Application: kwin_x11 (5.8.2) Qt Version: 5.7.0 Frameworks Version: 5.27.0 Operating System: Linux 4.8.4-1-ARCH x86_64 Distribution (Platform): Archlinux Packages -- Information about the crash: - i just boot my ArchLinux PC as before, while i logined, a window jumped out to tell me it had crashed, this window even had no border. The crash can be reproduced every time. -- Backtrace: Application: KWin (kwin_x11), signal: Segmentation fault Using host libthread_db library "/usr/lib/libthread_db.so.1". [Current thread is 1 (Thread 0x7fd8ea7a8840 (LWP 613))] Thread 5 (Thread 0x7fd8c49a5700 (LWP 670)): #0 0x00007fd8e34ac10f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fd8e67f0ac4 in () at /usr/lib/libQt5Script.so.5 #2 0x00007fd8e67f0b09 in () at /usr/lib/libQt5Script.so.5 #3 0x00007fd8e34a6454 in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007fd8ea2007df in clone () at /usr/lib/libc.so.6 Thread 4 (Thread 0x7fd8c51a6700 (LWP 661)): [KCrash Handler] #6 0x00007fd8e76ff8b9 in QRingBuffer::chop(long long) () at /usr/lib/libQt5Core.so.5 #7 0x00007fd8e7786fc6 in QIODevice::read(char*, long long) () at /usr/lib/libQt5Core.so.5 #8 0x00007fd8e7787647 in QIODevice::readAll() () at /usr/lib/libQt5Core.so.5 #9 0x00007fd8e9df80eb in () at /usr/lib/libkwin.so.5 #10 0x00007fd8e9df94c2 in () at /usr/lib/libkwin.so.5 #11 0x00007fd8e767c01f in () at /usr/lib/libQt5Core.so.5 #12 0x00007fd8e767fd78 in () at /usr/lib/libQt5Core.so.5 #13 0x00007fd8e34a6454 in start_thread () at /usr/lib/libpthread.so.0 #14 0x00007fd8ea2007df in clone () at /usr/lib/libc.so.6 Thread 3 (Thread 0x7fd8ce2f1700 (LWP 623)): #0 0x00007fd8ea1f7551 in ppoll () at /usr/lib/libc.so.6 #1 0x00007fd8e78a9ac9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5 #2 0x00007fd8e78ab3b8 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #3 0x00007fd8e785823a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007fd8e767b0f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #5 0x00007fd8e13cbe55 in () at /usr/lib/libQt5DBus.so.5 #6 0x00007fd8e767fd78 in () at /usr/lib/libQt5Core.so.5 #7 0x00007fd8e34a6454 in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007fd8ea2007df in clone () at /usr/lib/libc.so.6 Thread 2 (Thread 0x7fd8cffa0700 (LWP 622)): #0 0x00007fd8ea1f748d in poll () at /usr/lib/libc.so.6 #1 0x00007fd8e933c8e0 in () at /usr/lib/libxcb.so.1 #2 0x00007fd8e933e679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1 #3 0x00007fd8d0a4c449 in () at /usr/lib/libQt5XcbQpa.so.5 #4 0x00007fd8e767fd78 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fd8e34a6454 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fd8ea2007df in clone () at /usr/lib/libc.so.6 Thread 1 (Thread 0x7fd8ea7a8840 (LWP 613)): #0 0x00007fd8e34ac10f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fd8e7680c2b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007fd8e767b772 in QThreadPoolPrivate::waitForDone(int) () at /usr/lib/libQt5Core.so.5 #3 0x00007fd8e767bb71 in QThreadPool::waitForDone(int) () at /usr/lib/libQt5Core.so.5 #4 0x00007fd8e785b825 in QCoreApplication::~QCoreApplication() () at /usr/lib/libQt5Core.so.5 #5 0x00007fd8e853a881 in QApplication::~QApplication() () at /usr/lib/libQt5Widgets.so.5 #6 0x00007fd8ea4bd934 in () at /usr/lib/libkdeinit5_kwin_x11.so #7 0x00007fd8ea4bf4e5 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so #8 0x00007fd8ea138291 in __libc_start_main () at /usr/lib/libc.so.6 #9 0x000000000040069a in _start () Possible duplicates by query: bug 371397. Reported using DrKonqi
Unfortunately the backtrace is (as always with Arch) lacking debug symbols. We see that it crashes, but not where and why. There is nothing we can do to investigate.
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days, the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please set the bug status as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!