Bug 362552

Summary: plasmashell crash when screen is locked, (and possibly when external monitors are turned off)
Product: [Plasma] plasmashell Reporter: bluescreenavenger
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: bhush94, notmart, plasma-bugs
Priority: NOR    
Version: 5.5.5   
Target Milestone: 1.0   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description bluescreenavenger 2016-05-01 15:13:14 UTC 
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xf1a9e800 (LWP 26243))]

Thread 8 (Thread 0xf1667b40 (LWP 26246)):
#0  0xf76fabe9 in __kernel_vsyscall ()
#1  0xf4cfbf8f in poll () at ../sysdeps/unix/syscall-template.S:84
#2  0xf707241d in ?? () from /usr/lib/i386-linux-gnu/libxcb.so.1
#3  0xf707459b in xcb_wait_for_event () from /usr/lib/i386-linux-gnu/libxcb.so.1
#4  0xf177b273 in QXcbEventReader::run (this=0x9f7de08) at qxcbconnection.cpp:1253
#5  0xf4fd943b in QThreadPrivate::start (arg=0x9f7de08) at thread/qthread_unix.cpp:331
#6  0xf4bae2b5 in start_thread (arg=0xf1667b40) at pthread_create.c:333
#7  0xf4d0616e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 7 (Thread 0xf00d5b40 (LWP 26249)):
#0  0xf43e0408 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xf439950b in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xf4399f64 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xf439a194 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xf5208b14 in QEventDispatcherGlib::processEvents (this=0xef700470, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0xf51ad953 in QEventLoop::processEvents (this=0xf00d51d4, flags=...) at kernel/qeventloop.cpp:128
#6  0xf51addaa in QEventLoop::exec (this=0xf00d51d4, flags=...) at kernel/qeventloop.cpp:204
#7  0xf4fd3f1d in QThread::exec (this=0xa02e038) at thread/qthread.cpp:503
#8  0xf6844aff in ?? () from /usr/lib/i386-linux-gnu/libQt5Qml.so.5
#9  0xf4fd943b in QThreadPrivate::start (arg=0xa02e038) at thread/qthread_unix.cpp:331
#10 0xf4bae2b5 in start_thread (arg=0xf00d5b40) at pthread_create.c:333
#11 0xf4d0616e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 6 (Thread 0xecdcfb40 (LWP 26250)):
#0  0xf43e03dd in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xf4399a2c in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xf4399ff1 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xf439a194 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xf5208b14 in QEventDispatcherGlib::processEvents (this=0xec400470, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0xf51ad953 in QEventLoop::processEvents (this=0xecdcf1d4, flags=...) at kernel/qeventloop.cpp:128
#6  0xf51addaa in QEventLoop::exec (this=0xecdcf1d4, flags=...) at kernel/qeventloop.cpp:204
#7  0xf4fd3f1d in QThread::exec (this=0xa01f6e0) at thread/qthread.cpp:503
#8  0xf6844aff in ?? () from /usr/lib/i386-linux-gnu/libQt5Qml.so.5
#9  0xf4fd943b in QThreadPrivate::start (arg=0xa01f6e0) at thread/qthread_unix.cpp:331
#10 0xf4bae2b5 in start_thread (arg=0xecdcfb40) at pthread_create.c:333
#11 0xf4d0616e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 5 (Thread 0xeb8f1b40 (LWP 26251)):
#0  0xf43e03dd in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xf4399a2c in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xf4399ff1 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xf439a194 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xf5208b14 in QEventDispatcherGlib::processEvents (this=0xeaf00470, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0xf51ad953 in QEventLoop::processEvents (this=0xeb8f11d4, flags=...) at kernel/qeventloop.cpp:128
#6  0xf51addaa in QEventLoop::exec (this=0xeb8f11d4, flags=...) at kernel/qeventloop.cpp:204
#7  0xf4fd3f1d in QThread::exec (this=0xa34d450) at thread/qthread.cpp:503
#8  0xf6844aff in ?? () from /usr/lib/i386-linux-gnu/libQt5Qml.so.5
#9  0xf4fd943b in QThreadPrivate::start (arg=0xa34d450) at thread/qthread_unix.cpp:331
#10 0xf4bae2b5 in start_thread (arg=0xeb8f1b40) at pthread_create.c:333
#11 0xf4d0616e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 4 (Thread 0xea5a7b40 (LWP 26252)):
#0  0xf76fabe9 in __kernel_vsyscall ()
#1  0xf4bb3a8c in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/i386/pthread_cond_wait.S:187
#2  0xf4d128cd in __pthread_cond_wait (cond=0xf763e8d0, mutex=0xf763e8b8) at forward.c:149
#3  0xf7506a2c in ?? () from /usr/lib/i386-linux-gnu/libQt5Script.so.5
#4  0xf7506a6c in ?? () from /usr/lib/i386-linux-gnu/libQt5Script.so.5
#5  0xf4bae2b5 in start_thread (arg=0xea5a7b40) at pthread_create.c:333
#6  0xf4d0616e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 3 (Thread 0xe886fb40 (LWP 26253)):
#0  0xf43e0408 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xf439a04c in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xf439a194 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xf5208b14 in QEventDispatcherGlib::processEvents (this=0xe7f00470, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0xf51ad953 in QEventLoop::processEvents (this=0xe886f184, flags=...) at kernel/qeventloop.cpp:128
#5  0xf51addaa in QEventLoop::exec (this=0xe886f184, flags=...) at kernel/qeventloop.cpp:204
#6  0xf4fd3f1d in QThread::exec (this=0xa5ec698) at thread/qthread.cpp:503
#7  0xf6c247a9 in ?? () from /usr/lib/i386-linux-gnu/libQt5Quick.so.5
#8  0xf4fd943b in QThreadPrivate::start (arg=0xa5ec698) at thread/qthread_unix.cpp:331
#9  0xf4bae2b5 in start_thread (arg=0xe886fb40) at pthread_create.c:333
#10 0xf4d0616e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 2 (Thread 0xe20f1b40 (LWP 26255)):
#0  0xf76fabe9 in __kernel_vsyscall ()
#1  0xf4cf4c4f in read () at ../sysdeps/unix/syscall-template.S:84
#2  0xf43df035 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xf4399aea in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xf4399ff1 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xf439a194 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xf5208b14 in QEventDispatcherGlib::processEvents (this=0xe1700470, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0xf51ad953 in QEventLoop::processEvents (this=0xe20f11b4, flags=...) at kernel/qeventloop.cpp:128
#8  0xf51addaa in QEventLoop::exec (this=0xe20f11b4, flags=...) at kernel/qeventloop.cpp:204
#9  0xf4fd3f1d in QThread::exec (this=0xb04ee30) at thread/qthread.cpp:503
#10 0xe25ec980 in KCupsConnection::run() () from /usr/lib/i386-linux-gnu/libkcupslib.so
#11 0xf4fd943b in QThreadPrivate::start (arg=0xb04ee30) at thread/qthread_unix.cpp:331
#12 0xf4bae2b5 in start_thread (arg=0xe20f1b40) at pthread_create.c:333
#13 0xf4d0616e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 1 (Thread 0xf1a9e800 (LWP 26243)):
[KCrash Handler]
#7  0xf6fc7f44 in Plasma::Applet::actions (this=0x0) at ../../../src/plasma/applet.cpp:575
#8  0x08096b6a in ShellCorona::addOutput (this=0x9fb60c0, output=...) at /build/plasma-workspace-VahMbv/plasma-workspace-5.5.5.2/shell/shellcorona.cpp:905
#9  0x08096d36 in ShellCorona::outputEnabledChanged (this=0x9fb60c0) at /build/plasma-workspace-VahMbv/plasma-workspace-5.5.5.2/shell/shellcorona.cpp:799
#10 0x0809e00b in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (ShellCorona::*)()>::call(void (ShellCorona::*)(), ShellCorona*, void**) (arg=<optimized out>, o=0x9fb60c0, f=<optimized out>) at /usr/include/i386-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:501
#11 QtPrivate::FunctionPointer<void (ShellCorona::*)()>::call<QtPrivate::List<>, void>(void (ShellCorona::*)(), ShellCorona*, void**) (arg=<optimized out>, o=0x9fb60c0, f=<optimized out>) at /usr/include/i386-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:520
#12 QtPrivate::QSlotObject<void (ShellCorona::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) (which=1, this_=0xa4106a0, r=0x9fb60c0, a=0xffee50f8, ret=0x0) at /usr/include/i386-linux-gnu/qt5/QtCore/qobject_impl.h:143
#13 0xf51e0230 in QtPrivate::QSlotObjectBase::call (a=0xffee50f8, r=0x9fb60c0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#14 QMetaObject::activate (sender=0x9f6b2f8, signalOffset=3, local_signal_index=6, argv=0x0) at kernel/qobject.cpp:3698
#15 0xf51e0b0d in QMetaObject::activate (sender=0x9f6b2f8, m=0xf729dd28 <KScreen::Output::staticMetaObject>, local_signal_index=6, argv=0x0) at kernel/qobject.cpp:3578
#16 0xf72885b2 in KScreen::Output::isEnabledChanged() () from /usr/lib/i386-linux-gnu/libKF5Screen.so.6
#17 0xf728494a in KScreen::Output::apply(QSharedPointer<KScreen::Output> const&) () from /usr/lib/i386-linux-gnu/libKF5Screen.so.6
#18 0xf72731e2 in KScreen::Config::apply(QSharedPointer<KScreen::Config> const&) () from /usr/lib/i386-linux-gnu/libKF5Screen.so.6
#19 0xf7278d33 in KScreen::ConfigMonitor::Private::updateConfigs(QSharedPointer<KScreen::Config> const&) () from /usr/lib/i386-linux-gnu/libKF5Screen.so.6
#20 0xf727a95f in KScreen::ConfigMonitor::Private::edidReady(QDBusPendingCallWatcher*) () from /usr/lib/i386-linux-gnu/libKF5Screen.so.6
#21 0xf727b0f4 in ?? () from /usr/lib/i386-linux-gnu/libKF5Screen.so.6
#22 0xf51e0230 in QtPrivate::QSlotObjectBase::call (a=0xffee5444, r=0xa496368, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#23 QMetaObject::activate (sender=0xce1af60, signalOffset=3, local_signal_index=0, argv=0xffee5444) at kernel/qobject.cpp:3698
#24 0xf51e0b0d in QMetaObject::activate (sender=0xce1af60, m=0xf5a3eb7c <QDBusPendingCallWatcher::staticMetaObject>, local_signal_index=0, argv=0xffee5444) at kernel/qobject.cpp:3578
#25 0xf5a0bac9 in QDBusPendingCallWatcher::finished (this=0xce1af60, _t1=0xce1af60) at .moc/moc_qdbuspendingcall.cpp:148
#26 0xf5a0d2de in QDBusPendingCallWatcherPrivate::_q_finished (this=<optimized out>) at qdbuspendingcall.cpp:488
#27 QDBusPendingCallWatcher::qt_static_metacall (_o=0xce1af60, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0xd750248) at .moc/moc_qdbuspendingcall.cpp:80
#28 0xf51dd420 in QMetaCallEvent::placeMetaCall (this=0xdc17ec0, object=0xce1af60) at kernel/qobject.cpp:486
#29 0xf51e1243 in QObject::event (this=0xce1af60, e=0xdc17ec0) at kernel/qobject.cpp:1239
#30 0xf5b3d15a in QApplicationPrivate::notify_helper (this=0x9f6bec8, receiver=0xce1af60, e=0xdc17ec0) at kernel/qapplication.cpp:3716
#31 0xf5b4281c in QApplication::notify (this=0xffee5ab8, receiver=0xce1af60, e=0xdc17ec0) at kernel/qapplication.cpp:3499
#32 0xf51b081f in QCoreApplication::notifyInternal (this=0xffee5ab8, receiver=0xce1af60, event=0xdc17ec0) at kernel/qcoreapplication.cpp:965
#33 0xf51b2eff in QCoreApplication::sendEvent (event=0xdc17ec0, receiver=<optimized out>) at kernel/qcoreapplication.h:224
#34 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9f66e50) at kernel/qcoreapplication.cpp:1593
#35 0xf51b33e7 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1451
#36 0xf5208703 in postEventSourceDispatch (s=0x9fa4090) at kernel/qeventdispatcher_glib.cpp:271
#37 0xf4399e29 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#38 0xf439a0c9 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#39 0xf439a194 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#40 0xf5208af3 in QEventDispatcherGlib::processEvents (this=0x9fa23d0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#41 0xf17b08e1 in QPAEventDispatcherGlib::processEvents (this=0x9fa23d0, flags=...) at eventdispatchers/qeventdispatcher_glib.cpp:115
#42 0xf51ad953 in QEventLoop::processEvents (this=0xffee59d8, flags=...) at kernel/qeventloop.cpp:128
#43 0xf51addaa in QEventLoop::exec (this=0xffee59d8, flags=...) at kernel/qeventloop.cpp:204
#44 0xf51b6385 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#45 0xf54d5931 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542
#46 0xf5b39024 in QApplication::exec () at kernel/qapplication.cpp:2976
#47 0x08071eee in main (argc=4, argv=0xffee5bb4) at /build/plasma-workspace-VahMbv/plasma-workspace-5.5.5.2/shell/main.cpp:181


Reproducible: Sometimes




I'm not sure exactly what causes it to crash, I lock my screens, turn off my monitors, and if I leave it running, I'd have either ~1 or ~20 Dr Konqi dialogs. Somtimes the panel on the second screen moves to my primary monitor, and the wallpaper will be different on the secondary monitor (the default one)
I haven't had a plasmashell crash when the screen is actually unlocked
 ....but I'm having some issues logging into Dr Konqi for some reason to report this with Dr Konqi...
Comment 1 Marco Martin 2016-05-04 10:50:01 UTC 

*** This bug has been marked as a duplicate of bug 361548 ***