Bug 494140

Summary: kde connect crashes on sleep
Product: [Applications] kdeconnect Reporter: prasol258 <prasol258>
Component: plasmoidAssignee: Albert Vaca Cintora <albertvaka>
Status: RESOLVED DUPLICATE    
Severity: crash CC: cwo.kde, kde, me, p.r.worrall, stepien241
Priority: NOR Keywords: drkonqi
Version: unspecified   
Target Milestone: ---   
Platform: NixOS   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description prasol258@gmail.com 2024-10-04 23:11:57 UTC 
Application:  (24.08.1)

Qt Version: 6.7.2
Frameworks Version: 6.6.0
Operating System: Linux 6.11.1 x86_64
Windowing System: Wayland
Distribution: NixOS 24.11 (Vicuna)
DrKonqi: 6.1.5 [CoredumpBackend]

-- Information about the crash:
Putting the device to sleep and then waking it up crashes the kde connect daemon almost every time

The crash can be reproduced every time.

-- Backtrace:
Application: KDE Connect Daemon (), signal: Segmentation fault
Content of s_kcrashErrorMessage: std::unique_ptr<char []> = {get() = 0x0}
[New LWP 8585]
[New LWP 8589]
[New LWP 8586]
[New LWP 8587]
[New LWP 8588]
[New LWP 8591]
[New LWP 8592]
[New LWP 8590]
[New LWP 8593]
[New LWP 8594]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/nix/store/3dyw8dzj9ab4m8hv5dpyx7zii8d0w6fi-glibc-2.39-52/lib/libthread_db.so.1".
Core was generated by `/nix/store/kp2wcpd0dliylw9cp13mg0647sfkkrbp-kdeconnect-kde-24.08.1/bin/.kdeconn'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
44	      return INTERNAL_SYSCALL_ERROR_P (ret) ? INTERNAL_SYSCALL_ERRNO (ret) : 0;
[Current thread is 1 (Thread 0x7f6fc782d400 (LWP 8585))]
To enable execution of this file add
	add-auto-load-safe-path /nix/store/pjxrn2wn0sn533p48jz5qxgjld84hn3i-glib-2.80.4/lib/libgobject-2.0.so.0.8000.4-gdb.py
line to your configuration file "/home/user/.gdbinit".
To completely disable this security protection add
	set auto-load safe-path /
line to your configuration file "/home/user/.gdbinit".
For more information about this security protection see the
"Auto-loading safe path" section in the GDB manual.  E.g., run from the shell:
	info "(gdb)Auto-loading safe path"

Cannot QML trace cores :(
Unexpectedly stumbled over an objfile (/nix/store/0dmcwcb25b97h4hqp0yrl44xa6yyv1k2-libjxl-0.10.3/lib/libjxl.so.0.10.3) without build_id. Not creating payload.
[Current thread is 1 (Thread 0x7f6fc782d400 (LWP 8585))]

Thread 10 (Thread 0x7f6fb56006c0 (LWP 8594)):
#0  0x00007f6fcca960ce in __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x1d5d2910) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x1d5d2910, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f6fcca9616f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x1d5d2910, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f6fcca98c20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x1d5d28b8, cond=0x1d5d28e8) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x1d5d28e8, mutex=0x1d5d28b8) at pthread_cond_wait.c:618
#5  0x00007f6fbcf2b879 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f6fbcf097ab in util_queue_thread_func (input=input@entry=0x1ce0d820) at ../src/util/u_queue.c:290
#7  0x00007f6fbcf2b7a7 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f6fcca99a42 in start_thread (arg=<optimized out>) at pthread_create.c:447
#9  0x00007f6fccb1905c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 9 (Thread 0x7f6fb60006c0 (LWP 8593)):
#0  0x00007f6fcca960ce in __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x1d57ea10) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x1d57ea10, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f6fcca9616f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x1d57ea10, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f6fcca98c20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x1d57e9b8, cond=0x1d57e9e8) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x1d57e9e8, mutex=0x1d57e9b8) at pthread_cond_wait.c:618
#5  0x00007f6fbcf2b879 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f6fbcf097ab in util_queue_thread_func (input=input@entry=0x1cce5550) at ../src/util/u_queue.c:290
#7  0x00007f6fbcf2b7a7 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f6fcca99a42 in start_thread (arg=<optimized out>) at pthread_create.c:447
#9  0x00007f6fccb1905c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 8 (Thread 0x7f6fb7e006c0 (LWP 8590)):
#0  0x00007f6fcca960ce in __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x1c570a28) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x1c570a28, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f6fcca9616f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x1c570a28, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f6fcca98c20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x1c5709d0, cond=0x1c570a00) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x1c570a00, mutex=0x1c5709d0) at pthread_cond_wait.c:618
#5  0x00007f6fbcf2b879 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f6fbcf097ab in util_queue_thread_func (input=input@entry=0x1c7c7b30) at ../src/util/u_queue.c:290
#7  0x00007f6fbcf2b7a7 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f6fcca99a42 in start_thread (arg=<optimized out>) at pthread_create.c:447
#9  0x00007f6fccb1905c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 7 (Thread 0x7f6fb6a006c0 (LWP 8592)):
#0  0x00007f6fcca960ce in __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x1c5735f0) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x1c5735f0, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f6fcca9616f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x1c5735f0, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f6fcca98c20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x1c573598, cond=0x1c5735c8) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x1c5735c8, mutex=0x1c573598) at pthread_cond_wait.c:618
#5  0x00007f6fbcf2b879 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f6fbcf097ab in util_queue_thread_func (input=input@entry=0x1c952e40) at ../src/util/u_queue.c:290
#7  0x00007f6fbcf2b7a7 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f6fcca99a42 in start_thread (arg=<optimized out>) at pthread_create.c:447
#9  0x00007f6fccb1905c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 6 (Thread 0x7f6fb74006c0 (LWP 8591)):
#0  0x00007f6fcca960ce in __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x1c573444) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x1c573444, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f6fcca9616f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x1c573444, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f6fcca98c20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x1c5733e8, cond=0x1c573418) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x1c573418, mutex=0x1c5733e8) at pthread_cond_wait.c:618
#5  0x00007f6fbcf2b879 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f6fbcf097ab in util_queue_thread_func (input=input@entry=0x1c948790) at ../src/util/u_queue.c:290
#7  0x00007f6fbcf2b7a7 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f6fcca99a42 in start_thread (arg=<optimized out>) at pthread_create.c:447
#9  0x00007f6fccb1905c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 5 (Thread 0x7f6fbfe006c0 (LWP 8588)):
#0  0x00007f6fccb0ad1f in __GI___poll (fds=0x7f6fbfdffa70, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f6fc977f8b6 in QtWaylandClient::EventThread::run() () from /nix/store/jkfsnpfb8js31qn089nckkbngzz3cl4g-qtwayland-6.7.2/lib/libQt6WaylandClient.so.6
#2  0x00007f6fcd33bf91 in QThreadPrivate::start(void*) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#3  0x00007f6fcca99a42 in start_thread (arg=<optimized out>) at pthread_create.c:447
#4  0x00007f6fccb1905c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 4 (Thread 0x7f6fc52006c0 (LWP 8587)):
#0  0x00007f6fccb0ad1f in __GI___poll (fds=0x7f6fc51ffa70, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f6fc977f8b6 in QtWaylandClient::EventThread::run() () from /nix/store/jkfsnpfb8js31qn089nckkbngzz3cl4g-qtwayland-6.7.2/lib/libQt6WaylandClient.so.6
#2  0x00007f6fcd33bf91 in QThreadPrivate::start(void*) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#3  0x00007f6fcca99a42 in start_thread (arg=<optimized out>) at pthread_create.c:447
#4  0x00007f6fccb1905c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 3 (Thread 0x7f6fc72006c0 (LWP 8586)):
#0  0x00007f6fccb0ad1f in __GI___poll (fds=0x1c3845d0, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f6fcc44121f in g_main_context_poll_unlocked (priority=<optimized out>, n_fds=3, fds=0x1c3845d0, timeout=<optimized out>, context=0x7f6fc0000c80) at ../glib/gmain.c:4521
#2  g_main_context_iterate_unlocked (context=context@entry=0x7f6fc0000c80, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4212
#3  0x00007f6fcc4418ec in g_main_context_iteration (context=0x7f6fc0000c80, may_block=1) at ../glib/gmain.c:4282
#4  0x00007f6fcd46347c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#5  0x00007f6fcd192d33 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#6  0x00007f6fcd2a0245 in QThread::exec() () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#7  0x00007f6fce16dc6a in QDBusConnectionManager::run() () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6DBus.so.6
#8  0x00007f6fcd33bf91 in QThreadPrivate::start(void*) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#9  0x00007f6fcca99a42 in start_thread (arg=<optimized out>) at pthread_create.c:447
#10 0x00007f6fccb1905c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 2 (Thread 0x7f6fbcc006c0 (LWP 8589)):
#0  0x00007f6fcca960ce in __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x1c57236c) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x1c57236c, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x00007f6fcca9616f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x1c57236c, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x00007f6fcca98c20 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x1c572310, cond=0x1c572340) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x1c572340, mutex=0x1c572310) at pthread_cond_wait.c:618
#5  0x00007f6fbcf2b879 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f6fbcf097ab in util_queue_thread_func (input=input@entry=0x1c574290) at ../src/util/u_queue.c:290
#7  0x00007f6fbcf2b7a7 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f6fcca99a42 in start_thread (arg=<optimized out>) at pthread_create.c:447
#9  0x00007f6fccb1905c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 1 (Thread 0x7f6fc782d400 (LWP 8585)):
[KCrash Handler]
#5  0x00007f6fcd2ef1b5 in QRingBuffer::chop(long long) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#6  0x00007f6fcd14a518 in QIODevicePrivate::read(char*, long long, bool) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#7  0x00007f6fcd14b730 in QIODevice::readLineData(char*, long long) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#8  0x00007f6fcd14b8c2 in QIODevicePrivate::readLine(char*, long long) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#9  0x00007f6fcd14bd46 in QIODevice::readLine(long long) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#10 0x00007f6fcfe457fd in BluetoothLinkProvider::serverDataReceived (this=0x1d9609e0, peer=..., socket=...) at /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/include/QtCore/qsharedpointer_impl.h:274
#11 0x00007f6fcfe460e0 in operator() (__closure=0x1dbf8200) at /build/kdeconnect-kde-24.08.1/core/backends/bluetooth/bluetoothlinkprovider.cpp:259
#12 QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, BluetoothLinkProvider::serverNewConnection()::<lambda()> >::call (arg=<optimized out>, f=...) at /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/include/QtCore/qobjectdefs_impl.h:137
#13 QtPrivate::FunctorCallable<BluetoothLinkProvider::serverNewConnection()::<lambda()> >::call<QtPrivate::List<>, void> (arg=<optimized out>, f=...) at /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/include/QtCore/qobjectdefs_impl.h:345
#14 QtPrivate::QCallableObject<BluetoothLinkProvider::serverNewConnection()::<lambda()>, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=<optimized out>, this_=0x1dbf81f0, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/include/QtCore/qobjectdefs_impl.h:555
#15 0x00007f6fcd1eb170 in void doActivate<false>(QObject*, int, void**) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#16 0x00007f6fcd1eb170 in void doActivate<false>(QObject*, int, void**) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#17 0x00007f6fcfe39d8f in MultiplexChannel::disconnect (this=0x1c3958c0) at /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/include/QtCore/qsharedpointer_impl.h:274
#18 0x00007f6fcd1eb170 in void doActivate<false>(QObject*, int, void**) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#19 0x00007f6fcfe3cdec in ConnectionMultiplexer::disconnected (this=0x1d9505b0) at /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/include/QtCore/qsharedpointer_impl.h:274
#20 0x00007f6fcd1eb170 in void doActivate<false>(QObject*, int, void**) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#21 0x00007f6fccf7a308 in QBluetoothSocketPrivateBluez::abort() () from /nix/store/0kcdf7rxyjcgwkd8p04pjwpzvd4n3blg-qtconnectivity-6.7.2/lib/libQt6Bluetooth.so.6
#22 0x00007f6fcd1eb3ff in void doActivate<false>(QObject*, int, void**) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#23 0x00007f6fcd1f87bf in QSocketNotifier::activated(QSocketDescriptor, QSocketNotifier::Type, QSocketNotifier::QPrivateSignal) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#24 0x00007f6fcd1f9035 in QSocketNotifier::event(QEvent*) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#25 0x00007f6fce3950f5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Widgets.so.6
#26 0x00007f6fcd185a38 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#27 0x00007f6fcd46453c in socketNotifierSourceDispatch(_GSource*, int (*)(void*), void*) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#28 0x00007f6fcc43e0a4 in g_main_dispatch (context=context@entry=0x7f6fc0000f00) at ../glib/gmain.c:3344
#29 0x00007f6fcc4412c7 in g_main_context_dispatch_unlocked (context=0x7f6fc0000f00) at ../glib/gmain.c:4152
#30 g_main_context_iterate_unlocked (context=context@entry=0x7f6fc0000f00, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4217
#31 0x00007f6fcc4418ec in g_main_context_iteration (context=0x7f6fc0000f00, may_block=1) at ../glib/gmain.c:4282
#32 0x00007f6fcd46347c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#33 0x00007f6fcd192d33 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#34 0x00007f6fcd18eb96 in QCoreApplication::exec() () from /nix/store/82n7plcl529pfa8ymv0gpybzx5d9zd6b-qtbase-6.7.2/lib/libQt6Core.so.6
#35 0x0000000000404ad7 in main (argc=<optimized out>, argv=<optimized out>) at /build/kdeconnect-kde-24.08.1/daemon/kdeconnectd.cpp:196

Reported using DrKonqi
Comment 1 prasol258@gmail.com 2024-10-04 23:15:09 UTC 
I'm aware bluetooth support is in beta, but this is exactly why im reporting this
Comment 2 Michał 2024-10-28 19:44:20 UTC 
I have the same issue. Here's my bug report (w/ backtrace).

---- Bug report fron DrKonqi ----
Application: kdeconnectd (24.08.2)

ApplicationNotResponding [ANR]: false
Qt Version: 6.8.0
Frameworks Version: 6.7.0
Operating System: Linux 6.11.5-2-cachyos x86_64
Windowing System: X11
Distribution: "Arch Linux"
DrKonqi: 6.2.2 [CoredumpBackend]

-- Backtrace:
Application: KDE Connect Daemon (kdeconnectd), signal: Segmentation fault
Content of s_kcrashErrorMessage: std::unique_ptr<char []> = {get() = <optimized out>}

warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
[New LWP 32005]
[New LWP 32039]
[New LWP 32008]
[New LWP 32040]
[New LWP 32007]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Core was generated by `/usr/bin/kdeconnectd'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
44	      return INTERNAL_SYSCALL_ERROR_P (ret) ? INTERNAL_SYSCALL_ERRNO (ret) : 0;
[Current thread is 1 (Thread 0x72e89018b9c0 (LWP 32005))]

Cannot QML trace cores :(
/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py:516: DeprecationWarning: datetime.datetime.utcfromtimestamp() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.fromtimestamp(timestamp, datetime.UTC).
  boot_time = datetime.utcfromtimestamp(psutil.boot_time()).strftime('%Y-%m-%dT%H:%M:%S')
/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py:533: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
  'timestamp': datetime.utcnow().isoformat(),
[Current thread is 1 (Thread 0x72e89018b9c0 (LWP 32005))]

Thread 5 (Thread 0x72e88f7156c0 (LWP 32007)):
#0  0x000072e89431abb0 in __GI_ppoll (fds=fds@entry=0x5732cee9a2c0, nfds=nfds@entry=5, timeout=<optimized out>, timeout@entry=0x0, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:42
#1  0x000072e8937b1227 in ppoll (__fds=0x5732cee9a2c0, __nfds=5, __timeout=0x0, __ss=0x0) at /usr/include/bits/poll2.h:101
#2  g_main_context_poll_unlocked (priority=<optimized out>, context=0x72e888000cb0, timeout_usec=<optimized out>, fds=0x5732cee9a2c0, n_fds=5) at ../glib/glib/gmain.c:4591
#3  g_main_context_iterate_unlocked.isra.0 (context=context@entry=0x72e888000cb0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/glib/gmain.c:4268
#4  0x000072e89374da55 in g_main_context_iteration (context=0x72e888000cb0, may_block=1) at ../glib/glib/gmain.c:4338
#5  0x000072e894bbf71d in QEventDispatcherGlib::processEvents (this=0x72e888000ba0, flags=...) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:396
#6  0x000072e894964566 in QEventLoop::processEvents (this=0x72e88f714b20, flags=...) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventloop.cpp:100
#7  QEventLoop::exec (this=0x72e88f714b20, flags=...) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventloop.cpp:191
#8  0x000072e894a57072 in QThread::exec (this=this@entry=0x72e8960e3b20 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager> >::instance()::holder>) at /usr/src/debug/qt6-base/qtbase/src/corelib/global/qflags.h:74
#9  0x000072e89605879e in QDBusConnectionManager::run (this=0x72e8960e3b20 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager> >::instance()::holder>) at /usr/src/debug/qt6-base/qtbase/src/dbus/qdbusconnectionmanager.cpp:144
#10 0x000072e894ad840f in operator() (__closure=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/thread/qthread_unix.cpp:335
#11 (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at /usr/src/debug/qt6-base/qtbase/src/corelib/thread/qthread_unix.cpp:263
#12 QThreadPrivate::start (arg=0x72e8960e3b20 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager> >::instance()::holder>) at /usr/src/debug/qt6-base/qtbase/src/corelib/thread/qthread_unix.cpp:294
#13 0x000072e8942a339d in start_thread (arg=<optimized out>) at pthread_create.c:447
#14 0x000072e89432849c in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 4 (Thread 0x72e8775fe6c0 (LWP 32040)):
#0  0x000072e89429fa19 in __futex_abstimed_wait_common64 (private=0, futex_word=0x5732cd9b8fd8, expected=0, op=393, abstime=0x0, cancel=true) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x5732cd9b8fd8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x000072e89429fa9f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5732cd9b8fd8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x000072e8942a2479 in __pthread_cond_wait_common (cond=0x5732cd9b8fb0, mutex=<optimized out>, clockid=0, abstime=0x0) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x5732cd9b8fb0, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x000072e8842ced6e in cnd_wait () at ../mesa-24.2.5/src/c11/impl/threads_posix.c:135
#6  0x000072e8842ab77c in util_queue_thread_func () at ../mesa-24.2.5/src/util/u_queue.c:290
#7  0x000072e8842cec9d in impl_thrd_routine () at ../mesa-24.2.5/src/c11/impl/threads_posix.c:67
#8  0x000072e8942a339d in start_thread (arg=<optimized out>) at pthread_create.c:447
#9  0x000072e89432849c in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 3 (Thread 0x72e88ef146c0 (LWP 32008)):
#0  0x000072e89431a63d in __GI___poll (fds=fds@entry=0x72e88ef13a68, nfds=nfds@entry=1, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x000072e892a1020b in poll (__timeout=-1, __nfds=1, __fds=0x72e88ef13a68) at /usr/include/bits/poll2.h:39
#2  _xcb_conn_wait (c=c@entry=0x5732cd7c3850, vector=vector@entry=0x0, count=count@entry=0x0, cond=<optimized out>) at /usr/src/debug/libxcb/libxcb-1.17.0/src/xcb_conn.c:510
#3  0x000072e892a11f3d in _xcb_conn_wait (count=0x0, vector=0x0, cond=0x5732cd7c3890, c=0x5732cd7c3850) at /usr/src/debug/libxcb/libxcb-1.17.0/src/xcb_conn.c:476
#4  xcb_wait_for_event (c=0x5732cd7c3850) at /usr/src/debug/libxcb/libxcb-1.17.0/src/xcb_in.c:703
#5  0x000072e890135c39 in QXcbEventQueue::run (this=0x5732cd781540) at /usr/src/debug/qt6-base/qtbase/src/plugins/platforms/xcb/qxcbeventqueue.cpp:192
#6  0x000072e894ad840f in operator() (__closure=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/thread/qthread_unix.cpp:335
#7  (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at /usr/src/debug/qt6-base/qtbase/src/corelib/thread/qthread_unix.cpp:263
#8  QThreadPrivate::start (arg=0x5732cd781540) at /usr/src/debug/qt6-base/qtbase/src/corelib/thread/qthread_unix.cpp:294
#9  0x000072e8942a339d in start_thread (arg=<optimized out>) at pthread_create.c:447
#10 0x000072e89432849c in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 2 (Thread 0x72e877dff6c0 (LWP 32039)):
#0  0x000072e89429fa19 in __futex_abstimed_wait_common64 (private=0, futex_word=0x5732cd9b1cb8, expected=0, op=393, abstime=0x0, cancel=true) at futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x5732cd9b1cb8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2  0x000072e89429fa9f in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5732cd9b1cb8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at futex-internal.c:139
#3  0x000072e8942a2479 in __pthread_cond_wait_common (cond=0x5732cd9b1c90, mutex=<optimized out>, clockid=0, abstime=0x0) at pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x5732cd9b1c90, mutex=<optimized out>) at pthread_cond_wait.c:618
#5  0x000072e8842ced6e in cnd_wait () at ../mesa-24.2.5/src/c11/impl/threads_posix.c:135
#6  0x000072e8842ab77c in util_queue_thread_func () at ../mesa-24.2.5/src/util/u_queue.c:290
#7  0x000072e8842cec9d in impl_thrd_routine () at ../mesa-24.2.5/src/c11/impl/threads_posix.c:67
#8  0x000072e8942a339d in start_thread (arg=<optimized out>) at pthread_create.c:447
#9  0x000072e89432849c in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 1 (Thread 0x72e89018b9c0 (LWP 32005)):
[KCrash Handler]
#5  0x000072e894a9926a in QArrayDataPointer<QRingChunk>::constEnd (this=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/tools/qarraydatapointer.h:127
#6  QList<QRingChunk>::end (this=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/tools/qlist.h:631
#7  QList<QRingChunk>::constLast (this=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/tools/qlist.h:652
#8  QRingBuffer::chop (this=0x0, bytes=16384) at /usr/src/debug/qt6-base/qtbase/src/corelib/tools/qringbuffer.cpp:169
#9  0x000072e894921510 in QIODevicePrivate::QRingBufferRef::chop (this=0x5732cf194fd0, bytes=16384) at /usr/src/debug/qt6-base/qtbase/src/corelib/io/qiodevice_p.h:73
#10 QIODevicePrivate::read (this=0x5732cf194f40, data=0x7fffc7890427 "\376", maxSize=<optimized out>, peeking=false) at /usr/src/debug/qt6-base/qtbase/src/corelib/io/qiodevice.cpp:1099
#11 0x000072e894921f18 in QIODevice::readLineData (this=this@entry=0x5732cf174e30, data=<optimized out>, data@entry=0x72e880007e00 "", maxSize=maxSize@entry=16384) at /usr/src/debug/qt6-base/qtbase/src/corelib/io/qiodevice.cpp:1506
#12 0x000072e8949221fe in QIODevicePrivate::readLine (this=this@entry=0x5732cf194f40, data=0x72e880007e00 "", maxSize=16384, maxSize@entry=16385) at /usr/src/debug/qt6-base/qtbase/src/corelib/io/qiodevice.cpp:1394
#13 0x000072e8949224fe in QIODevice::readLine (this=<optimized out>, maxSize=9223372036854775788, maxSize@entry=0) at /usr/src/debug/qt6-base/qtbase/src/corelib/tools/qarraydatapointer.h:119
#14 0x000072e896468e57 in BluetoothLinkProvider::serverDataReceived (this=0x5732cf042d80, peer=..., socket=...) at /usr/include/qt6/QtCore/qsharedpointer_impl.h:274
#15 0x000072e896469725 in operator() (__closure=0x72e88801fbb0) at /usr/src/debug/kdeconnect/kdeconnect-kde-24.08.2/core/backends/bluetooth/bluetoothlinkprovider.cpp:259
#16 QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, BluetoothLinkProvider::serverNewConnection()::<lambda()> >::call (f=..., arg=<optimized out>) at /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#17 QtPrivate::FunctorCallable<BluetoothLinkProvider::serverNewConnection()::<lambda()> >::call<QtPrivate::List<>, void> (f=..., arg=<optimized out>) at /usr/include/qt6/QtCore/qobjectdefs_impl.h:345
#18 QtPrivate::QCallableObject<BluetoothLinkProvider::serverNewConnection()::<lambda()>, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=<optimized out>, this_=0x72e88801fba0, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /usr/include/qt6/QtCore/qobjectdefs_impl.h:555
#19 0x000072e8949b2229 in QtPrivate::QSlotObjectBase::call (this=<optimized out>, r=<optimized out>, a=<optimized out>, this=<optimized out>, r=<optimized out>, a=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobjectdefs_impl.h:486
#20 doActivate<false> (sender=<optimized out>, signal_index=<optimized out>, argv=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobject.cpp:4120
#21 0x000072e8949b2229 in QtPrivate::QSlotObjectBase::call (this=<optimized out>, r=<optimized out>, a=<optimized out>, this=<optimized out>, r=<optimized out>, a=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobjectdefs_impl.h:486
#22 doActivate<false> (sender=<optimized out>, signal_index=<optimized out>, argv=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobject.cpp:4120
#23 0x000072e896455c7c in MultiplexChannelState::readyRead (this=<optimized out>) at /usr/src/debug/kdeconnect/build/core/kdeconnectcore_autogen/include/moc_multiplexchannelstate.cpp:215
#24 MultiplexChannel::disconnect (this=0x5732cf174e30) at /usr/src/debug/kdeconnect/kdeconnect-kde-24.08.2/core/backends/bluetooth/multiplexchannel.cpp:35
#25 0x000072e8949b2229 in QtPrivate::QSlotObjectBase::call (this=<optimized out>, r=<optimized out>, a=<optimized out>, this=<optimized out>, r=<optimized out>, a=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobjectdefs_impl.h:486
#26 doActivate<false> (sender=<optimized out>, signal_index=<optimized out>, argv=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobject.cpp:4120
#27 0x000072e896457697 in MultiplexChannelState::disconnected (this=<optimized out>) at /usr/src/debug/kdeconnect/build/core/kdeconnectcore_autogen/include/moc_multiplexchannelstate.cpp:234
#28 ConnectionMultiplexer::disconnected (this=0x5732cd7fc0a0) at /usr/src/debug/kdeconnect/kdeconnect-kde-24.08.2/core/backends/bluetooth/connectionmultiplexer.cpp:80
#29 0x000072e8949b2229 in QtPrivate::QSlotObjectBase::call (this=<optimized out>, r=<optimized out>, a=<optimized out>, this=<optimized out>, r=<optimized out>, a=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobjectdefs_impl.h:486
#30 doActivate<false> (sender=<optimized out>, signal_index=<optimized out>, argv=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobject.cpp:4120
#31 0x000072e89577fc8e in QBluetoothSocketPrivateBluez::abort (this=0x72e888017fc0) at /usr/src/debug/qt6-connectivity/qtconnectivity/src/bluetooth/qbluetoothsocket_bluez.cpp:381
#32 0x000072e8949b247a in doActivate<false> (sender=<optimized out>, signal_index=<optimized out>, argv=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobject.cpp:4132
#33 0x000072e8949bc708 in QSocketNotifier::activated (this=0x5732cf178530, _t1=..., _t2=<optimized out>, _t3=...) at /usr/src/debug/qt6-base/build/src/corelib/Core_autogen/include/moc_qsocketnotifier.cpp:195
#34 QSocketNotifier::event (this=0x5732cf178530, e=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qsocketnotifier.cpp:327
#35 0x000072e8958fe31a in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5732cf178530, e=0x7fffc7890d90) at /usr/src/debug/qt6-base/qtbase/src/widgets/kernel/qapplication.cpp:3294
#36 0x000072e8949585a8 in QCoreApplication::notifyInternal2 (receiver=0x5732cf178530, event=0x7fffc7890d90) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qcoreapplication.cpp:1165
#37 0x000072e894bc20f1 in QCoreApplication::sendEvent (receiver=<optimized out>, event=0x7fffc7890d90) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qcoreapplication.cpp:1609
#38 socketNotifierSourceDispatch (source=0x5732cd8edfb0) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:77
#39 0x000072e89374e559 in g_main_dispatch (context=0x72e888000f30) at ../glib/glib/gmain.c:3357
#40 0x000072e8937b1157 in g_main_context_dispatch_unlocked (context=0x72e888000f30) at ../glib/glib/gmain.c:4208
#41 g_main_context_iterate_unlocked.isra.0 (context=context@entry=0x72e888000f30, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/glib/gmain.c:4273
#42 0x000072e89374da55 in g_main_context_iteration (context=0x72e888000f30, may_block=1) at ../glib/glib/gmain.c:4338
#43 0x000072e894bbf71d in QEventDispatcherGlib::processEvents (this=0x5732cd912810, flags=...) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:396
#44 0x000072e894964566 in QEventLoop::processEvents (this=0x7fffc78910b0, flags=...) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventloop.cpp:100
#45 QEventLoop::exec (this=0x7fffc78910b0, flags=...) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventloop.cpp:191
#46 0x000072e894959a2f in QCoreApplication::exec () at /usr/src/debug/qt6-base/qtbase/src/corelib/global/qflags.h:74
#47 0x000072e8958fa74a in QApplication::exec () at /usr/src/debug/qt6-base/qtbase/src/widgets/kernel/qapplication.cpp:2562
#48 0x00005732a381c89c in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kdeconnect/kdeconnect-kde-24.08.2/daemon/kdeconnectd.cpp:196
Comment 3 ratijas 2024-11-24 14:10:37 UTC 
Same backtrace, Arch Linux, latest.

The fact that top 25 frames are pure Qt, makes me think that even if KDE Connect violates some preconditions in the code, Qt should double-check them better than this.  Just what on Earth is this QRingBuffer::chop (this=0x0) called from QIODevicePrivate::QRingBufferRef ??
Comment 5 cwo 2024-12-27 10:18:26 UTC 
Seems to be the same crash as BUG 486848 and has the same sentry issue linked.

*** This bug has been marked as a duplicate of bug 486848 ***
Comment 6 Rob Emery 2025-01-04 16:30:51 UTC 
(In reply to prasol258@gmail.com from comment #1)
> I'm aware bluetooth support is in beta, but this is exactly why im reporting
> this

I've been trying to reproduce this on my Neon laptop and I'm struggling; do you know what bluetooth hardware the system is running? I'm thinking it could be affected by the drivers.
Comment 7 Rob Emery 2025-01-04 19:04:56 UTC 
(In reply to ratijas from comment #3)
> Same backtrace, Arch Linux, latest.

Hmm, I've just tried to reproduce about 10 times on Arch. The workflow I've been trying is having the two devices paired and connected etc via bluetooth, sleep the laptop (launcher -> sleep), wait a few seconds, hit keys on the keyboard to wake the laptop up. It then takes a few seconds (highly variable) whilst bluetooth wakes up and the two devices see each other again etc, but I've not seen any crashes yet :/

I'm configured not to require login after wake from sleep, so it's about as quick-to-desktop as I can think. 

Is there anything different that you guys are doing that seems like it could be relevent? 

I think it might be a sideeffect of different sleep states on the bluetooth drivers. The Dell XPS13 9370 i5 I'm using to test has a Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter but it looks like the bluetooth is using btusb (readlink /sys/class/bluetooth/hci0/device/driver). Is bluetooth connected via PCIe on the machine you're experiencing the crashes on? Maybe it wakes more quickly.
Comment 8 prasol258@gmail.com 2025-01-04 23:08:53 UTC 
Actually the machine i tested on is not in working condition anymore lol

But I'm pretty sure it had a Realtek wifi card, and it always took it good 10 seconds to wake up and reconnect after suspend.
Comment 9 Rob Emery 2025-01-04 23:31:53 UTC 
(In reply to prasol258@gmail.com from comment #8)
> Actually the machine i tested on is not in working condition anymore lol
> 
> But I'm pretty sure it had a Realtek wifi card, and it always took it good
> 10 seconds to wake up and reconnect after suspend.

Ah, well that makes reproduction more entertaining then :)

Whereabouts in-time did the crash occur? Was it immediate (within 1 second) of waking or was it within the 10 or so seconds to reconnect etc?