375750 2017-01-30 12:51:01 +0000 Plasma crashes when docking/undocking the laptop 2021-03-08 22:02:17 +0000 1 1 4 Plasma plasmashell general 5.8.5 Fedora RPMs Linux RESOLVED DUPLICATE 373885 drkonqi NOR crash 1.0 0 constantine.karnacevych kde bshah justin.zobel kde nate notmart plasma-bugs-null 0 oldest_to_newest 1657561 0 constantine.karnacevych 2017-01-30 12:51:01 +0000 Application: plasmashell (5.8.5) Qt Version: 5.7.1 Frameworks Version: 5.29.0 Operating System: Linux 4.9.5-200.fc25.x86_64 x86_64 Distribution (Platform): Fedora RPMs -- Information about the crash: I have 2 FullHD screens attached when docked on HP ElitBook 8460p 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 0x7f0c4d98a940 (LWP 3874))] Thread 8 (Thread 0x7f0b92da9700 (LWP 4545)): #0 0x00007f0c545a6814 in g_mutex_unlock () at /lib64/libglib-2.0.so.0 #1 0x00007f0c5456068c in g_main_context_prepare () at /lib64/libglib-2.0.so.0 #2 0x00007f0c5456107b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #3 0x00007f0c5456126c in g_main_context_iteration () at /lib64/libglib-2.0.so.0 #4 0x00007f0c5c5ca73b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #5 0x00007f0c5c57b73a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #6 0x00007f0c5c3d85f3 in QThread::exec() () at /lib64/libQt5Core.so.5 #7 0x00007f0b946792c7 in KCupsConnection::run() () at /lib64/libkcupslib.so #8 0x00007f0c5c3dc9da in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #9 0x00007f0c5ab196ca in start_thread () at /lib64/libpthread.so.0 #10 0x00007f0c5b7cff7f in clone () at /lib64/libc.so.6 Thread 7 (Thread 0x7f0ba62d2700 (LWP 4521)): #0 0x00007f0c5b7bfbed in read () at /lib64/libc.so.6 #1 0x00007f0c545a5450 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0 #2 0x00007f0c54560c60 in g_main_context_check () at /lib64/libglib-2.0.so.0 #3 0x00007f0c545610f4 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #4 0x00007f0c5456126c in g_main_context_iteration () at /lib64/libglib-2.0.so.0 #5 0x00007f0c5c5ca73b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #6 0x00007f0c5c57b73a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #7 0x00007f0c5c3d85f3 in QThread::exec() () at /lib64/libQt5Core.so.5 #8 0x00007f0c5ffd28b6 in QQuickPixmapReader::run() () at /lib64/libQt5Quick.so.5 #9 0x00007f0c5c3dc9da in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #10 0x00007f0c5ab196ca in start_thread () at /lib64/libpthread.so.0 #11 0x00007f0c5b7cff7f in clone () at /lib64/libc.so.6 Thread 6 (Thread 0x7f0c38ceb700 (LWP 4477)): #0 0x00007f0c5ab1f460 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0 #1 0x00007f0c61e842f4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5 #2 0x00007f0c61e84339 in () at /lib64/libQt5Script.so.5 #3 0x00007f0c5ab196ca in start_thread () at /lib64/libpthread.so.0 #4 0x00007f0c5b7cff7f in clone () at /lib64/libc.so.6 Thread 5 (Thread 0x7f0c3ab81700 (LWP 4266)): #0 0x00007f0c545a6814 in g_mutex_unlock () at /lib64/libglib-2.0.so.0 #1 0x00007f0c5456068c in g_main_context_prepare () at /lib64/libglib-2.0.so.0 #2 0x00007f0c5456107b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #3 0x00007f0c5456126c in g_main_context_iteration () at /lib64/libglib-2.0.so.0 #4 0x00007f0c5c5ca73b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #5 0x00007f0c5c57b73a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #6 0x00007f0c5c3d85f3 in QThread::exec() () at /lib64/libQt5Core.so.5 #7 0x00007f0c5f6494e5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5 #8 0x00007f0c5c3dc9da in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #9 0x00007f0c5ab196ca in start_thread () at /lib64/libpthread.so.0 #10 0x00007f0c5b7cff7f in clone () at /lib64/libc.so.6 Thread 4 (Thread 0x7f0c3bfff700 (LWP 3976)): #0 0x00007f0c545a6814 in g_mutex_unlock () at /lib64/libglib-2.0.so.0 #1 0x00007f0c54560d1b in g_main_context_dispatch () at /lib64/libglib-2.0.so.0 #2 0x00007f0c545611c0 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #3 0x00007f0c5456126c in g_main_context_iteration () at /lib64/libglib-2.0.so.0 #4 0x00007f0c5c5ca73b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #5 0x00007f0c5c57b73a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #6 0x00007f0c5c3d85f3 in QThread::exec() () at /lib64/libQt5Core.so.5 #7 0x00007f0c5f6494e5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5 #8 0x00007f0c5c3dc9da in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #9 0x00007f0c5ab196ca in start_thread () at /lib64/libpthread.so.0 #10 0x00007f0c5b7cff7f in clone () at /lib64/libc.so.6 Thread 3 (Thread 0x7f0c41ead700 (LWP 3958)): #0 0x00007f0c545a67f9 in g_mutex_lock () at /lib64/libglib-2.0.so.0 #1 0x00007f0c5456113b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #2 0x00007f0c5456126c in g_main_context_iteration () at /lib64/libglib-2.0.so.0 #3 0x00007f0c5c5ca73b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #4 0x00007f0c5c57b73a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #5 0x00007f0c5c3d85f3 in QThread::exec() () at /lib64/libQt5Core.so.5 #6 0x00007f0c5cc78739 in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5 #7 0x00007f0c5c3dc9da in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #8 0x00007f0c5ab196ca in start_thread () at /lib64/libpthread.so.0 #9 0x00007f0c5b7cff7f in clone () at /lib64/libc.so.6 Thread 2 (Thread 0x7f0c4349c700 (LWP 3953)): #0 0x00007f0c5b7c401d in poll () at /lib64/libc.so.6 #1 0x00007f0c6078fd10 in _xcb_conn_wait () at /lib64/libxcb.so.1 #2 0x00007f0c60791aa9 in xcb_wait_for_event () at /lib64/libxcb.so.1 #3 0x00007f0c46cf1d69 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5 #4 0x00007f0c5c3dc9da in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #5 0x00007f0c5ab196ca in start_thread () at /lib64/libpthread.so.0 #6 0x00007f0c5b7cff7f in clone () at /lib64/libc.so.6 Thread 1 (Thread 0x7f0c4d98a940 (LWP 3874)): [KCrash Handler] #6 0x00007f0c604fe234 in Plasma::Applet::destroyed() const () at /lib64/libKF5Plasma.so.5 #7 0x0000559d303e7400 in ShellCorona::createContainmentForActivity(QString const&, int) () #8 0x0000559d303e7764 in ShellCorona::addOutput(QScreen*) () #9 0x00007f0c5c5a3ae6 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5 #10 0x00007f0c5c8a9672 in QGuiApplication::screenAdded(QScreen*) () at /lib64/libQt5Gui.so.5 #11 0x00007f0c46cf199d in QXcbConnection::createScreen(QXcbVirtualDesktop*, xcb_randr_output_change_t const&, xcb_randr_get_output_info_reply_t*) () at /lib64/libQt5XcbQpa.so.5 #12 0x00007f0c46cf3447 in QXcbConnection::updateScreens(xcb_randr_notify_event_t const*) () at /lib64/libQt5XcbQpa.so.5 #13 0x00007f0c46cf3da3 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /lib64/libQt5XcbQpa.so.5 #14 0x00007f0c46cf4225 in QXcbConnection::processXcbEvents() () at /lib64/libQt5XcbQpa.so.5 #15 0x00007f0c5c5a4879 in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5 #16 0x00007f0c5ce48ecc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5 #17 0x00007f0c5ce50671 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5 #18 0x00007f0c5c57c7aa in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5 #19 0x00007f0c5c57ee90 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5 #20 0x00007f0c5c5ca6a3 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5 #21 0x00007f0c54560e42 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0 #22 0x00007f0c545611c0 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #23 0x00007f0c5456126c in g_main_context_iteration () at /lib64/libglib-2.0.so.0 #24 0x00007f0c5c5ca71f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #25 0x00007f0c5c57b73a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #26 0x00007f0c5c58323c in QCoreApplication::exec() () at /lib64/libQt5Core.so.5 #27 0x0000559d303c5452 in main () Reported using DrKonqi 1658009 1 kde 2017-02-01 15:53:58 +0000 Seems m_desktopContainments contains a junk/a deleted containment, offending code: if (m_desktopContainments.contains(activity)) { for (Plasma::Containment *cont : m_desktopContainments.value(activity)) { if (!cont->destroyed() && cont->screen() == screenNum && cont->activity() == activity) { return cont; } } } 1666765 2 notmart 2017-03-17 14:30:13 +0000 (In reply to Kai Uwe Broulik from comment #1) > Seems m_desktopContainments contains a junk/a deleted containment, offending > code: hmm, weird, in theory desktop containments should never be deleted when a screen gets removed, the containment* should stay there. the only moment they should be deleted should be activity removal, which there obviously isn't the case as it was iterating trough containments of current activity 1976570 3 justin.zobel 2020-11-19 04:40:30 +0000 Marco/Kai is this code still present in 5.20.2? 1998163 4 nate 2021-01-26 23:10:46 +0000 Still present; we are still getting duplicates (incoming). 1998164 5 nate 2021-01-26 23:11:35 +0000 Forward-duping to Bug 431726 since that one has debug symbols. *** This bug has been marked as a duplicate of bug 431726 *** 1998168 6 nate 2021-01-26 23:15:49 +0000 *** This bug has been marked as a duplicate of bug 421895 *** 2010135 7 nate 2021-03-08 22:02:17 +0000 *** This bug has been marked as a duplicate of bug 373885 ***