Bug 513280

Application: plasmashell (6.5.4)

ApplicationNotResponding [ANR]: false
Qt Version: 6.10.1
Frameworks Version: 6.21.0
Operating System: Linux 6.17.11-300.fc43.x86_64 x86_64
Windowing System: Wayland
Distribution: "Fedora release 43 (Forty Three)"
DrKonqi: 6.5.4 [CoredumpBackend]

-- Information about the crash:
thorium browser was active in one desktop
ferdium was running and a kconsole was running. 
I walked away, the screen was locked

The crash can be reproduced every time.

-- Backtrace (Reduced):
#5  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
#6  0x00007f1ecac80493 in __pthread_kill_internal (threadid=<optimized out>, signo=6) at pthread_kill.c:89
#7  0x00007f1ecac2618e in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#8  0x00007f1ecac0d6d0 in __GI_abort () at abort.c:77
#9  0x00007f1ecb21b204 in qAbort () at /usr/src/debug/qt6-qtbase-6.10.1-2.fc43.x86_64/src/corelib/global/qassert.cpp:46
#10 0x00007f1ecb26fdf9 in qt_maybe_message_fatal<QString&> (msgType=QtFatalMsg, context=<optimized out>, message=...) at /usr/src/debug/qt6-qtbase-6.10.1-2.fc43.x86_64/src/corelib/global/qlogging.cpp:2166
[...]
#12 0x00007f1ecb21c996 in QMessageLogger::fatal (this=this@entry=0x7ffeaa478200, msg=msg@entry=0x7f1e998d8a70 "KWaylandBackend: no output modes available anymore, this seems like a compositor bug") at /usr/src/debug/qt6-qtbase-6.10.1-2.fc43.x86_64/src/corelib/global/qlogging.cpp:901
#13 0x00007f1e998c2ed0 in operator() (__closure=<optimized out>) at /usr/src/debug/libkscreen-6.5.4-1.fc43.x86_64/backends/kwayland/waylandoutputdevice.cpp:73
#14 operator() (__closure=<optimized out>) at /usr/include/qt6/QtCore/qobjectdefs_impl.h:116
#18 QtPrivate::QCallableObject<KScreen::WaylandOutputDevice::kde_output_device_v2_mode(kde_output_device_mode_v2*)::<lambda()>, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=<optimized out>, this_=<optimized out>, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /usr/include/qt6/QtCore/qobjectdefs_impl.h:547
#19 0x00007f1ecb36759a in QtPrivate::QSlotObjectBase::call (this=0x5573b493e140, r=0x5573b45d9420, a=0x7ffeaa4782b8) at /usr/src/debug/qt6-qtbase-6.10.1-2.fc43.x86_64/src/corelib/kernel/qobjectdefs_impl.h:461
#20 doActivate<false> (sender=0x5573b493e070, signal_index=<optimized out>, argv=<optimized out>) at /usr/src/debug/qt6-qtbase-6.10.1-2.fc43.x86_64/src/corelib/kernel/qobject.cpp:4257
#21 0x00007f1ecd600056 in ffi_call_unix64 () at ../src/x86/unix64.S:104
#22 0x00007f1ecd5fbd16 in ffi_call_int (cif=cif@entry=0x7ffeaa4784c0, fn=fn@entry=0x7f1e998c3330 <QtWayland::kde_output_device_mode_v2::handle_removed(void*, kde_output_device_mode_v2*)>, rvalue=<optimized out>, rvalue@entry=0x0, avalue=avalue@entry=0x7ffeaa478590, closure=closure@entry=0x0) at ../src/x86/ffi64.c:676
#23 0x00007f1ecd5fe7ae in ffi_call (cif=cif@entry=0x7ffeaa4784c0, fn=0x7f1e998c3330 <QtWayland::kde_output_device_mode_v2::handle_removed(void*, kde_output_device_mode_v2*)>, rvalue=rvalue@entry=0x0, avalue=avalue@entry=0x7ffeaa478590) at ../src/x86/ffi64.c:713
#24 0x00007f1ece418feb in wl_closure_invoke (closure=closure@entry=0x7f1eac038320, target=<optimized out>, target@entry=0x7f1eac020d60, opcode=opcode@entry=3, data=<optimized out>, flags=1) at ../src/connection.c:1241


Reported using DrKonqi