c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 4 (Thread 0x70b27b4006c0 (LWP 1526)):
#0  0x000070b2a231b4cd in __GI___poll (fds=0x70b268000b90, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x000070b2a257366e in g_main_context_poll_unlocked (priority=2147483647, n_fds=3, fds=0x70b268000b90, timeout=<optimized out>, context=0x5734090e7140) at ../../../glib/gmain.c:4521
#2  g_main_context_iterate_unlocked.isra.0 (context=0x5734090e7140, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4212
#3  0x000070b2a2514f77 in g_main_loop_run (loop=0x5734090e7240) at ../../../glib/gmain.c:4419
#4  0x000070b29628f422 in gdbus_shared_thread_func (user_data=0x5734090e7110) at ../../../gio/gdbusprivate.c:284
#5  0x000070b2a2542c82 in g_thread_proxy (data=0x5734090e2f80) at ../../../glib/gthread.c:835
#6  0x000070b2a229ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#7  0x000070b2a2329c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 3 (Thread 0x70b29ec006c0 (LWP 1494)):
#0  0x000070b2a231b4cd in __GI___poll (fds=0x573409319240, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x000070b2a257366e in g_main_context_poll_unlocked (priority=2147483647, n_fds=4, fds=0x573409319240, timeout=<optimized out>, context=0x70b298000cb0) at ../../../glib/gmain.c:4521
#2  g_main_context_iterate_unlocked.isra.0 (context=context@entry=0x70b298000cb0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4212
#3  0x000070b2a2513a53 in g_main_context_iteration (context=0x70b298000cb0, may_block=1) at ../../../glib/gmain.c:4282
#4  0x000070b2a2c6f4ff in QEventDispatcherGlib::processEvents (this=0x70b298000ba0, flags=...) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/kernel/qeventdispatcher_glib.cpp:396
#5  0x000070b2a2ec89bb in QEventLoop::exec (this=0x70b29ebffb80, flags=...) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/global/qflags.h:34
#6  0x000070b2a2dcb7d7 in QThread::exec (this=this@entry=0x70b2a31ff280 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager> >::instance()::holder>) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/global/qflags.h:74
#7  0x000070b2a31e198d in QDBusConnectionManager::run (this=0x70b2a31ff280 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager> >::instance()::holder>) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/dbus/qdbusconnectionmanager.cpp:144
#8  0x000070b2a2d85e47 in operator() (__closure=<optimized out>) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/thread/qthread_unix.cpp:335
#9  (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=<optimized out>) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/thread/qthread_unix.cpp:263
#10 QThreadPrivate::start (arg=0x70b2a31ff280 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager> >::instance()::holder>) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/thread/qthread_unix.cpp:294
#11 0x000070b2a229ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#12 0x000070b2a2329c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 2 (Thread 0x70b294e006c0 (LWP 1500)):
#0  0x000070b2a231b4cd in __GI___poll (fds=fds@entry=0x70b294dffbc0, nfds=nfds@entry=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x000070b29edb0b5f in poll (__timeout=-1, __nfds=2, __fds=0x70b294dffbc0) at /usr/include/x86_64-linux-gnu/bits/poll2.h:39
#2  QtWaylandClient::EventThread::run (this=0x573408d74390) at /usr/src/qt6-wayland-6.8.0-0zneon+24.04+noble+unstable+build9/src/client/qwaylanddisplay.cpp:182
#3  0x000070b2a2d85e47 in operator() (__closure=<optimized out>) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/thread/qthread_unix.cpp:335
#4  (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=<optimized out>) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/thread/qthread_unix.cpp:263
#5  QThreadPrivate::start (arg=0x573408d74390) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/thread/qthread_unix.cpp:294
#6  0x000070b2a229ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#7  0x000070b2a2329c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 1 (Thread 0x70b2a2880280 (LWP 1490)):
#0  __pthread_kill_implementation (no_tid=0, signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:44
#1  __pthread_kill_internal (signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:78
#2  __GI___pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ./nptl/pthread_kill.c:89
#3  0x000070b2a224526e in __GI_raise (sig=6) at ../sysdeps/posix/raise.c:26
#4  0x000070b2a4486f6e in KCrash::defaultCrashHandler (sig=6) at /usr/src/kf6-kcrash-6.7.0+p24.04+vunstable+git20241015.1736-0/src/kcrash.cpp:596
#5  0x000070b2a2245320 in <signal handler called> () at /lib/x86_64-linux-gnu/libc.so.6
#6  __pthread_kill_implementation (no_tid=0, signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:44
#7  __pthread_kill_internal (signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:78
#8  __GI___pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ./nptl/pthread_kill.c:89
#9  0x000070b2a224526e in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#10 0x000070b2a22288ff in __GI_abort () at ./stdlib/abort.c:79
#11 0x000070b2a2eda02c in qAbort () at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/global/qassert.cpp:49
#12 0x000070b2a2f08df8 in qt_message_fatal<QString&> (message=..., context=<optimized out>) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/global/qlogging.cpp:2089
#13 qt_message(QtMsgType, const QMessageLogContext &, const char *, typedef __va_list_tag __va_list_tag *) (msgType=msgType@entry=QtFatalMsg, context=..., msg=msg@entry=0x70b2a2c42548 "ASSERT: \"%s\" in file %s, line %d", ap=ap@entry=0x7fff8a721b78) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/global/qlogging.cpp:382
#14 0x000070b2a2f0d5b5 in QMessageLogger::fatal (this=<optimized out>, msg=0x70b2a2c42548 "ASSERT: \"%s\" in file %s, line %d") at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/global/qlogging.cpp:884
#15 0x000070b2a2eda120 in qt_assert (assertion=assertion@entry=0x70b29c7c2d40 "dev->backendObject() != nullptr", file=file@entry=0x70b29c7c2d10 "./src/solid/devices/frontend/devicemanager.cpp", line=line@entry=196) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/global/qassert.cpp:105
#16 0x000070b29c73867c in Solid::DeviceManagerPrivate::_k_deviceAdded (this=0x57340906d760, udi=...) at /usr/src/kf6-solid-6.7.0+p24.04+vunstable+git20241015.1718-0/src/solid/devices/frontend/devicemanager.cpp:196
#17 0x000070b2a2e79509 in QtPrivate::QSlotObjectBase::call (a=0x7fff8a721ef0, r=<optimized out>, this=0x573409324c90, this=<optimized out>, r=<optimized out>, a=<optimized out>) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/kernel/qobjectdefs_impl.h:486
#18 doActivate<false> (sender=0x573409191e30, signal_index=3, argv=0x7fff8a721ef0) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/kernel/qobject.cpp:4120
#19 0x000070b29c7537b9 in Solid::Ifaces::DeviceManager::deviceAdded (this=<optimized out>, _t1=<optimized out>) at /usr/src/kf6-solid-6.7.0+p24.04+vunstable+git20241015.1718-0/obj-x86_64-linux-gnu/src/solid/KF6Solid_autogen/include/moc_devicemanager.cpp:155
#20 0x000070b29c777323 in Solid::Backends::UDisks2::Manager::slotInterfacesRemoved (interfaces=<optimized out>, object_path=<optimized out>, this=<optimized out>) at /usr/src/kf6-solid-6.7.0+p24.04+vunstable+git20241015.1718-0/src/solid/devices/backends/udisks2/udisksmanager.cpp:251
#21 Solid::Backends::UDisks2::Manager::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /usr/src/kf6-solid-6.7.0+p24.04+vunstable+git20241015.1718-0/obj-x86_64-linux-gnu/src/solid/KF6Solid_autogen/include/moc_udisksmanager.cpp:113
#22 0x000070b2a2e79a84 in doActivate<false> (sender=0x573409191e48, signal_index=4, argv=0x7fff8a7221a0) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/kernel/qobject.cpp:4132
#23 0x000070b29c7996d6 in OrgFreedesktopDBusObjectManagerInterface::InterfacesRemoved (_t2=<optimized out>, _t1=<optimized out>, this=<optimized out>) at /usr/src/kf6-solid-6.7.0+p24.04+vunstable+git20241015.1718-0/obj-x86_64-linux-gnu/src/solid/KF6Solid_autogen/include/moc_manager.cpp:197
#24 OrgFreedesktopDBusObjectManagerInterface::qt_static_metacall (_o=_o@entry=0x573409191e48, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=1, _a=_a@entry=0x7fff8a722378) at /usr/src/kf6-solid-6.7.0+p24.04+vunstable+git20241015.1718-0/obj-x86_64-linux-gnu/src/solid/KF6Solid_autogen/include/moc_manager.cpp:115
#25 0x000070b29c79992a in OrgFreedesktopDBusObjectManagerInterface::qt_metacall (this=0x573409191e48, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0x7fff8a722378) at /usr/src/kf6-solid-6.7.0+p24.04+vunstable+git20241015.1718-0/obj-x86_64-linux-gnu/src/solid/KF6Solid_autogen/include/moc_manager.cpp:179
#26 0x000070b2a319a2dc in QDBusConnectionPrivate::deliverCall (this=0x70b298012cd0, object=0x573409191e48, msg=..., metaTypes=<optimized out>, slotIdx=6) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/dbus/qdbusintegrator.cpp:1008
#27 0x000070b2a2e1783d in QObject::event (this=0x573409191e48, e=0x70b29800bcc0) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/kernel/qobject.cpp:1419
#28 0x000070b2a41ff518 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x573409191e48, e=0x70b29800bcc0) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/widgets/kernel/qapplication.cpp:3294
#29 0x000070b2a2ebda48 in QCoreApplication::notifyInternal2 (receiver=0x573409191e48, event=0x70b29800bcc0) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/kernel/qcoreapplication.cpp:1165
#30 0x000070b2a2ebda8d in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/kernel/qcoreapplication.cpp:1609
#31 0x000070b2a2ebdca2 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x573408ce2450) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/kernel/qcoreapplication.cpp:1965
#32 0x000070b2a2c7169f in postEventSourceDispatch (s=s@entry=0x573408d70da0) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/kernel/qeventdispatcher_glib.cpp:246
#33 0x000070b2a25145b5 in g_main_dispatch (context=0x70b298000f30) at ../../../glib/gmain.c:3344
#34 0x000070b2a2573717 in g_main_context_dispatch_unlocked (context=0x70b298000f30) at ../../../glib/gmain.c:4152
#35 g_main_context_iterate_unlocked.isra.0 (context=context@entry=0x70b298000f30, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4217
#36 0x000070b2a2513a53 in g_main_context_iteration (context=0x70b298000f30, may_block=1) at ../../../glib/gmain.c:4282
#37 0x000070b2a2c6f4ff in QEventDispatcherGlib::processEvents (this=0x573408ce5be0, flags=...) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/kernel/qeventdispatcher_glib.cpp:396
#38 0x000070b2a2ec89bb in QEventLoop::exec (this=0x7fff8a7229f0, flags=...) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/global/qflags.h:34
#39 0x000070b2a2ebe68d in QCoreApplication::exec () at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/global/qflags.h:74
#40 0x000070b2a34d48ed in QGuiApplication::exec () at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/gui/kernel/qguiapplication.cpp:1975
#41 0x000070b2a41f8579 in QApplication::exec () at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/widgets/kernel/qapplication.cpp:2562
#42 0x00005733f8f8b089 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/kf6-kded-6.7.0+p24.04+vunstable+git20241029.1105-0/src/kded.cpp:674
Comment 1 Nate Graham 2024-11-06 21:32:07 UTC 

*** This bug has been marked as a duplicate of bug 495387 ***
Comment 2 Nate Graham 2024-11-06 21:34:17 UTC 
Ah never mind, it's slightly different from Bug 495387.

#14 0x000070b2a2f0d5b5 in QMessageLogger::fatal (this=<optimized out>, msg=0x70b2a2c42548 "ASSERT: \"%s\" in file %s, line %d") at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/global/qlogging.cpp:884
#15 0x000070b2a2eda120 in qt_assert (assertion=assertion@entry=0x70b29c7c2d40 "dev->backendObject() != nullptr", file=file@entry=0x70b29c7c2d10 "./src/solid/devices/frontend/devicemanager.cpp", line=line@entry=196) at /usr/src/qt6-base-6.8.0-0zneon+24.04+noble+unstable+build18/src/corelib/global/qassert.cpp:105
#16 0x000070b29c73867c in Solid::DeviceManagerPrivate::_k_deviceAdded (this=0x57340906d760, udi=...) at /usr/src/kf6-solid-6.7.0+p24.04+vunstable+git20241015.1718-0/src/solid/devices/frontend/devicemanager.cpp:196
Comment 3 TraceyC 2024-11-07 21:29:07 UTC 
As mentioned in Bug 493588, Solid is from October 15. A fix  for the other crash was merged October 19
Comment 4 Nate Graham 2024-11-08 20:02:40 UTC 
Ah, good catch!

*** This bug has been marked as a duplicate of bug 493588 ***
Comment 5 Nate Graham 2024-11-25 18:55:09 UTC 

*** This bug has been marked as a duplicate of bug 492578 ***