Bug 512638

Summary: Plasma crashes right after login
Product: [Plasma] plasmashell Reporter: Łukasz Konieczny <ftefrjbhfvasf32>
Component: generic-crashAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: crash CC: kdedev
Priority: NOR Keywords: drkonqi
Version First Reported In: 6.5.3   
Target Milestone: 1.0   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report: https://crash-reports.kde.org/organizations/kde/issues/306754/events/0428929f281c45eeb41a5a34ee48bd01/
Attachments: New crash information added by DrKonqi

Description Łukasz Konieczny 2025-11-26 11:01:13 UTC
Application: plasmashell (6.5.3)

ApplicationNotResponding [ANR]: false
Qt Version: 6.10.1
Frameworks Version: 6.20.0
Operating System: Linux 6.17.8-300.fc43.x86_64 x86_64
Windowing System: Wayland
Distribution: "Fedora Linux 43 (KDE Plasma Desktop Edition)"
DrKonqi: 6.5.3 [CoredumpBackend]

-- Information about the crash:
After I loged in to the system, Plasma crashed. The taskbar was maximized (not floating) despite I have enabled it floating when no window is maximized. The output of gdb is attached. I have to mention, that earlier in Fedora (two days ago) I had situation, when Plasma went into crash loop after login, but when I did dnf upgrade in virtual terminal, I could again login and use the system.

The reporter is unsure if this crash is reproducible.

-- 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  0x00007f966ee80493 in __pthread_kill_internal (threadid=<optimized out>, signo=6) at pthread_kill.c:89
#7  0x00007f966ee2618e in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#8  0x00007f966ee0d6d0 in __GI_abort () at abort.c:77
#9  0x00007f966ee0e73b in __libc_message_impl (fmt=fmt@entry=0x7f966efc17ea "%s\n") at ../sysdeps/posix/libc_fatal.c:138
#10 0x00007f966ee8a665 in malloc_printerr (str=str@entry=0x7f966efc4728 "malloc_consolidate(): unaligned fastbin chunk detected") at malloc.c:5892
#11 0x00007f966ee8b1fc in malloc_consolidate (av=av@entry=0x7f966eff6ac0 <main_arena>) at malloc.c:4964
#12 0x00007f966ee8d7a8 in _int_malloc (av=av@entry=0x7f966eff6ac0 <main_arena>, bytes=bytes@entry=2048) at malloc.c:4174
#13 0x00007f966ee8e259 in __libc_malloc2 (bytes=2048) at malloc.c:3458
#14 0x00007f966f64b010 in allocateHelper (dptr=0x7ffffd53a4d0, objectSize=1, alignment=16, capacity=2030, option=<optimized out>) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/tools/qarraydata.cpp:178
#15 QArrayData::allocate1 (dptr=dptr@entry=0x7ffffd53a4d0, capacity=<optimized out>, option=<optimized out>) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/tools/qarraydata.cpp:205
#16 0x00007f966f5d3ba8 in QTypedArrayData<char>::allocate (capacity=<optimized out>, option=<optimized out>) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/tools/qarraydata.h:129
#17 QArrayDataPointer<char>::QArrayDataPointer (this=0x7ffffd53a4d0, alloc=<optimized out>, n=<optimized out>, option=<optimized out>) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/tools/qarraydatapointer.h:58
#18 QByteArray::reallocData (this=0x7ffffd53a690, alloc=<optimized out>, option=<optimized out>) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/text/qbytearray.cpp:1993
#19 0x00007f966f5d3d1b in QByteArray::resize (this=this@entry=0x7ffffd53a690, size=size@entry=1825) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/text/qbytearray.cpp:1917
#20 0x00007f966f4ba5d0 in QIODevice::readAll (this=this@entry=0x7ffffd53a620) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/io/qiodevice.cpp:1273


Reported using DrKonqi
Comment 1 Łukasz Konieczny 2025-11-26 11:01:14 UTC
Created attachment 187188 [details]
New crash information added by DrKonqi

DrKonqi auto-attaching complete backtrace.
Comment 2 Łukasz Konieczny 2025-11-26 12:18:11 UTC
I rebooted the system and loged in once again. The problem didn't occur. Perhaps the crash was triggered by the fact, that previously after login a notification from KOrganizer was displayed immediately.
Comment 3 TraceyC 2025-11-26 19:25:04 UTC
Searchable backtrace

Thread 1 (Thread 0x7f96687fff00 (LWP 2670)):
[KCrash Handler]
#5  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
#6  0x00007f966ee80493 in __pthread_kill_internal (threadid=<optimized out>, signo=6) at pthread_kill.c:89
#7  0x00007f966ee2618e in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#8  0x00007f966ee0d6d0 in __GI_abort () at abort.c:77
#9  0x00007f966ee0e73b in __libc_message_impl (fmt=fmt@entry=0x7f966efc17ea "%s\n") at ../sysdeps/posix/libc_fatal.c:138
#10 0x00007f966ee8a665 in malloc_printerr (str=str@entry=0x7f966efc4728 "malloc_consolidate(): unaligned fastbin chunk detected") at malloc.c:5892
#11 0x00007f966ee8b1fc in malloc_consolidate (av=av@entry=0x7f966eff6ac0 <main_arena>) at malloc.c:4964
#12 0x00007f966ee8d7a8 in _int_malloc (av=av@entry=0x7f966eff6ac0 <main_arena>, bytes=bytes@entry=2048) at malloc.c:4174
#13 0x00007f966ee8e259 in __libc_malloc2 (bytes=2048) at malloc.c:3458
#14 0x00007f966f64b010 in allocateHelper (dptr=0x7ffffd53a4d0, objectSize=1, alignment=16, capacity=2030, option=<optimized out>) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/tools/qarraydata.cpp:178
#15 QArrayData::allocate1 (dptr=dptr@entry=0x7ffffd53a4d0, capacity=<optimized out>, option=<optimized out>) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/tools/qarraydata.cpp:205
#16 0x00007f966f5d3ba8 in QTypedArrayData<char>::allocate (capacity=<optimized out>, option=<optimized out>) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/tools/qarraydata.h:129
#17 QArrayDataPointer<char>::QArrayDataPointer (this=0x7ffffd53a4d0, alloc=<optimized out>, n=<optimized out>, option=<optimized out>) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/tools/qarraydatapointer.h:58
#18 QByteArray::reallocData (this=0x7ffffd53a690, alloc=<optimized out>, option=<optimized out>) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/text/qbytearray.cpp:1993
#19 0x00007f966f5d3d1b in QByteArray::resize (this=this@entry=0x7ffffd53a690, size=size@entry=1825) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/text/qbytearray.cpp:1917
#20 0x00007f966f4ba5d0 in QIODevice::readAll (this=this@entry=0x7ffffd53a620) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/io/qiodevice.cpp:1273
#21 0x00007f96718b9a7f in KConfigIniBackend::parseConfig (this=<optimized out>, currentLocale=..., entryMap=..., options=..., merging=false) at /usr/src/debug/kf6-kconfig-6.20.0-1.fc43.x86_64/src/core/kconfigini.cpp:83
#22 0x00007f967189cc59 in KConfigIniBackend::parseConfig (this=<optimized out>, currentLocale=..., entryMap=..., options=...) at /usr/src/debug/kf6-kconfig-6.20.0-1.fc43.x86_64/src/core/kconfigini.cpp:58
#23 KConfigPrivate::parseConfigFiles (this=0x55a5e946bd20) at /usr/src/debug/kf6-kconfig-6.20.0-1.fc43.x86_64/src/core/kconfig.cpp:826
#24 0x00007f96718bd471 in KSharedConfig::KSharedConfig (this=0x55a5e58994b0, fileName=..., flags=..., resType=QStandardPaths::GenericConfigLocation) at /usr/src/debug/kf6-kconfig-6.20.0-1.fc43.x86_64/src/core/ksharedconfig.cpp:173
#25 KSharedConfig::openConfig (_fileName=..., flags=flags@entry=..., resType=resType@entry=QStandardPaths::GenericConfigLocation) at /usr/src/debug/kf6-kconfig-6.20.0-1.fc43.x86_64/src/core/ksharedconfig.cpp:141
#26 0x00007f966f3eafeb in KIconTheme::current () at /usr/src/debug/kf6-kiconthemes-6.20.0-1.fc43.x86_64/src/kicontheme.cpp:670
#27 0x00007f966f3eb77a in KIconLoaderPrivate::initIconThemes (this=0x55a5e499d430) at /usr/src/debug/kf6-kiconthemes-6.20.0-1.fc43.x86_64/src/kiconloader.cpp:443
#28 0x00007f966f3d435d in KIconLoaderPrivate::initIconThemes (this=0x55a5e499d430) at /usr/src/debug/kf6-kiconthemes-6.20.0-1.fc43.x86_64/src/kiconloader.cpp:436
#29 KIconLoaderPrivate::init (this=0x55a5e499d430, _appname=<optimized out>, extraSearchPaths=<optimized out>) at /usr/src/debug/kf6-kiconthemes-6.20.0-1.fc43.x86_64/src/kiconloader.cpp:420
#30 0x00007f966f3e290b in KIconLoader::newIconLoader (this=0x7f96687ffc78) at /usr/src/debug/kf6-kiconthemes-6.20.0-1.fc43.x86_64/src/kiconloader.cpp:1502
#31 0x00007f966f3d3efb in KIconLoaderPrivate::_k_refreshIcons (this=0x55a5e499d430, group=5) at /usr/src/debug/kf6-kiconthemes-6.20.0-1.fc43.x86_64/src/kiconloader.cpp:376
#32 0x00007f966f56759a in QtPrivate::QSlotObjectBase::call (this=0x55a5e49ab0a0, r=0x7f96687ffc78, a=0x7ffffd53af80) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/kernel/qobjectdefs_impl.h:461
#33 doActivate<false> (sender=0x7f966f3ff4c0 <_ZZN13QGlobalStaticIN14QtGlobalStatic6HolderIN12_GLOBAL__N_118Q_QGS_s_globalDataEEEE8instanceEvE6holder.lto_priv.0>, signal_index=<optimized out>, argv=argv@entry=0x7ffffd53af80) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/kernel/qobject.cpp:4257
#34 0x00007f966f55de69 in QMetaObject::activate (sender=sender@entry=0x7f966f3ff4c0 <_ZZN13QGlobalStaticIN14QtGlobalStatic6HolderIN12_GLOBAL__N_118Q_QGS_s_globalDataEEEE8instanceEvE6holder.lto_priv.0>, m=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffffd53af80) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/kernel/qobject.cpp:4317
#35 0x00007f966f3de177 in QMetaObject::activate<void, int> (sender=0x7f966f3ff4c0 <_ZZN13QGlobalStaticIN14QtGlobalStatic6HolderIN12_GLOBAL__N_118Q_QGS_s_globalDataEEEE8instanceEvE6holder.lto_priv.0>, mo=<optimized out>, local_signal_index=0, ret=0x0) at /usr/include/qt6/QtCore/qobjectdefs.h:319
#36 KIconLoaderGlobalData::iconChanged (this=0x7f966f3ff4c0 <_ZZN13QGlobalStaticIN14QtGlobalStatic6HolderIN12_GLOBAL__N_118Q_QGS_s_globalDataEEEE8instanceEvE6holder.lto_priv.0>, _t1=<optimized out>) at /usr/src/debug/kf6-kiconthemes-6.20.0-1.fc43.x86_64/redhat-linux-build/src/KF6IconThemes_autogen/include/kiconloader.moc:118
#37 KIconLoaderGlobalData::qt_static_metacall (_o=0x7f966f3ff4c0 <_ZZN13QGlobalStaticIN14QtGlobalStatic6HolderIN12_GLOBAL__N_118Q_QGS_s_globalDataEEEE8instanceEvE6holder.lto_priv.0>, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7ffffd53b0f8) at /usr/src/debug/kf6-kiconthemes-6.20.0-1.fc43.x86_64/redhat-linux-build/src/KF6IconThemes_autogen/include/kiconloader.moc:74
#38 KIconLoaderGlobalData::qt_metacall (this=0x7f966f3ff4c0 <_ZZN13QGlobalStaticIN14QtGlobalStatic6HolderIN12_GLOBAL__N_118Q_QGS_s_globalDataEEEE8instanceEvE6holder.lto_priv.0>, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7ffffd53b0f8) at /usr/src/debug/kf6-kiconthemes-6.20.0-1.fc43.x86_64/redhat-linux-build/src/KF6IconThemes_autogen/include/kiconloader.moc:104
#39 0x00007f9670754f5e in QDBusConnectionPrivate::deliverCall (this=0x7f96540016e0, object=0x7f966f3ff4c0 <_ZZN13QGlobalStaticIN14QtGlobalStatic6HolderIN12_GLOBAL__N_118Q_QGS_s_globalDataEEEE8instanceEvE6holder.lto_priv.0>, msg=..., metaTypes=<optimized out>, slotIdx=4) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/dbus/qdbusintegrator.cpp:1008
#40 0x00007f966f558fcc in QObject::event (this=<optimized out>, e=<optimized out>) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/kernel/qobject.cpp:1413
#41 0x00007f9671a3db9f in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x7f966f3ff4c0 <_ZZN13QGlobalStaticIN14QtGlobalStatic6HolderIN12_GLOBAL__N_118Q_QGS_s_globalDataEEEE8instanceEvE6holder.lto_priv.0>, e=0x7f9654029520) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/widgets/kernel/qapplication.cpp:3305
#42 0x00007f966f4fc4e8 in QCoreApplication::notifyInternal2 (receiver=0x7f966f3ff4c0 <_ZZN13QGlobalStaticIN14QtGlobalStatic6HolderIN12_GLOBAL__N_118Q_QGS_s_globalDataEEEE8instanceEvE6holder.lto_priv.0>, event=0x7f9654029520) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1109
#43 0x00007f966f4fc74d in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1549
#44 0x00007f966f4ffb09 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55a5e4983660) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1904
#45 0x00007f966f81efcf in postEventSourceDispatch (s=0x55a5e498a7d0) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:246
#46 0x00007f966dfb62a3 in g_main_dispatch (context=0x7f9654000f60) at ../glib/gmain.c:3565
#47 g_main_context_dispatch_unlocked (context=0x7f9654000f60) at ../glib/gmain.c:4425
#48 0x00007f966dfbf1f8 in g_main_context_iterate_unlocked (context=context@entry=0x7f9654000f60, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4490
#49 0x00007f966dfbf3a3 in g_main_context_iteration (context=0x7f9654000f60, may_block=1) at ../glib/gmain.c:4556
#50 0x00007f966f81e80d in QEventDispatcherGlib::processEvents (this=0x55a5e498a740, flags=...) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:399
#51 0x00007f966f509063 in QEventLoop::exec (this=this@entry=0x7ffffd53b740, flags=..., flags@entry=...) at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/global/qflags.h:77
#52 0x00007f966f504819 in QCoreApplication::exec () at /usr/src/debug/qt6-qtbase-6.10.1-1.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1452
#53 0x000055a5b081998d in main ()
Comment 4 TraceyC 2025-11-26 19:31:07 UTC
Thank you for the bug report. Based on the backtrace this looks like a duplicate of bug 506642. Please follow that report if you would like updates on the progress of this issue.

*** This bug has been marked as a duplicate of bug 506642 ***