https://bugs.kde.org/show_bug.cgi?id=419049
Bug ID: 419049 Summary: KWin crashes seemingly at random Product: kwin Version: 5.18.3 Platform: Archlinux Packages OS: Linux Status: REPORTED Keywords: drkonqi Severity: crash Priority: NOR Component: general Assignee: kwin-bugs-n...@kde.org Reporter: t.krabbe+...@protonmail.com Target Milestone: --- Application: kwin_x11 (5.18.3) Qt Version: 5.14.1 Frameworks Version: 5.68.0 Operating System: Linux 5.5.10-arch1-1 x86_64 Windowing system: X11 Distribution: "Arch Linux" -- Information about the crash: - What I was doing when the application crashed: Firefox was focused. Other than that I don't remember doing anything special. I've been having ominous crashes every now and again, and I *feel* like this particular crash may be related to Firefox in some way, since this particular crash caused Plasma to restart and actually keep all applications open. I believe such a crash has occured before, and Firefox was open then, as well. But I don't remember this accurately enough to be sure. The other crashes I've been experiencing have caused my system to freeze unrecoverably, so I think those are probably caused by something else. Many thanks in advance for looking at this! The crash can be reproduced sometimes. -- Backtrace: Application: KWin (kwin_x11), signal: Segmentation fault Using host libthread_db library "/usr/lib/libthread_db.so.1". [Current thread is 1 (Thread 0x7f7a403490c0 (LWP 4073))] Thread 36 (Thread 0x7f7929891700 (LWP 8945)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 35 (Thread 0x7f793d91a700 (LWP 8235)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 34 (Thread 0x7f79366d3700 (LWP 7385)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a4672bcc4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5 #2 0x00007f7a4672bda2 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #3 0x00007f7a4539d56b in () at /usr/lib/libQt5Quick.so.5 #4 0x00007f7a4539d7fb in () at /usr/lib/libQt5Quick.so.5 #5 0x00007f7a46725fd6 in () at /usr/lib/libQt5Core.so.5 #6 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #7 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 33 (Thread 0x7f792a092700 (LWP 7384)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 32 (Thread 0x7f793511b700 (LWP 6065)): #0 0x00007f7a47fc1bb6 in ppoll () at /usr/lib/libc.so.6 #1 0x00007f7a46956023 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5 #2 0x00007f7a469576ed in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #3 0x00007f7a4690057c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007f7a46724e62 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #5 0x00007f7a45035f89 in () at /usr/lib/libQt5Qml.so.5 #6 0x00007f7a46725fd6 in () at /usr/lib/libQt5Core.so.5 #7 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 31 (Thread 0x7f79d27fc700 (LWP 6064)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 30 (Thread 0x7f7a3dc2c700 (LWP 6007)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 29 (Thread 0x7f793f6f7700 (LWP 5180)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 28 (Thread 0x7f7937fff700 (LWP 5158)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a4672bcc4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5 #2 0x00007f7a4672bda2 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #3 0x00007f7a4539d56b in () at /usr/lib/libQt5Quick.so.5 #4 0x00007f7a4539d7fb in () at /usr/lib/libQt5Quick.so.5 #5 0x00007f7a46725fd6 in () at /usr/lib/libQt5Core.so.5 #6 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #7 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 27 (Thread 0x7f793c8f9700 (LWP 5157)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 26 (Thread 0x7f79400f8700 (LWP 4760)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 25 (Thread 0x7f7a2fbff700 (LWP 4735)): #0 0x00007f7a47fc1bb6 in ppoll () at /usr/lib/libc.so.6 #1 0x00007f7a46956023 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5 #2 0x00007f7a469576ed in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #3 0x00007f7a4690057c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007f7a46724e62 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #5 0x00007f7a45035f89 in () at /usr/lib/libQt5Qml.so.5 #6 0x00007f7a46725fd6 in () at /usr/lib/libQt5Core.so.5 #7 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 24 (Thread 0x7f79d1dfb700 (LWP 4180)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a46222f3c in () at /usr/lib/libQt5Script.so.5 #2 0x00007f7a46222f59 in () at /usr/lib/libQt5Script.so.5 #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 23 (Thread 0x7f79d2ffd700 (LWP 4178)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 22 (Thread 0x7f79d37fe700 (LWP 4176)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 21 (Thread 0x7f79d3fff700 (LWP 4175)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 20 (Thread 0x7f79fcff9700 (LWP 4174)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 19 (Thread 0x7f79fd7fa700 (LWP 4173)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 18 (Thread 0x7f79fdffb700 (LWP 4172)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 17 (Thread 0x7f79fe7fc700 (LWP 4171)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 16 (Thread 0x7f79feffd700 (LWP 4170)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 15 (Thread 0x7f79ff7fe700 (LWP 4169)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 14 (Thread 0x7f79fffff700 (LWP 4168)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 13 (Thread 0x7f7a1c9ad700 (LWP 4167)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 12 (Thread 0x7f7a1d1ae700 (LWP 4166)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 11 (Thread 0x7f7a1d9af700 (LWP 4165)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 10 (Thread 0x7f7a1e1b0700 (LWP 4164)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 9 (Thread 0x7f7a1e9b1700 (LWP 4163)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 8 (Thread 0x7f7a1f1b2700 (LWP 4162)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 7 (Thread 0x7f7a2c9a3700 (LWP 4161)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 6 (Thread 0x7f7a2d1a4700 (LWP 4160)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 5 (Thread 0x7f7a2dae6700 (LWP 4159)): #0 0x00007f7a458f2cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f7a2e64299c in () at /usr/lib/dri/radeonsi_dri.so #2 0x00007f7a2e642598 in () at /usr/lib/dri/radeonsi_dri.so #3 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 4 (Thread 0x7f7a3d190700 (LWP 4129)): #0 0x00007f7a47fc1bb6 in ppoll () at /usr/lib/libc.so.6 #1 0x00007f7a46956023 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5 #2 0x00007f7a469576ed in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #3 0x00007f7a4690057c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007f7a46724e62 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #5 0x00007f7a45035f89 in () at /usr/lib/libQt5Qml.so.5 #6 0x00007f7a46725fd6 in () at /usr/lib/libQt5Core.so.5 #7 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 3 (Thread 0x7f7a3ee95700 (LWP 4108)): #0 0x00007f7a47fc1bb6 in ppoll () at /usr/lib/libc.so.6 #1 0x00007f7a46956023 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5 #2 0x00007f7a469576ed in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #3 0x00007f7a4690057c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007f7a46724e62 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #5 0x00007f7a479fab28 in () at /usr/lib/libQt5DBus.so.5 #6 0x00007f7a46725fd6 in () at /usr/lib/libQt5Core.so.5 #7 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 2 (Thread 0x7f7a3fb9c700 (LWP 4100)): #0 0x00007f7a47fc1abf in poll () at /usr/lib/libc.so.6 #1 0x00007f7a4663e63b in () at /usr/lib/libxcb.so.1 #2 0x00007f7a4664037b in xcb_wait_for_event () at /usr/lib/libxcb.so.1 #3 0x00007f7a3feb9ba1 in () at /usr/lib/libQt5XcbQpa.so.5 #4 0x00007f7a46725fd6 in () at /usr/lib/libQt5Core.so.5 #5 0x00007f7a458ec46f in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007f7a47fcc3d3 in clone () at /usr/lib/libc.so.6 Thread 1 (Thread 0x7f7a403490c0 (LWP 4073)): [KCrash Handler] #6 0x00007f7a456f26b4 in KWin::GLTexture::height() const () at /usr/lib/libkwinglutils.so.12 #7 0x00007f7a456f62a9 in KWin::GLRenderTarget::enable() () at /usr/lib/libkwinglutils.so.12 #8 0x00007f7a456f87df in KWin::GLRenderTarget::popRenderTarget() () at /usr/lib/libkwinglutils.so.12 #9 0x00007f7a46362ae7 in () at /usr/lib/libkwin4_effect_builtins.so.1 #10 0x00007f7a463638a7 in () at /usr/lib/libkwin4_effect_builtins.so.1 #11 0x00007f7a463642ee in () at /usr/lib/libkwin4_effect_builtins.so.1 #12 0x00007f7a47cae350 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5 #13 0x00007f7a47cae212 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5 #14 0x00007f7a47cae1b4 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5 #15 0x00007f7a47cae1b4 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5 #16 0x00007f7a47d3065b in KWin::Scene::paintWindow(KWin::Scene::Window*, int, QRegion, KWin::WindowQuadList) () at /usr/lib/libkwin.so.5 #17 0x00007f7a47d2de8d in KWin::Scene::paintSimpleScreen(int, QRegion) () at /usr/lib/libkwin.so.5 #18 0x00007f7a3d3f2435 in () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so #19 0x00007f7a47d2fc31 in KWin::Scene::finalPaintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5 #20 0x00007f7a47cadfc0 in KWin::EffectsHandlerImpl::paintScreen(int, QRegion const&, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5 #21 0x00007f7a47cadf6b in KWin::EffectsHandlerImpl::paintScreen(int, QRegion const&, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5 #22 0x00007f7a47cadf6b in KWin::EffectsHandlerImpl::paintScreen(int, QRegion const&, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5 #23 0x00007f7a47d2f8d6 in KWin::Scene::paintScreen(int*, QRegion const&, QRegion const&, QRegion*, QRegion*, QMatrix4x4 const&, QRect const&) () at /usr/lib/libkwin.so.5 #24 0x00007f7a3d3fa1cf in KWin::SceneOpenGL::paint(QRegion, QList<KWin::Toplevel*>) () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so #25 0x00007f7a47c73695 in KWin::Compositor::performCompositing() () at /usr/lib/libkwin.so.5 #26 0x00007f7a4692f225 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5 #27 0x00007f7a4739b362 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5 #28 0x00007f7a473a4819 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5 #29 0x00007f7a46901a12 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5 #30 0x00007f7a46959462 in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5 #31 0x00007f7a46957849 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #32 0x00007f7a3febaf7f in () at /usr/lib/libQt5XcbQpa.so.5 #33 0x00007f7a4690057c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #34 0x00007f7a46908586 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5 #35 0x00007f7a4809b379 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so #36 0x00007f7a47ef4023 in __libc_start_main () at /usr/lib/libc.so.6 #37 0x00005629450e405e in _start () [Inferior 1 (process 4073) detached] Possible duplicates by query: bug 279546, bug 180052, bug 179450, bug 179229, bug 176283. 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