'[Bug 198720] New: Kwin crash after key got stuck'

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List:       kwin
Subject:    [Bug 198720] New: Kwin crash after key got stuck
From:       Octavian <octavian.voicu () gmail ! com>
Date:       2009-07-03 1:36:19
Message-ID: bug-198720-4790 () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=198720

           Summary: Kwin crash after key got stuck
           Product: kwin
           Version: unspecified
          Platform: Unlisted Binaries
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: kwin@kde.org
        ReportedBy: octavian.voicu@gmail.com

Application that crashed: kwin
Version of the application: 4.2.95 (KDE 4.2.95 (KDE 4.3 RC1))
KDE Version: 4.2.95 (KDE 4.2.95 (KDE 4.3 RC1))
Qt Version: 4.5.0
Operating System: Linux 2.6.28-13-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
At some point, one of the keys on my keyboard got stuck, so nothing on the
keyboard worked anymore. This is a really frequent and annoying bug. The key
remains stuck only for the current session, so if I switch to a virtual
terminal it works normally and a logout fixes the problem.

Except that I couldn't use the keyboard, everything worked normally. After
switched to a virtual terminal with Ctrl+Alt+F1 and then returning to the
desktop, the screen was kind of black (with some artefacts) and not responding.
After some time, kwin crashed and everything went back to normal. This is the
crash report, although I couldn't find libGLcore debug symbols (don't thing
there are any unless I compile the lib myself).

Hope this helps. I would especially like to help in tracking the initial key
got stuck bug, not sure if it's related directly to the crash. Not sure where
to start to track that bug, though.

 -- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[KCrash Handler]
#4  0x00007f94cc5334e0 in ?? () from /usr/lib/libGLcore.so.1
#5  0x00007f94cc536738 in ?? () from /usr/lib/libGLcore.so.1
#6  0x00007f94cc247816 in ?? () from /usr/lib/libGLcore.so.1
#7  0x00007f94cc2478ce in ?? () from /usr/lib/libGLcore.so.1
#8  0x00007f94cc7b0daa in _nv000096gl () from /usr/lib/libGLcore.so.1
#9  0x00007f94d375103b in glXReleaseTexImageEXT () from /usr/lib/libGL.so.1
#10 0x00007f94d73281ec in KWin::SceneOpenGL::Texture::release (this=0x15a6720)
at /build/buildd/kdebase-workspace-4.2.95/kwin/scene_opengl.cpp:1006
#11 0x00007f94d73285d1 in KWin::SceneOpenGL::Texture::discard (this=0x15a6720)
at /build/buildd/kdebase-workspace-4.2.95/kwin/scene_opengl.cpp:997
#12 0x00007f94d73285ed in KWin::SceneOpenGL::Window::discardTexture
(this=0x15a66f0) at
/build/buildd/kdebase-workspace-4.2.95/kwin/scene_opengl.cpp:1329
#13 0x00007f94d7328723 in ~Window (this=0x7f94c86df010) at
/build/buildd/kdebase-workspace-4.2.95/kwin/scene_opengl.cpp:1302
#14 0x00007f94d732ba4d in KWin::SceneOpenGL::windowClosed (this=0x1299460,
c=0x1844440, deleted=0x0) at
/build/buildd/kdebase-workspace-4.2.95/kwin/scene_opengl.cpp:931
#15 0x00007f94d7317239 in KWin::Workspace::finishCompositing (this=0x1307660)
at /build/buildd/kdebase-workspace-4.2.95/kwin/composite.cpp:227
#16 0x00007f94d7318a20 in KWin::Workspace::suspendCompositing
(this=0x7f94c86df010, suspend=160) at
/build/buildd/kdebase-workspace-4.2.95/kwin/composite.cpp:307
#17 0x00007f94d72b5ffd in KWin::Workspace::qt_metacall (this=0x1307660,
_c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffdf77e1f0)
    at
/build/buildd/kdebase-workspace-4.2.95/obj-x86_64-linux-gnu/kwin/workspace.moc:453
#18 0x00007f94d49901f2 in QMetaObject::activate (sender=0x2239ba0,
from_signal_index=<value optimized out>, to_signal_index=4, argv=0x0) at
kernel/qobject.cpp:3069
#19 0x00007f94d499552f in QSingleShotTimer::timerEvent (this=0x2239ba0) at
kernel/qtimer.cpp:298
#20 0x00007f94d498a4d3 in QObject::event (this=0x2239ba0, e=0x13d40a0) at
kernel/qobject.cpp:1082
#21 0x00007f94d50bf78d in QApplicationPrivate::notify_helper (this=0x1149740,
receiver=0x2239ba0, e=0x7fffdf77e8b0) at kernel/qapplication.cpp:4084
#22 0x00007f94d50c797a in QApplication::notify (this=0x7fffdf77ec20,
receiver=0x2239ba0, e=0x7fffdf77e8b0) at kernel/qapplication.cpp:4049
#23 0x00007f94d662a62b in KApplication::notify (this=0x7fffdf77ec20,
receiver=0x2239ba0, event=0x7fffdf77e8b0) at
/build/buildd/kde4libs-4.2.95/kdeui/kernel/kapplication.cpp:302
#24 0x00007f94d497a75c in QCoreApplication::notifyInternal
(this=0x7fffdf77ec20, receiver=0x2239ba0, event=0x7fffdf77e8b0) at
kernel/qcoreapplication.cpp:602
#25 0x00007f94d49a77f6 in QTimerInfoList::activateTimers (this=0x114d4b0) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#26 0x00007f94d49a3f0d in timerSourceDispatch (source=<value optimized out>) at
kernel/qeventdispatcher_glib.cpp:164
#27 0x00007f94cdc7420a in IA__g_main_context_dispatch (context=0x114c120) at
/build/buildd/glib2.0-2.20.1/glib/gmain.c:1814
#28 0x00007f94cdc778e0 in g_main_context_iterate (context=0x114c120, block=1,
dispatch=1, self=<value optimized out>) at
/build/buildd/glib2.0-2.20.1/glib/gmain.c:2448
#29 0x00007f94cdc77a7c in IA__g_main_context_iteration (context=0x114c120,
may_block=1) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2511
#30 0x00007f94d49a3e6f in QEventDispatcherGlib::processEvents (this=0x112fee0,
flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:323
#31 0x00007f94d5157bef in QGuiEventDispatcherGlib::processEvents
(this=0x7f94c86df010, flags=<value optimized out>) at
kernel/qguieventdispatcher_glib.cpp:202
#32 0x00007f94d4979002 in QEventLoop::processEvents (this=<value optimized
out>, flags={i = -545789152}) at kernel/qeventloop.cpp:149
#33 0x00007f94d49793cd in QEventLoop::exec (this=0x7fffdf77eb60, flags={i =
-545789072}) at kernel/qeventloop.cpp:200
#34 0x00007f94d497b694 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:880
#35 0x00007f94d72ce038 in kdemain (argc=3, argv=0x7fffdf77f108) at
/build/buildd/kdebase-workspace-4.2.95/kwin/main.cpp:527
#36 0x00007f94d1db85a6 in __libc_start_main (main=0x4008c0 <main>, argc=3,
ubp_av=0x7fffdf77f108, init=0x4008f0 <__libc_csu_init>, fini=<value optimized
out>, rtld_fini=<value optimized out>, 
    stack_end=0x7fffdf77f0f8) at libc-start.c:220
#37 0x00000000004007f9 in _start () at ../sysdeps/x86_64/elf/start.S:113

Reported using DrKonqi

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