https://bugs.kde.org/show_bug.cgi?id=430111

--- Comment #2 from el...@seznam.cz ---
Sure thing. I'm attaching last 3 stack traces. Not sure if they are the same.

dec 07 15:08:16 hostname systemd-coredump[4656]: Process 4379 (plasmashell) of
user 1000 dumped core.

       Stack trace of thread 4379:
       #0  0x00007fc06a106615 raise (libc.so.6 + 0x3d615)
       #1  0x00007fc06ba150e6 _ZN6KCrash19defaultCrashHandlerEi
(libKF5Crash.so.5 + 0x40e6)
       #2  0x00007fc06a1066a0 __restore_rt (libc.so.6 + 0x3d6a0)
       #3  0x00007fc06b144d7e _ZNK12KConfigGroup6parentEv
(libKF5ConfigCore.so.5 + 0x2ad7e)
       #4  0x000055fde9c87cc4 n/a (plasmashell + 0x34cc4)
       #5  0x000055fde9c8801e n/a (plasmashell + 0x3501e)
       #6  0x00007fc06a75de10 n/a (libQt5Core.so.5 + 0x2ece10)
       #7  0x00007fc06c8ef3ad n/a (libKF5PlasmaQuick.so.5 + 0x2d3ad)
       #8  0x000055fde9c92587 n/a (plasmashell + 0x3f587)
       #9  0x00007fc06a75ddd6 n/a (libQt5Core.so.5 + 0x2ecdd6)
       #10 0x00007fc06a761e4b _ZN6QTimer7timeoutENS_14QPrivateSignalE
(libQt5Core.so.5 + 0x2f0e4b)
       #11 0x00007fc06a7534bf _ZN7QObject5eventEP6QEvent (libQt5Core.so.5 +
0x2e24bf)
       #12 0x00007fc06b3c1752
_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5 +
0x15a752)
       #13 0x00007fc06a726a7a
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5 +
0x2b5a7a)
       #14 0x00007fc06a77ea65 _ZN14QTimerInfoList14activateTimersEv
(libQt5Core.so.5 + 0x30da65)
       #15 0x00007fc06a77f312 n/a (libQt5Core.so.5 + 0x30e312)
       #16 0x00007fc068b548f4 g_main_context_dispatch (libglib-2.0.so.0 +
0x528f4)
       #17 0x00007fc068ba8821 n/a (libglib-2.0.so.0 + 0xa6821)
       #18 0x00007fc068b53121 g_main_context_iteration (libglib-2.0.so.0 +
0x51121)
       #19 0x00007fc06a77f6e1
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x30e6e1)
       #20 0x00007fc06a7253fc
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2b43fc)
       #21 0x00007fc06a72d894 _ZN16QCoreApplication4execEv (libQt5Core.so.5 +
0x2bc894)
       #22 0x000055fde9c72069 n/a (plasmashell + 0x1f069)
       #23 0x00007fc06a0f1152 __libc_start_main (libc.so.6 + 0x28152)
       #24 0x000055fde9c722ae n/a (plasmashell + 0x1f2ae)

       Stack trace of thread 4510:
       #0  0x00007fc06a1be46f __poll (libc.so.6 + 0xf546f)
       #1  0x00007fc068ba87af n/a (libglib-2.0.so.0 + 0xa67af)
       #2  0x00007fc068b53121 g_main_context_iteration (libglib-2.0.so.0 +
0x51121)
       #3  0x00007fc06a77f6fc
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x30e6fc)
       #4  0x00007fc06a7253fc
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2b43fc)
       #5  0x00007fc06a53dd22 _ZN7QThread4execEv (libQt5Core.so.5 + 0xccd22)
       #6  0x00007fc06c0ce1eb n/a (libQt5Quick.so.5 + 0x1471eb)
       #7  0x00007fc06a53ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #8  0x00007fc06958c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #9  0x00007fc06a1c9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4489:
       #0  0x00007fc0695926a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007fc05d8e1eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007fc05d8e1da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007fc06958c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007fc06a1c9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4468:
       #0  0x00007fc06a14e93f __libc_disable_asynccancel (libc.so.6 + 0x8593f)
       #1  0x00007fc06a1b9f11 __read (libc.so.6 + 0xf0f11)
       #2  0x00007fc068b54f70 g_main_context_check (libglib-2.0.so.0 + 0x52f70)
       #3  0x00007fc068ba86b2 n/a (libglib-2.0.so.0 + 0xa66b2)
       #4  0x00007fc068b53121 g_main_context_iteration (libglib-2.0.so.0 +
0x51121)
       #5  0x00007fc06a77f6fc
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x30e6fc)
       #6  0x00007fc06a7253fc
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2b43fc)
       #7  0x00007fc06a53dd22 _ZN7QThread4execEv (libQt5Core.so.5 + 0xccd22)
       #8  0x00007fc06bd265a9 n/a (libQt5Qml.so.5 + 0x30b5a9)
       #9  0x00007fc06a53ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #10 0x00007fc06958c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #11 0x00007fc06a1c9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4432:
       #0  0x00007fc068b512e8 n/a (libglib-2.0.so.0 + 0x4f2e8)
       #1  0x00007fc068b516d6 n/a (libglib-2.0.so.0 + 0x4f6d6)
       #2  0x00007fc068b5439b g_main_context_prepare (libglib-2.0.so.0 +
0x5239b)
       #3  0x00007fc068ba8626 n/a (libglib-2.0.so.0 + 0xa6626)
       #4  0x00007fc068b53121 g_main_context_iteration (libglib-2.0.so.0 +
0x51121)
       #5  0x00007fc06a77f6fc
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x30e6fc)
       #6  0x00007fc06a7253fc
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2b43fc)
       #7  0x00007fc06a53dd22 _ZN7QThread4execEv (libQt5Core.so.5 + 0xccd22)
       #8  0x00007fc06b0ab098 n/a (libQt5DBus.so.5 + 0x17098)
       #9  0x00007fc06a53ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #10 0x00007fc06958c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #11 0x00007fc06a1c9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4509:
       #0  0x00007fc0695926a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007fc06a5450d4 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer
(libQt5Core.so.5 + 0xd40d4)
       #2  0x00007fc06c17d33b n/a (libQt5Quick.so.5 + 0x1f633b)
       #3  0x00007fc06c17f8db n/a (libQt5Quick.so.5 + 0x1f88db)
       #4  0x00007fc06a53ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #5  0x00007fc06958c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #6  0x00007fc06a1c9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4491:
       #0  0x00007fc0695926a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007fc05d8e1eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007fc05d8e1da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007fc06958c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007fc06a1c9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4514:
       #0  0x00007fc0695926a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007fc06a5450d4 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer
(libQt5Core.so.5 + 0xd40d4)
       #2  0x00007fc06c17d33b n/a (libQt5Quick.so.5 + 0x1f633b)
       #3  0x00007fc06c17f8db n/a (libQt5Quick.so.5 + 0x1f88db)
       #4  0x00007fc06a53ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #5  0x00007fc06958c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #6  0x00007fc06a1c9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4488:
       #0  0x00007fc0695926a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007fc05d8e1eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007fc05d8e1da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007fc06958c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007fc06a1c9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4490:
       #0  0x00007fc0695926a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007fc05d8e1eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007fc05d8e1da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007fc06958c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007fc06a1c9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4513:
       #0  0x00007fc0695926a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007fc06a5450d4 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer
(libQt5Core.so.5 + 0xd40d4)
       #2  0x00007fc06c17d33b n/a (libQt5Quick.so.5 + 0x1f633b)
       #3  0x00007fc06c17f8db n/a (libQt5Quick.so.5 + 0x1f88db)
       #4  0x00007fc06a53ef0f n/a (libQt5Core.so.5 + 0xcdf0f)

#5  0x00007fc06958c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #6  0x00007fc06a1c9293 __clone (libc.so.6 + 0x100293)
dec 07 15:09:31 hostname systemd-coredump[4690]: Process 4300 (Xwayland) of
user 1000 dumped core.

       Stack trace of thread 4300:
       #0  0x00007f9411e3a615 raise (libc.so.6 + 0x3d615)
       #1  0x00007f9411e23862 abort (libc.so.6 + 0x26862)
       #2  0x000055ea33e5dee8 n/a (Xwayland + 0x157ee8)
       #3  0x000055ea33e670ec n/a (Xwayland + 0x1610ec)
       #4  0x000055ea33e5c303 n/a (Xwayland + 0x156303)
       #5  0x00007f9411e3a6a0 __restore_rt (libc.so.6 + 0x3d6a0)
       #6  0x000055ea33d3cbdf n/a (Xwayland + 0x36bdf)
       #7  0x00007f9411cfdacd n/a (libffi.so.7 + 0x6acd)
       #8  0x00007f9411cfd03a n/a (libffi.so.7 + 0x603a)
       #9  0x00007f9412374e92 n/a (libwayland-client.so.0 + 0x9e92)
       #10 0x00007f94123716c1 n/a (libwayland-client.so.0 + 0x66c1)
       #11 0x00007f9412372ccc wl_display_dispatch_queue_pending
(libwayland-client.so.0 + 0x7ccc)
       #12 0x000055ea33d3d54b n/a (Xwayland + 0x3754b)
       #13 0x000055ea33e5d921 n/a (Xwayland + 0x157921)
       #14 0x000055ea33da08c0 n/a (Xwayland + 0x9a8c0)
       #15 0x000055ea33d36626 n/a (Xwayland + 0x30626)
       #16 0x00007f9411e25152 __libc_start_main (libc.so.6 + 0x28152)
       #17 0x000055ea33d378fe n/a (Xwayland + 0x318fe)

       Stack trace of thread 4307:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f9410235eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007f9410235da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4311:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103d0314 n/a (iris_dri.so + 0x66d314)
       #2  0x00007f94103b75b8 n/a (iris_dri.so + 0x6545b8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4326:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103bb834 n/a (iris_dri.so + 0x658834)
       #2  0x00007f94103b7588 n/a (iris_dri.so + 0x654588)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4323:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103bb834 n/a (iris_dri.so + 0x658834)
       #2  0x00007f94103b7588 n/a (iris_dri.so + 0x654588)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4317:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103d0314 n/a (iris_dri.so + 0x66d314)
       #2  0x00007f94103b75b8 n/a (iris_dri.so + 0x6545b8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4310:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f9410235eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007f9410235da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4313:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103d0314 n/a (iris_dri.so + 0x66d314)
       #2  0x00007f94103b75b8 n/a (iris_dri.so + 0x6545b8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4316:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103d0314 n/a (iris_dri.so + 0x66d314)
       #2  0x00007f94103b75b8 n/a (iris_dri.so + 0x6545b8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4314:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103d0314 n/a (iris_dri.so + 0x66d314)
       #2  0x00007f94103b75b8 n/a (iris_dri.so + 0x6545b8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4312:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103d0314 n/a (iris_dri.so + 0x66d314)
       #2  0x00007f94103b75b8 n/a (iris_dri.so + 0x6545b8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4318:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103d0314 n/a (iris_dri.so + 0x66d314)
       #2  0x00007f94103b75b8 n/a (iris_dri.so + 0x6545b8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4315:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103d0314 n/a (iris_dri.so + 0x66d314)
       #2  0x00007f94103b75b8 n/a (iris_dri.so + 0x6545b8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4319:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103bb834 n/a (iris_dri.so + 0x658834)
       #2  0x00007f94103b7588 n/a (iris_dri.so + 0x654588)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4320:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103bb834 n/a (iris_dri.so + 0x658834)
       #2  0x00007f94103b7588 n/a (iris_dri.so + 0x654588)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4329:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f9410235eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007f9410235da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4321:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103bb834 n/a (iris_dri.so + 0x658834)
       #2  0x00007f94103b7588 n/a (iris_dri.so + 0x654588)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4325:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103bb834 n/a (iris_dri.so + 0x658834)
       #2  0x00007f94103b7588 n/a (iris_dri.so + 0x654588)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4322:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103bb834 n/a (iris_dri.so + 0x658834)
       #2  0x00007f94103b7588 n/a (iris_dri.so + 0x654588)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4309:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f9410235eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007f9410235da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4324:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f94103bb834 n/a (iris_dri.so + 0x658834)
       #2  0x00007f94103b7588 n/a (iris_dri.so + 0x654588)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4327:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f9410235eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007f9410235da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4328:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f9410235eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007f9410235da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4330:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f9410235eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007f9410235da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4308:
       #0  0x00007f9411ce46a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007f9410235eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007f9410235da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007f9411cde3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007f9411efd293 __clone (libc.so.6 + 0x100293)
dec 07 15:09:34 hostname systemd-coredump[4709]: Process 4517 (plasmashell) of
user 1000 dumped core.

       Stack trace of thread 4517:
       #0  0x00007fb8427f6615 raise (libc.so.6 + 0x3d615)
       #1  0x00007fb8427f66a0 __restore_rt (libc.so.6 + 0x3d6a0)
       #2  0x00007fb83de89b3a
_ZN9QtWayland9wl_output12handle_scaleEPvP9wl_outputi (libQt5WaylandClient.so.5
+ 0x92b3a)
       #3  0x00007fb840ea3acd n/a (libffi.so.7 + 0x6acd)
       #4  0x00007fb840ea303a n/a (libffi.so.7 + 0x603a)
       #5  0x00007fb8426c3e92 n/a (libwayland-client.so.0 + 0x9e92)
       #6  0x00007fb8426c06c1 n/a (libwayland-client.so.0 + 0x66c1)
       #7  0x00007fb8426c1ccc wl_display_dispatch_queue_pending
(libwayland-client.so.0 + 0x7ccc)
       #8  0x00007fb83de6844d
_ZN15QtWaylandClient15QWaylandDisplay13flushRequestsEv
(libQt5WaylandClient.so.5 + 0x7144d)
       #9  0x00007fb842e4de10 n/a (libQt5Core.so.5 + 0x2ece10)
       #10 0x00007fb842e51340
_ZN15QSocketNotifier9activatedE17QSocketDescriptorNS_4TypeENS_14QPrivateSignalE
(libQt5Core.so.5 + 0x2f0340)
       #11 0x00007fb842e51b4d _ZN15QSocketNotifier5eventEP6QEvent
(libQt5Core.so.5 + 0x2f0b4d)
       #12 0x00007fb843ab1752
_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5 +
0x15a752)
       #13 0x00007fb842e16a7a
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5 +
0x2b5a7a)
       #14 0x00007fb842e702f6 n/a (libQt5Core.so.5 + 0x30f2f6)
       #15 0x00007fb8412448f4 g_main_context_dispatch (libglib-2.0.so.0 +
0x528f4)
       #16 0x00007fb841298821 n/a (libglib-2.0.so.0 + 0xa6821)
       #17 0x00007fb841243121 g_main_context_iteration (libglib-2.0.so.0 +
0x51121)
       #18 0x00007fb842e6f6e1
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x30e6e1)
       #19 0x00007fb842e153fc
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2b43fc)
       #20 0x00007fb842e1d894 _ZN16QCoreApplication4execEv (libQt5Core.so.5 +
0x2bc894)
       #21 0x000055f4c8120069 n/a (plasmashell + 0x1f069)
       #22 0x00007fb8427e1152 __libc_start_main (libc.so.6 + 0x28152)
       #23 0x000055f4c81202ae n/a (plasmashell + 0x1f2ae)

       Stack trace of thread 4682:
       #0  0x00007fb841c829c8 pthread_cond_timedwait@@GLIBC_2.3.2
(libpthread.so.0 + 0xf9c8)
       #1  0x00007fb842c35058 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer
(libQt5Core.so.5 + 0xd4058)
       #2  0x00007fb842c32504 n/a (libQt5Core.so.5 + 0xd1504)
       #3  0x00007fb842c2ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #4  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #5  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4533:
       #0  0x00007fb8428ae46f __poll (libc.so.6 + 0xf546f)
       #1  0x00007fb8412987af n/a (libglib-2.0.so.0 + 0xa67af)
       #2  0x00007fb841243121 g_main_context_iteration (libglib-2.0.so.0 +
0x51121)
       #3  0x00007fb842e6f6e1
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x30e6e1)
       #4  0x00007fb842e153fc
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2b43fc)
       #5  0x00007fb842c2dd22 _ZN7QThread4execEv (libQt5Core.so.5 + 0xccd22)
       #6  0x00007fb8447be1eb n/a (libQt5Quick.so.5 + 0x1471eb)
       #7  0x00007fb842c2ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #8  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #9  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4521:
       #0  0x00007fb8428ae46f __poll (libc.so.6 + 0xf546f)
       #1  0x00007fb8412987af n/a (libglib-2.0.so.0 + 0xa67af)
       #2  0x00007fb841243121 g_main_context_iteration (libglib-2.0.so.0 +
0x51121)
       #3  0x00007fb842e6f6e1
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x30e6e1)
       #4  0x00007fb842e153fc
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2b43fc)
       #5  0x00007fb842c2dd22 _ZN7QThread4execEv (libQt5Core.so.5 + 0xccd22)
       #6  0x00007fb84379b098 n/a (libQt5DBus.so.5 + 0x17098)
       #7  0x00007fb842c2ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #8  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #9  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4524:
       #0  0x00007fb8428ae46f __poll (libc.so.6 + 0xf546f)
       #1  0x00007fb8412987af n/a (libglib-2.0.so.0 + 0xa67af)
       #2  0x00007fb841243121 g_main_context_iteration (libglib-2.0.so.0 +
0x51121)
       #3  0x00007fb842e6f6e1
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x30e6e1)
       #4  0x00007fb842e153fc
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2b43fc)
       #5  0x00007fb842c2dd22 _ZN7QThread4execEv (libQt5Core.so.5 + 0xccd22)
       #6  0x00007fb8444165a9 n/a (libQt5Qml.so.5 + 0x30b5a9)
       #7  0x00007fb842c2ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #8  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #9  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4683:
       #0  0x00007fb841c829c8 pthread_cond_timedwait@@GLIBC_2.3.2
(libpthread.so.0 + 0xf9c8)
       #1  0x00007fb842c35058 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer
(libQt5Core.so.5 + 0xd4058)
       #2  0x00007fb842c32504 n/a (libQt5Core.so.5 + 0xd1504)
       #3  0x00007fb842c2ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #4  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #5  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4681:
       #0  0x00007fb841c829c8 pthread_cond_timedwait@@GLIBC_2.3.2
(libpthread.so.0 + 0xf9c8)
       #1  0x00007fb842c35058 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer
(libQt5Core.so.5 + 0xd4058)
       #2  0x00007fb842c32504 n/a (libQt5Core.so.5 + 0xd1504)
       #3  0x00007fb842c2ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #4  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #5  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4678:
       #0  0x00007fb841c829c8 pthread_cond_timedwait@@GLIBC_2.3.2
(libpthread.so.0 + 0xf9c8)
       #1  0x00007fb842c35058 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer
(libQt5Core.so.5 + 0xd4058)
       #2  0x00007fb842c32504 n/a (libQt5Core.so.5 + 0xd1504)
       #3  0x00007fb842c2ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #4  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #5  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4680:
       #0  0x00007fb841c829c8 pthread_cond_timedwait@@GLIBC_2.3.2
(libpthread.so.0 + 0xf9c8)
       #1  0x00007fb842c35058 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer
(libQt5Core.so.5 + 0xd4058)
       #2  0x00007fb842c32504 n/a (libQt5Core.so.5 + 0xd1504)
       #3  0x00007fb842c2ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #4  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #5  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4684:
       #0  0x00007fb841c829c8 pthread_cond_timedwait@@GLIBC_2.3.2
(libpthread.so.0 + 0xf9c8)
       #1  0x00007fb842c35058 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer
(libQt5Core.so.5 + 0xd4058)
       #2  0x00007fb842c32504 n/a (libQt5Core.so.5 + 0xd1504)
       #3  0x00007fb842c2ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #4  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #5  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4679:
       #0  0x00007fb841c829c8 pthread_cond_timedwait@@GLIBC_2.3.2
(libpthread.so.0 + 0xf9c8)
       #1  0x00007fb842c35058 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer
(libQt5Core.so.5 + 0xd4058)
       #2  0x00007fb842c32504 n/a (libQt5Core.so.5 + 0xd1504)
       #3  0x00007fb842c2ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #4  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #5  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4542:
       #0  0x00007fb841c826a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007fb842c350d4 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer
(libQt5Core.so.5 + 0xd40d4)
       #2  0x00007fb84486d33b n/a (libQt5Quick.so.5 + 0x1f633b)
       #3  0x00007fb84486f8db n/a (libQt5Quick.so.5 + 0x1f88db)
       #4  0x00007fb842c2ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #5  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #6  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4528:
       #0  0x00007fb841c826a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007fb835fd3eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007fb835fd3da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4526:
       #0  0x00007fb841c826a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007fb835fd3eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007fb835fd3da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4525:
       #0  0x00007fb841c826a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007fb835fd3eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007fb835fd3da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4527:
       #0  0x00007fb841c826a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007fb835fd3eac n/a (iris_dri.so + 0x4d2eac)
       #2  0x00007fb835fd3da8 n/a (iris_dri.so + 0x4d2da8)
       #3  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4547:
       #0  0x00007fb8428b0c96 pselect (libc.so.6 + 0xf7c96)
       #1  0x00007fb840eab524 n/a (libusbmuxd-2.0.so.6 + 0x2524)
       #2  0x00007fb840eac8a9 n/a (libusbmuxd-2.0.so.6 + 0x38a9)
       #3  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #4  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4548:
       #0  0x00007fb8428ae46f __poll (libc.so.6 + 0xf546f)
       #1  0x00007fb8412987af n/a (libglib-2.0.so.0 + 0xa67af)
       #2  0x00007fb841243121 g_main_context_iteration (libglib-2.0.so.0 +
0x51121)
       #3  0x00007fb842e6f6e1
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x30e6e1)
       #4  0x00007fb842e153fc
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2b43fc)
       #5  0x00007fb842c2dd22 _ZN7QThread4execEv (libQt5Core.so.5 + 0xccd22)
       #6  0x00007fb842c2ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #7  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #8  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4550:
       #0  0x00007fb8428ae46f __poll (libc.so.6 + 0xf546f)
       #1  0x00007fb8412987af n/a (libglib-2.0.so.0 + 0xa67af)
       #2  0x00007fb841243121 g_main_context_iteration (libglib-2.0.so.0 +
0x51121)
       #3  0x00007fb842e6f6e1
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x30e6e1)
       #4  0x00007fb842e153fc
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2b43fc)
       #5  0x00007fb842c2dd22 _ZN7QThread4execEv (libQt5Core.so.5 + 0xccd22)
       #6  0x00007fb7d3f1cbab _ZN15KCupsConnection3runEv (libkcupslib.so +
0x20bab)
       #7  0x00007fb842c2ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #8  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #9  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4557:
       #0  0x00007fb841c826a2 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 +
0xf6a2)
       #1  0x00007fb842c350d4 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer
(libQt5Core.so.5 + 0xd40d4)
       #2  0x00007fb84486d33b n/a (libQt5Quick.so.5 + 0x1f633b)
       #3  0x00007fb84486f8db n/a (libQt5Quick.so.5 + 0x1f88db)
       #4  0x00007fb842c2ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #5  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #6  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

       Stack trace of thread 4685:
       #0  0x00007fb841c829c8 pthread_cond_timedwait@@GLIBC_2.3.2
(libpthread.so.0 + 0xf9c8)
       #1  0x00007fb842c35058 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer
(libQt5Core.so.5 + 0xd4058)
       #2  0x00007fb842c32504 n/a (libQt5Core.so.5 + 0xd1504)
       #3  0x00007fb842c2ef0f n/a (libQt5Core.so.5 + 0xcdf0f)
       #4  0x00007fb841c7c3e9 start_thread (libpthread.so.0 + 0x93e9)
       #5  0x00007fb8428b9293 __clone (libc.so.6 + 0x100293)

dec 07 15:10:03 hostname login[1291]: pam_systemd(login:session): Failed to
release session: Interrupted system call

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