Description of problem: Application: kwin (4.7.00 (4.7.0)) KDE Platform Version: 4.7.00 (4.7.0) Qt Version: 4.7.3 Operating System: Linux 3.0.0-desktop586-1.mga2 i686 Distribution: "Mageia Cauldron" -- Backtrace: Application: KWin (kwin), signal: Segmentation fault [Current thread is 1 (Thread 0xb22196d0 (LWP 4245))] Thread 2 (Thread 0xb0f8cb70 (LWP 4252)): #0 0xffffe430 in __kernel_vsyscall () #1 0xb626b02c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i686/libpthread.so.0 #2 0xb75f91bd in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i686/libc.so.6 #3 0xb6c58897 in ?? () from /usr/lib/libQtScript.so.4 #4 0xb6c588df in ?? () from /usr/lib/libQtScript.so.4 #5 0xb6266e89 in start_thread () from /lib/i686/libpthread.so.0 #6 0xb75ea4ce in clone () from /lib/i686/libc.so.6 Thread 1 (Thread 0xb22196d0 (LWP 4245)): [KCrash Handler] #7 0x00000000 in ?? () #8 0xb6a4c232 in KWin::GLShader::load(QByteArray const&, QByteArray const&) () from /usr/lib/libkwineffects.so.1 #9 0xb6a4c9ce in KWin::GLShader::loadFromFiles(QString const&, QString const&) () from /usr/lib/libkwineffects.so.1 #10 0xb6a4cd85 in KWin::GLShader::GLShader(QString const&, QString const&) () from /usr/lib/libkwineffects.so.1 #11 0xb6a50236 in KWin::ShaderManager::initShaders() () from /usr/lib/libkwineffects.so.1 #12 0xb6a508fd in KWin::ShaderManager::ShaderManager() () from /usr/lib/libkwineffects.so.1 #13 0xb6a5095e in KWin::ShaderManager::instance() () from /usr/lib/libkwineffects.so.1 #14 0xb775012e in ?? () from /usr/lib/libkdeinit4_kwin.so #15 0xb7738f21 in ?? () from /usr/lib/libkdeinit4_kwin.so #16 0xb76a0ead in ?? () from /usr/lib/libkdeinit4_kwin.so #17 0xb76a87cd in ?? () from /usr/lib/libkdeinit4_kwin.so #18 0xb6532743 in ?? () from /usr/lib/libQtDBus.so.4 #19 0xb653d9f6 in ?? () from /usr/lib/libQtDBus.so.4 #20 0xb63edaaf in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4 #21 0xb58d7fb4 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 #22 0xb58dcf97 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 #23 0xb721c8a1 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5 #24 0xb76c7801 in ?? () from /usr/lib/libkdeinit4_kwin.so #25 0xb63d7f2e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4 #26 0xb63dbccc in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4 #27 0xb63dbe1c in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/libQtCore.so.4 #28 0xb5990669 in ?? () from /usr/lib/libQtGui.so.4 #29 0xb63d713d in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4 #30 0xb63d73b9 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4 #31 0xb63dbef0 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4 #32 0xb58d5d34 in QApplication::exec() () from /usr/lib/libQtGui.so.4 #33 0xb76ca495 in kdemain () from /usr/lib/libkdeinit4_kwin.so #34 0x080485db in _start ()
you should : 1) install -debug package so here the minimum should be kdebase4-workspace-debug, qt4-debug 2) report it upstream with more information like -> the mesa version used -> the video driver used (intel ? ati ? nvidia ? nouveau ? fglrx? etc etc ) -> the desktop effect configuration : Are you for example using direct rendering and opengl2 shaders, does it still crash without thoses options etc etc -> is it happening every time, could you reproduce ? DrKonqui should popup & allows you to report it directly upstream and then you can attach the bug link here. Regards
CC: (none) => balcaen.john
https://bugs.kde.org/show_bug.cgi?id=278993 thanks. Luca.
kde.org says that the driver vboxvideo crashes....
Than there's nothing we can really do here :/ @triage_bugs could you add virtualbox maintainer/last committer on cc, maybe he has an idea how to correctly report this upstream (Oracle) or already have this bug in cc list.
Keywords: (none) => UPSTREAM
From the kde-devel mailing list it seems there's probably a commit which was wrongly removed on kwin that might fix your problem. cf http://lists.kde.org/?l=kde-core-devel&m=131239322402150&w=2
so it seems to be a kde problem. ok I'll keep it controlled in the next updates. thanks. Luca.
it seems fixed. https://bugs.kde.org/show_bug.cgi?id=278993
with today kde updates(4.7.1) it's working. Luca.
Hi Luca, Thanks for reporting this and also for reporting it upstream. We'll close this bug as fixed then.
Status: NEW => RESOLVEDResolution: (none) => FIXED