290758 – I closed a Firefox window when crash occured

Bug 290758 - I closed a Firefox window when crash occured

Summary: I closed a Firefox window when crash occured

Status:	RESOLVED FIXED

Alias:	None

Product:	kwin
Classification:	Plasma
Component:	window-tabbing (show other bugs)
Version:	unspecified
Platform:	Ubuntu Linux

Importance:	NOR crash
Target Milestone:	---
Assignee:	KWin default assignee

URL:
Keywords:

Depends on:
Blocks:

Reported:	2012-01-05 23:49 UTC by m.wege
Modified:	2012-05-17 10:05 UTC (History)
CC List:	1 user (show)

See Also:
Latest Commit:
Version Fixed In:	4.9
Sentry Crash Report:

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Description m.wege 2012-01-05 23:49:02 UTC

Application: kwin (4.7.95 (4.8 RC1 (4.7.95))
KDE Platform Version: 4.7.95 (4.8 RC1 (4.7.95)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-15-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: I closed a Firefox window when crash occured. There were two of them, do not know if that is relevant.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f107977b7a0 (LWP 3870))]

Thread 3 (Thread 0x7f1070c93700 (LWP 3889)):
#0  0x00000030c1cda913 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00000030ca594bc6 in qt_safe_select (nfds=18, fdread=0x1d81c40, fdwrite=0x1d81ed8, fdexcept=0x1d82170, orig_timeout=<optimized out>) at kernel/qcore_unix.cpp:82
#2  0x00000030ca59a330 in QEventDispatcherUNIXPrivate::doSelect (this=0x1d81a80, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:219
#3  0x00000030ca59a833 in QEventDispatcherUNIX::processEvents (this=0x1f14c60, flags=...) at kernel/qeventdispatcher_unix.cpp:918
#4  0x00000030ca56bcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00000030ca56bef7 in QEventLoop::exec (this=0x7f1070c92db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00000030ca48327f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00000030ca54ecbf in QInotifyFileSystemWatcherEngine::run (this=0x1d80ae0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00000030ca485d05 in QThreadPrivate::start (arg=0x1d80ae0) at thread/qthread_unix.cpp:331
#9  0x00000030c2407efc in start_thread (arg=0x7f1070c93700) at pthread_create.c:304
#10 0x00000030c1ce189d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f106bfff700 (LWP 3890)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00000030d3b86fe2 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x30d3e801e0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00000030d3b87019 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00000030c2407efc in start_thread (arg=0x7f106bfff700) at pthread_create.c:304
#4  0x00000030c1ce189d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f107977b7a0 (LWP 3870)):
[KCrash Handler]
#6  size (this=0xff0000ffc8) at /usr/include/qt4/QtCore/qlist.h:828
#7  QList<KWin::ClientGroup*>::indexOf (this=0xff0000ffc8, t=@0x7fff9ffb5cf8, from=0) at /usr/include/qt4/QtCore/qlist.h:831
#8  0x00007f1079e62abc in KWin::Workspace::indexOfClientGroup (this=<optimized out>, group=0x0) at ../../kwin/workspace.cpp:2108
#9  0x00007f1079e71039 in KWin::Client::setClientGroup (this=0x35bd890, group=<optimized out>) at ../../kwin/client.cpp:1917
#10 0x00007f1079e66056 in KWin::Workspace::removeClientGroup (this=0x1afb470, group=0x1f37c60) at ../../kwin/workspace.cpp:2128
#11 0x00007f1079e78c59 in KWin::ClientGroup::remove (this=0x1f37c60, c=0x22b6e20, newGeom=..., toNullGroup=true) at ../../kwin/clientgroup.cpp:156
#12 0x00007f1079e76f30 in KWin::Client::releaseWindow (this=0x22b6e20, on_shutdown=false) at ../../kwin/client.cpp:279
#13 0x00007f1079e8fb79 in KWin::Client::windowEvent (this=0x22b6e20, e=0x7fff9ffb6540) at ../../kwin/events.cpp:588
#14 0x00007f1079e9018d in KWin::Workspace::workspaceEvent (this=0x1afb470, e=0x7fff9ffb6540) at ../../kwin/events.cpp:293
#15 0x00007f1079e82708 in KWin::Application::x11EventFilter (this=0x7fff9ffb6850, e=0x7fff9ffb6540) at ../../kwin/main.cpp:359
#16 0x000000345706ba55 in qt_x11EventFilter (ev=0x7fff9ffb6540) at kernel/qapplication_x11.cpp:440
#17 qt_x11EventFilter (ev=0x7fff9ffb6540) at kernel/qapplication_x11.cpp:428
#18 0x000000345707ac90 in QApplication::x11ProcessEvent (this=0x7fff9ffb6850, event=0x7fff9ffb6540) at kernel/qapplication_x11.cpp:3402
#19 0x00000034570a4e2a in QEventDispatcherX11::processEvents (this=0x1925f40, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#20 0x00000030ca56bcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#21 0x00000030ca56bef7 in QEventLoop::exec (this=0x7fff9ffb6790, flags=...) at kernel/qeventloop.cpp:201
#22 0x00000030ca570789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#23 0x00007f1079e84e56 in kdemain (argc=<optimized out>, argv=<optimized out>) at ../../kwin/main.cpp:525
#24 0x00000030c1c2130d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=3, ubp_av=0x7fff9ffb6eb8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff9ffb6ea8) at libc-start.c:226
#25 0x0000000000400671 in _start ()

Reported using DrKonqi

Comment 1 Thomas Lübking 2012-01-06 01:03:08 UTC

This one's gonna be more tricky since the bug is likely not in this location but the clientgroup data has likely been invalidated before

The interesting line is
#8  0x00007f1079e62abc in KWin::Workspace::indexOfClientGroup (this=<optimized
out>, group=0x0) at ../../kwin/workspace.cpp:2108

group is NULL, what means that one of the clients in clientGroups.at('n') has a backref to a NULL clientGroup or (rather, because i doubt QList is broken at this point) the clientGroup object at this time is just junk and the stack polluted....

@M. Wege
Did you maybe switch decorations or toggle tabbing support in the oxygen decoration?
Otherwise there's a chance that we just fixed the source of this issue for RC2

Comment 2 Martin Flöser 2012-01-06 07:10:32 UTC

meh I am seriously tempted to wrap all ClientGroup stuff in smart pointers.

Oh and just for the record: you did not use KWin scripting to group windows, 
right? Because that was/is rather broken till 4.9

Comment 3 Thomas Lübking 2012-01-06 07:37:02 UTC

(In reply to comment #2)
> meh I am seriously tempted to wrap all ClientGroup stuff in smart pointers.

I'm not too sure that this would help us here - it's more like the list has been messed up internally, ie. size() is not all correct at this moment, and his is an out of bounds access. I suspect the autoremove-on-deletion "feature" - or it's scripting ;-)

Comment 4 m.wege 2012-01-06 09:14:32 UTC

> Did you maybe switch decorations
No.
> or toggle tabbing support in the oxygen
> decoration?
Aehm, I did detach the Firefox window which was grouped with another Firefox window. But not directly before, rather much earlier.

>Oh and just for the record: you did not use KWin scripting to group windows, 
>right? Because that was/is rather broken till 4.9
Not that I am aware off.

Comment 5 Thomas Lübking 2012-01-06 14:49:28 UTC

(In reply to comment #4)
> Aehm, I did detach the Firefox window which was grouped with another Firefox
> window. But not directly before, rather much earlier.

I actually meant the config setting the oxygen deco provides (it can disable tabbing support - for a reason)

However, does this read "the firefox window which i closed and any other window which might have closed in consequence was NOT member of a tabgroup at that time at all!" ?

Comment 6 m.wege 2012-01-06 15:27:56 UTC

>However, does this read "the firefox window which i closed and any other
> window which might have closed in consequence was NOT member of a tabgroup at
> that time at all!" ?
correct.

Comment 7 Thomas Lübking 2012-02-11 15:03:11 UTC

Git commit 94b2ad7b85801e37e2df4671cdc4f26b6d7e5506 by Thomas Lübking.
Committed on 12/01/2012 at 07:42.
Pushed by luebking into branch 'master'.

fix tabbing
Related: bug 290959, bug 265160, bug 229292, bug 238279, bug 222831, bug 278275, bug 245747, bug 230000, bug 253697, bug 230570, bug 265977, bug 225337, bug 225339

REVIEW: 103855

M  +1    -1    kwin/CMakeLists.txt
M  +2    -2    kwin/activation.cpp
M  +92   -51   kwin/bridge.cpp
M  +17   -11   kwin/bridge.h
M  +77   -47   kwin/client.cpp
M  +21   -12   kwin/client.h
D  +0    -357  kwin/clientgroup.cpp
D  +0    -266  kwin/clientgroup.h
M  +0    -1    kwin/clients/CMakeLists.txt
M  +2    -2    kwin/clients/aurorae/src/aurorae.cpp
M  +51   -62   kwin/clients/oxygen/oxygenclient.cpp
M  +4    -4    kwin/clients/oxygen/oxygenclient.h
M  +3    -3    kwin/clients/oxygen/oxygenclientgroupitemdata.cpp
M  +1    -1    kwin/clients/oxygen/oxygenclientgroupitemdata.h
M  +1    -1    kwin/clients/oxygen/oxygenfactory.cpp
D  +0    -15   kwin/clients/tabstrip/CMakeLists.txt
D  +0    -10   kwin/clients/tabstrip/config/CMakeLists.txt
D  +0    -96   kwin/clients/tabstrip/config/tabstripconfig.cpp
D  +0    -56   kwin/clients/tabstrip/config/tabstripconfig.h
D  +0    -78   kwin/clients/tabstrip/config/tabstripconfig.ui
D  +0    -63   kwin/clients/tabstrip/tabstrip.desktop
D  +0    -317  kwin/clients/tabstrip/tabstripbutton.cpp
D  +0    -55   kwin/clients/tabstrip/tabstripbutton.h
D  +0    -443  kwin/clients/tabstrip/tabstripdecoration.cpp
D  +0    -60   kwin/clients/tabstrip/tabstripdecoration.h
D  +0    -113  kwin/clients/tabstrip/tabstripfactory.cpp
D  +0    -63   kwin/clients/tabstrip/tabstripfactory.h
M  +12   -10   kwin/effects.cpp
M  +3    -3    kwin/effects.h
M  +1    -1    kwin/effects/boxswitch/boxswitch.cpp
M  +4    -4    kwin/effects/desktopgrid/desktopgrid.cpp
M  +2    -2    kwin/effects/flipswitch/flipswitch.cpp
M  +3    -3    kwin/effects/highlightwindow/highlightwindow.cpp
M  +3    -3    kwin/effects/presentwindows/presentwindows.cpp
M  +1    -1    kwin/effects/slideback/slideback.cpp
M  +3    -3    kwin/events.cpp
M  +15   -15   kwin/geometry.cpp
M  +19   -14   kwin/kcmkwin/kwindecoration/preview.cpp
M  +12   -11   kwin/kcmkwin/kwindecoration/preview.h
M  +3    -3    kwin/kwinbindings.cpp
M  +4    -4    kwin/layers.cpp
M  +27   -22   kwin/libkdecorations/kcommondecoration.cpp
M  +13   -11   kwin/libkdecorations/kcommondecoration.h
M  +31   -24   kwin/libkdecorations/kdecoration.cpp
M  +45   -52   kwin/libkdecorations/kdecoration.h
M  +15   -11   kwin/libkdecorations/kdecorationbridge.h
M  +1    -1    kwin/libkwineffects/kwineffects.cpp
M  +5    -5    kwin/libkwineffects/kwineffects.h
M  +92   -25   kwin/manage.cpp
M  +5    -5    kwin/options.cpp
M  +2    -2    kwin/options.h
M  +2    -2    kwin/scene.cpp
M  +1    -1    kwin/scene.h
M  +1    -16   kwin/scripting/meta.cpp
M  +0    -11   kwin/scripting/meta.h
M  +0    -4    kwin/scripting/workspace_wrapper.cpp
M  +0    -4    kwin/scripting/workspace_wrapper.h
M  +11   -13   kwin/sm.cpp
M  +2    -2    kwin/sm.h
A  +295  -0    kwin/tabgroup.cpp     [License: GPL (v2)]
A  +186  -0    kwin/tabgroup.h     [License: GPL (v2)]
M  +4    -0    kwin/toplevel.cpp
M  +122  -166  kwin/useractions.cpp
M  +8    -90   kwin/workspace.cpp
M  +13   -31   kwin/workspace.h

http://commits.kde.org/kde-workspace/94b2ad7b85801e37e2df4671cdc4f26b6d7e5506

Comment 8 Thomas Lübking 2012-02-11 15:30:57 UTC

Git commit 206257d750ca75e9b666acfc1413781614ab9a2d by Thomas Lübking.
Committed on 12/01/2012 at 07:42.
Pushed by luebking into branch 'master'.

fix tabbing
Related: bug 290959, bug 265160, bug 229292, bug 238279, bug 222831, bug 278275, bug 245747, bug 230000, bug 253697, bug 230570, bug 265977, bug 225337, bug 225339

REVIEW: 103855

M  +1    -1    kwin/CMakeLists.txt
M  +2    -2    kwin/activation.cpp
M  +92   -51   kwin/bridge.cpp
M  +17   -11   kwin/bridge.h
M  +77   -47   kwin/client.cpp
M  +21   -12   kwin/client.h
D  +0    -357  kwin/clientgroup.cpp
D  +0    -266  kwin/clientgroup.h
M  +0    -1    kwin/clients/CMakeLists.txt
M  +2    -2    kwin/clients/aurorae/src/aurorae.cpp
M  +51   -62   kwin/clients/oxygen/oxygenclient.cpp
M  +4    -4    kwin/clients/oxygen/oxygenclient.h
M  +3    -3    kwin/clients/oxygen/oxygenclientgroupitemdata.cpp
M  +1    -1    kwin/clients/oxygen/oxygenclientgroupitemdata.h
M  +1    -1    kwin/clients/oxygen/oxygenfactory.cpp
D  +0    -15   kwin/clients/tabstrip/CMakeLists.txt
D  +0    -10   kwin/clients/tabstrip/config/CMakeLists.txt
D  +0    -96   kwin/clients/tabstrip/config/tabstripconfig.cpp
D  +0    -56   kwin/clients/tabstrip/config/tabstripconfig.h
D  +0    -78   kwin/clients/tabstrip/config/tabstripconfig.ui
D  +0    -63   kwin/clients/tabstrip/tabstrip.desktop
D  +0    -317  kwin/clients/tabstrip/tabstripbutton.cpp
D  +0    -55   kwin/clients/tabstrip/tabstripbutton.h
D  +0    -443  kwin/clients/tabstrip/tabstripdecoration.cpp
D  +0    -60   kwin/clients/tabstrip/tabstripdecoration.h
D  +0    -113  kwin/clients/tabstrip/tabstripfactory.cpp
D  +0    -63   kwin/clients/tabstrip/tabstripfactory.h
M  +12   -10   kwin/effects.cpp
M  +3    -3    kwin/effects.h
M  +1    -1    kwin/effects/boxswitch/boxswitch.cpp
M  +4    -4    kwin/effects/desktopgrid/desktopgrid.cpp
M  +2    -2    kwin/effects/flipswitch/flipswitch.cpp
M  +3    -3    kwin/effects/highlightwindow/highlightwindow.cpp
M  +3    -3    kwin/effects/presentwindows/presentwindows.cpp
M  +1    -1    kwin/effects/slideback/slideback.cpp
M  +3    -3    kwin/events.cpp
M  +15   -15   kwin/geometry.cpp
M  +19   -14   kwin/kcmkwin/kwindecoration/preview.cpp
M  +12   -11   kwin/kcmkwin/kwindecoration/preview.h
M  +3    -3    kwin/kwinbindings.cpp
M  +4    -4    kwin/layers.cpp
M  +27   -22   kwin/libkdecorations/kcommondecoration.cpp
M  +13   -11   kwin/libkdecorations/kcommondecoration.h
M  +31   -24   kwin/libkdecorations/kdecoration.cpp
M  +45   -52   kwin/libkdecorations/kdecoration.h
M  +15   -11   kwin/libkdecorations/kdecorationbridge.h
M  +1    -1    kwin/libkwineffects/kwineffects.cpp
M  +5    -5    kwin/libkwineffects/kwineffects.h
M  +92   -25   kwin/manage.cpp
M  +5    -5    kwin/options.cpp
M  +2    -2    kwin/options.h
M  +2    -2    kwin/scene.cpp
M  +1    -1    kwin/scene.h
M  +1    -16   kwin/scripting/meta.cpp
M  +0    -11   kwin/scripting/meta.h
M  +0    -4    kwin/scripting/workspace_wrapper.cpp
M  +0    -4    kwin/scripting/workspace_wrapper.h
M  +11   -13   kwin/sm.cpp
M  +2    -2    kwin/sm.h
A  +295  -0    kwin/tabgroup.cpp     [License: GPL (v2)]
A  +186  -0    kwin/tabgroup.h     [License: GPL (v2)]
M  +4    -0    kwin/toplevel.cpp
M  +122  -166  kwin/useractions.cpp
M  +8    -90   kwin/workspace.cpp
M  +13   -31   kwin/workspace.h

http://commits.kde.org/kde-workspace/206257d750ca75e9b666acfc1413781614ab9a2d

Comment 9 Pete Chapman 2012-05-17 09:57:31 UTC

Perhaps not fixed? I just experienced a similar crash, also when closing a firefox window:

Application: kwin (4.8.2 (4.8.2))
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-24-generic x86_64
Distribution: Ubuntu 12.04 LTS

Application: KWin (kwin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f9668a437c0 (LWP 2277))]

Thread 3 (Thread 0x7f9649868700 (LWP 2286)):
#0  0x00007fff05bff8de in ?? ()
#1  0x00007f965d4df15d in __GI_clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00007f96638c7bb4 in do_gettime (frac=0x7f9649867b68, sec=0x7f9649867b60) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f966399fb8d in QTimerInfoList::updateCurrentTime (this=0x7f9640001198) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007f966399fec3 in QTimerInfoList::timerWait (this=0x7f9640001198, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x00007f96639a1d31 in QEventDispatcherUNIX::processEvents (this=0x7f9640000910, flags=...) at kernel/qeventdispatcher_unix.cpp:913
#7  0x00007f966396ec82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007f966396eed7 in QEventLoop::exec (this=0x7f9649867cd0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007f966386dfa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#10 0x00007f966394e9ff in QInotifyFileSystemWatcherEngine::run (this=0x1cd8960) at io/qfilesystemwatcher_inotify.cpp:248
#11 0x00007f9663870fcb in QThreadPrivate::start (arg=0x1cd8960) at thread/qthread_unix.cpp:298
#12 0x00007f96644bdb74 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#13 0x00007f965ca9be9a in start_thread (arg=0x7f9649868700) at pthread_create.c:308
#14 0x00007f96682594bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#15 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f9649067700 (LWP 2287)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f9664d12222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f9664d12259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f96644bdb74 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#4  0x00007f965ca9be9a in start_thread (arg=0x7f9649067700) at pthread_create.c:308
#5  0x00007f96682594bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f9668a437c0 (LWP 2277)):
[KCrash Handler]
#6  size (this=0x12000ca) at /usr/include/qt4/QtCore/qlist.h:847
#7  QList<KWin::ClientGroup*>::indexOf (this=0x12000ca, t=@0x7fff05a96608: 0x2a0012b, from=0) at /usr/include/qt4/QtCore/qlist.h:850
#8  0x00007f96685628dc in KWin::Workspace::indexOfClientGroup (this=<optimized out>, group=0x2a0012b) at ../../kwin/workspace.cpp:2122
#9  0x00007f9668570b49 in KWin::Client::setClientGroup (this=0x3011ef0, group=<optimized out>) at ../../kwin/client.cpp:1922
#10 0x00007f9668567ac6 in KWin::Workspace::removeClientGroup (this=0x1db6c30, group=0x2dc1d30) at ../../kwin/workspace.cpp:2142
#11 0x00007f96685786d9 in KWin::ClientGroup::remove (this=0x2dc1d30, c=0x30a53b0, newGeom=..., toNullGroup=true) at ../../kwin/clientgroup.cpp:156
#12 0x00007f9668576910 in KWin::Client::releaseWindow (this=0x30a53b0, on_shutdown=false) at ../../kwin/client.cpp:279
#13 0x00007f966858fa59 in KWin::Client::windowEvent (this=0x30a53b0, e=0x7fff05a96ef0) at ../../kwin/events.cpp:582
#14 0x00007f966859006d in KWin::Workspace::workspaceEvent (this=0x1db6c30, e=0x7fff05a96ef0) at ../../kwin/events.cpp:293
#15 0x00007f9668582288 in KWin::Application::x11EventFilter (this=0x7fff05a97200, e=0x7fff05a96ef0) at ../../kwin/main.cpp:359
#16 0x00007f9662d61b85 in qt_x11EventFilter (ev=0x7fff05a96ef0) at kernel/qapplication_x11.cpp:441
#17 qt_x11EventFilter (ev=0x7fff05a96ef0) at kernel/qapplication_x11.cpp:429
#18 0x00007f9662d70f98 in QApplication::x11ProcessEvent (this=0x7fff05a97200, event=0x7fff05a96ef0) at kernel/qapplication_x11.cpp:3444
#19 0x00007f9662d9bb3a in QEventDispatcherX11::processEvents (this=0x1bb3ad0, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#20 0x00007f966396ec82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#21 0x00007f966396eed7 in QEventLoop::exec (this=0x7fff05a97140, flags=...) at kernel/qeventloop.cpp:204
#22 0x00007f9663973f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#23 0x00007f9668584a06 in kdemain (argc=<optimized out>, argv=<optimized out>) at ../../kwin/main.cpp:541
#24 0x00007f966818876d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=3, ubp_av=0x7fff05a97928, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff05a97918) at libc-start.c:226
#25 0x0000000000400671 in _start ()

Comment 10 Thomas Lübking 2012-05-17 10:05:31 UTC

i really forgot  the "fixed-in" with the commit, pays back now :-(
-> the fix is only in what will be released as 4.9