Bug 382012

Summary:	Plasma crashes when stopping VPN
Product:	[Plasma] plasmashell	Reporter:	Andre <a.r.welter>
Component:	Networks widget	Assignee:	Jan Grulich <jgrulich>
Status:	RESOLVED FIXED
Severity:	crash	CC:	bug-reports, jgrulich, notmart, plasma-bugs-null, rumanzo, valdikss, xeno
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	master
Target Milestone:	1.0
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	crash dump with debuginfo

Description Andre 2017-07-05 12:00:41 UTC

Application: plasmashell (5.10.1)

Qt Version: 5.7.1
Frameworks Version: 5.35.0
Operating System: Linux 4.11.8-300.fc26.x86_64 x86_64
Distribution: "Fedora release 26 (Twenty Six)"

-- Information about the crash:
Plasma always crashes when I stop a acitve VPN connection through the KDE NetworkManager Applet.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0cd0fd04c0 (LWP 4408))]

Thread 9 (Thread 0x7f0bfdd1e700 (LWP 2581)):
#0  0x00007f0cdcf31aad in poll () from /lib64/libc.so.6
#1  0x00007f0cd5c80569 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f0cd5c8067c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f0cddd4cd0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f0cddcfcb8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f0cddb51efa in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f0ce0dd79b5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007f0cddb561ee in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f0cdc27936d in start_thread () from /lib64/libpthread.so.0
#9  0x00007f0cdcf3db9f in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f0c13cb7700 (LWP 5320)):
#0  0x00007f0cdcf31aad in poll () from /lib64/libc.so.6
#1  0x00007f0cd5c80569 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f0cd5c8067c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f0cddd4cd0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f0cddcfcb8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f0cddb51efa in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f0c1661d497 in KCupsConnection::run() () from /lib64/libkcupslib.so
#7  0x00007f0cddb561ee in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f0cdc27936d in start_thread () from /lib64/libpthread.so.0
#9  0x00007f0cdcf3db9f in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f0c2637a700 (LWP 5070)):
#0  0x00007f0cd5c80668 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#1  0x00007f0cddd4cd0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#2  0x00007f0cddcfcb8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#3  0x00007f0cddb51efa in QThread::exec() () from /lib64/libQt5Core.so.5
#4  0x00007f0ce175eff6 in QQuickPixmapReader::run() () from /lib64/libQt5Quick.so.5
#5  0x00007f0cddb561ee in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#6  0x00007f0cdc27936d in start_thread () from /lib64/libpthread.so.0
#7  0x00007f0cdcf3db9f in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f0cb3fff700 (LWP 4544)):
#0  0x00007f0cdc27f81b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f0ce3831534 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQt5Script.so.5
#2  0x00007f0ce3831579 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQt5Script.so.5
#3  0x00007f0cdc27936d in start_thread () from /lib64/libpthread.so.0
#4  0x00007f0cdcf3db9f in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f0cbe130700 (LWP 4510)):
#0  0x00007f0cdcf2d1ad in read () from /lib64/libc.so.6
#1  0x00007f0cd5cc4170 in g_wakeup_acknowledge () from /lib64/libglib-2.0.so.0
#2  0x00007f0cd5c80078 in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x00007f0cd5c80510 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#4  0x00007f0cd5c8067c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007f0cddd4cd0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007f0cddcfcb8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#7  0x00007f0cddb51efa in QThread::exec() () from /lib64/libQt5Core.so.5
#8  0x00007f0ce0dd79b5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#9  0x00007f0cddb561ee in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#10 0x00007f0cdc27936d in start_thread () from /lib64/libpthread.so.0
#11 0x00007f0cdcf3db9f in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f0cbf9d3700 (LWP 4474)):
#0  0x00007f0cd5c7d4b2 in g_source_iter_next () from /lib64/libglib-2.0.so.0
#1  0x00007f0cd5c7f9fb in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#2  0x00007f0cd5c8049b in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f0cd5c8067c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f0cddd4cd0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f0cddcfcb8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007f0cddb51efa in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x00007f0ce0dd79b5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f0cddb561ee in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#9  0x00007f0cdc27936d in start_thread () from /lib64/libpthread.so.0
#10 0x00007f0cdcf3db9f in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f0cc5460700 (LWP 4451)):
#0  0x00007f0cdcf31aad in poll () from /lib64/libc.so.6
#1  0x00007f0cd5c80569 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f0cd5c8067c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f0cddd4cd0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f0cddcfcb8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f0cddb51efa in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f0cddf57709 in QDBusConnectionManager::run() () from /lib64/libQt5DBus.so.5
#7  0x00007f0cddb561ee in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f0cdc27936d in start_thread () from /lib64/libpthread.so.0
#9  0x00007f0cdcf3db9f in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f0cc6cd1700 (LWP 4447)):
#0  0x00007f0cdcf31aad in poll () from /lib64/libc.so.6
#1  0x00007f0ce212dc97 in _xcb_conn_wait () from /lib64/libxcb.so.1
#2  0x00007f0ce212fa8a in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007f0cca32ab99 in QXcbEventReader::run() () from /lib64/libQt5XcbQpa.so.5
#4  0x00007f0cddb561ee in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#5  0x00007f0cdc27936d in start_thread () from /lib64/libpthread.so.0
#6  0x00007f0cdcf3db9f in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f0cd0fd04c0 (LWP 4408)):
[KCrash Handler]
#6  0x00007f0c118d9050 in NetworkManager::Device::ipInterfaceName() const () from /lib64/libKF5NetworkManagerQt.so.6
#7  0x00007f0c11ee92b0 in NetworkModel::addAvailableConnection(QString const&, QSharedPointer<NetworkManager::Device> const&) () from /lib64/libplasmanm_internal.so
#8  0x00007f0c11eea0ae in NetworkModel::availableConnectionAppeared(QString const&) () from /lib64/libplasmanm_internal.so
#9  0x00007f0cddd254b7 in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#10 0x00007f0c1198de95 in NetworkManager::Device::availableConnectionAppeared(QString const&) () from /lib64/libKF5NetworkManagerQt.so.6
#11 0x00007f0c118db5ed in NetworkManager::DevicePrivate::propertyChanged(QString const&, QVariant const&) () from /lib64/libKF5NetworkManagerQt.so.6
#12 0x00007f0c11928680 in NetworkManager::GreDevicePrivate::propertyChanged(QString const&, QVariant const&) () from /lib64/libKF5NetworkManagerQt.so.6
#13 0x00007f0c118d9692 in NetworkManager::DevicePrivate::propertiesChanged(QMap<QString, QVariant> const&) () from /lib64/libKF5NetworkManagerQt.so.6
#14 0x00007f0c1199d565 in NetworkManager::DevicePrivate::qt_metacall(QMetaObject::Call, int, void**) () from /lib64/libKF5NetworkManagerQt.so.6
#15 0x00007f0cddf63458 in QDBusConnectionPrivate::deliverCall(QObject*, int, QDBusMessage const&, QVector<int> const&, int) () from /lib64/libQt5DBus.so.5
#16 0x00007f0cddd26199 in QObject::event(QEvent*) () from /lib64/libQt5Core.so.5
#17 0x00007f0cde5e3d9c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#18 0x00007f0cde5eb3d4 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#19 0x00007f0cddcfdb8b in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#20 0x00007f0cddcffd6b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt5Core.so.5
#21 0x00007f0cddd4cc73 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5Core.so.5
#22 0x00007f0cd5c80247 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#23 0x00007f0cd5c805e8 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#24 0x00007f0cd5c8067c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#25 0x00007f0cddd4ccef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#26 0x00007f0cddcfcb8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#27 0x00007f0cddd047dc in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#28 0x000055fa2ee2b3b2 in main ()

Reported using DrKonqi

Comment 1 Jan Grulich 2017-07-10 12:37:45 UTC

Can you please install debug symbols and provide a proper backtrace. Also please do not paste it here as part of your comment but rather add it as an attachment.

Comment 2 Christoph Feck 2017-07-26 17:31:18 UTC

If you can provide the information requested in comment #1, please add it.

Comment 3 Andre 2017-07-29 17:15:48 UTC

Created attachment 106954 [details]
crash dump with debuginfo

Comment 4 Andre 2017-07-29 17:18:22 UTC

Sorry for the slow response. If you need more debugging, I'll be happy to provide it.

Comment 5 Jan Grulich 2017-07-31 09:51:01 UTC

What kind of VPN is that?

Comment 6 Andre 2017-07-31 10:09:10 UTC

It's openvpn.

Comment 7 Jan Grulich 2017-11-07 12:26:17 UTC

*** Bug 386609 has been marked as a duplicate of this bug. ***

Comment 8 Jan Grulich 2017-11-27 09:10:25 UTC

*** Bug 387265 has been marked as a duplicate of this bug. ***

Comment 9 Jan Grulich 2017-12-04 18:30:45 UTC

*** Bug 387495 has been marked as a duplicate of this bug. ***

Comment 10 Jan Grulich 2018-01-03 07:31:43 UTC

*** Bug 387890 has been marked as a duplicate of this bug. ***

Comment 11 valdikss 2018-05-06 16:49:38 UTC

Duplicate of bug 393707

Comment 12 valdikss 2018-05-12 15:03:35 UTC

Fixed in git commit 37a924609d79e9fb87ef9ad4234ab335aa4db362 by Albert Astals Cid.
Committed on 06/05/2018 at 17:58.
Pushed by aacid into branch 'Plasma/5.12'.

Comment 13 Ben Cooksley 2024-12-23 18:25:48 UTC

Bulk transfer as requested in T17796