https://bugs.kde.org/show_bug.cgi?id=389543
Bug ID: 389543 Summary: kwin / compositor crash when alt-tabbing Product: kwin Version: 5.11.5 Platform: Ubuntu Packages OS: Linux Status: UNCONFIRMED Keywords: drkonqi Severity: crash Priority: NOR Component: general Assignee: kwin-bugs-n...@kde.org Reporter: bastian.salm...@gmail.com Target Milestone: --- Application: kwin_x11 (5.11.5) Qt Version: 5.9.1 Frameworks Version: 5.41.0 Operating System: Linux 4.13.0-32-generic x86_64 Distribution: Ubuntu 17.10 -- Information about the crash: - What I was doing when the application crashed: browsing in google chrome, and hit alt-tab to switch to another application. The crash can be reproduced sometimes. -- Backtrace: Application: KWin (kwin_x11), signal: Segmentation fault Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0x7f1b8596b940 (LWP 1412))] Thread 5 (Thread 0x7f1b5292e700 (LWP 17957)): #0 0x00007f1b8291ab25 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #1 0x00007f1b828c2e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007f1b826e23ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007f1b826e729d in () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007f1b7e3017fc in start_thread (arg=0x7f1b5292e700) at pthread_create.c:465 #5 0x00007f1b85304b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 4 (Thread 0x7f1b535ef700 (LWP 1565)): #0 0x00007f1b7e308072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f1b81b5afb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 #1 0x00007f1b7e308072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f1b81b5af68, cond=0x7f1b81b5af90) at pthread_cond_wait.c:502 #2 0x00007f1b7e308072 in __pthread_cond_wait (cond=0x7f1b81b5af90, mutex=0x7f1b81b5af68) at pthread_cond_wait.c:655 #3 0x00007f1b81866bd4 in () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5 #4 0x00007f1b81866c19 in () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5 #5 0x00007f1b7e3017fc in start_thread (arg=0x7f1b535ef700) at pthread_create.c:465 #6 0x00007f1b85304b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 3 (Thread 0x7f1b61b01700 (LWP 1523)): #0 0x00007f1b852f8a4b in __GI_ppoll (fds=0x7f1b58000d38, nfds=1, timeout=<optimized out>, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39 #1 0x00007f1b82919151 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007f1b8291a86e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007f1b828c2e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007f1b826e23ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007f1b7ce09f45 in () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #6 0x00007f1b826e729d in () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007f1b7e3017fc in start_thread (arg=0x7f1b61b01700) at pthread_create.c:465 #8 0x00007f1b85304b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 2 (Thread 0x7f1b63b68700 (LWP 1427)): #0 0x00007f1b8291a7b5 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #1 0x00007f1b828c2e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007f1b826e23ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007f1b7bfcae45 in () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5 #4 0x00007f1b826e729d in () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007f1b7e3017fc in start_thread (arg=0x7f1b63b68700) at pthread_create.c:465 #6 0x00007f1b85304b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 1 (Thread 0x7f1b8596b940 (LWP 1412)): [KCrash Handler] #6 0x00007f1b74794bd0 in () at /usr/lib/nvidia-384/libnvidia-glcore.so.384.111 #7 0x00007f1b7485b063 in () at /usr/lib/nvidia-384/libnvidia-glcore.so.384.111 #8 0x00007f1b7485f864 in () at /usr/lib/nvidia-384/libnvidia-glcore.so.384.111 #9 0x00007f1b74868a84 in () at /usr/lib/nvidia-384/libnvidia-glcore.so.384.111 #10 0x00007f1b74427a5e in () at /usr/lib/nvidia-384/libnvidia-glcore.so.384.111 #11 0x00007f1b7d4b231f in QSGBatchRenderer::Renderer::renderMergedBatch(QSGBatchRenderer::Batch const*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #12 0x00007f1b7d4b3555 in QSGBatchRenderer::Renderer::renderBatches() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #13 0x00007f1b7d4b8cac in QSGBatchRenderer::Renderer::render() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #14 0x00007f1b7d4a966d in QSGRenderer::renderScene(QSGBindable const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #15 0x00007f1b7d4a9b2b in QSGRenderer::renderScene(unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #16 0x00007f1b7d4e3f50 in QSGDefaultRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #17 0x00007f1b7d5409b8 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #18 0x00007f1b7d4d6399 in () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #19 0x00007f1b7d54ad66 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #20 0x00007f1b51297be3 in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5 #21 0x00007f1b8363f46c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #22 0x00007f1b83646d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #23 0x00007f1b828c4de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #24 0x00007f1b82e8fb01 in QWindowPrivate::deliverUpdateRequest() () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #25 0x00007f1b82e90019 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #26 0x00007f1b7d54ad05 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #27 0x00007f1b51297be3 in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5 #28 0x00007f1b8363f46c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #29 0x00007f1b83646d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #30 0x00007f1b828c4de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #31 0x00007f1b8291c91e in QTimerInfoList::activateTimers() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #32 0x00007f1b8291aad2 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #33 0x00007f1b6b18d9ad in () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #34 0x00007f1b828c2e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #35 0x00007f1b828cbda4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #36 0x00007f1b855d8db6 in kdemain () at /usr/lib/x86_64-linux-gnu/libkdeinit5_kwin_x11.so #37 0x00007f1b852111c1 in __libc_start_main (main=0x55b6501d87b0, argc=1, argv=0x7ffdc595f668, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffdc595f658) at ../csu/libc-start.c:308 #38 0x000055b6501d87ea in _start () Reported using DrKonqi -- You are receiving this mail because: You are watching all bug changes.