Bug 502371

Summary:	KDE Welcome Crash after first installation
Product:	[Applications] Welcome Center	Reporter:	craigkrais
Component:	general	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED UNMAINTAINED
Severity:	crash	CC:	nate, olib141
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Kubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description craigkrais 2025-04-03 19:11:25 UTC

Application: plasma-welcome (5.27.11)

Qt Version: 5.15.13
Frameworks Version: 5.115.0
Operating System: Linux 6.11.0-17-generic x86_64
Windowing System: X11
Distribution: Ubuntu 24.04.2 LTS
DrKonqi: 5.27.11 [KCrashBackend]

-- Information about the crash:
I installed Kubuntu 24.04.2 LTS on an encrypted ext4 partition (It's a Lenovo Legion 5 with Win11 on a different partition). Installation went smooth until at the end it said "install add cd-rom failed" (or something like that) error - I have no cd-rom on the device so I did not bother. Then at first boot, KDE Welcome crashed.

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: Welcome to KDE Plasma (plasma-welcome), signal: Aborted

[KCrash Handler]
#4  __pthread_kill_implementation (no_tid=0, signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:44
#5  __pthread_kill_internal (signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:78
#6  __GI___pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ./nptl/pthread_kill.c:89
#7  0x000072ce6629e27e in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#8  0x000072ce662818ff in __GI_abort () at ./stdlib/abort.c:79
#9  0x000072ce6513df32 in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#10 0x000072ce65166310 in _dbus_warn_check_failed () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#11 0x000072ce661a3009 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#12 0x000072ce661a534f in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#13 0x000072ce661a637a in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#14 0x000072ce669f1343 in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x000072ce669c30e6 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x000072ce669c694b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x000072ce66a20c0f in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x000072ce6520d5b5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x000072ce6526c717 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x000072ce6520ca53 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x000072ce66a20279 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x000072ce669c1a7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x000072ce667c536b in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x000072ce6618e15b in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#25 0x000072ce667c6674 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x000072ce662f5aa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#27 0x000072ce66382c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 8 (Thread 0x72ce591286c0 (LWP 54661) "plasma-:disk$0"):
#1  __futex_abstimed_wait_common (cancel=true, private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x5da05b689068) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5da05b689068, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x000072ce662f47ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5da05b689010, cond=0x5da05b689040) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x5da05b689040, mutex=0x5da05b689010) at ./nptl/pthread_cond_wait.c:627
#5  0x000072ce5927940d in ?? () from /lib/x86_64-linux-gnu/libgallium-24.2.8-1ubuntu1~24.04.1.so
#6  0x000072ce59257d0b in ?? () from /lib/x86_64-linux-gnu/libgallium-24.2.8-1ubuntu1~24.04.1.so
#7  0x000072ce5927933c in ?? () from /lib/x86_64-linux-gnu/libgallium-24.2.8-1ubuntu1~24.04.1.so
#8  0x000072ce662f5aa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x000072ce66382c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 7 (Thread 0x72ce589276c0 (LWP 54662) "plasma-wel:sh0"):
#1  __futex_abstimed_wait_common (cancel=true, private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x5da05b66ba18) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5da05b66ba18, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x000072ce662f47ed in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5da05b66b9c0, cond=0x5da05b66b9f0) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x5da05b66b9f0, mutex=0x5da05b66b9c0) at ./nptl/pthread_cond_wait.c:627
#5  0x000072ce5927940d in ?? () from /lib/x86_64-linux-gnu/libgallium-24.2.8-1ubuntu1~24.04.1.so
#6  0x000072ce59257d0b in ?? () from /lib/x86_64-linux-gnu/libgallium-24.2.8-1ubuntu1~24.04.1.so
#7  0x000072ce5927933c in ?? () from /lib/x86_64-linux-gnu/libgallium-24.2.8-1ubuntu1~24.04.1.so
#8  0x000072ce662f5aa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x000072ce66382c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 6 (Thread 0x72ce47fff6c0 (LWP 54667) "QQmlThread"):
#1  0x000072ce6526c66e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000072ce6520ca53 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x000072ce66a20296 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x000072ce669c1a7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x000072ce667c536b in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x000072ce681e707a in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x000072ce667c6674 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x000072ce662f5aa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x000072ce66382c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 5 (Thread 0x72ce477fe6c0 (LWP 54674) "QQmlThread"):
#1  0x000072ce6526c66e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000072ce6520ca53 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x000072ce66a20296 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x000072ce669c1a7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x000072ce667c536b in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x000072ce681e707a in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x000072ce667c6674 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x000072ce662f5aa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#9  0x000072ce66382c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 4 (Thread 0x72ce456d86c0 (LWP 54678) "pool-spawner"):
#1  0x000072ce6526640d in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000072ce651d752b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x000072ce6523f043 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x000072ce6523bc82 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x000072ce662f5aa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#6  0x000072ce66382c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 3 (Thread 0x72ce3be976c0 (LWP 54679) "gmain"):
#1  0x000072ce6526c66e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000072ce6520ca53 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x000072ce6520caa9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x000072ce6523bc82 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x000072ce662f5aa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#6  0x000072ce66382c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 2 (Thread 0x72ce3b6966c0 (LWP 54680) "gdbus"):
#1  0x000072ce6526c66e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000072ce6520df77 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x000072ce44201422 in ?? () from /lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x000072ce6523bc82 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x000072ce662f5aa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#6  0x000072ce66382c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 1 (Thread 0x72ce61de59c0 (LWP 54635) "plasma-welcome"):
#1  0x000072ce667c87db in QSemaphore::acquire(int) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x000072ce669fdb75 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x000072ce6618dad4 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#4  0x000072ce66199e73 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#5  0x000072ce6619aa2d in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#6  0x000072ce6618fd88 in QDBusConnection::connect(QString const&, QString const&, QString const&, QString const&, QObject*, char const*) () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x000072ce617753ac in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#8  0x000072ce6176630e in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#9  0x000072ce669f1343 in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x000072ce674c1d45 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x000072ce669c3118 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x000072ce669c694b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x000072ce66a20c0f in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x000072ce6520d5b5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x000072ce6526c717 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x000072ce6520ca53 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x000072ce66a20279 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x000072ce669c1a7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x000072ce669ca3e8 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00005da043b230b4 in ?? ()
#21 0x000072ce662831ca in __libc_start_call_main (main=main@entry=0x5da043b221d0, argc=argc@entry=1, argv=argv@entry=0x7ffdd399fe28) at ../sysdeps/nptl/libc_start_call_main.h:58
#22 0x000072ce6628328b in __libc_start_main_impl (main=0x5da043b221d0, argc=1, argv=0x7ffdd399fe28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffdd399fe18) at ../csu/libc-start.c:360
#23 0x00005da043b23215 in ?? ()
[Inferior 1 (process 54635) detached]

Reported using DrKonqi

Comment 1 Nate Graham 2025-04-04 15:05:42 UTC

I'm afraid Plasma 5.27 is unfortunately no longer eligible for support or maintenance from KDE.

Plasma is a fast-moving project, and bugs in one version are often fixed in the next one. Please update to Plasma 6.3 as soon as your distro offers it to you — likely by updating to Kubuntu 25.04. If you need support for Plasma 5.27, please contact your distro, who bears the responsibility of providing support for older non-LTS releases.

If this issue is still reproducible in Plasma 6.3, feel free to re-open this bug report.

Thanks for understanding!