Bug 378739

Summary:	Plasma crash at login
Product:	[Plasma] plasmashell	Reporter:	Ian <igiwatson>
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	2112871, bshah, notmart, plasma-bugs-null
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	5.8.6
Target Milestone:	1.0
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Ian 2017-04-13 11:16:49 UTC

Application: plasmashell (5.8.6)

Qt Version: 5.7.1
Frameworks Version: 5.33.0
Operating System: Linux 4.10.8-200.fc25.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:
Just logged in (via lightdm). I will logout and try again to see if it repeats.
Platform Fedora 25.
Dell vostro.  Intel Core i5 M450 2.4GHz.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f13f18c23c0 (LWP 1398))]

Thread 8 (Thread 0x7f1333bf7700 (LWP 2697)):
#0  0x00007f13f72c88ef in g_main_context_query () from /lib64/libglib-2.0.so.0
#1  0x00007f13f72c90d8 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f13f72c927c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f13ff56d6eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f13ff51e68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f13ff37b5e3 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f13354b12c7 in KCupsConnection::run() () from /lib64/libkcupslib.so
#7  0x00007f13ff37f9ca in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f13fdab96ca in start_thread () from /lib64/libpthread.so.0
#9  0x00007f13fe772f7f in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f1346e75700 (LWP 2412)):
#0  0x00007f13f730e875 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f13f72c86aa in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#2  0x00007f13f72c908b in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f13f72c927c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f13ff56d6eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f13ff51e68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007f13ff37b5e3 in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x00007f1402f7e8b6 in QQuickPixmapReader::run() () from /lib64/libQt5Quick.so.5
#8  0x00007f13ff37f9ca in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#9  0x00007f13fdab96ca in start_thread () from /lib64/libpthread.so.0
#10 0x00007f13fe772f7f in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f13dcba1700 (LWP 2359)):
#0  0x00007f13fdabf460 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f140503f2f4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQt5Script.so.5
#2  0x00007f140503f339 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQt5Script.so.5
#3  0x00007f13fdab96ca in start_thread () from /lib64/libpthread.so.0
#4  0x00007f13fe772f7f in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f13de9ab700 (LWP 1889)):
#0  0x00007f13f72c8b7a in g_main_context_check () from /lib64/libglib-2.0.so.0
#1  0x00007f13f72c9104 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f13f72c927c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f13ff56d6eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f13ff51e68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f13ff37b5e3 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f14025f34e5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007f13ff37f9ca in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f13fdab96ca in start_thread () from /lib64/libpthread.so.0
#9  0x00007f13fe772f7f in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f13dffff700 (LWP 1635)):
#0  0x00007f13ff56c1a3 in QTimerInfoList::timerWait(timespec&) () from /lib64/libQt5Core.so.5
#1  0x00007f13ff56d38c in timerSourcePrepareHelper(GTimerSource*, int*) () from /lib64/libQt5Core.so.5
#2  0x00007f13ff56d455 in timerSourcePrepare(_GSource*, int*) () from /lib64/libQt5Core.so.5
#3  0x00007f13f72c869d in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#4  0x00007f13f72c908b in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#5  0x00007f13f72c927c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#6  0x00007f13ff56d6eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#7  0x00007f13ff51e68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#8  0x00007f13ff37b5e3 in QThread::exec() () from /lib64/libQt5Core.so.5
#9  0x00007f14025f34e5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#10 0x00007f13ff37f9ca in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#11 0x00007f13fdab96ca in start_thread () from /lib64/libpthread.so.0
#12 0x00007f13fe772f7f in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f13e5e8e700 (LWP 1429)):
#0  0x00007f13fe76701d in poll () from /lib64/libc.so.6
#1  0x00007f13f72c9166 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f13f72c927c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f13ff56d6eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f13ff51e68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f13ff37b5e3 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f13ffc1b739 in QDBusConnectionManager::run() () from /lib64/libQt5DBus.so.5
#7  0x00007f13ff37f9ca in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f13fdab96ca in start_thread () from /lib64/libpthread.so.0
#9  0x00007f13fe772f7f in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f13e76c9700 (LWP 1422)):
#0  0x00007f13fe76701d in poll () from /lib64/libc.so.6
#1  0x00007f140394ad10 in _xcb_conn_wait () from /lib64/libxcb.so.1
#2  0x00007f140394caa9 in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007f13eacfed69 in QXcbEventReader::run() () from /lib64/libQt5XcbQpa.so.5
#4  0x00007f13ff37f9ca in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#5  0x00007f13fdab96ca in start_thread () from /lib64/libpthread.so.0
#6  0x00007f13fe772f7f in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f13f18c23c0 (LWP 1398)):
[KCrash Handler]
#6  0x00007f13ff85b5d0 in QWindow::screen() const () from /lib64/libQt5Gui.so.5
#7  0x000056349f581b64 in ShellCorona::primaryOutputChanged() ()
#8  0x00007f13ff546a56 in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#9  0x00007f13ff84c732 in QGuiApplication::primaryScreenChanged(QScreen*) () from /lib64/libQt5Gui.so.5
#10 0x00007f13eacff2ac in QXcbConnection::destroyScreen(QXcbScreen*) () from /lib64/libQt5XcbQpa.so.5
#11 0x00007f13eacffb3d in QXcbConnection::updateScreens(xcb_randr_notify_event_t const*) () from /lib64/libQt5XcbQpa.so.5
#12 0x00007f13ead00da3 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () from /lib64/libQt5XcbQpa.so.5
#13 0x00007f13ead01225 in QXcbConnection::processXcbEvents() () from /lib64/libQt5XcbQpa.so.5
#14 0x00007f13ff5477e9 in QObject::event(QEvent*) () from /lib64/libQt5Core.so.5
#15 0x00007f13ffdebecc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#16 0x00007f13ffdf3671 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#17 0x00007f13ff51f6fa in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#18 0x00007f13ff521de0 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt5Core.so.5
#19 0x00007f13ff56d653 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5Core.so.5
#20 0x00007f13f72c8e52 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#21 0x00007f13f72c91d0 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#22 0x00007f13f72c927c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#23 0x00007f13ff56d6cf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#24 0x00007f13ff51e68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#25 0x00007f13ff52618c in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#26 0x000056349f55f752 in main ()

Possible duplicates by query: bug 378408.

Reported using DrKonqi

Comment 1 Ivan Stanton 2017-04-13 14:55:48 UTC

Same thing happens for me, although the crash is not noticeable and sometimes a similar thing happens w/ akonadi-control.
As usual, I have KDE neon Developer - so this is not just a bug in KDE Stable or KDE LTS

Comment 2 Marco Martin 2017-04-21 13:49:46 UTC


*** This bug has been marked as a duplicate of bug 377251 ***