Bug 465962

Summary:	Plasmashell freezes and crashes
Product:	[Plasma] plasmashell	Reporter:	Aleksey Kontsevich <akontsevich>
Component:	System Tray widget	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	kde, materka, nate
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	5.27.0
Target Milestone:	1.0
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Aleksey Kontsevich 2023-02-17 21:36:38 UTC

Application: plasmashell (5.27.0)

Qt Version: 5.15.8
Frameworks Version: 5.103.0
Operating System: Linux 6.1.10-1-default x86_64
Windowing System: X11
Distribution: "openSUSE Tumbleweed"
DrKonqi: 5.27.0 [KCrashBackend]

-- Information about the crash:
https://forums.opensuse.org/t/plasmashell-freezes/164477
Same as here:
https://bugs.kde.org/show_bug.cgi?id=465872

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted

[KCrash Handler]
#4  0x00007f7a4388f47c in __pthread_kill_implementation () from /lib64/libc.so.6
#5  0x00007f7a4383ce16 in raise () from /lib64/libc.so.6
#6  0x00007f7a4382589c in abort () from /lib64/libc.so.6
#7  0x00007f7a43aacbf7 in ?? () from /lib64/libstdc++.so.6
#8  0x00007f7a43abc23c in ?? () from /lib64/libstdc++.so.6
#9  0x00007f7a43abc2a7 in std::terminate() () from /lib64/libstdc++.so.6
#10 0x00007f7a43eba437 in qTerminate() () from /lib64/libQt5Core.so.5
#11 0x00007f7a43ebbe84 in ?? () from /lib64/libQt5Core.so.5
#12 0x00007f7a4388d615 in start_thread () from /lib64/libc.so.6
#13 0x00007f7a43913c60 in clone3 () from /lib64/libc.so.6

Thread 10 (Thread 0x7f79ecd8e6c0 (LWP 29143) "QSGSoftwareRend"):
#1  0x00007f7a4388c960 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f7a43efb74b in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt5Core.so.5
#3  0x00007f7a45e55ff1 in ?? () from /lib64/libQt5Quick.so.5
#4  0x00007f7a45e57281 in ?? () from /lib64/libQt5Quick.so.5
#5  0x00007f7a43ef5e3d in ?? () from /lib64/libQt5Core.so.5
#6  0x00007f7a4388d615 in start_thread () from /lib64/libc.so.6
#7  0x00007f7a43913c60 in clone3 () from /lib64/libc.so.6

Thread 9 (Thread 0x7f79fc8546c0 (LWP 29085) "plasmashell"):
#1  0x00007f7a41fe3b4f in ?? () from /lib64/libusbmuxd-2.0.so.6
#2  0x00007f7a41fe47e3 in ?? () from /lib64/libusbmuxd-2.0.so.6
#3  0x00007f7a4388d615 in start_thread () from /lib64/libc.so.6
#4  0x00007f7a43913c60 in clone3 () from /lib64/libc.so.6

Thread 8 (Thread 0x7f79fd0556c0 (LWP 29084) "KCupsConnection"):
#1  0x00007f7a42c27dbe in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007f7a42c27edc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f7a44133c2e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f7a440dac5b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f7a43ef4c47 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f7a18777f07 in KCupsConnection::run() () from /lib64/libkcupslib.so
#7  0x00007f7a43ef5e3d in ?? () from /lib64/libQt5Core.so.5
#8  0x00007f7a4388d615 in start_thread () from /lib64/libc.so.6
#9  0x00007f7a43913c60 in clone3 () from /lib64/libc.so.6

Thread 7 (Thread 0x7f79fd8566c0 (LWP 29083) "QQuickXmlQueryE"):
#1  0x00007f7a42c7754f in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007f7a42c278a6 in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x00007f7a42c27d68 in ?? () from /lib64/libglib-2.0.so.0
#4  0x00007f7a42c27edc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007f7a44133c2e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007f7a440dac5b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#7  0x00007f7a43ef4c47 in QThread::exec() () from /lib64/libQt5Core.so.5
#8  0x00007f7a20dbd895 in ?? () from /usr/lib64/qt5/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#9  0x00007f7a43ef5e3d in ?? () from /lib64/libQt5Core.so.5
#10 0x00007f7a4388d615 in start_thread () from /lib64/libc.so.6
#11 0x00007f7a43913c60 in clone3 () from /lib64/libc.so.6

Thread 6 (Thread 0x7f7a20d636c0 (LWP 29066) "QSGSoftwareRend"):
#1  0x00007f7a4388c960 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f7a43efb74b in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt5Core.so.5
#3  0x00007f7a45e55ff1 in ?? () from /lib64/libQt5Quick.so.5
#4  0x00007f7a45e57281 in ?? () from /lib64/libQt5Quick.so.5
#5  0x00007f7a43ef5e3d in ?? () from /lib64/libQt5Core.so.5
#6  0x00007f7a4388d615 in start_thread () from /lib64/libc.so.6
#7  0x00007f7a43913c60 in clone3 () from /lib64/libc.so.6

Thread 5 (Thread 0x7f7a227b66c0 (LWP 29061) "QQuickPixmapRea"):
#1  0x00007f7a42c27dbe in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007f7a42c27edc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f7a44133c2e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f7a440dac5b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f7a43ef4c47 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f7a45d86016 in ?? () from /lib64/libQt5Quick.so.5
#7  0x00007f7a43ef5e3d in ?? () from /lib64/libQt5Core.so.5
#8  0x00007f7a4388d615 in start_thread () from /lib64/libc.so.6
#9  0x00007f7a43913c60 in clone3 () from /lib64/libc.so.6

Thread 4 (Thread 0x7f7a349be6c0 (LWP 29057) "Qt bearer threa"):
#1  0x00007f7a42c27dbe in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007f7a42c27edc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f7a44133c2e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f7a440dac5b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f7a43ef4c47 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f7a43ef5e3d in ?? () from /lib64/libQt5Core.so.5
#7  0x00007f7a4388d615 in start_thread () from /lib64/libc.so.6
#8  0x00007f7a43913c60 in clone3 () from /lib64/libc.so.6

Thread 3 (Thread 0x7f7a3c93e6c0 (LWP 29054) "QQmlThread"):
#1  0x00007f7a42c25b10 in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007f7a42c2719b in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#3  0x00007f7a42c27cf3 in ?? () from /lib64/libglib-2.0.so.0
#4  0x00007f7a42c27edc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007f7a44133c2e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007f7a440dac5b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#7  0x00007f7a43ef4c47 in QThread::exec() () from /lib64/libQt5Core.so.5
#8  0x00007f7a4593f175 in ?? () from /lib64/libQt5Qml.so.5
#9  0x00007f7a43ef5e3d in ?? () from /lib64/libQt5Core.so.5
#10 0x00007f7a4388d615 in start_thread () from /lib64/libc.so.6
#11 0x00007f7a43913c60 in clone3 () from /lib64/libc.so.6

Thread 2 (Thread 0x7f7a3f37e6c0 (LWP 29051) "QDBusConnection"):
#1  0x00007f7a42c27dbe in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007f7a42c27edc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f7a44133c16 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f7a440dac5b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f7a43ef4c47 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f7a44d81277 in ?? () from /lib64/libQt5DBus.so.5
#7  0x00007f7a43ef5e3d in ?? () from /lib64/libQt5Core.so.5
#8  0x00007f7a4388d615 in start_thread () from /lib64/libc.so.6
#9  0x00007f7a43913c60 in clone3 () from /lib64/libc.so.6

Thread 1 (Thread 0x7f7a4645be40 (LWP 29048) "plasmashell"):
#1  0x00007f7a43ef7e6b in QSemaphore::acquire(int) () from /lib64/libQt5Core.so.5
#2  0x00007f7a4411356b in ?? () from /lib64/libQt5Core.so.5
#3  0x00007f7a4410c8bf in QObject::destroyed(QObject*) () from /lib64/libQt5Core.so.5
#4  0x00007f7a441118d8 in QObject::~QObject() () from /lib64/libQt5Core.so.5
#5  0x00007f7a37effbd7 in ?? () from /usr/lib64/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so
#6  0x00007f7a37effe39 in ?? () from /usr/lib64/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so
#7  0x00007f7a4410589e in QObjectPrivate::deleteChildren() () from /lib64/libQt5Core.so.5
#8  0x00007f7a44111664 in QObject::~QObject() () from /lib64/libQt5Core.so.5
#9  0x00007f7a37efbbe5 in ?? () from /usr/lib64/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so
#10 0x00007f7a4383f795 in __run_exit_handlers () from /lib64/libc.so.6
#11 0x00007f7a4383f910 in exit () from /lib64/libc.so.6
#12 0x00007f7a4128cca7 in ?? () from /lib64/libQt5XcbQpa.so.5
#13 0x00007f7a412bb143 in ?? () from /lib64/libQt5XcbQpa.so.5
#14 0x00007f7a42c27a90 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#15 0x00007f7a42c27e48 in ?? () from /lib64/libglib-2.0.so.0
#16 0x00007f7a42c27edc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#17 0x00007f7a44133c16 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#18 0x00007f7a440dac5b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#19 0x00007f7a440e2dc6 in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#20 0x000055c494a45c19 in ?? ()
#21 0x00007f7a43826af0 in __libc_start_call_main () from /lib64/libc.so.6
#22 0x00007f7a43826bb9 in __libc_start_main_impl () from /lib64/libc.so.6
#23 0x000055c494a45fe5 in ?? ()
[Inferior 1 (process 29048) detached]

The reporter indicates this bug may be a duplicate of or related to bug 465872.

Reported using DrKonqi

Comment 1 Nate Graham 2023-02-22 02:18:20 UTC

Thank you for the bug report! Unfortunately the backtrace is incomplete and missing debug symbols for the following lines that we need to figure out exactly what's going wrong:

> #5  0x00007f7a37effbd7 in ?? () from /usr/lib64/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so
> #6  0x00007f7a37effe39 in ?? () from /usr/lib64/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so

Could you please install debug symbols for Plasma, reproduce the crash, and attach a new symbolicated backtrace? See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports

Thanks again!

Comment 2 Aleksey Kontsevich 2023-02-22 10:11:47 UTC

(In reply to Nate Graham from comment #1)
> Thank you for the bug report! Unfortunately the backtrace is incomplete and
> missing debug symbols for the following lines that we need to figure out
> exactly what's going wrong:
> 
> > #5  0x00007f7a37effbd7 in ?? () from /usr/lib64/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so
> > #6  0x00007f7a37effe39 in ?? () from /usr/lib64/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so
> 
> Could you please install debug symbols for Plasma, reproduce the crash, and
> attach a new symbolicated backtrace? See
> https://community.kde.org/Guidelines_and_HOWTOs/Debugging/
> How_to_create_useful_crash_reports
> 
> Thanks again!

This one with debug symbols: https://bugs.kde.org/show_bug.cgi?id=466236

Comment 3 Nate Graham 2023-02-22 17:52:59 UTC

All right cool, let's follow-up there.

*** This bug has been marked as a duplicate of bug 466236 ***