Application that crashed: kwin
Version of the application: 4.2.96 (KDE 4.2.96 (KDE 4.3 RC2))
KDE Version: 4.2.96 (KDE 4.2.96 (KDE 4.3 RC2))
Qt Version: 4.5.2
Operating System: Linux 2.6.30-8-generic x86_64
Distribution: Ubuntu karmic (development branch)
What I was doing when the application crashed:
kwin crashed when I applied the "Center" change for "Title Alignment" is exactly what I was doing at the time. My system is running a dual monitor, ATi setup using the open source ATi driver and a custom Xinerama enabled xorg.conf.
Application: KWin (kwin), signal: Segmentation fault
#5 QBasicAtomicInt::ref (this=0x7f8aec001220, desktop=8, areas=) at /usr/include/qt4/QtCore/qatomic_x86_64.h:121
#6 QVector (this=0x7f8aec001220, desktop=8, areas=) at /usr/include/qt4/QtCore/qvector.h:113
#7 QForeachContainer (this=0x7f8aec001220, desktop=8, areas=) at /usr/include/qt4/QtCore/qglobal.h:2054
#8 KWin::Workspace::previousRestrictedMoveArea (this=0x7f8aec001220, desktop=8, areas=) at ../../kwin/geometry.cpp:327
#9 0x00007f8b002e1a2a in KWin::Client::checkWorkspacePosition (this=0x1e0ee60) at ../../kwin/geometry.cpp:1134
#10 0x00007f8b00299ac4 in KWin::Client::updateDecoration (this=0x1e0ee60, check_workspace_pos=true, force=<value optimized out>) at ../../kwin/client.cpp:348
#11 0x00007f8b0028e7e7 in KWin::Workspace::slotReconfigure (this=0x7f8aec001220) at ../../kwin/workspace.cpp:1055
#12 0x00007f8b0028f79c in KWin::Workspace::qt_metacall (this=0x7f8aec001220, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffcdd4ff00) at ./workspace.moc:443
#13 0x00007f8afc2a2e1c in QMetaObject::activate (sender=0x7f8aec0014d8, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x7fffcdd4fd00) at kernel/qobject.cpp:3113
#14 0x00007f8afc29cdc3 in QObject::event (this=0x7f8aec0014d8, e=0x7f8aec001220) at kernel/qobject.cpp:1075
#15 0x00007f8afc99162c in QApplicationPrivate::notify_helper (this=0x19d0430, receiver=0x7f8aec0014d8, e=0x7fffcdd50500) at kernel/qapplication.cpp:4056
#16 0x00007f8afc9988fe in QApplication::notify (this=0x7fffcdd50860, receiver=0x7f8aec0014d8, e=0x7fffcdd50500) at kernel/qapplication.cpp:4021
#17 0x00007f8affaf43f6 in KApplication::notify (this=0x7fffcdd50860, receiver=0x7f8aec0014d8, event=0x7fffcdd50500) at ../../kdeui/kernel/kapplication.cpp:302
#18 0x00007f8afc28dc6c in QCoreApplication::notifyInternal (this=0x7fffcdd50860, receiver=0x7f8aec0014d8, event=0x7fffcdd50500) at kernel/qcoreapplication.cpp:610
#19 0x00007f8afc2b8912 in QCoreApplication::sendEvent (this=0x19d4150) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#20 QTimerInfoList::activateTimers (this=0x19d4150) at kernel/qeventdispatcher_unix.cpp:572
#21 0x00007f8afc2b62ad in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#22 0x00007f8af6c639fe in g_main_dispatch (context=0x19d2df0) at /build/buildd/glib2.0-2.21.3/glib/gmain.c:1960
#23 IA__g_main_context_dispatch (context=0x19d2df0) at /build/buildd/glib2.0-2.21.3/glib/gmain.c:2513
#24 0x00007f8af6c673c8 in g_main_context_iterate (context=0x19d2df0, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>)
#25 0x00007f8af6c674f0 in IA__g_main_context_iteration (context=0x19d2df0, may_block=1) at /build/buildd/glib2.0-2.21.3/glib/gmain.c:2654
#26 0x00007f8afc2b61f6 in QEventDispatcherGlib::processEvents (this=0x19b6cc0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#27 0x00007f8afca25ace in QGuiEventDispatcherGlib::processEvents (this=0x7fffcdd4fc60, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#28 0x00007f8afc28c572 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#29 0x00007f8afc28c944 in QEventLoop::exec (this=0x7fffcdd507a0, flags=) at kernel/qeventloop.cpp:201
#30 0x00007f8afc28eaf9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#31 0x00007f8b002a6054 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../kwin/main.cpp:527
#32 0x00007f8afff0d5e6 in __libc_start_main (main=0x400720 <main>, argc=1, ubp_av=0x7fffcdd50d48, init=0x400750 <__libc_csu_init>, fini=<value optimized out>, rtld_fini=<value optimized out>,
stack_end=0x7fffcdd50d38) at libc-start.c:220
#33 0x0000000000400659 in _start () at ../sysdeps/x86_64/elf/start.S:113
Reported using DrKonqi
What window decoration are you using? That might be an important information for reproducing
Kubuntu's default, which is Ozone.
cannot reproduce neither in RC2 nor in trunk
*** Bug 202572 has been marked as a duplicate of this bug. ***
*** Bug 211439 has been marked as a duplicate of this bug. ***
Martin told me that it could be an upstream Qt bug:
SVN commit 1064056 by luebking:
avoid "deep" QVector copy
M +1 -1 geometry.cpp
WebSVN link: http://websvn.kde.org/?view=rev&revision=1064056
KWin does not crash on my system with KDE 4.3.85 and Qt 4.6.0_20091222 anymore.
*** Bug 220775 has been marked as a duplicate of this bug. ***
seems to be fixed
*** Bug 237816 has been marked as a duplicate of this bug. ***
actually "foreach" creates an implicitly shared copy despite the return is a
reference... so to bypass this bug we'd have to replace "foreach" by eg. an stl
*** Bug 246619 has been marked as a duplicate of this bug. ***
*** Bug 247080 has been marked as a duplicate of this bug. ***
*** Bug 250984 has been marked as a duplicate of this bug. ***
Created attachment 52264 [details]
New crash information added by DrKonqi
Kwin crashed while changing the theme for the window borders.
*** Bug 258964 has been marked as a duplicate of this bug. ***
*** Bug 266300 has been marked as a duplicate of this bug. ***
I am reopening this bug as was probably intended with comment #12. We get this bug with KDE 4.6.0 / Qt 4.7.0, too (see bug 266300), so it is not fixed. The upstream "bug" mentioned in comment #6 is not even confirmed, and I doubt it is a Qt bug.
*** Bug 267839 has been marked as a duplicate of this bug. ***
workspace.cpp:1641 void Workspace::setNumberOfDesktops(int n) is now also called by the desktopgrid effect (and not only through loadDesktopSettings()
so it desperately lacks
workarea.resize(n + 1);
restrictedmovearea.resize(n + 1);
oldrestrictedmovearea.resize(n + 1);
desktopCount_ = n;
just like loadDesktopSettings() - or we just move that entirely there....
w/o any testing i'm selfconfident enough to mark this as new - blame immediate music ;-P
*** Bug 268711 has been marked as a duplicate of this bug. ***
Git commit 40b1f456da80ff24223920749128b742280506bb by Thomas Lübking.
Committed on 07/03/2011 at 18:41.
Pushed by luebking into branch 'master'.
fix & cleanup Workspace::setNumberOfDesktops()
encapsulate all relevant (vector resizing) code to
Workspace::setNumberOfDesktops and invoke it from
Workspace::loadDesktopSettigns, this will likely
M +25 -42 kwin/workspace.cpp
Git commit f3f255fef1be7d36c0a6fb931a46f52178440cb3 by Thomas Lübking.
Committed on 13/04/2011 at 22:58.
Pushed by luebking into branch 'KDE/4.6'.
fix & cleanup Workspace::setNumberOfDesktops()
M +24 -36 kwin/workspace.cpp
(In reply to comment #24)
> Git commit f3f255fef1be7d36c0a6fb931a46f52178440cb3 by Thomas Lübking.
> Committed on 13/04/2011 at 22:58.
> Pushed by luebking into branch 'KDE/4.6'.
> fix & cleanup Workspace::setNumberOfDesktops()
> CCBUG: 200213
> M +24 -36 kwin/workspace.cpp
When building kdebase4-workspace with this patch included (which will be so in 4.6.3) the number of virtual desktop available in the pager applet (& in kcmshell4 desktop) are reduced to 1 & the creation of new virtual desktop is not working as expected :
For example if i'm trying to increase the number of virtual desktop from 1 to 6 using kcmshell4 desktop ,i don't see any creation in the pager applet after.
Maybe the pager applet need some changes too ?
Yes, known - but thanks.
The backport isn't "complete" compared to the master version (because i didn't want to change sth. that seemed wrong but harmless) - turned out to cause a functional lack on initial startup.
(if you run the desktopgrid effect and add, then remove a desktop the state will be validated)
The change will be committed later this day. Sorry for trouble.
Git commit 79187a9feb1ae0a0c5f49b7669a65b3606271ea1 by Thomas Lübking.
Committed on 18/04/2011 at 21:16.
Pushed by luebking into branch 'KDE/4.6'.
complete backport for setNumberOfDesktops() fix
completes backport f3f255fef1be7d36c0a6fb931a46f52178440cb3 to match
master version 40b1f456da80ff24223920749128b742280506bb since the
incomplete backport lead to unset number of desktops on the root window
(applies only after relogin)
M +6 -9 kwin/workspace.cpp
is this one fixed?
"likely" - the CC was intentional since i could not reproduce this crash (compiler aggression thing?!)
The altered code however was prone to invalidate the vector, causing out-of-bound access - it nevertheless could still be a Qt bug - or a combination of both ;-)
For the general bugzilla untrashing, I'll just mark it fixed - and wait for new occurrences... (with new traces)