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#1 2017-05-15 00:45:05

ralvez
Member
From: Canada
Registered: 2005-12-06
Posts: 1,730
Website

plasmashell crashing

I have an up-to-date system running KDE.
About 3 updates back I noticed that plasma shell was randomly crashing. Running "plasmashell" would restore things until for some unknown reason a few hours later, or a day or two, or some times a week later it will crash again.

Today at the time it crashed I was able to read in the journalctl the following:

May 14 16:51:13 dragonfly kwin_x11[752]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 52791, resource id: 73400323, major code: 15 (QueryTree), minor code: 0
May 14 16:51:22 dragonfly plasmashell[13238]: No file found for ".xml" , even though update-mime-info said it would exist.
                                              Either it was just removed, or the directory doesn't have executable permission... ("/home/ralvez/.local/share/mime", "/usr/share/mime")
May 14 16:51:22 dragonfly plasmashell[13238]: No file found for ".xml" , even though update-mime-info said it would exist.
                                              Either it was just removed, or the directory doesn't have executable permission... ("/home/ralvez/.local/share/mime", "/usr/share/mime")
May 14 16:51:23 dragonfly plasmashell[13238]: Trying to use rootObject before initialization is completed, whilst using setInitializationDelayed. Forcing completion
May 14 16:51:23 dragonfly plasmashell[13238]: qml: Reading places from configuration: [{"placeAlias":"Bolton","placeIdentifier":"Canada/Ontario/Bolton","providerId":"yrno"}]
May 14 16:51:23 dragonfly plasmashell[13238]: qml: cacheBackend failed to initialize
May 14 16:51:23 dragonfly plasmashell[13238]: qml: Reading places from configuration: [{"placeAlias":"Bolton","placeIdentifier":"Canada/Ontario/Bolton","providerId":"yrno"}]
May 14 16:51:24 dragonfly plasmashell[13238]: Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
May 14 16:51:24 dragonfly plasmashell[13238]: file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:350: TypeError: Cannot read property 'padding' of null
May 14 16:51:24 dragonfly plasmashell[13238]: file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:351: TypeError: Cannot read property 'padding' of null
May 14 16:51:24 dragonfly plasmashell[13238]: file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:352: TypeError: Cannot read property 'padding' of null
May 14 16:51:24 dragonfly plasmashell[13238]: file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:353: TypeError: Cannot read property 'padding' of null
May 14 16:51:24 dragonfly plasmashell[13238]: file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:350: TypeError: Cannot read property 'padding' of null
May 14 16:51:24 dragonfly plasmashell[13238]: file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:351: TypeError: Cannot read property 'padding' of null
May 14 16:51:24 dragonfly plasmashell[13238]: file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:352: TypeError: Cannot read property 'padding' of null
May 14 16:51:24 dragonfly plasmashell[13238]: file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:353: TypeError: Cannot read property 'padding' of null
May 14 16:51:24 dragonfly plasmashell[13238]: Trying to use rootObject before initialization is completed, whilst using setInitializationDelayed. Forcing completion
May 14 16:51:24 dragonfly plasmashell[13238]: file:///usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/contents/ui/main.qml:78:27: Unable to assign [undefined] to QStringList
May 14 16:51:24 dragonfly plasmashell[13238]: file:///usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/contents/ui/main.qml:37: TypeError: Cannot read property 'DateTime' of undefined
May 14 16:51:24 dragonfly plasmashell[13238]: Loading Calendar plugin HolidaysEventsPlugin(0x1b61660)
May 14 16:51:24 dragonfly plasmashell[13238]: Both point size and pixel size set. Using pixel size.
May 14 16:51:24 dragonfly plasmashell[13238]: Both point size and pixel size set. Using pixel size.
May 14 16:51:24 dragonfly plasmashell[13238]: Both point size and pixel size set. Using pixel size.
May 14 16:51:25 dragonfly plasmashell[13238]: No metadata file in the package, expected it at: "/home/ralvez/.wallpapers/nature/buildings/"
May 14 16:51:25 dragonfly plasmashell[13238]: No metadata file in the package, expected it at: "/home/ralvez/.wallpapers/nature/buildings/"
May 14 16:51:25 dragonfly plasmashell[13238]: No metadata file in the package, expected it at: "/home/ralvez/.wallpapers/nature/buildings/"
May 14 16:51:25 dragonfly kdeinit5[700]: Registering "org.kde.StatusNotifierHost-13238" as system tray
May 14 16:51:26 dragonfly plasmashell[13238]: inotify_add_watch("/usr/share/solid/actions") failed: "No space left on device"
May 14 16:51:26 dragonfly kwalletd5[24730]: org.kde.knotifications: warning: failed to connect to ActionInvoked dbus signal
May 14 16:51:26 dragonfly plasmashell[13238]: Notifications service registered
May 14 16:51:26 dragonfly kwalletd5[24730]: org.kde.knotifications: warning: failed to connect to NotificationClosed dbus signal
May 14 16:51:26 dragonfly yakuake[777]: org.kde.knotifications: warning: failed to connect to ActionInvoked dbus signal
May 14 16:51:26 dragonfly yakuake[777]: org.kde.knotifications: warning: failed to connect to NotificationClosed dbus signal
May 14 16:51:26 dragonfly ksmserver[741]: org.kde.knotifications: warning: failed to connect to ActionInvoked dbus signal
May 14 16:51:26 dragonfly ksmserver[741]: org.kde.knotifications: warning: failed to connect to NotificationClosed dbus signal
May 14 16:51:27 dragonfly plasmashell[13238]: libkcups: Create-Printer-Subscriptions last error: 0 successful-ok
May 14 16:51:27 dragonfly plasmashell[13238]: libkcups: Get-Jobs last error: 0 successful-ok
May 14 16:51:27 dragonfly plasmashell[13238]: libkcups: Get-Jobs last error: 0 successful-ok
May 14 16:51:27 dragonfly plasmashell[13238]: file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:353: TypeError: Cannot read property 'padding' of null
May 14 16:51:27 dragonfly plasmashell[13238]: file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:352: TypeError: Cannot read property 'padding' of null
May 14 16:51:27 dragonfly plasmashell[13238]: file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:351: TypeError: Cannot read property 'padding' of null
May 14 16:51:27 dragonfly plasmashell[13238]: file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:350: TypeError: Cannot read property 'padding' of null
May 14 16:51:27 dragonfly plasmashell[13238]: Plasma Shell startup completed
May 14 16:51:27 dragonfly plasmashell[13238]: libkcups: 0
May 14 16:51:27 dragonfly plasmashell[13238]: libkcups: 0
May 14 16:51:27 dragonfly krunner[754]: org.kde.knotifications: warning: failed to connect to ActionInvoked dbus signal
May 14 16:51:27 dragonfly krunner[754]: org.kde.knotifications: warning: failed to connect to NotificationClosed dbus signal
May 14 16:51:27 dragonfly plasmashell[13238]: Both point size and pixel size set. Using pixel size.
May 14 16:51:28 dragonfly plasmashell[13238]: org.kde.plasma.pulseaudio: No object for name "alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1.monitor"

Plasmashell seems to be trying to read something at the time it fails:

May 14 16:51:22 dragonfly plasmashell[13238]: No file found for ".xml" , even though update-mime-info said it would exist.
                                              Either it was just removed, or the directory doesn't have executable permission... ("/home/ralvez/.local/share/mime", "/usr/share/mime")

Directory permissions seem to be correct though ... however I do not have an .xml file there (??) should I?

Any one knows how to solve this problem or have any ideas to troubleshoot it?

Thanks.

R.

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#2 2017-05-15 06:45:42

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 78,171

Re: plasmashell crashing

That's hardly the cause of a crash (segfault) but basically says "i would not know what to do when you click an xml file"

Ensure to have drkonqi installed to get a crash dialog and a backtrace in the second tab. That should provide a better hint on why plasmashell crashes.
The last thing it does s apparently to access some plasma specific pulseaudio daemon (yeah for even more sound complextiy ... )

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#3 2017-05-18 00:10:30

ralvez
Member
From: Canada
Registered: 2005-12-06
Posts: 1,730
Website

Re: plasmashell crashing

seth,

Thank you for your reply.

I'm not familiar with drkonqi but I installed it a couple of days back after  you mentioned it.

Today plasmashell crashed again, but drkonqi did not get triggered, which I assumed it would be automagic if a program in the system was to crash.

That's OK, I figured smile I'll go "manual".

The help has two options that seemed relevant given the situation : 

--appname <name>           <Name> of the program
--pid <pid>                The <PID> of the program

I tried :/usr/lib/drkonqi plasmashell as well as the PID of plasmashell but no joy.
Perhaps I'm misreading the meaning of these options?

Thanks.

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#4 2017-05-18 06:16:02

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 78,171

Re: plasmashell crashing

ralvez wrote:

it would be automagic if a program in the system was to crash.

Yes.

ralvez wrote:

That's OK, I figured smile I'll go "manual".

That won't work - it requires a stopped (and probably crashed) process.
You can open konsole and run

echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope # this is required to allow the next call
gdb --pid `pidof plasmashell` 2>&1  | tee ~/plasmashell.gdb

after gdb started, the plasmashell process is stopped (it won't react to anything) until you enter 

run

in the gdb shell.
Once plasmashell crashes again, gdb will stop it and show you a promt again. Then enter 

thread apply all bt

what will print a backtrace of all threads. Ultimately enter 

detach
quit

to end gdb. Plasmashell should then automatically restart.

Your gdb session will be logged in ~/plasmashell.gdb

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#5 2017-05-18 06:32:41

arojas
Developer
From: Spain
Registered: 2011-10-09
Posts: 2,309

Re: plasmashell crashing

Or you can just run 

coredumpctl $id gdb

where $id is the ID of the coredump saved in the last segfault (you can get it from the output of coredumpctl)

Last edited by arojas (2017-05-18 06:33:10)

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#6 2017-05-18 06:36:15

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 78,171

Re: plasmashell crashing

Does plasmashell? Even if drkonqi is not installed? (also notice that drkonqi isn't even invoked here, at this point i'm not even sure there's an abort or segfault)

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#7 2017-05-19 13:25:58

ralvez
Member
From: Canada
Registered: 2005-12-06
Posts: 1,730
Website

Re: plasmashell crashing

OK. Last night plasmashell crashed and I got this:

Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd22b610800 (LWP 22833))]

Thread 15 (Thread 0x7fd1337fe700 (LWP 23166)):
#0  0x00007fd224280756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd2253c658b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007fd22911e665 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007fd22911ef72 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007fd2253c56d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fd22427a2e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fd224cd854f in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7fd133fff700 (LWP 23165)):
#0  0x00007fd21faeb1c0 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fd21faa4870 in g_main_context_acquire () at /usr/lib/libglib-2.0.so.0
#2  0x00007fd21faa5865 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007fd21faa5acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007fd2255f509b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fd22559e8ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fd2253c0a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007fd2284f9025 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007fd2253c56d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007fd22427a2e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fd224cd854f in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7fd144d1e700 (LWP 22865)):
#0  0x00007fd224280756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd2253c658b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007fd22911e665 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007fd22911ef72 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007fd2253c56d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fd22427a2e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fd224cd854f in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7fd14724f700 (LWP 22856)):
#0  0x00007fd224280756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd2253c658b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007fd22911e665 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007fd22911ef72 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007fd2253c56d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fd22427a2e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fd224cd854f in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7fd14c957700 (LWP 22852)):
#0  0x00007fd21faeb1c9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fd21faa5536 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#2  0x00007fd21faa5a20 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007fd21faa5acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007fd2255f509b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fd22559e8ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fd2253c0a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007fd14f2fa0a7 in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#8  0x00007fd2253c56d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007fd22427a2e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fd224cd854f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7fd156275700 (LWP 22849)):
#0  0x00007fd224cce67d in poll () at /usr/lib/libc.so.6
#1  0x00007fd21faa59b6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fd21faa5acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fd2255f509b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fd22559e8ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fd2253c0a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fd2290acfd6 in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007fd2253c56d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fd22427a2e7 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fd224cd854f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7fd172385700 (LWP 22848)):
#0  0x00007fd21faeb1c9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fd21faa51fe in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007fd21faa5954 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007fd21faa5acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007fd2255f509b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fd22559e8ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fd2253c0a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007fd2253c56d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fd22427a2e7 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fd224cd854f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7fd16afff700 (LWP 22847)):
[KCrash Handler]
#6  0x00007fd224c1fa10 in raise () at /usr/lib/libc.so.6
#7  0x00007fd224c2113a in abort () at /usr/lib/libc.so.6
#8  0x00007fd224c5e2b0 in __libc_message () at /usr/lib/libc.so.6
#9  0x00007fd224c6490e in malloc_printerr () at /usr/lib/libc.so.6
#10 0x00007fd224c66d61 in _int_malloc () at /usr/lib/libc.so.6
#11 0x00007fd224c68674 in malloc () at /usr/lib/libc.so.6
#12 0x00007fd2253c690c in QArrayData::allocate(unsigned long, unsigned long, unsigned long, QFlags<QArrayData::AllocationOption>) () at /usr/lib/libQt5Core.so.5
#13 0x00007fd225443993 in QString::QString(int, Qt::Initialization) () at /usr/lib/libQt5Core.so.5
#14 0x00007fd225443a62 in  () at /usr/lib/libQt5Core.so.5
#15 0x00007fd22544d2d7 in QString::arg(QString const&, int, QChar) const () at /usr/lib/libQt5Core.so.5
#16 0x00007fd169cb972c in  () at /usr/lib/libQt5XmlPatterns.so.5
#17 0x00007fd169cbeed5 in  () at /usr/lib/libQt5XmlPatterns.so.5
#18 0x00007fd169cc0428 in  () at /usr/lib/libQt5XmlPatterns.so.5
#19 0x00007fd169c6ccf6 in  () at /usr/lib/libQt5XmlPatterns.so.5
#20 0x00007fd169c6aaee in QXmlQuery::setQuery(QIODevice*, QUrl const&) () at /usr/lib/libQt5XmlPatterns.so.5
#21 0x00007fd169c6b7b8 in QXmlQuery::setQuery(QString const&, QUrl const&) () at /usr/lib/libQt5XmlPatterns.so.5
#22 0x00007fd16a1e221f in  () at /usr/lib/qt/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#23 0x00007fd16a1e3627 in  () at /usr/lib/qt/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#24 0x00007fd16a1e4160 in  () at /usr/lib/qt/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#25 0x00007fd16a1e431d in  () at /usr/lib/qt/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#26 0x00007fd22650e34c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#27 0x00007fd226515b61 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#28 0x00007fd2255a0470 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#29 0x00007fd2255a2bfd in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#30 0x00007fd2255f4c73 in  () at /usr/lib/libQt5Core.so.5
#31 0x00007fd21faa57b7 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#32 0x00007fd21faa5a20 in  () at /usr/lib/libglib-2.0.so.0
#33 0x00007fd21faa5acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#34 0x00007fd2255f507f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#35 0x00007fd22559e8ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#36 0x00007fd2253c0a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#37 0x00007fd16a1e4385 in  () at /usr/lib/qt/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#38 0x00007fd2253c56d8 in  () at /usr/lib/libQt5Core.so.5
#39 0x00007fd22427a2e7 in start_thread () at /usr/lib/libpthread.so.0
#40 0x00007fd224cd854f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7fd171b84700 (LWP 22840)):
#0  0x00007fd224280756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd2253c658b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007fd22911e665 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007fd22911ef72 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007fd2253c56d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fd22427a2e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fd224cd854f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7fd205c0e700 (LWP 22838)):
#0  0x00007fd224280756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd22ada0234 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007fd22ada0279 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007fd22427a2e7 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd224cd854f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fd2079a7700 (LWP 22837)):
#0  0x00007fd224cce67d in poll () at /usr/lib/libc.so.6
#1  0x00007fd21faa59b6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fd21faa5acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fd2255f509b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fd22559e8ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fd2253c0a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fd2284f9025 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007fd2253c56d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fd22427a2e7 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fd224cd854f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fd20dcbb700 (LWP 22836)):
#0  0x00007fd21faeb1d8 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fd21faa53c4 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007fd21faa5954 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007fd21faa5acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007fd2255f509b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fd22559e8ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fd2253c0a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007fd2284f9025 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007fd2253c56d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007fd22427a2e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fd224cd854f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fd20f703700 (LWP 22835)):
#0  0x00007fd224cce67d in poll () at /usr/lib/libc.so.6
#1  0x00007fd21faa59b6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fd21faa5acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fd2255f509b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fd22559e8ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fd2253c0a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fd226145125 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007fd2253c56d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fd22427a2e7 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fd224cd854f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fd2157e5700 (LWP 22834)):
#0  0x00007fd224cce67d in poll () at /usr/lib/libc.so.6
#1  0x00007fd229cc68e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007fd229cc8679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007fd217d57239 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fd2253c56d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fd22427a2e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fd224cd854f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fd22b610800 (LWP 22833)):
#0  0x00007fd224280756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd229cc6b57 in  () at /usr/lib/libxcb.so.1
#2  0x00007fd229cc839f in  () at /usr/lib/libxcb.so.1
#3  0x00007fd229cc8511 in xcb_wait_for_reply64 () at /usr/lib/libxcb.so.1
#4  0x00007fd229f254d8 in _XReply () at /usr/lib/libX11.so.6
#5  0x00007fd21c94427a in XSyncQueryCounter () at /usr/lib/libXext.so.6
#6  0x00007fd14fbe3364 in  () at /usr/lib/qt/plugins/kf5/org.kde.kidletime.platforms/KF5IdleTimeXcbPlugin0.so
#7  0x00007fd15cdb1aa9 in  () at /usr/lib/qt/plugins/plasma/dataengine/plasma_engine_powermanagement.so
#8  0x00007fd22983c416 in  () at /usr/lib/libKF5Plasma.so.5
#9  0x00007fd22983fc30 in  () at /usr/lib/libKF5Plasma.so.5
#10 0x00007fd2255cbd79 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#11 0x00007fd2298351c2 in Plasma::DataContainer::updateRequested(Plasma::DataContainer*) () at /usr/lib/libKF5Plasma.so.5
#12 0x00007fd22984cdc8 in  () at /usr/lib/libKF5Plasma.so.5
#13 0x00007fd2255ccb93 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#14 0x00007fd22650e34c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#15 0x00007fd226515b61 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#16 0x00007fd2255a0470 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#17 0x00007fd2255f3cee in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#18 0x00007fd2255f4541 in  () at /usr/lib/libQt5Core.so.5
#19 0x00007fd21faa57b7 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#20 0x00007fd21faa5a20 in  () at /usr/lib/libglib-2.0.so.0
#21 0x00007fd21faa5acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#22 0x00007fd2255f507f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#23 0x00007fd22559e8ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#24 0x00007fd2255a6e14 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#25 0x000000000041ca42 in  ()
#26 0x00007fd224c0c511 in __libc_start_main () at /usr/lib/libc.so.6
#27 0x000000000041cdca in _start ()

libc.so, QT and seemingly related QT libraries are mentioned but I do not see anything to give a clue about the problem ... then again I have not touched C in 20 + years smile

R.

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#8 2017-05-19 13:29:59

ralvez
Member
From: Canada
Registered: 2005-12-06
Posts: 1,730
Website

Re: plasmashell crashing

In connection to using the debugging CLI tool when I run it I get this:

# echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope # this is required to allow the next call
0
[root@dragonfly ralvez]# gdb --pid `pidof plasmashell` 2>&1  | tee ~/plasmashell.gdb
GNU gdb (GDB) 7.12.1
Copyright (C) 2017 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-pc-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
22833: No such file or directory.
Attaching to process 32165
[New LWP 32167]
[New LWP 32169]
[New LWP 32173]
[New LWP 32175]
[New LWP 32176]
[New LWP 32181]
[New LWP 32184]
[New LWP 32185]
[New LWP 32186]
[New LWP 32188]
[New LWP 32193]
[New LWP 3204]
[New LWP 4968]
[New LWP 5961]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
0x00007fbbc137267d in poll () from /usr/lib/libc.so.6
(gdb) run
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /usr/bin/plasmashell 
[Thread debugging using libthread_db enabled]                                                                                                                          
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffe20b0700 (LWP 6202)]
QStandardPaths: wrong ownership on runtime directory /run/user/1000, 1000 instead of 0
[New Thread 0x7fffdbfff700 (LWP 6203)]
"Session bus not found\nTo circumvent this problem try the following command (with Linux and bash)\nexport $(dbus-launch)"
[Thread 0x7fffdbfff700 (LWP 6203) exited]
[Thread 0x7ffff7ed7800 (LWP 6201) exited]
[Inferior 1 (process 6201) exited with code 01]
(gdb) thread apply all bt
(gdb) detach
The program is not being run.
(gdb) quit

Does it tell you anything?

R.

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#9 2017-05-19 13:37:05

ralvez
Member
From: Canada
Registered: 2005-12-06
Posts: 1,730
Website

Re: plasmashell crashing

@arojas,

Thanks for  your reply.
I took the id from the crash as you mentioned (Executable: plasmashell PID: 22833 Signal: Aborted (6) Time: 2017-05-18 22:53:47)
and then run the code:

coredumpctl 22833 gdb

It responds with:

Unknown action '22833'

Did I miss something in your explanation?

R.

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#10 2017-05-19 13:48:12

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 78,171

Re: plasmashell crashing

You're not supposed to run gdb as root, but it doesn't matter since we got a backtrace from drkonqi.

This is https://bugs.kde.org/show_bug.cgi?id=375860 and reported many times.
Claimed to be plasma5-applets-weather-widget driven.

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

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#11 2017-05-19 14:33:44

ralvez
Member
From: Canada
Registered: 2005-12-06
Posts: 1,730
Website

Re: plasmashell crashing

@seth,

OK. I've removed the weather applet. Hopefully that is the end of the problem in this machine.
The really odd thing is that I have the very same applet in another system I use in the office and I have no problems at all.

It is a better, much newer, system that this ( I built this machine about 12 years ago... yup running well till this day. A bit slow now ) and that may make some difference.
The settings are the same. You would think that if it is a software issue with the same settings both machines should have the same problem... go figure! wink

Thank you for all the help.

R

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#12 2017-05-19 14:34:15

arojas
Developer
From: Spain
Registered: 2011-10-09
Posts: 2,309

Re: plasmashell crashing

ralvez wrote:

Did I miss something in your explanation?

R.

Sorry, that should be 

coredumpctl gdb $id

instead

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#13 2017-05-19 14:35:09

ralvez
Member
From: Canada
Registered: 2005-12-06
Posts: 1,730
Website

Re: plasmashell crashing

@arojas,

Thank you for your help too!!

R.

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#14 2017-08-08 22:40:36

elav
Member
From: /var/www/html/forum
Registered: 2011-12-24
Posts: 37
Website

Re: plasmashell crashing

You are not alone.. https://bugs.kde.org/show_bug.cgi?id=381525

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