Application: plasmashell (5.5.95) Qt Version: 5.5.1 Frameworks Version: 5.20.0 Operating System: Linux 4.1.15-8-default x86_64 Distribution: "openSUSE Leap 42.1 (x86_64)" -- Information about the crash: - What I was doing when the application crashed: Locked my desktop and then accidentally chose the 'New session' option. After that a new login screen was displayed, multimedia stopped (Amarok). Plasma encountered a crash after switching back to locked session and unlocking it. - Unusual behavior I noticed: After switching back to my session of Plasma Amarok resumed playback but it was laggy. After about 7-8 seconds of playing music disappeared for about a second or two. After that music started playing again and then stopped again for a number of times. -- Backtrace: Application: Plazma (plasmashell), signal: Segmentation fault Using host libthread_db library "/lib64/libthread_db.so.1". [Current thread is 1 (Thread 0x7fa18f7ff800 (LWP 1559))] Thread 17 (Thread 0x7fa17877a700 (LWP 1567)): #0 0x00007fa188cf1bbd in poll () at /lib64/libc.so.6 #1 0x00007fa18dc41422 in () at /usr/lib64/libxcb.so.1 #2 0x00007fa18dc4300f in xcb_wait_for_event () at /usr/lib64/libxcb.so.1 #3 0x00007fa17aefd3c9 in () at /usr/lib64/libQt5XcbQpa.so.5 #4 0x00007fa1893ea32f in () at /usr/lib64/libQt5Core.so.5 #5 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #6 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 16 (Thread 0x7fa175728700 (LWP 1586)): #0 0x00007fa188cf1bbd in poll () at /lib64/libc.so.6 #1 0x00007fa1853cee64 in () at /usr/lib64/libglib-2.0.so.0 #2 0x00007fa1853cef7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #3 0x00007fa18961cd8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #4 0x00007fa1895c3d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #5 0x00007fa1893e561a in QThread::exec() () at /usr/lib64/libQt5Core.so.5 #6 0x00007fa18c6f7df8 in () at /usr/lib64/libQt5Qml.so.5 #7 0x00007fa1893ea32f in () at /usr/lib64/libQt5Core.so.5 #8 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #9 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 15 (Thread 0x7fa164d4d700 (LWP 1597)): #0 0x00007fa188cf1bbd in poll () at /lib64/libc.so.6 #1 0x00007fa1853cee64 in () at /usr/lib64/libglib-2.0.so.0 #2 0x00007fa1853cef7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #3 0x00007fa18961cd8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #4 0x00007fa1895c3d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #5 0x00007fa1893e561a in QThread::exec() () at /usr/lib64/libQt5Core.so.5 #6 0x00007fa18c6f7df8 in () at /usr/lib64/libQt5Qml.so.5 #7 0x00007fa1893ea32f in () at /usr/lib64/libQt5Core.so.5 #8 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #9 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 14 (Thread 0x7fa15f253700 (LWP 1605)): #0 0x00007fa188cf1bbd in poll () at /lib64/libc.so.6 #1 0x00007fa1853cee64 in () at /usr/lib64/libglib-2.0.so.0 #2 0x00007fa1853cef7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #3 0x00007fa18961cd8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #4 0x00007fa1895c3d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #5 0x00007fa1893e561a in QThread::exec() () at /usr/lib64/libQt5Core.so.5 #6 0x00007fa18c6f7df8 in () at /usr/lib64/libQt5Qml.so.5 #7 0x00007fa1893ea32f in () at /usr/lib64/libQt5Core.so.5 #8 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #9 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 13 (Thread 0x7fa15d5d3700 (LWP 1638)): #0 0x00007fa1884ff03f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0 #1 0x00007fa18eed986b in () at /usr/lib64/libQt5Script.so.5 #2 0x00007fa18eed9899 in () at /usr/lib64/libQt5Script.so.5 #3 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #4 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 12 (Thread 0x7fa0d69b8700 (LWP 1644)): #0 0x00007fa188cf1bbd in poll () at /lib64/libc.so.6 #1 0x00007fa1853cee64 in () at /usr/lib64/libglib-2.0.so.0 #2 0x00007fa1853cef7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #3 0x00007fa18961cd8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #4 0x00007fa1895c3d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #5 0x00007fa1893e561a in QThread::exec() () at /usr/lib64/libQt5Core.so.5 #6 0x00007fa18d293282 in () at /usr/lib64/libQt5Quick.so.5 #7 0x00007fa1893ea32f in () at /usr/lib64/libQt5Core.so.5 #8 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #9 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 11 (Thread 0x7fa0d58ec700 (LWP 1645)): #0 0x00007fa1884ff03f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0 #1 0x00007fa1893eb34b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5 #2 0x00007fa18d30625b in () at /usr/lib64/libQt5Quick.so.5 #3 0x00007fa18d3066f3 in () at /usr/lib64/libQt5Quick.so.5 #4 0x00007fa1893ea32f in () at /usr/lib64/libQt5Core.so.5 #5 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #6 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 10 (Thread 0x7fa0c46ed700 (LWP 1846)): #0 0x00007fa185410d14 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0 #1 0x00007fa1853cee0e in () at /usr/lib64/libglib-2.0.so.0 #2 0x00007fa1853cef7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #3 0x00007fa18961cd8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #4 0x00007fa1895c3d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #5 0x00007fa1893e561a in QThread::exec() () at /usr/lib64/libQt5Core.so.5 #6 0x00007fa0c5d41cf7 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so #7 0x00007fa1893ea32f in () at /usr/lib64/libQt5Core.so.5 #8 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #9 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 9 (Thread 0x7fa0c1709700 (LWP 1872)): #0 0x00007fa185410d14 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0 #1 0x00007fa1853cdf20 in g_main_context_acquire () at /usr/lib64/libglib-2.0.so.0 #2 0x00007fa1853ced25 in () at /usr/lib64/libglib-2.0.so.0 #3 0x00007fa1853cef7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #4 0x00007fa18961cd8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #5 0x00007fa1895c3d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #6 0x00007fa1893e561a in QThread::exec() () at /usr/lib64/libQt5Core.so.5 #7 0x00007fa0c1d6dc85 in () at /usr/lib64/qt5/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so #8 0x00007fa1893ea32f in () at /usr/lib64/libQt5Core.so.5 #9 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #10 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 8 (Thread 0x7fa0c0f08700 (LWP 1873)): #0 0x00007fa188cf1bbd in poll () at /lib64/libc.so.6 #1 0x00007fa1853cee64 in () at /usr/lib64/libglib-2.0.so.0 #2 0x00007fa1853cef7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #3 0x00007fa18961cd8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #4 0x00007fa1895c3d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #5 0x00007fa1893e561a in QThread::exec() () at /usr/lib64/libQt5Core.so.5 #6 0x00007fa1893ea32f in () at /usr/lib64/libQt5Core.so.5 #7 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #8 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 7 (Thread 0x7fa0b7b6c700 (LWP 1883)): #0 0x00007fa1884ff03f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0 #1 0x00007fa1893eb34b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5 #2 0x00007fa18d30625b in () at /usr/lib64/libQt5Quick.so.5 #3 0x00007fa18d3066f3 in () at /usr/lib64/libQt5Quick.so.5 #4 0x00007fa1893ea32f in () at /usr/lib64/libQt5Core.so.5 #5 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #6 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 6 (Thread 0x7fa0b7218700 (LWP 1884)): #0 0x00007fa1884ff03f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0 #1 0x00007fa1893eb34b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5 #2 0x00007fa18d30625b in () at /usr/lib64/libQt5Quick.so.5 #3 0x00007fa18d3066f3 in () at /usr/lib64/libQt5Quick.so.5 #4 0x00007fa1893ea32f in () at /usr/lib64/libQt5Core.so.5 #5 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #6 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 5 (Thread 0x7fa0a58bb700 (LWP 2009)): #0 0x00007fa1884ff03f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0 #1 0x00007fa1893eb34b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5 #2 0x00007fa18d30625b in () at /usr/lib64/libQt5Quick.so.5 #3 0x00007fa18d3066f3 in () at /usr/lib64/libQt5Quick.so.5 #4 0x00007fa1893ea32f in () at /usr/lib64/libQt5Core.so.5 #5 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #6 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 4 (Thread 0x7fa09b5ee700 (LWP 2031)): #0 0x00007fa1884ff03f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0 #1 0x00007fa1893eb34b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5 #2 0x00007fa18d30625b in () at /usr/lib64/libQt5Quick.so.5 #3 0x00007fa18d3066f3 in () at /usr/lib64/libQt5Quick.so.5 #4 0x00007fa1893ea32f in () at /usr/lib64/libQt5Core.so.5 #5 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #6 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 3 (Thread 0x7fa0a74dc700 (LWP 2159)): #0 0x00007fa1884ff03f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0 #1 0x00007fa1893eb34b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5 #2 0x00007fa18d30625b in () at /usr/lib64/libQt5Quick.so.5 #3 0x00007fa18d3066f3 in () at /usr/lib64/libQt5Quick.so.5 #4 0x00007fa1893ea32f in () at /usr/lib64/libQt5Core.so.5 #5 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #6 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 2 (Thread 0x7fa09a33a700 (LWP 2195)): #0 0x00007fa1884ff03f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0 #1 0x00007fa1893eb34b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5 #2 0x00007fa18d30625b in () at /usr/lib64/libQt5Quick.so.5 #3 0x00007fa18d3066f3 in () at /usr/lib64/libQt5Quick.so.5 #4 0x00007fa1893ea32f in () at /usr/lib64/libQt5Core.so.5 #5 0x00007fa1884fb0a4 in start_thread () at /lib64/libpthread.so.0 #6 0x00007fa188cf9fed in clone () at /lib64/libc.so.6 Thread 1 (Thread 0x7fa18f7ff800 (LWP 1559)): [KCrash Handler] #6 0x00007fa18a757150 in QWidget::windowHandle() const () at /usr/lib64/libQt5Widgets.so.5 #7 0x00007fa0c69fbe51 in () at /usr/lib64/qt5/qml/org/kde/plasma/private/taskmanager/libtaskmanagerplugin.so #8 0x00007fa189602c48 in () at /usr/lib64/libQt5Core.so.5 #9 0x00007fa1895f68bc in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5 #10 0x00007fa18a72de7c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5 #11 0x00007fa18a732cc8 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5 #12 0x00007fa1895c5e95 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5 #13 0x00007fa18961c77d in QTimerInfoList::activateTimers() () at /usr/lib64/libQt5Core.so.5 #14 0x00007fa18961caa1 in () at /usr/lib64/libQt5Core.so.5 #15 0x00007fa1853cec84 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0 #16 0x00007fa1853ceed8 in () at /usr/lib64/libglib-2.0.so.0 #17 0x00007fa1853cef7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #18 0x00007fa18961cd6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #19 0x00007fa1895c3d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5 #20 0x00007fa1895cb8f6 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5 #21 0x000000000041cea6 in () #22 0x00007fa188c36b05 in __libc_start_main () at /lib64/libc.so.6 #23 0x000000000041d015 in _start () Reported using DrKonqi
Thanks for the report Please install debug symbols for plasma-workspace and if you can reproduce, please post an updated backtrace with new debug symbols.
Extra backtrace will just show it's the lamba in backend.cpp:357
Git commit b7faa415a404ac4715a7fe4eecf23709d7e18de1 by David Edmundson. Committed on 29/03/2016 at 22:04. Pushed by davidedmundson into branch 'Plasma/5.6'. Guard round this delegate getting deleted during menu exec Reviewers: #plasma Subscribers: plasma-devel Projects: #plasma Differential Revision: https://phabricator.kde.org/D1242 M +4 -0 applets/taskmanager/plugin/backend.cpp http://commits.kde.org/plasma-desktop/b7faa415a404ac4715a7fe4eecf23709d7e18de1