Bug 393308

Summary:	Plasma crash after removing an icon from the system tray
Product:	[Plasma] plasmashell	Reporter:	Tavian Barnes <tavianator>
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED WORKSFORME
Severity:	crash	CC:	justin.zobel, plasma-bugs-null
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	5.12.4
Target Milestone:	1.0
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Tavian Barnes 2018-04-19 20:03:25 UTC

Application: plasmashell (5.12.4)

Qt Version: 5.10.1
Frameworks Version: 5.45.0
Operating System: Linux 4.16.2-2-ARCH x86_64
Distribution: "Arch Linux"

-- Information about the crash:
- What I was doing when the application crashed:

I had just removed an icon from the system tray (System Tray Settings -> Extra Items).

- Unusual behavior I noticed:

I had also recently disconnected my external monitor.  The panel on that monitor did not move to the built-in display, so I created a new panel.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f67d245f800 (LWP 2523))]

Thread 7 (Thread 0x7f670819e700 (LWP 3020)):
#0  0x00007f67c62bc2f4 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f67c6275440 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f67c627563e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f67cc2f9264 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f67cc29b32b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f67cc0aa72e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f670ab4d1ba in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#7  0x00007f67cc0afacd in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f67cb26908c in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f67cb9b7e7f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f671c295700 (LWP 2643)):
#0  0x00007f67c6274997 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#1  0x00007f67c627544e in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f67c627563e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f67cc2f9264 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f67cc29b32b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f67cc0aa72e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f67cfe2350b in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007f67cc0afacd in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f67cb26908c in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f67cb9b7e7f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f67a7be3700 (LWP 2596)):
#0  0x00007f67cb26f3bd in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f67d1b46f77 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f67d1b46fb9 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f67cb26908c in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f67cb9b7e7f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f67b1b2d700 (LWP 2560)):
#0  0x00007ffd2f347ac8 in clock_gettime ()
#1  0x00007f67cb9c5746 in clock_gettime () at /usr/lib/libc.so.6
#2  0x00007f67cc2f8b52 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f67cc2f72ea in QTimerInfoList::updateCurrentTime() () at /usr/lib/libQt5Core.so.5
#4  0x00007f67cc2f78c6 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/libQt5Core.so.5
#5  0x00007f67cc2f8faf in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f67c6274a49 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#7  0x00007f67c627544e in  () at /usr/lib/libglib-2.0.so.0
#8  0x00007f67c627563e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#9  0x00007f67cc2f9264 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#10 0x00007f67cc29b32b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#11 0x00007f67cc0aa72e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#12 0x00007f67cf27d379 in  () at /usr/lib/libQt5Qml.so.5
#13 0x00007f67cc0afacd in  () at /usr/lib/libQt5Core.so.5
#14 0x00007f67cb26908c in start_thread () at /usr/lib/libpthread.so.0
#15 0x00007f67cb9b7e7f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f67b39d4700 (LWP 2559)):
#0  0x00007f67c6272362 in  () at /usr/lib/libglib-2.0.so.0
#1  0x00007f67c6274e2a in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f67c62754c6 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f67c627563e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f67cc2f9264 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f67cc29b32b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f67cc0aa72e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f67cf27d379 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f67cc0afacd in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f67cb26908c in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f67cb9b7e7f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f67b95b1700 (LWP 2551)):
#0  0x00007f67cb9ad97b in poll () at /usr/lib/libc.so.6
#1  0x00007f67c6275523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f67c627563e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f67cc2f9264 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f67cc29b32b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f67cc0aa72e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f67cc71c416 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f67cc0afacd in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f67cb26908c in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f67cb9b7e7f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f67d245f800 (LWP 2523)):
[KCrash Handler]
#6  0x00007f67d05d5b10 in  () at /usr/lib/libKF5Plasma.so.5
#7  0x00007f67d05d4c24 in  () at /usr/lib/libKF5Plasma.so.5
#8  0x00007f67d05d4e41 in Plasma::DataEngine::setData(QString const&, QString const&, QVariant const&) () at /usr/lib/libKF5Plasma.so.5
#9  0x00007f670bfab36f in  () at /usr/lib/qt/plugins/plasma/dataengine/plasma_engine_netctl.so
#10 0x00007f67d05d324e in  () at /usr/lib/libKF5Plasma.so.5
#11 0x00007f67cc2cd616 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#12 0x00007f67d05cdcc3 in Plasma::DataContainer::updateRequested(Plasma::DataContainer*) () at /usr/lib/libKF5Plasma.so.5
#13 0x00007f67d05e5f89 in  () at /usr/lib/libKF5Plasma.so.5
#14 0x00007f67cc2ce01b in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#15 0x00007f67cd2a4fec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#16 0x00007f67cd2ac9c6 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#17 0x00007f67cc29ccf0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#18 0x00007f67cc2f8688 in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#19 0x00007f67cc2f8eba in  () at /usr/lib/libQt5Core.so.5
#20 0x00007f67c6275368 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#21 0x00007f67c62755b1 in  () at /usr/lib/libglib-2.0.so.0
#22 0x00007f67c627563e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#23 0x00007f67cc2f9241 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#24 0x00007f67be182482 in  () at /usr/lib/libQt5XcbQpa.so.5
#25 0x00007f67cc29b32b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#26 0x00007f67cc2a4728 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#27 0x000056493a23a863 in  ()
#28 0x00007f67cb8e2f4a in __libc_start_main () at /usr/lib/libc.so.6
#29 0x000056493a23ac1a in _start ()

Reported using DrKonqi

Comment 1 Justin Zobel 2020-12-04 04:55:54 UTC

Thank you for the report, Tavian.

As it has been a while since this was reported, can you please test and confirm if this issue is still occurring or if this bug report can be marked as resolved.

I have set the bug status to "needsinfo" pending your response, please change back to "reported" or "resolved/worksforme" when you respond, thank you.

Comment 2 Tavian Barnes 2020-12-04 14:11:16 UTC

Can't reproduce this any more.