https://bugs.kde.org/show_bug.cgi?id=372114
--- Comment #4 from Martin Gräßlin <mgraess...@kde.org> ---
Better backtrace from duplicate:
Application: kwin_x11 (5.8.4)
Qt Version: 5.7.0
Frameworks Version: 5.27.0
Operating System: Linux 4.8.11-300.fc25.x86_64 x86_64
Distribution: "Fedora release 25 (Twenty Five)"
-- Information about the crash:
- What I was doing when the application crashed:
I simply logged in from sddm after a reboot and kwin crashed and the abrt
dialog appeared. kwin restarted by the time I processed this bug report.
-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fccc4cb1940 (LWP 1082))]
Thread 7 (Thread 0x7fcca5245700 (LWP 1339)):
#0 0x00007fccd7e7c460 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1 0x00007fccdd6c2bd4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from
/lib64/libQt5Script.so.5
#2 0x00007fccdd6c2c19 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*)
() from /lib64/libQt5Script.so.5
#3 0x00007fccd7e766ca in start_thread () from /lib64/libpthread.so.0
#4 0x00007fccd5054f6f in clone () from /lib64/libc.so.6
Thread 6 (Thread 0x7fcca6388700 (LWP 1246)):
#0 0x00007fccd7e7c460 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1 0x00007fcca713aad3 in radeon_drm_cs_emit_ioctl () from
/usr/lib64/dri/r600_dri.so
#2 0x00007fcca713a217 in impl_thrd_routine () from /usr/lib64/dri/r600_dri.so
#3 0x00007fccd7e766ca in start_thread () from /lib64/libpthread.so.0
#4 0x00007fccd5054f6f in clone () from /lib64/libc.so.6
Thread 5 (Thread 0x7fcca7fff700 (LWP 1239)):
[KCrash Handler]
#6 0x00007fccd5da485f in QLockFilePrivate::tryLock_sys() () from
/lib64/libQt5Core.so.5
#7 0x00007fccd5d51a6d in QLockFile::tryLock(int) () from
/lib64/libQt5Core.so.5
#8 0x00007fccda841439 in KConfigIniBackend::lock() () from
/lib64/libKF5ConfigCore.so.5
#9 0x00007fccda82b0e0 in KConfig::sync() () from /lib64/libKF5ConfigCore.so.5
#10 0x00007fccb7355ea5 in
QtPrivate::QFunctorSlotObject<KWin::X11StandalonePlatform::createOpenGLSafePoint(KWin::Platform::OpenGLSafePoint)::{lambda()#1},
0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*,
void**, bool*) () from
/usr/lib64/qt5/plugins/org.kde.kwin.platforms/KWinX11Platform.so
#11 0x00007fccd5e28326 in QMetaObject::activate(QObject*, int, int, void**) ()
from /lib64/libQt5Core.so.5
#12 0x00007fccd5e344d8 in QTimer::timerEvent(QTimerEvent*) () from
/lib64/libQt5Core.so.5
#13 0x00007fccd5e2908b in QObject::event(QEvent*) () from
/lib64/libQt5Core.so.5
#14 0x00007fccd664996c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQt5Widgets.so.5
#15 0x00007fccd6651111 in QApplication::notify(QObject*, QEvent*) () from
/lib64/libQt5Widgets.so.5
#16 0x00007fccd5e0112a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib64/libQt5Core.so.5
#17 0x00007fccd5e4e38b in QTimerInfoList::activateTimers() () from
/lib64/libQt5Core.so.5
#18 0x00007fccd5e4c710 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#19 0x00007fccd5e000ba in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#20 0x00007fccd5c5d643 in QThread::exec() () from /lib64/libQt5Core.so.5
#21 0x00007fccd5c61a1a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#22 0x00007fccd7e766ca in start_thread () from /lib64/libpthread.so.0
#23 0x00007fccd5054f6f in clone () from /lib64/libc.so.6
Thread 4 (Thread 0x7fccb6210700 (LWP 1220)):
#0 0x00007fccd50490d1 in ppoll () from /lib64/libc.so.6
#1 0x00007fccd5e4b051 in qt_safe_poll(pollfd*, unsigned long, timespec const*)
() from /lib64/libQt5Core.so.5
#2 0x00007fccd5e4c566 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#3 0x00007fccd5e000ba in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#4 0x00007fccd5c5d643 in QThread::exec() () from /lib64/libQt5Core.so.5
#5 0x00007fccdc91a735 in QQmlThreadPrivate::run() () from
/lib64/libQt5Qml.so.5
#6 0x00007fccd5c61a1a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#7 0x00007fccd7e766ca in start_thread () from /lib64/libpthread.so.0
#8 0x00007fccd5054f6f in clone () from /lib64/libc.so.6
Thread 3 (Thread 0x7fccb7d75700 (LWP 1174)):
#0 0x00007fccd50490d1 in ppoll () from /lib64/libc.so.6
#1 0x00007fccd5e4b051 in qt_safe_poll(pollfd*, unsigned long, timespec const*)
() from /lib64/libQt5Core.so.5
#2 0x00007fccd5e4c566 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#3 0x00007fccd5e000ba in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#4 0x00007fccd5c5d643 in QThread::exec() () from /lib64/libQt5Core.so.5
#5 0x00007fccd79727a9 in QDBusConnectionManager::run() () from
/lib64/libQt5DBus.so.5
#6 0x00007fccd5c61a1a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#7 0x00007fccd7e766ca in start_thread () from /lib64/libpthread.so.0
#8 0x00007fccd5054f6f in clone () from /lib64/libc.so.6
Thread 2 (Thread 0x7fccbd44d700 (LWP 1127)):
#0 0x00007fccd504900d in poll () from /lib64/libc.so.6
#1 0x00007fccd7740d10 in _xcb_conn_wait () from /lib64/libxcb.so.1
#2 0x00007fccd7742aa9 in xcb_wait_for_event () from /lib64/libxcb.so.1
#3 0x00007fccbe0fda19 in QXcbEventReader::run() () from
/lib64/libQt5XcbQpa.so.5
#4 0x00007fccd5c61a1a in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#5 0x00007fccd7e766ca in start_thread () from /lib64/libpthread.so.0
#6 0x00007fccd5054f6f in clone () from /lib64/libc.so.6
Thread 1 (Thread 0x7fccc4cb1940 (LWP 1082)):
#0 0x00007fccd7e7c460 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1 0x00007fccd5c6209a in QWaitCondition::wait(QMutex*, unsigned long) () from
/lib64/libQt5Core.so.5
#2 0x00007fccd5c6161e in QThread::wait(unsigned long) () from
/lib64/libQt5Core.so.5
#3 0x00007fccb7355b4e in
KWin::X11StandalonePlatform::createOpenGLSafePoint(KWin::Platform::OpenGLSafePoint)
() from /usr/lib64/qt5/plugins/org.kde.kwin.platforms/KWinX11Platform.so
#4 0x00007fccde0581ed in KWin::Compositor::performCompositing() () from
/lib64/libkwin.so.5
#5 0x00007fccd5e2908b in QObject::event(QEvent*) () from
/lib64/libQt5Core.so.5
#6 0x00007fccd664996c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQt5Widgets.so.5
#7 0x00007fccd6651111 in QApplication::notify(QObject*, QEvent*) () from
/lib64/libQt5Widgets.so.5
#8 0x00007fccd5e0112a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib64/libQt5Core.so.5
#9 0x00007fccd5e4e38b in QTimerInfoList::activateTimers() () from
/lib64/libQt5Core.so.5
#10 0x00007fccd5e4c710 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#11 0x00007fccbe1767ed in
QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /lib64/libQt5XcbQpa.so.5
#12 0x00007fccd5e000ba in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#13 0x00007fccd5e07bac in QCoreApplication::exec() () from
/lib64/libQt5Core.so.5
#14 0x00007fccde3e40b6 in kdemain () from /lib64/libkdeinit5_kwin_x11.so
#15 0x00007fccd4f6d401 in __libc_start_main () from /lib64/libc.so.6
#16 0x000056551891fcca in _start ()
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