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[RESOLVED] KWin Crashing
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theluckyone17
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Joined: 03 Dec 2005
Posts: 48

PostPosted: Thu Jun 22, 2017 4:05 pm    Post subject: [RESOLVED] KWin Crashing Reply with quote

Got one that's flummoxed me... recently upgraded my work laptop, the most notable operation of which was upgrading to GCC 5 using the guide. After which, kwin keeps crashing upon logon. I installed openbox and have a functional desktop environment again, but I'd like to solve the kwin issue. Tried the obvious stuff like renaming the .config directory and trying a fresh new user, but the crash remains. The diagnostic info from kwin:
Code:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff3b6336800 (LWP 342))]

Thread 4 (Thread 0x7ff3975ef700 (LWP 348)):
#0  0x00007ff3afb7f2d8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ff3b3b90528 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007ff3b3b8cf62 in ?? () from /usr/lib64/libQt5Core.so.5
#3  0x00007ff3b3b8fedc in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007ff3afb79384 in start_thread () from /lib64/libpthread.so.0
#5  0x00007ff3b5e414cd in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7ff39daff700 (LWP 347)):
#0  0x00007ff3b5e3a0c3 in select () from /lib64/libc.so.7
#1  0x00007ff3b3d7aa2f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /usr/lib64/libQt5Core.so.5
#2  0x00007ff3b3d7c0de in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /usr/lib64/libQt5Core.so.5
#3  0x00007ff3b3d7c5f2 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007ff3b3d2e24a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007ff3b3b8ba34 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007ff3b6455485 in ?? () from /usr/lib64/libQt5DBus.so.5
#7  0x00007ff3b3b8fedc in ?? () from /usr/lib64/libQt5Core.so.5
#8  0x00007ff3afb79384 in start_thread () from /lib64/libpthread.so.0
#9  0x00007ff3b5e414cd in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7ff39f5c6700 (LWP 345)):
#0  0x00007ff3b5e3842d in poll () from /lib64/libc.so.6
#1  0x00007ff3b4fa8882 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007ff3b4faa66f in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007ff3a0270ce9 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007ff3b3b8fedc in ?? () from /usr/lib64/libQt5Core.so.5
#5  0x00007ff3afb79384 in start_thread () from /lib64/libpthread.so.0
#6  0x00007ff3b5e414cd in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7ff3b6336800 (LWP 342)):
[KCrash Handler]
#6  0x00007ff39c5c6d90 in ?? () from /usr/lib64/qt5/plugins/org.kde.kdecoration2/breezedecoration.so
#7  0x00007ff3b3d37ef9 in QMetaObject::cast(QObject const*) const () from /usr/lib64/libQt5Core.so.5
#8  0x00007ff39c3926b1 in ?? () from /usr/lib64/qt5/plugins/org.kde.kdecoration2/breezedecoration.so
#9  0x00007ff3b26560ef in KDecoration2::DecorationButtonGroup::DecorationButtonGroup(KDecoration2::DecorationButtonGroup::Position, KDecoration2::Decoration*, std::function<KDecoration2::DecorationButton* (KDecoration2::DecorationButtonType, KDecoration2::Decoration*, QObject*)>) () from /usr/lib64/libkdecorations2.so.5
#10 0x00007ff39c399760 in ?? () from /usr/lib64/qt5/plugins/org.kde.kdecoration2/breezedecoration.so
#11 0x00007ff39c39ae59 in ?? () from /usr/lib64/qt5/plugins/org.kde.kdecoration2/breezedecoration.so
#12 0x00007ff3b5a5f101 in ?? () from /usr/lib64/libkwin.so.5
#13 0x00007ff3b5940201 in KWin::Client::createDecoration(QRect const&) () from /usr/lib64/libkwin.so.5
#14 0x00007ff3b5940dfd in KWin::Client::updateDecoration(bool, bool) () from /usr/lib64/libkwin.so.5
#15 0x00007ff3b59a024c in KWin::Client::manage(unsigned int, bool) () from /usr/lib64/libkwin.so.5
#16 0x00007ff3b5923aa4 in KWin::Workspace::createClient(unsigned int, bool) () from /usr/lib64/libkwin.so.5
#17 0x00007ff3b59295ac in KWin::Workspace::init() () from /usr/lib64/libkwin.so.5
#18 0x00007ff3b592a56b in KWin::Workspace::Workspace(QString const&) () from /usr/lib64/libkwin.so.5
#19 0x00007ff3b597e403 in KWin::Application::createWorkspace() () from /usr/lib64/libkwin.so.5
#20 0x00007ff3b60fef1e in ?? () from /usr/lib64/libkdeinit5_kwin_x11.so
#21 0x00007ff3b3d56f9e in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#22 0x00007ff3b60ff279 in ?? () from /usr/lib64/libkdeinit5_kwin_x11.so
#23 0x00007ff3b3d56f9e in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#24 0x00007ff3b4add99b in KSelectionOwner::Private::claimSucceeded() () from /usr/lib64/libKF5WindowSystem.so.5
#25 0x00007ff3b3d57cbb in QObject::event(QEvent*) () from /usr/lib64/libQt5Core.so.6
#26 0x00007ff3b45aecbc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#27 0x00007ff3b45b41ae in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#28 0x00007ff3b3d2f3ea in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#29 0x00007ff3b3d7da93 in QTimerInfoList::activateTimers() () from /usr/lib64/libQt5Core.so.5
#30 0x00007ff3b3d7c5d4 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#31 0x00007ff3a02e517d in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#32 0x00007ff3b3d2e24a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#33 0x00007ff3b3d35d0c in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#34 0x00007ff3b61011f6 in kdemain () from /usr/lib64/libkdeinit5_kwin_x11.so
#35 0x00007ff3b5d796f0 in __libc_start_main () from /lib64/libc.so.6
#36 0x0000000000400719 in _start ()


Thoughts?
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theluckyone17
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Joined: 03 Dec 2005
Posts: 48

PostPosted: Thu Jun 22, 2017 6:47 pm    Post subject: Reply with quote

Resolved.

kde-plasma/breeze had been compiled with the qt4 flag (by default, since I hadn't set the USE flag: I'm running the default/linux/amd64/13.0/desktop/plasma profile). Recompiling it without the qt4 flag resolved the issue.
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asturm
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Joined: 05 Apr 2007
Posts: 6824
Location: Austria

PostPosted: Thu Jun 22, 2017 7:33 pm    Post subject: Reply with quote

I guess that rebuilding breeze (with qt4 flag) would have solved your issues as well. Now you are missing qt4 application integration in Plasma.
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backend.cpp:92:2: warning: #warning TODO - this error message is about as useful as a cooling unit in the arctic
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the_bard
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Joined: 03 Dec 2002
Posts: 59
Location: Albany, NY

PostPosted: Fri Jun 23, 2017 2:28 am    Post subject: Reply with quote

I'll give it a try tomorrow. I believe I had rebuilt breeze with the flag before rebuilding without; I'd rather confirm that before making the claim, though.
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theluckyone17
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Joined: 03 Dec 2005
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PostPosted: Sat Jun 24, 2017 3:22 am    Post subject: Reply with quote

Sure 'nough... that worked. Should have tried that first. Thanks!
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