Bug 400226

Summary:	Plasma segmentation fault when switching VPN servers with Plasma's taskbar WiFi panel
Product:	[Plasma] plasmashell	Reporter:	Aile S <rockonaile>
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	coderdude1999, frankie.cruz8665, notmart, plasma-bugs-null, rockonaile
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	5.13.5
Target Milestone:	1.0
Platform:	Fedora RPMs
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=349289
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Aile S 2018-10-24 01:44:25 UTC

Application: plasmashell (5.13.5)

Qt Version: 5.11.1
Frameworks Version: 5.48.0
Operating System: Linux 4.18.14-200.fc28.x86_64 x86_64
Distribution: "Fedora release 28 (Twenty Eight)"

-- Information about the crash:
- What I was doing when the application crashed:
From the Plasma taskbar WiFi Connections applet, I disconnected from one PIA VPN Server using NetworkManager-OpenVPN and connected to another one; this caused Plasma to crash and restart itself a few seconds later. This does **not** happen every time, in fact I cannot easily reproduce it.
- Unusual behavior I noticed:
The desktop froze for a moment before crashing, it was not immediate.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fef0dec8400 (LWP 1567))]

Thread 14 (Thread 0x7fee130fe700 (LWP 8152)):
[KCrash Handler]
#6  0x00007fef1ee52564 in QSGSimpleTextureNode::texture() const () at /lib64/libQt5Quick.so.5
#7  0x00007fee65283651 in Plotter::render() () at /usr/lib64/qt5/qml/org/kde/kquickcontrolsaddons/libkquickcontrolsaddonsplugin.so
#8  0x00007fef1afcaf43 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#9  0x00007fef1eed9a84 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /lib64/libQt5Quick.so.5
#10 0x00007fef1ee7ed84 in QSGRenderThread::syncAndRender() () at /lib64/libQt5Quick.so.5
#11 0x00007fef1ee829c8 in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#12 0x00007fef1ae12b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#13 0x00007fef1948b594 in start_thread () at /lib64/libpthread.so.0
#14 0x00007fef1a148e6f in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7fee13fff700 (LWP 13518)):
#0  0x00007fef1949151c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fef1ae13183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fef1ee827a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007fef1ee82a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007fef1ae12b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007fef1948b594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fef1a148e6f in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7fee1cccd700 (LWP 12674)):
#0  0x00007fef1949151c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fef1ae13183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fef1ee827a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007fef1ee82a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007fef1ae12b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007fef1948b594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fef1a148e6f in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7fee1e6de700 (LWP 3516)):
#0  0x00007fef1949151c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fef1ae13183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fef1ee827a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007fef1ee82a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007fef1ae12b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007fef1948b594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fef1a148e6f in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7fee389b4700 (LWP 2744)):
#0  0x00007fef1949151c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fef1ae13183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fef1ee827a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007fef1ee82a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007fef1ae12b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007fef1948b594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fef1a148e6f in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7fee391b5700 (LWP 2364)):
#0  0x00007fef1949151c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fef1ae13183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fef1ee827a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007fef1ee82a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007fef1ae12b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007fef1948b594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fef1a148e6f in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7fee3a8c6700 (LWP 2308)):
#0  0x00007fef1949151c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fef1ae13183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fef1ee827a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007fef1ee82a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007fef1ae12b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007fef1948b594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fef1a148e6f in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7fee42ff0700 (LWP 2277)):
#0  0x00007fef1a13e3e9 in poll () at /lib64/libc.so.6
#1  0x00007fef12550bc6 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fef12550cf0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fef1aff32ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fef1afa1b7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fef1ae096b6 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fee459aa5fb in KCupsConnection::run() () at /lib64/libkcupslib.so
#7  0x00007fef1ae12b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fef1948b594 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fef1a148e6f in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7fee62662700 (LWP 2177)):
#0  0x00007fef1949151c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fef1ae13183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fef1ee827a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007fef1ee82a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007fef1ae12b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007fef1948b594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fef1a148e6f in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7fee63c72700 (LWP 2168)):
#0  0x00007fef1a13e3e9 in poll () at /lib64/libc.so.6
#1  0x00007fef12550bc6 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fef12550cf0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fef1aff32ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fef1afa1b7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fef1ae096b6 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fef1ee01a4a in QQuickPixmapReader::run() () at /lib64/libQt5Quick.so.5
#7  0x00007fef1ae12b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fef1948b594 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fef1a148e6f in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7feef5d1c700 (LWP 2064)):
#0  0x00007fef1949151c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fef211869ba in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007fef21186a25 in  () at /lib64/libQt5Script.so.5
#3  0x00007fef1948b594 in start_thread () at /lib64/libpthread.so.0
#4  0x00007fef1a148e6f in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7feef7fff700 (LWP 1915)):
#0  0x00007fef1a139e54 in read () at /lib64/libc.so.6
#1  0x00007fef125960f0 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x00007fef125506bb in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007fef12550b70 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007fef12550cf0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007fef1aff32ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fef1afa1b7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007fef1ae096b6 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007fef1eb6cd09 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#9  0x00007fef1ae12b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#10 0x00007fef1948b594 in start_thread () at /lib64/libpthread.so.0
#11 0x00007fef1a148e6f in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7feefde21700 (LWP 1675)):
#0  0x00007fef1a13e3e9 in poll () at /lib64/libc.so.6
#1  0x00007fef12550bc6 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fef12550cf0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fef1aff32ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fef1afa1b7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fef1ae096b6 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fef1cad37b9 in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#7  0x00007fef1ae12b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fef1948b594 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fef1a148e6f in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fef0dec8400 (LWP 1567)):
#0  0x00007fef1949151c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fef1ae13183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fef1ee7f8b7 in QSGThreadedRenderLoop::polishAndSync(QSGThreadedRenderLoop::Window*, bool) () at /lib64/libQt5Quick.so.5
#3  0x00007fef1ee80492 in QSGThreadedRenderLoop::handleUpdateRequest(QQuickWindow*) () at /lib64/libQt5Quick.so.5
#4  0x00007fef1eee4f06 in QQuickWindow::event(QEvent*) () at /lib64/libQt5Quick.so.5
#5  0x00007fef212b3a4b in PlasmaQuick::Dialog::event(QEvent*) () at /lib64/libKF5PlasmaQuick.so.5
#6  0x00007fef1bfb3475 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#7  0x00007fef1bfbab90 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#8  0x00007fef1afa2c36 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#9  0x00007fef1b354f25 in QWindowPrivate::deliverUpdateRequest() () at /lib64/libQt5Gui.so.5
#10 0x00007fef1b355459 in QWindow::event(QEvent*) () at /lib64/libQt5Gui.so.5
#11 0x00007fef1eee4e5f in QQuickWindow::event(QEvent*) () at /lib64/libQt5Quick.so.5
#12 0x00007fef212b3a4b in PlasmaQuick::Dialog::event(QEvent*) () at /lib64/libKF5PlasmaQuick.so.5
#13 0x00007fef1bfb3475 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#14 0x00007fef1bfbab90 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#15 0x00007fef1afa2c36 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#16 0x00007fef1aff2579 in QTimerInfoList::activateTimers() () at /lib64/libQt5Core.so.5
#17 0x00007fef1aff2e1c in timerSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#18 0x00007fef1255088d in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#19 0x00007fef12550c58 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#20 0x00007fef12550cf0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#21 0x00007fef1aff3293 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#22 0x00007fef016177c5 in QPAEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5XcbQpa.so.5
#23 0x00007fef1afa1b7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#24 0x00007fef1afa9c46 in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#25 0x000055b836e37e5f in main ()

Possible duplicates by query: bug 395708.

Reported using DrKonqi

Comment 1 Christoph Feck 2018-11-09 13:16:14 UTC

*** Bug 400206 has been marked as a duplicate of this bug. ***

Comment 2 Christoph Feck 2018-12-06 03:19:02 UTC

*** Bug 401199 has been marked as a duplicate of this bug. ***

Comment 3 Marco Martin 2018-12-14 16:50:14 UTC


*** This bug has been marked as a duplicate of bug 385731 ***