Bug 2390829

Summary: [abrt] plasma-workspace: KCrash::defaultCrashHandler(): ksmserver killed by SIGSEGV
Product: [Fedora] Fedora Reporter: Mr. Beedell, Roke Julian Lockhart (RJLB) <8ru2u4gz>
Component: plasma-workspaceAssignee: KDE SIG <kde-sig>
Status: CLOSED UPSTREAM QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 42CC: 8ru2u4gz, jgrulich, kde-sig, marcdeop, than, viniciush.dev
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
URL: https://retrace.fedoraproject.org/faf/reports/bthash/c72bc915e231aeac0a798399846c68336cf5f41
Whiteboard: abrt_hash:75c72c6b2bbf39823dc0a79edcdfedd5717ad431;VARIANT_ID=kde;
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2025-09-23 22:22:57 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
File: proc_pid_status
none
File: maps
none
File: limits
none
File: environ
none
File: open_fds
none
File: mountinfo
none
File: os_info
none
File: cpuinfo
none
File: core_backtrace
none
File: dso_list
none
File: var_log_messages
none
File: backtrace none

Description Mr. Beedell, Roke Julian Lockhart (RJLB) 2025-08-25 17:17:04 UTC 
Description of problem:
Occurred when I invoked `qdbus-qt6 org.kde.Shutdown /Shutdown org.kde.Shutdown.logout` multiple times, consequtively, when Konsole was preventing logout. Similarly to https://bugzilla.redhat.com/show_bug.cgi?id=2390813#c0, except that I was able to report https://bugs.kde.org/show_bug.cgi?id=508726#c0.

Version-Release number of selected component:
plasma-workspace-6.4.4-1.fc42

Additional info:
reporter:       libreport-2.17.15
type:           CCpp
reason:         ksmserver killed by SIGSEGV
journald_cursor: s=a2d6d580caa24cf3a9483be7f85033e4;i=2668e0;b=d44f16ae00da493bb01f3c6868458b05;m=4b46cf88;t=63d33aab1ed10;x=8be70f83e464b4bb
executable:     /usr/bin/ksmserver
cmdline:        /usr/bin/ksmserver
cgroup:         0::/user.slice/user-1000.slice/user/session.slice/plasma-ksmserver.service
rootdir:        /
uid:            1000
kernel:         6.15.10-200.fc42.x86_64
package:        plasma-workspace-6.4.4-1.fc42
runlevel:       N 5
backtrace_rating: 4
crash_function: KCrash::defaultCrashHandler
comment:        Occurred when I ran the logout QDbus command.

Truncated backtrace:
Thread no. 1 (30 frames)
 #3 KCrash::defaultCrashHandler at /usr/src/debug/kf6-kcrash-6.17.0-1.fc42.x86_64/src/kcrash.cpp:605
 #5 std::__atomic_base<QThreadData*>::load at /usr/include/c++/15/bits/atomic_base.h:828
 #6 std::atomic<QThreadData*>::load at /usr/include/c++/15/atomic:587
 #7 QAtomicOps<QThreadData*>::loadAcquire<QThreadData*> at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/thread/qatomic_cxx11.h:214
 #8 QBasicAtomicPointer<QThreadData>::loadAcquire at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/thread/qbasicatomic.h:177
 #9 QCoreApplicationPrivate::lockThreadPostEventList at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qcoreapplication.cpp:1580
 #10 QObject::deleteLater at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qobject.cpp:2457
 #11 operator() at /usr/src/debug/plasma-workspace-6.4.4-1.fc42.x86_64/ksmserver/logout.cpp:383
 #13 QtPrivate::FunctorCallBase::call_internal<void, QtPrivate::FunctorCall<std::integer_sequence<long unsigned int>, QtPrivate::List<>, void, KSMServer::completeShutdownOrCheckpoint()::<lambda()> >::call(KSMServer::completeShutdownOrCheckpoint()::<lambda()>&, void**)::<lambda()> > at /usr/include/qt6/QtCore/qobjectdefs_impl.h:65
 #14 QtPrivate::FunctorCall<std::integer_sequence<long unsigned int>, QtPrivate::List<>, void, KSMServer::completeShutdownOrCheckpoint()::<lambda()> >::call at /usr/include/qt6/QtCore/qobjectdefs_impl.h:115
 #15 QtPrivate::FunctorCallable<KSMServer::completeShutdownOrCheckpoint()::<lambda()> >::call<QtPrivate::List<>, void> at /usr/include/qt6/QtCore/qobjectdefs_impl.h:337
 #16 QtPrivate::QCallableObject<KSMServer::completeShutdownOrCheckpoint()::<lambda()>, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) at /usr/include/qt6/QtCore/qobjectdefs_impl.h:547
 #17 QtPrivate::QSlotObjectBase::call at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qobjectdefs_impl.h:461
 #18 doActivate<false> at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qobject.cpp:4146
 #19 QMetaObject::activate at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qobject.cpp:4206
 #20 QSingleShotTimer::timeout at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/redhat-linux-build/src/corelib/Core_autogen/include/moc_qsingleshottimer_p.cpp:116
 #21 QSingleShotTimer::timerFinished at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qsingleshottimer.cpp:62
 #22 QSingleShotTimer::timerEvent at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qsingleshottimer.cpp:84
 #23 QObject::event at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qobject.cpp:1461
 #24 QCoreApplication::notifyInternal2 at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qcoreapplication.cpp:1106
 #25 QCoreApplication::sendEvent at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qcoreapplication.cpp:1546
 #26 QTimerInfoList::activateTimers at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qtimerinfo_unix.cpp:426
 #27 timerSourceDispatch at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:152
 #29 g_main_context_dispatch_unlocked at ../glib/gmain.c:4249
 #30 g_main_context_iterate_unlocked at ../glib/gmain.c:4314
 #31 g_main_context_iteration at ../glib/gmain.c:4379
 #32 QEventDispatcherGlib::processEvents at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:399
 #33 QEventLoop::exec at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/global/qflags.h:77
 #34 QCoreApplication::exec at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qcoreapplication.cpp:1449
 #35 QGuiApplication::exec at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/gui/kernel/qguiapplication.cpp:1986


Potential duplicate: bug 2321112
Comment 1 Mr. Beedell, Roke Julian Lockhart (RJLB) 2025-08-25 17:17:07 UTC 
Created attachment 2104730 [details]
File: proc_pid_status
Comment 2 Mr. Beedell, Roke Julian Lockhart (RJLB) 2025-08-25 17:17:09 UTC 
Created attachment 2104731 [details]
File: maps
Comment 3 Mr. Beedell, Roke Julian Lockhart (RJLB) 2025-08-25 17:17:10 UTC 
Created attachment 2104732 [details]
File: limits
Comment 4 Mr. Beedell, Roke Julian Lockhart (RJLB) 2025-08-25 17:17:12 UTC 
Created attachment 2104733 [details]
File: environ
Comment 5 Mr. Beedell, Roke Julian Lockhart (RJLB) 2025-08-25 17:17:13 UTC 
Created attachment 2104734 [details]
File: open_fds
Comment 6 Mr. Beedell, Roke Julian Lockhart (RJLB) 2025-08-25 17:17:14 UTC 
Created attachment 2104735 [details]
File: mountinfo
Comment 7 Mr. Beedell, Roke Julian Lockhart (RJLB) 2025-08-25 17:17:16 UTC 
Created attachment 2104736 [details]
File: os_info
Comment 8 Mr. Beedell, Roke Julian Lockhart (RJLB) 2025-08-25 17:17:18 UTC 
Created attachment 2104737 [details]
File: cpuinfo
Comment 9 Mr. Beedell, Roke Julian Lockhart (RJLB) 2025-08-25 17:17:19 UTC 
Created attachment 2104738 [details]
File: core_backtrace
Comment 10 Mr. Beedell, Roke Julian Lockhart (RJLB) 2025-08-25 17:17:21 UTC 
Created attachment 2104739 [details]
File: dso_list
Comment 11 Mr. Beedell, Roke Julian Lockhart (RJLB) 2025-08-25 17:17:22 UTC 
Created attachment 2104740 [details]
File: var_log_messages
Comment 12 Mr. Beedell, Roke Julian Lockhart (RJLB) 2025-08-25 17:17:24 UTC 
Created attachment 2104741 [details]
File: backtrace
Comment 13 Mr. Beedell, Roke Julian Lockhart (RJLB) 2025-09-23 22:22:57 UTC 
Per https://bugs.kde.org/show_bug.cgi?id=508726#c2, this is upstream.