https://bugs.kde.org/show_bug.cgi?id=489169
--- Comment #2 from Pavel Urusov <pavel.uru...@gmail.com> ---
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/libexec/org_kde_powerdevil'.
Program terminated with signal SIGABRT, Aborted.
#0 __pthread_kill_implementation (threadid=<optimized out>,
signo=signo@entry=6, 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 0x7f75d56006c0 (LWP 2544))]
Missing separate debuginfos, use: zypper install
libdrm_amdgpu1-debuginfo-2.4.121-1.1.x86_64
libpciaccess0-debuginfo-0.18.1-1.2.x86_64
libpolkit-gobject-1-0-debuginfo-123-2.3.x86_64
libsasl2-3-debuginfo-2.1.28-8.1.x86_64
libwayland-server0-debuginfo-1.23.0-1.1.x86_64
libxcb-dri2-0-debuginfo-1.17.0-1.1.x86_64
libxcb-dri3-0-debuginfo-1.17.0-1.1.x86_64
libxshmfence1-debuginfo-1.3.2-1.4.x86_64
(gdb) bt
#0 __pthread_kill_implementation (threadid=<optimized out>,
signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
#1 0x00007f75fd294a63 in __pthread_kill_internal (signo=6, threadid=<optimized
out>) at pthread_kill.c:78
#2 0x00007f75fd241176 in __GI_raise (sig=6) at ../sysdeps/posix/raise.c:26
#3 0x00007f75fee54c03 in KCrash::defaultCrashHandler (sig=6) at
/usr/src/debug/kcrash-6.3.0/src/kcrash.cpp:597
#4 <signal handler called>
#5 __pthread_kill_implementation (threadid=<optimized out>,
signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
#6 0x00007f75fd294a63 in __pthread_kill_internal (signo=6, threadid=<optimized
out>) at pthread_kill.c:78
#7 0x00007f75fd241176 in __GI_raise (sig=sig@entry=6) at
../sysdeps/posix/raise.c:26
#8 0x00007f75fd228917 in __GI_abort () at abort.c:79
#9 0x00007f75fc0d8025 in g_assertion_message
(domain=domain@entry=0x7f75fc17000e "GLib", file=file@entry=0x7f75fc1712f9
"../glib/ghash.c", line=line@entry=493, func=func@entry=0x7f75fc181870
<__func__.25> "g_hash_table_remove_node",
message=message@entry=0x7f75a00018b0 "assertion failed: (hash_table->nnodes
> 0)") at ../glib/gtestutils.c:3331
#10 0x00007f75fc13f77a in g_assertion_message_expr
(domain=domain@entry=0x7f75fc17000e "GLib", file=file@entry=0x7f75fc1712f9
"../glib/ghash.c", line=line@entry=493, func=func@entry=0x7f75fc181870
<__func__.25> "g_hash_table_remove_node",
expr=expr@entry=0x7f75fc1712e2 "hash_table->nnodes > 0") at
../glib/gtestutils.c:3357
#11 0x00007f75fc0fecff in g_hash_table_remove_node
(hash_table=hash_table@entry=0x56028d8b8360, i=i@entry=0,
notify=notify@entry=1) at ../glib/ghash.c:493
#12 0x00007f75fc100a27 in g_hash_table_remove_internal (notify=1,
key=0x7f75a0001880, key@entry=0x0, hash_table=0x56028d8b8360) at
../glib/ghash.c:1717
#13 g_hash_table_remove (hash_table=0x56028d8b8360,
key=key@entry=0x7f75a0001880) at ../glib/ghash.c:1745
#14 0x00007f75fd151702 in ddc_close_display (dh=0x7f75a0001880) at
ddc/ddc_packet_io.c:374
#15 0x00007f75fd192bcc in ddca_close_display (ddca_dh=0x7f75a0001880) at
libmain/api_displays.c:587
#16 0x00007f75fee161e6 in BrightnessWorker::ddcSetBrightness
(this=0x56028dadb890, value=<optimized out>, display=<optimized out>) at
/usr/src/debug/powerdevil-6.1.0/daemon/controllers/ddcutildisplay.cpp:159
#17 0x00007f75fdbd1fbb in QObject::event (this=0x56028dadb890,
e=0x56028dbd6970) at
/usr/src/debug/qtbase-everywhere-src-6.7.1/src/corelib/kernel/qobject.cpp:1452
#18 0x00007f75fdb8ee20 in QCoreApplication::notifyInternal2
(receiver=0x56028dadb890, event=0x56028dbd6970) at
/usr/src/debug/qtbase-everywhere-src-6.7.1/src/corelib/kernel/qcoreapplication.cpp:1134
#19 0x00007f75fdb8ee59 in QCoreApplication::sendEvent (receiver=<optimized
out>, event=<optimized out>) at
/usr/src/debug/qtbase-everywhere-src-6.7.1/src/corelib/kernel/qcoreapplication.cpp:1575
#20 0x00007f75fdb8f180 in QCoreApplicationPrivate::sendPostedEvents
(receiver=0x0, event_type=0, data=0x56028dada510) at
/usr/src/debug/qtbase-everywhere-src-6.7.1/src/corelib/kernel/qcoreapplication.cpp:1932
#21 0x00007f75fddc2973 in postEventSourceDispatch (s=0x7f75a0000f20) at
/usr/src/debug/qtbase-everywhere-src-6.7.1/src/corelib/kernel/qeventdispatcher_glib.cpp:244
#22 0x00007f75fc112740 in g_main_dispatch (context=0x7f75a0000c60) at
../glib/gmain.c:3344
#23 g_main_context_dispatch_unlocked (context=context@entry=0x7f75a0000c60) at
../glib/gmain.c:4152
#24 0x00007f75fc114388 in g_main_context_iterate_unlocked
(context=context@entry=0x7f75a0000c60, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4217
#25 0x00007f75fc114a3c in g_main_context_iteration (context=0x7f75a0000c60,
may_block=1) at ../glib/gmain.c:4282
#26 0x00007f75fddc147c in QEventDispatcherGlib::processEvents
(this=0x7f75a0000b70, flags=...) at
/usr/src/debug/qtbase-everywhere-src-6.7.1/src/corelib/kernel/qeventdispatcher_glib.cpp:394
#27 0x00007f75fdb9959b in QEventLoop::exec (this=0x7f75d55ffaa0, flags=...) at
/usr/src/debug/qtbase-everywhere-src-6.7.1/src/corelib/global/qflags.h:34
#28 0x00007f75fdc74ad4 in QThread::exec (this=<optimized out>) at
/usr/src/debug/qtbase-everywhere-src-6.7.1/src/corelib/global/qflags.h:74
#29 0x00007f75fdced139 in operator() (__closure=<optimized out>) at
/usr/src/debug/qtbase-everywhere-src-6.7.1/src/corelib/thread/qthread_unix.cpp:326
#30 (anonymous
namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> >
(t=...) at
/usr/src/debug/qtbase-everywhere-src-6.7.1/src/corelib/thread/qthread_unix.cpp:262
#31 QThreadPrivate::start (arg=0x56028dafe960) at
/usr/src/debug/qtbase-everywhere-src-6.7.1/src/corelib/thread/qthread_unix.cpp:285
#32 0x00007f75fd292ba2 in start_thread (arg=<optimized out>) at
pthread_create.c:447
#33 0x00007f75fd31400c in clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
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