[kde] [Bug 348779] New: KWin crashed when cycling through windows

Sat Jun 6 09:10:04 BST 2015

https://bugs.kde.org/show_bug.cgi?id=348779

            Bug ID: 348779
           Summary: KWin crashed when cycling through windows
           Product: kde
           Version: unspecified
          Platform: unspecified
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: devurandom at gmx.net

Application: kwin_x11 (5.3.1)

Qt Version: 5.4.1
Operating System: Linux 4.0.4-gentoo x86_64
Distribution: "Gentoo Base System release 2.2"

-- Information about the crash:
- What I was doing when the application crashed:

When I pressed Alt+Tab to cycle through windows, KWin crashed.

This also happened earlier, when I pressed RWin+. (Dot), before I mapped RWin
to the compose key. (I have no idea what action RWin+. triggers usually, since
I was expecting RWin to be configured to be the compose key, as it was in my
KDE4 config, which apparently was not migrated.)

The crash can be reproduced sometimes.

-- Backtrace:
Application: KWin (kwin_x11), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f595ebd4800 (LWP 14275))]

Thread 4 (Thread 0x7f5953fff700 (LWP 14280)):
#0  0x000000319ac0cbf8 in pthread_cond_timedwait () from /lib64/libpthread.so.0
#1  0x0000003c678a6258 in wait_relative (time=30000, this=0x793f40) at
thread/qwaitcondition_unix.cpp:118
#2  wait (time=30000, this=0x793f40) at thread/qwaitcondition_unix.cpp:126
#3  QWaitCondition::wait (this=this at entry=0x74a980, mutex=mutex at entry=0x793ce0,
time=30000) at thread/qwaitcondition_unix.cpp:200
#4  0x0000003c678a22c4 in QThreadPoolThread::run (this=0x74a970) at
thread/qthreadpool.cpp:127
#5  0x0000003c678a5182 in QThreadPrivate::start (arg=0x74a970) at
thread/qthread_unix.cpp:337
#6  0x000000319ac072f6 in start_thread () from /lib64/libpthread.so.0
#7  0x000000319a4eabdd in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f59537fe700 (LWP 14281)):
#0  0x00007ffd065f0a7e in clock_gettime ()
#1  0x000000319a4f7a12 in clock_gettime () from /lib64/libc.so.6
#2  0x0000003c6795d286 in qt_clock_gettime (ts=0x7f59537fdc40, clock=<optimized
out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at
tools/qelapsedtimer_unix.cpp:161
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:170
#5  0x0000003c67aee169 in QTimerInfoList::updateCurrentTime
(this=this at entry=0x7f5944001118) at kernel/qtimerinfo_unix.cpp:84
#6  0x0000003c67aee6d5 in QTimerInfoList::timerWait
(this=this at entry=0x7f5944001118, tm=...) at kernel/qtimerinfo_unix.cpp:379
#7  0x0000003c67aedd52 in QEventDispatcherUNIX::processEvents
(this=0x7f59440008c0, flags=...) at kernel/qeventdispatcher_unix.cpp:594
#8  0x0000003c67a95b02 in QEventLoop::exec (this=this at entry=0x7f59537fdda0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#9  0x0000003c678a021e in QThread::exec (this=this at entry=0x8e3520) at
thread/qthread.cpp:503
#10 0x0000003c6a4cf765 in QQmlThreadPrivate::run (this=0x8e3520) at
qml/ftw/qqmlthread.cpp:141
#11 0x0000003c678a5182 in QThreadPrivate::start (arg=0x8e3520) at
thread/qthread_unix.cpp:337
#12 0x000000319ac072f6 in start_thread () from /lib64/libpthread.so.0
#13 0x000000319a4eabdd in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f595b23c700 (LWP 14283)):
#0  0x000000319ac0c84f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f595ef975c4 in ?? () from /usr/lib64/libQt5Script.so.5
#2  0x00007f595ef97609 in ?? () from /usr/lib64/libQt5Script.so.5
#3  0x000000319ac072f6 in start_thread () from /lib64/libpthread.so.0
#4  0x000000319a4eabdd in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f595ebd4800 (LWP 14275)):
[KCrash Handler]
#5  0x000000319a433a27 in raise () from /lib64/libc.so.6
#6  0x000000319a434d39 in abort () from /lib64/libc.so.6
#7  0x0000003c67891f3e in qt_message_fatal (context=..., message=...) at
global/qlogging.cpp:1415
#8  QMessageLogger::fatal (this=this at entry=0x7ffd06431550,
msg=msg at entry=0x7f595e6c69d5 "Could not initialize OpenGL") at
global/qlogging.cpp:636
#9  0x00007f595e67777a in QXcbWindow::create (this=0x8c1a80) at
qxcbwindow.cpp:378
#10 0x00007f595e663ee4 in QXcbIntegration::createPlatformWindow
(this=<optimized out>, window=0x86cfe0) at qxcbintegration.cpp:194
#11 0x0000003c682eb2a6 in QWindowPrivate::create (this=0x8a4060,
recursive=recursive at entry=false) at kernel/qwindow.cpp:395
#12 0x0000003c682eb47b in QWindow::create (this=this at entry=0x86cfe0) at
kernel/qwindow.cpp:539
#13 0x0000003c682eb628 in QWindow::winId (this=0x86cfe0) at
kernel/qwindow.cpp:558
#14 0x00007f595d510486 in PlasmaQuick::Dialog::event(QEvent*) () from
/usr/lib64/libKF5PlasmaQuick.so.5
#15 0x0000003c68d5bb0c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib64/libQt5Widgets.so.5
#16 0x0000003c68d60f88 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#17 0x0000003c67a9829b in QCoreApplication::notifyInternal
(this=0x7ffd06432d80, receiver=receiver at entry=0x86cfe0,
event=event at entry=0x7ffd06431a50) at kernel/qcoreapplication.cpp:935
#18 0x0000003c682ee1ed in sendEvent (event=0x7ffd06431a50, receiver=0x86cfe0)
at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#19 QWindow::setIcon (this=0x86cfe0, icon=...) at kernel/qwindow.cpp:850
#20 0x00007f595d50c8c3 in PlasmaQuick::Dialog::Dialog(QQuickItem*) () from
/usr/lib64/libKF5PlasmaQuick.so.5
#21 0x00007f595d7ab140 in ?? () from
/usr/lib64/qt5/qml/org/kde/plasma/core/libcorebindingsplugin.so
#22 0x0000003c6a463feb in QQmlType::create (this=this at entry=0x7f594404b470) at
qml/qqmlmetatype.cpp:713
#23 0x0000003c6a4ccf33 in QQmlObjectCreator::createInstance
(this=this at entry=0x812c20, index=2, parent=0x846300,
isContextObject=isContextObject at entry=false) at qml/qqmlobjectcreator.cpp:1061
#24 0x0000003c6a4ca3ad in QQmlObjectCreator::setPropertyBinding
(this=this at entry=0x812c20, property=property at entry=0x7f594415bfc8,
binding=binding at entry=0x7f594410d5f8) at qml/qqmlobjectcreator.cpp:774
#25 0x0000003c6a4cb22e in QQmlObjectCreator::setupBindings
(this=this at entry=0x812c20, bindingsToSkip=...) at qml/qqmlobjectcreator.cpp:733
#26 0x0000003c6a4cbbad in QQmlObjectCreator::populateInstance
(this=this at entry=0x812c20, index=0, instance=0x0, instance at entry=0x846300,
bindingTarget=0x0, bindingTarget at entry=0x846300,
valueTypeProperty=valueTypeProperty at entry=0x0, bindingsToSkip=...) at
qml/qqmlobjectcreator.cpp:1348
#27 0x0000003c6a4cc933 in QQmlObjectCreator::createInstance
(this=this at entry=0x812c20, index=index at entry=0, parent=parent at entry=0x0,
isContextObject=isContextObject at entry=true) at qml/qqmlobjectcreator.cpp:1184
#28 0x0000003c6a4cd67c in QQmlObjectCreator::create (this=0x812c20,
subComponentIndex=-1, parent=parent at entry=0x0, interrupt=interrupt at entry=0x0)
at qml/qqmlobjectcreator.cpp:222
#29 0x0000003c6a44ed87 in QQmlComponentPrivate::beginCreate (this=0x81d7f0,
context=0x86bcb0) at qml/qqmlcomponent.cpp:880
#30 0x0000003c6a44f1fd in beginCreate (publicContext=0x7c70d0, this=0x8b87e0)
at qml/qqmlcomponent.cpp:829
#31 QQmlComponent::create (this=0x8b87e0, context=0x7c70d0) at
qml/qqmlcomponent.cpp:789
#32 0x000000393e99e752 in ?? () from /usr/lib64/libkwin.so.5
#33 0x000000393e99fb8c in ?? () from /usr/lib64/libkwin.so.5
#34 0x000000393e99fe31 in ?? () from /usr/lib64/libkwin.so.5
#35 0x000000393e9c48b5 in ?? () from /usr/lib64/libkwin.so.5
#36 0x0000003c67ac8145 in QMetaObject::activate (sender=sender at entry=0x700958,
signalOffset=<optimized out>,
local_signal_index=local_signal_index at entry=32765, argv=0x0,
argv at entry=0x7ffd06432d80) at kernel/qobject.cpp:3716
#37 0x0000003c67ac88df in QMetaObject::activate (sender=sender at entry=0x700958,
m=m at entry=0x3c67cc9b80 <QTimer::staticMetaObject>, local_signal_index=32765,
local_signal_index at entry=0, argv=0x7ffd06432d80, argv at entry=0x0) at
kernel/qobject.cpp:3582
#38 0x0000003c67b47f40 in QTimer::timeout (this=this at entry=0x700958) at
.moc/moc_qtimer.cpp:192
#39 0x0000003c67ad631a in QTimer::timerEvent (this=0x700958, e=<optimized out>)
at kernel/qtimer.cpp:247
#40 0x0000003c67ac9387 in QObject::event (this=0x700958, e=<optimized out>) at
kernel/qobject.cpp:1267
#41 0x0000003c68d5bb0c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib64/libQt5Widgets.so.5
#42 0x0000003c68d60f88 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#43 0x0000003c67a9829b in QCoreApplication::notifyInternal
(this=0x7ffd06432d80, receiver=0x700958, event=event at entry=0x7ffd06432b30) at
kernel/qcoreapplication.cpp:935
#44 0x0000003c67aef54d in sendEvent (event=0x7ffd06432b30, receiver=<optimized
out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#45 QTimerInfoList::activateTimers (this=0x6d44c8) at
kernel/qtimerinfo_unix.cpp:635
#46 0x0000003c67aed4a0 in QEventDispatcherUNIX::activateTimers
(this=this at entry=0x6d29d0) at kernel/qeventdispatcher_unix.cpp:549
#47 0x0000003c67aedd73 in QEventDispatcherUNIX::processEvents (this=0x6d29d0,
flags=flags at entry=...) at kernel/qeventdispatcher_unix.cpp:611
#48 0x00007f595e6b9215 in QUnixEventDispatcherQPA::processEvents
(this=<optimized out>, flags=...) at
eventdispatchers/qunixeventdispatcher.cpp:62
#49 0x0000003c67a95b02 in QEventLoop::exec (this=this at entry=0x7ffd06432ca0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#50 0x0000003c67a9d714 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1188
#51 0x000000393fe053bd in kdemain () from /usr/lib64/libkdeinit5_kwin_x11.so
#52 0x000000319a420050 in __libc_start_main () from /lib64/libc.so.6
#53 0x000000000040083e in _start ()

Reported using DrKonqi

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