Bug 502879

Summary: Crashes in KSysGuard::CGroup::setPids() when scrolling after killing processes
Product: [Applications] plasma-systemmonitor Reporter: Ivan <uo0mryscg>
Component: generalAssignee: KSysGuard Developers <ksysguard-bugs>
Status: REPORTED ---    
Severity: crash CC: ahiemstra, nate, plasma-bugs-null
Priority: NOR Keywords: drkonqi
Version First Reported In: 6.3.4   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report: https://crash-reports.kde.org/organizations/kde/issues/164003/events/f9c1a352d2ee4bf79354a0b31976bfa1/

Description Ivan 2025-04-16 14:51:50 UTC 
Application: plasma-systemmonitor (6.3.4)

ApplicationNotResponding [ANR]: false
Qt Version: 6.8.2
Frameworks Version: 6.13.0
Operating System: Linux 6.14.2-300.fc42.x86_64 x86_64
Windowing System: Wayland
Distribution: "Fedora Linux 42 (KDE Plasma Desktop Edition)"
DrKonqi: 6.3.4 [CoredumpBackend]

-- Information about the crash:
System monitor was open while Im play the game. After game freezes I open system monitor to kill process.

For the first I find process in Apps by select Steam to view its subprocesses. Then I switched to Processes and tried to Shutdown process but nothing happend even for a few tries.
Second, I tried to kill by sending KILL signal and it works.

After that, I just scroll between sections (Apps, History, Processes) to make sure that the game fully closed. And System monitor crashed suddnely.

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: Системный монитор (plasma-systemmonitor), signal: Segmentation fault


This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.fedoraproject.org/>
Enable debuginfod for this session? (y or [n]) [answered N; input not from terminal]
Debuginfod has been disabled.
To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit.

warning: Can't open file anon_inode:i915.gem during file-backed mapping note processing

warning: Can't open file /memfd:unknown-usage:QtQml (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:JITCode:QtQml (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:JSGCHeap:QtQml (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:kwin-dmabuf-feedback-table (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:JSVMStack:QtQml (deleted) during file-backed mapping note processing
[New LWP 21796]
[New LWP 21803]
[New LWP 56298]
[New LWP 56296]
[New LWP 56297]
[New LWP 55846]
[New LWP 21815]
[New LWP 21804]
[New LWP 21802]
[New LWP 55844]
[New LWP 21810]
[New LWP 55847]
[New LWP 21819]
[New LWP 55845]
[New LWP 50143]
[New LWP 56299]
[New LWP 21801]
[New LWP 21816]
[New LWP 21818]
[New LWP 21805]
[New LWP 21817]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/bin/plasma-systemmonitor'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f87e348027c in __pthread_kill_implementation () from /lib64/libc.so.6
[Current thread is 1 (Thread 0x7f87df1a2d40 (LWP 21796))]
Function(s) ^std::(move|forward|as_const|(__)?addressof) will be skipped when stepping.
Function(s) ^std::(shared|unique)_ptr<.*>::(get|operator) will be skipped when stepping.
Function(s) ^std::(basic_string|vector|array|deque|(forward_)?list|(unordered_|flat_)?(multi)?(map|set)|span)<.*>::(c?r?(begin|end)|front|back|data|size|empty) will be skipped when stepping.
Function(s) ^std::(basic_string|vector|array|deque|span)<.*>::operator.] will be skipped when stepping.
Cannot QML trace cores :(
/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py:547: 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:564: 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 0x7f87df1a2d40 (LWP 21796))]

Thread 21 (Thread 0x7f879f7fe6c0 (LWP 21817)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347d81e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87b593479d in cnd_wait () from /lib64/libgallium-25.0.2.so
#5  0x00007f87b58ef26c in util_queue_thread_func () from /lib64/libgallium-25.0.2.so
#6  0x00007f87b59346cc in impl_thrd_routine () from /lib64/libgallium-25.0.2.so
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 20 (Thread 0x7f87c15fe6c0 (LWP 21805)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347d81e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87b593479d in cnd_wait () from /lib64/libgallium-25.0.2.so
#5  0x00007f87b58ef26c in util_queue_thread_func () from /lib64/libgallium-25.0.2.so
#6  0x00007f87b59346cc in impl_thrd_routine () from /lib64/libgallium-25.0.2.so
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 19 (Thread 0x7f879dd4e6c0 (LWP 21818)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347d81e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87b593479d in cnd_wait () from /lib64/libgallium-25.0.2.so
#5  0x00007f87b58ef26c in util_queue_thread_func () from /lib64/libgallium-25.0.2.so
#6  0x00007f87b59346cc in impl_thrd_routine () from /lib64/libgallium-25.0.2.so
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 18 (Thread 0x7f879ffff6c0 (LWP 21816)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347d81e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87b593479d in cnd_wait () from /lib64/libgallium-25.0.2.so
#5  0x00007f87b58ef26c in util_queue_thread_func () from /lib64/libgallium-25.0.2.so
#6  0x00007f87b59346cc in impl_thrd_routine () from /lib64/libgallium-25.0.2.so
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 17 (Thread 0x7f87d10fb6c0 (LWP 21801)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347ab04 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007f87e34f4ce6 in ppoll () from /lib64/libc.so.6
#4  0x00007f87e30ce210 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#5  0x00007f87e30ce2d3 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#6  0x00007f87e3df6cc3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#7  0x00007f87e3b026d3 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#8  0x00007f87e3c1eb2f in QThread::exec() () from /lib64/libQt6Core.so.6
#9  0x00007f87e494f981 in QDBusConnectionManager::run() () from /lib64/libQt6DBus.so.6
#10 0x00007f87e3cbb6d0 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#12 0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 16 (Thread 0x7f87621ff6c0 (LWP 56299)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347da28 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87e3cc8485 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f87e3cc5150 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f87e3cbb6d0 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 15 (Thread 0x7f877e7fe6c0 (LWP 50143)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e34cafc2 in clock_nanosleep@GLIBC_2.2.5 () from /lib64/libc.so.6
#3  0x00007f87e34d6fe7 in nanosleep () from /lib64/libc.so.6
#4  0x00007f878a97fdbb in KSysGuard::ProcessesLocal::Private::smapsThreadFunction(std::stop_token, KSysGuard::ProcessesLocal*) () from /lib64/libprocesscore.so.10
#5  0x00007f878a9826e7 in std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(std::stop_token, KSysGuard::ProcessesLocal*), std::stop_token, KSysGuard::ProcessesLocal*> > >::_M_run() () from /lib64/libprocesscore.so.10
#6  0x00007f87e364e044 in execute_native_thread_routine () from /lib64/libstdc++.so.6
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 14 (Thread 0x7f8789a366c0 (LWP 55845)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347da28 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87e3cc8485 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f87e3cc5150 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f87e3cbb6d0 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 13 (Thread 0x7f879d54d6c0 (LWP 21819)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347d81e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87b593479d in cnd_wait () from /lib64/libgallium-25.0.2.so
#5  0x00007f87b58ef26c in util_queue_thread_func () from /lib64/libgallium-25.0.2.so
#6  0x00007f87b59346cc in impl_thrd_routine () from /lib64/libgallium-25.0.2.so
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 12 (Thread 0x7f878a2376c0 (LWP 55847)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347da28 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87e3cc8485 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f87e3cc5150 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f87e3cbb6d0 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 11 (Thread 0x7f87c0dfd6c0 (LWP 21810)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347ab04 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007f87e34f4ce6 in ppoll () from /lib64/libc.so.6
#4  0x00007f87e30ce210 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#5  0x00007f87e30ce2d3 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#6  0x00007f87e3df6cc3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#7  0x00007f87e3b026d3 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#8  0x00007f87e3c1eb2f in QThread::exec() () from /lib64/libQt6Core.so.6
#9  0x00007f87e3cbb6d0 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#10 0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#11 0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 10 (Thread 0x7f8788c7e6c0 (LWP 55844)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347da28 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87e3cc8485 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f87e3cc5150 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f87e3cbb6d0 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 9 (Thread 0x7f87c99ff6c0 (LWP 21802)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347d81e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87e3cc84fb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f87d1109b1e in QtWaylandClient::EventThread::run() () from /lib64/libQt6WaylandClient.so.6
#6  0x00007f87e3cbb6d0 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 8 (Thread 0x7f87c1dff6c0 (LWP 21804)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347d81e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87b593479d in cnd_wait () from /lib64/libgallium-25.0.2.so
#5  0x00007f87b58ef26c in util_queue_thread_func () from /lib64/libgallium-25.0.2.so
#6  0x00007f87b59346cc in impl_thrd_routine () from /lib64/libgallium-25.0.2.so
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 7 (Thread 0x7f87acbff6c0 (LWP 21815)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347d81e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87e3cc84fb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f87cbb9dd90 in QSGRenderThread::processEventsAndWaitForMore() () from /lib64/libQt6Quick.so.6
#6  0x00007f87cbb9e012 in QSGRenderThread::run() () from /lib64/libQt6Quick.so.6
#7  0x00007f87e3cbb6d0 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#8  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#9  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 6 (Thread 0x7f877ffff6c0 (LWP 55846)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347da28 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87e3cc8485 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f87e3cc5150 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f87e3cbb6d0 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 5 (Thread 0x7f8763fff6c0 (LWP 56297)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347da28 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87e3cc8485 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f87e3cc5150 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f87e3cbb6d0 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 4 (Thread 0x7f87619fe6c0 (LWP 56296)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347da28 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87e3cc8485 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f87e3cc5150 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f87e3cbb6d0 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 3 (Thread 0x7f877d3fd6c0 (LWP 56298)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347b12c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f87e347da28 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f87e3cc8485 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f87e3cc5150 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f87e3cbb6d0 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#8  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 2 (Thread 0x7f87c91fe6c0 (LWP 21803)):
#0  0x00007f87e3486872 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f87e347aaba in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f87e347ab04 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007f87e34f471e in poll () from /lib64/libc.so.6
#4  0x00007f87d1109b85 in QtWaylandClient::EventThread::run() () from /lib64/libQt6WaylandClient.so.6
#5  0x00007f87e3cbb6d0 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#6  0x00007f87e347e324 in start_thread () from /lib64/libc.so.6
#7  0x00007f87e3501cfc in __clone3 () from /lib64/libc.so.6

Thread 1 (Thread 0x7f87df1a2d40 (LWP 21796)):
[KCrash Handler]
#4  0x00007f878a9643de in KSysGuard::CGroup::setPids(QList<int> const&) () from /lib64/libprocesscore.so.10
#5  0x00007f878a96446d in std::_Function_handler<void (QList<int>), KSysGuard::CGroupDataModel::update(KSysGuard::CGroup*)::{lambda(QList<int>)#1}>::_M_invoke(std::_Any_data const&, QList<int>&&) () from /lib64/libprocesscore.so.10
#6  0x00007f878a960085 in QtPrivate::QCallableObject<std::_Bind<std::function<void (QList<int>)> (QList<int>)>, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) () from /lib64/libprocesscore.so.10
#7  0x00007f87e3b4fa2c in QObject::event(QEvent*) () from /lib64/libQt6Core.so.6
#8  0x00007f87e563d4ca in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#9  0x00007f87e3af549c in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6
#10 0x00007f87e3af8fd0 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt6Core.so.6
#11 0x00007f87e3df747f in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt6Core.so.6
#12 0x00007f87e30c5040 in g_main_context_dispatch_unlocked.lto_priv () from /lib64/libglib-2.0.so.0
#13 0x00007f87e30ce128 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#14 0x00007f87e30ce2d3 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#15 0x00007f87e3df6cc3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#16 0x00007f87e3b026d3 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#17 0x00007f87e3afe1d5 in QCoreApplication::exec() () from /lib64/libQt6Core.so.6
#18 0x0000562041a664fa in main ()

Reported using DrKonqi
This report was filed against 'kde' because the product 'plasma-systemmonitor' could not be located in Bugzilla. Add it to drkonqi's mappings file!