Application: kwin_x11 (5.10.3) Qt Version: 5.9.1 Frameworks Version: 5.36.0 Operating System: Linux 4.11.0-10-generic x86_64 Distribution: Ubuntu Artful Aardvark (development branch) -- Information about the crash: - What I was doing when the application crashed: Logging into Plasma via SDDM after upgrading Qt to 5.9. I can add a link. - Custom settings of the application: Qt5.9 from PPA The crash can be reproduced every time. -- Backtrace: Application: KWin (kwin_x11), signal: Aborted Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0x7fdd4c11e6c0 (LWP 1179))] Thread 5 (Thread 0x7fdd28ab7700 (LWP 1297)): #0 0x00007fdd4bb31251 in __GI_ppoll (fds=0x7fdd20000ac8, nfds=1, timeout=<optimized out>, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39 #1 0x00007fdd4917c471 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007fdd4917db0a in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007fdd491292ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fdd48f52cd3 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fdd43ad1c55 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #6 0x00007fdd48f57a99 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007fdd44db26da in start_thread (arg=0x7fdd28ab7700) at pthread_create.c:456 #8 0x00007fdd4bb3d17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 Thread 4 (Thread 0x7fdd294f9700 (LWP 1291)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x00007fdd48f58936 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007fdd48f53eea in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007fdd48f57a99 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fdd44db26da in start_thread (arg=0x7fdd294f9700) at pthread_create.c:456 #5 0x00007fdd4bb3d17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 Thread 3 (Thread 0x7fdd2b16a700 (LWP 1228)): #0 0x00007fdd48f4ece9 in QMutex::unlock() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #1 0x00007fdd4917d96b in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007fdd491292ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007fdd48f52cd3 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fdd42c9cf25 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5 #5 0x00007fdd48f57a99 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007fdd44db26da in start_thread (arg=0x7fdd2b16a700) at pthread_create.c:456 #7 0x00007fdd4bb3d17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 Thread 2 (Thread 0x7fdd31228700 (LWP 1227)): #0 0x00007fdd4bb3118d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fdd4ac58c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #2 0x00007fdd4ac5a8d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #3 0x00007fdd31ed4f49 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #4 0x00007fdd48f57a99 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fdd44db26da in start_thread (arg=0x7fdd31228700) at pthread_create.c:456 #6 0x00007fdd4bb3d17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 Thread 1 (Thread 0x7fdd4c11e6c0 (LWP 1179)): [KCrash Handler] #6 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:58 #7 0x00007fdd4ba6c37a in __GI_abort () at abort.c:89 #8 0x00007fdd48f3fa57 in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #9 0x00007fdd49154fb5 in QObjectPrivate::QObjectPrivate(int) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #10 0x00007fdd4812238b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5 #11 0x00007fdd48122eaf in QScriptEngine::QScriptEngine(QObject*) () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5 #12 0x00007fdd4b6fc727 in ?? () from /usr/lib/x86_64-linux-gnu/libkwin.so.5 #13 0x00007fdd4b6fd1f2 in KWin::Scripting::loadScript(QString const&, QString const&) () from /usr/lib/x86_64-linux-gnu/libkwin.so.5 #14 0x00007fdd4b70053c in KWin::Scripting::start() () from /usr/lib/x86_64-linux-gnu/libkwin.so.5 #15 0x00007fdd4b778da5 in ?? () from /usr/lib/x86_64-linux-gnu/libkwin.so.5 #16 0x00007fdd49158097 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #17 0x00007fdd49158cf1 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #18 0x00007fdd49e78abc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #19 0x00007fdd49e80351 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #20 0x00007fdd4912b2a0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #21 0x00007fdd4912e06d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #22 0x00007fdd4917d937 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #23 0x00007fdd31f3302d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #24 0x00007fdd491292ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #25 0x00007fdd49132204 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #26 0x00007fdd4be05112 in kdemain () from /usr/lib/x86_64-linux-gnu/libkdeinit5_kwin_x11.so #27 0x00007fdd4ba553f1 in __libc_start_main (main=0x561dc11517f0, argc=3, argv=0x7ffcdc8d18e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffcdc8d18d8) at ../csu/libc-start.c:291 #28 0x0000561dc115182a in _start () Possible duplicates by query: bug 381941, bug 381375, bug 379070, bug 378738, bug 378240. Reported using DrKonqi
Test steps: https://phabricator.kde.org/T6531
Could you please start kwin_x11 from Konsole and add the error output here?
Please install debug symbols and attach a new backtrace.
Yes, please install these packages and try to get another stacktrace: sudo apt install libqt5core5a-dbgsym libqt5widgets5-dbgsym libqt5script5-dbgsym libqt5qml5-dbgsym libqt5gui5-dbgsym kwin-x11-dbgsym kwin-common-dbgsym The Qt packages here are from my PPA, for kwin debug packages you may need to add the Ubuntu debug repository as described here: https://wiki.ubuntu.com/Debug%20Symbol%20Packages#Getting_-dbgsym.ddeb_packages.
(In reply to Christoph Feck from comment #2) > Could you please start kwin_x11 from Konsole and add the error output here? kwin_x11: FATAL ERROR while trying to open display
(In reply to Dmitry Shachnev from comment #4) > Yes, please install these packages and try to get another stacktrace: > > sudo apt install libqt5core5a-dbgsym libqt5widgets5-dbgsym > libqt5script5-dbgsym libqt5qml5-dbgsym libqt5gui5-dbgsym kwin-x11-dbgsym > kwin-common-dbgsym > > The Qt packages here are from my PPA, for kwin debug packages you may need > to add the Ubuntu debug repository as described here: > https://wiki.ubuntu.com/Debug%20Symbol%20Packages#Getting_-dbgsym. > ddeb_packages. E: Unable to locate package libqt5core5a-dbgsym
> E: Unable to locate package libqt5core5a-dbgsym Sorry, I should have mentioned that you need to enable the debug section of the PPA. Please open /etc/apt/sources.list.d/ci-train-ppa-service-ubuntu-2819-artful.list file as root in your favourite editor. There should be a line like this there: deb http://ppa.launchpad.net/ci-train-ppa-service/2819/ubuntu artful main Add a new line after it, replacing main with main/debug, i.e.: deb http://ppa.launchpad.net/ci-train-ppa-service/2819/ubuntu artful main/debug Then run apt update. APT will complain about some missing files in that section, but the -dbgsym packages should be available now.
(In reply to Dmitry Shachnev from comment #7) > > E: Unable to locate package libqt5core5a-dbgsym > > Sorry, I should have mentioned that you need to enable the debug section of > the PPA. Please open > /etc/apt/sources.list.d/ci-train-ppa-service-ubuntu-2819-artful.list file as > root in your favourite editor. There should be a line like this there: > > deb http://ppa.launchpad.net/ci-train-ppa-service/2819/ubuntu artful main > > Add a new line after it, replacing main with main/debug, i.e.: > > deb http://ppa.launchpad.net/ci-train-ppa-service/2819/ubuntu artful > main/debug > > Then run apt update. APT will complain about some missing files in that > section, but the -dbgsym packages should be available now. Strange, but yesterday, before I tried to add the other packages, I routinely sudo apt update && sudo apt full-upgrade -y. As usual, I got a few new packages yesterday, and today, today when I intended to add the debugging symbols via the tty, instead plasma started normally, but I do not know what might have caused the success today. Anyway, today, I could launch krunner to invoke kinfocenter (which reports Plasma 5.10.3, FW 5.36, and Qt 5.9.1). The kicker application launcher works, and I could launch discover, kate, system settings, konsole, konversation, and ksysguard. Since I have rebooted my VM three times, all successfully, I will try to close this bug with resolved, fixed.
Let's mark it properly: INVALID. Please be more careful when reporting issues caused by using unstable packages. This wastes quite some time for us.