Bug 369553

Summary: Plasma crashed when disabling WiFi in KDE connect
Product: [Plasma] plasmashell Reporter: xapeiron
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: bhush94, plasma-bugs
Priority: NOR Keywords: drkonqi
Version: 5.7.5   
Target Milestone: 1.0   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description xapeiron 2016-09-30 08:26:52 UTC 
Application: plasmashell (5.7.5)

Qt Version: 5.6.1
Frameworks Version: 5.26.0
Operating System: Linux 4.7.4-200.fc24.x86_64 x86_64
Distribution: "Fedora release 24 (Twenty Four)"

-- Information about the crash:
- What I was doing when the application crashed:
Disabling Wi-Fi in KDE Connect

- Unusual behavior I noticed:
Very slow wi-fi connection. The reason why i disabled wi-fi was very slow speed (max 30kbps). When plasma restarted a I reenabled Wi-Fi, speed was back to normal.

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 0x7f151a015980 (LWP 1788))]

Thread 13 (Thread 0x7f1443612700 (LWP 3755)):
[KCrash Handler]
#6  0x00007f1529bf1620 in __memcpy_sse2_unaligned () from /lib64/libc.so.6
#7  0x00007f147570ac78 in QList<PlotData*>::detach_helper(int) () from /usr/lib64/qt5/qml/org/kde/kquickcontrolsaddons/libkquickcontrolsaddonsplugin.so
#8  0x00007f147570781d in Plotter::render() () from /usr/lib64/qt5/qml/org/kde/kquickcontrolsaddons/libkquickcontrolsaddonsplugin.so
#9  0x00007f152aa2aebc in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#10 0x00007f152e55d0ce in QQuickWindowPrivate::renderSceneGraph(QSize const&) () from /lib64/libQt5Quick.so.5
#11 0x00007f152e52efaf in QSGRenderThread::syncAndRender() () from /lib64/libQt5Quick.so.5
#12 0x00007f152e53454c in QSGRenderThread::run() () from /lib64/libQt5Quick.so.5
#13 0x00007f152a86499a in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#14 0x00007f1528fa95ca in start_thread () from /lib64/libpthread.so.0
#15 0x00007f1529c57f6d in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f1443e13700 (LWP 3480)):
#0  0x00007f1528faebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f152a86501a in QWaitCondition::wait(QMutex*, unsigned long) () from /lib64/libQt5Core.so.5
#2  0x00007f152e533d95 in QSGRenderThread::processEventsAndWaitForMore() () from /lib64/libQt5Quick.so.5
#3  0x00007f152e53468a in QSGRenderThread::run() () from /lib64/libQt5Quick.so.5
#4  0x00007f152a86499a in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#5  0x00007f1528fa95ca in start_thread () from /lib64/libpthread.so.0
#6  0x00007f1529c57f6d in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f144a654700 (LWP 2246)):
#0  0x00007f1528faebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f152a86501a in QWaitCondition::wait(QMutex*, unsigned long) () from /lib64/libQt5Core.so.5
#2  0x00007f152e533d95 in QSGRenderThread::processEventsAndWaitForMore() () from /lib64/libQt5Quick.so.5
#3  0x00007f152e53468a in QSGRenderThread::run() () from /lib64/libQt5Quick.so.5
#4  0x00007f152a86499a in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#5  0x00007f1528fa95ca in start_thread () from /lib64/libpthread.so.0
#6  0x00007f1529c57f6d in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f1453fff700 (LWP 2172)):
#0  0x00007f1528faebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f152a86501a in QWaitCondition::wait(QMutex*, unsigned long) () from /lib64/libQt5Core.so.5
#2  0x00007f152e533d95 in QSGRenderThread::processEventsAndWaitForMore() () from /lib64/libQt5Quick.so.5
#3  0x00007f152e53468a in QSGRenderThread::run() () from /lib64/libQt5Quick.so.5
#4  0x00007f152a86499a in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#5  0x00007f1528fa95ca in start_thread () from /lib64/libpthread.so.0
#6  0x00007f1529c57f6d in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f14592c1700 (LWP 2123)):
#0  0x00007ffea05f0b84 in clock_gettime ()
#1  0x00007f1529c664e6 in clock_gettime () from /lib64/libc.so.6
#2  0x00007f152a900ab3 in qt_gettime() () from /lib64/libQt5Core.so.5
#3  0x00007f152aa50869 in QTimerInfoList::updateCurrentTime() () from /lib64/libQt5Core.so.5
#4  0x00007f152aa50c65 in QTimerInfoList::timerWait(timespec&) () from /lib64/libQt5Core.so.5
#5  0x00007f152aa51dac in timerSourcePrepareHelper(GTimerSource*, int*) () from /lib64/libQt5Core.so.5
#6  0x00007f152aa51e75 in timerSourcePrepare(_GSource*, int*) () from /lib64/libQt5Core.so.5
#7  0x00007f15252abf59 in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#8  0x00007f15252ac92b in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#9  0x00007f15252acb1c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#10 0x00007f152aa5224b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#11 0x00007f152aa015ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#12 0x00007f152a860343 in QThread::exec() () from /lib64/libQt5Core.so.5
#13 0x00007f145ae992e7 in KCupsConnection::run() () from /lib64/libkcupslib.so
#14 0x00007f152a86499a in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#15 0x00007f1528fa95ca in start_thread () from /lib64/libpthread.so.0
#16 0x00007f1529c57f6d in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f146f7fe700 (LWP 1969)):
#0  0x00007f1528faebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f152a86501a in QWaitCondition::wait(QMutex*, unsigned long) () from /lib64/libQt5Core.so.5
#2  0x00007f152e533d95 in QSGRenderThread::processEventsAndWaitForMore() () from /lib64/libQt5Quick.so.5
#3  0x00007f152e53468a in QSGRenderThread::run() () from /lib64/libQt5Quick.so.5
#4  0x00007f152a86499a in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#5  0x00007f1528fa95ca in start_thread () from /lib64/libpthread.so.0
#6  0x00007f1529c57f6d in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f146ffff700 (LWP 1949)):
#0  0x00007ffea05f0b84 in clock_gettime ()
#1  0x00007f1529c664e6 in clock_gettime () from /lib64/libc.so.6
#2  0x00007f152a900ab3 in qt_gettime() () from /lib64/libQt5Core.so.5
#3  0x00007f152aa50869 in QTimerInfoList::updateCurrentTime() () from /lib64/libQt5Core.so.5
#4  0x00007f152aa50c65 in QTimerInfoList::timerWait(timespec&) () from /lib64/libQt5Core.so.5
#5  0x00007f152aa51dac in timerSourcePrepareHelper(GTimerSource*, int*) () from /lib64/libQt5Core.so.5
#6  0x00007f152aa51e75 in timerSourcePrepare(_GSource*, int*) () from /lib64/libQt5Core.so.5
#7  0x00007f15252abf59 in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#8  0x00007f15252ac92b in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#9  0x00007f15252acb1c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#10 0x00007f152aa5224b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#11 0x00007f152aa015ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#12 0x00007f152a860343 in QThread::exec() () from /lib64/libQt5Core.so.5
#13 0x00007f152e4c2c66 in QQuickPixmapReader::run() () from /lib64/libQt5Quick.so.5
#14 0x00007f152a86499a in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#15 0x00007f1528fa95ca in start_thread () from /lib64/libpthread.so.0
#16 0x00007f1529c57f6d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f14fd4d2700 (LWP 1925)):
#0  0x00007f1528faebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f1530357bc4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQt5Script.so.5
#2  0x00007f1530357c09 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQt5Script.so.5
#3  0x00007f1528fa95ca in start_thread () from /lib64/libpthread.so.0
#4  0x00007f1529c57f6d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f14ff21d700 (LWP 1886)):
#0  0x00007f15252f0a30 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#1  0x00007f15252ac9fa in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f15252acb1c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f152aa5224b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f152aa015ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f152a860343 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f152db398f5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007f152a86499a in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f1528fa95ca in start_thread () from /lib64/libpthread.so.0
#9  0x00007f1529c57f6d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f150cce4700 (LWP 1817)):
#0  0x00007ffea05f0b84 in clock_gettime ()
#1  0x00007f1529c664e6 in clock_gettime () from /lib64/libc.so.6
#2  0x00007f152a900ab3 in qt_gettime() () from /lib64/libQt5Core.so.5
#3  0x00007f152aa50869 in QTimerInfoList::updateCurrentTime() () from /lib64/libQt5Core.so.5
#4  0x00007f152aa50c65 in QTimerInfoList::timerWait(timespec&) () from /lib64/libQt5Core.so.5
#5  0x00007f152aa51dac in timerSourcePrepareHelper(GTimerSource*, int*) () from /lib64/libQt5Core.so.5
#6  0x00007f152aa51e75 in timerSourcePrepare(_GSource*, int*) () from /lib64/libQt5Core.so.5
#7  0x00007f15252abf59 in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#8  0x00007f15252ac92b in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#9  0x00007f15252acb1c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#10 0x00007f152aa5224b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#11 0x00007f152aa015ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#12 0x00007f152a860343 in QThread::exec() () from /lib64/libQt5Core.so.5
#13 0x00007f152db398f5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#14 0x00007f152a86499a in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#15 0x00007f1528fa95ca in start_thread () from /lib64/libpthread.so.0
#16 0x00007f1529c57f6d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f150e729700 (LWP 1808)):
#0  0x00007f15252f0a09 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f15252ac29e in g_main_context_check () from /lib64/libglib-2.0.so.0
#2  0x00007f15252ac9a4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f15252acb1c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f152aa5224b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f152aa015ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007f152a860343 in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x00007f152b14e559 in QDBusConnectionManager::run() () from /lib64/libQt5DBus.so.5
#8  0x00007f152a86499a in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#9  0x00007f1528fa95ca in start_thread () from /lib64/libpthread.so.0
#10 0x00007f1529c57f6d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f150ff8e700 (LWP 1806)):
#0  0x00007f1529c4c3ed in poll () from /lib64/libc.so.6
#1  0x00007f152ec7ff80 in _xcb_conn_wait () from /lib64/libxcb.so.1
#2  0x00007f152ec81b79 in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007f151345cda9 in QXcbEventReader::run() () from /lib64/libQt5XcbQpa.so.5
#4  0x00007f152a86499a in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#5  0x00007f1528fa95ca in start_thread () from /lib64/libpthread.so.0
#6  0x00007f1529c57f6d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f151a015980 (LWP 1788)):
#0  0x00007f1528faebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f152a86501a in QWaitCondition::wait(QMutex*, unsigned long) () from /lib64/libQt5Core.so.5
#2  0x00007f152e5310e8 in QSGThreadedRenderLoop::polishAndSync(QSGThreadedRenderLoop::Window*, bool) () from /lib64/libQt5Quick.so.5
#3  0x00007f152e531a17 in QSGThreadedRenderLoop::handleUpdateRequest(QQuickWindow*) () from /lib64/libQt5Quick.so.5
#4  0x00007f152e567525 in QQuickWindow::event(QEvent*) () from /lib64/libQt5Quick.so.5
#5  0x00007f153048c1cb in PlasmaQuick::Dialog::event(QEvent*) () from /lib64/libKF5PlasmaQuick.so.5
#6  0x00007f152b320c0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#7  0x00007f152b3260ef in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#8  0x00007f152aa027aa in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#9  0x00007f152ad49ece in QWindowPrivate::deliverUpdateRequest() () from /lib64/libQt5Gui.so.5
#10 0x00007f152ad4a419 in QWindow::event(QEvent*) () from /lib64/libQt5Gui.so.5
#11 0x00007f152e567383 in QQuickWindow::event(QEvent*) () from /lib64/libQt5Quick.so.5
#12 0x00007f153048c1cb in PlasmaQuick::Dialog::event(QEvent*) () from /lib64/libKF5PlasmaQuick.so.5
#13 0x00007f152b320c0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#14 0x00007f152b3260ef in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#15 0x00007f152aa027aa in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#16 0x00007f152aa517ab in QTimerInfoList::activateTimers() () from /lib64/libQt5Core.so.5
#17 0x00007f152aa51d01 in timerSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5Core.so.5
#18 0x00007f15252ac6ba in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#19 0x00007f15252aca70 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#20 0x00007f15252acb1c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#21 0x00007f152aa5222f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#22 0x00007f152aa015ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#23 0x00007f152aa0917c in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#24 0x0000563ec41b2fef in main ()

Possible duplicates by query: bug 369224, bug 361815, bug 359061, bug 356079.

Reported using DrKonqi
Comment 1 David Edmundson 2016-09-30 13:06:54 UTC 

*** This bug has been marked as a duplicate of bug 368071 ***