293477 2012-02-06 21:47:11 +0000 Sudden KWin crash 2012-02-08 17:39:02 +0000 1 1 4 Plasma Oxygen win deco unspecified Ubuntu Linux RESOLVED WAITINGFORINFO NOR crash --- 0 gregor hugo.pereira.da.costa gregor hugo.pereira.da.costa kwin-bugs-null 0 oldest_to_newest 1223865 0 gregor 2012-02-06 21:47:11 +0000 Application: kwin (4.7.4 (4.7.4)) KDE Platform Version: 4.7.4 (4.7.4) 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: Using the desktop as usual. There was a bigger IO and CPU load because of my work, but nothing else. The crash can be reproduced some of the time. -- Backtrace: Application: KWin (kwin), signal: Segmentation fault [Current thread is 1 (Thread 0x7f83516147a0 (LWP 3325))] Thread 4 (Thread 0x7f83393b5700 (LWP 3326)): #0 __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97 #1 0x00007f8350df09df in _L_lock_10501 () from /lib/x86_64-linux-gnu/libc.so.6 #2 0x00007f8350deed71 in __GI___libc_free (mem=0x7f835110c1c0) at malloc.c:3736 #3 0x00007f834d29739b in cleanup (pointer=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:62 #4 ~QScopedPointer (this=0x27cca98, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:100 #5 QObject::~QObject (this=0x27cca90, __in_chrg=<optimized out>) at kernel/qobject.cpp:818 #6 0x00007f834d2abe39 in QEventDispatcherUNIX::~QEventDispatcherUNIX (this=0x27cca90, __in_chrg=<optimized out>) at kernel/qeventdispatcher_unix.cpp:626 #7 0x00007f834d197e34 in QThreadPrivate::finish (arg=0x7f834d5b3580) at thread/qthread_unix.cpp:367 #8 0x00007f834d198d0d in ~__pthread_cleanup_class (this=<synthetic pointer>, __in_chrg=<optimized out>) at /usr/include/pthread.h:545 #9 ~__pthread_cleanup_class (this=<synthetic pointer>, __in_chrg=<optimized out>) at thread/qthread_unix.cpp:824 #10 QThreadPrivate::start (arg=0x7f834d5b3580) at thread/qthread_unix.cpp:290 #11 0x00007f83471baefc in start_thread (arg=0x7f83393b5700) at pthread_create.c:304 #12 0x00007f8350e5389d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #13 0x0000000000000000 in ?? () Thread 3 (Thread 0x7f8332a19700 (LWP 3331)): #0 __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97 #1 0x00007f8350df09df in _L_lock_10501 () from /lib/x86_64-linux-gnu/libc.so.6 #2 0x00007f8350deed71 in __GI___libc_free (mem=0x7f835110c1c0) at malloc.c:3736 #3 0x00007f834d2ac06c in QEventDispatcherUNIX::unregisterSocketNotifier (this=<optimized out>, notifier=<optimized out>) at kernel/qeventdispatcher_unix.cpp:801 #4 0x00007f834d2ad730 in QEventDispatcherUNIXPrivate::doSelect (this=0x2b03030, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:261 #5 0x00007f834d2ad833 in QEventDispatcherUNIX::processEvents (this=0x27b8730, flags=...) at kernel/qeventdispatcher_unix.cpp:918 #6 0x00007f834d27ecf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149 #7 0x00007f834d27eef7 in QEventLoop::exec (this=0x7f8332a18db0, flags=...) at kernel/qeventloop.cpp:201 #8 0x00007f834d19627f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498 #9 0x00007f834d261cbf in QInotifyFileSystemWatcherEngine::run (this=0x2b01f30) at io/qfilesystemwatcher_inotify.cpp:248 #10 0x00007f834d198d05 in QThreadPrivate::start (arg=0x2b01f30) at thread/qthread_unix.cpp:331 #11 0x00007f83471baefc in start_thread (arg=0x7f8332a19700) at pthread_create.c:304 #12 0x00007f8350e5389d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #13 0x0000000000000000 in ?? () Thread 2 (Thread 0x7f83321e8700 (LWP 3332)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162 #1 0x00007f834fcabfe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4 #2 0x00007f834fcac019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4 #3 0x00007f83471baefc in start_thread (arg=0x7f83321e8700) at pthread_create.c:304 #4 0x00007f8350e5389d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #5 0x0000000000000000 in ?? () Thread 1 (Thread 0x7f83516147a0 (LWP 3325)): [KCrash Handler] #6 0x00007f8350dec3f6 in _int_malloc (av=0x7f835110c1c0, bytes=1200) at malloc.c:4636 #7 0x00007f8350dee77d in __GI___libc_malloc (bytes=1200) at malloc.c:3660 #8 0x00007f834c6ec1db in QImageData::create (size=<optimized out>, format=QImage::Format_RGB32, numColors=0) at image/qimage.cpp:247 #9 0x00007f834c6ed36b in QImage::QImage (this=0x7fffe5987c40, width=1, height=300, format=QImage::Format_RGB32) at image/qimage.cpp:849 #10 0x00007f834c7141b5 in QRasterPixmapData::resize (this=0x310e160, width=1, height=300) at image/qpixmap_raster.cpp:120 #11 0x00007f834c70c9ee in QPixmapData::create (w=1, h=300, type=<optimized out>) at image/qpixmapdata.cpp:63 #12 0x00007f834c70504f in QPixmap::init (this=0x3216730, w=<optimized out>, h=<optimized out>, type=<optimized out>) at image/qpixmap.cpp:118 #13 0x00007f834c70635d in QPixmap::QPixmap (this=0x3216730, w=1, h=300) at image/qpixmap.cpp:172 #14 0x00007f833d92fead in Oxygen::Helper::verticalGradient (this=0x278e3a0, color=..., height=300, offset=0) at ../../../libs/oxygen/oxygenhelper.cpp:484 #15 0x00007f833d92c516 in Oxygen::Helper::renderWindowBackground (this=0x278e3a0, p=0x7fffe59880b0, clipRect=..., widget=<optimized out>, window=<optimized out>, color=..., yShift=40, gradientHeight=64) at ../../../libs/oxygen/oxygenhelper.cpp:172 #16 0x00007f833899a5f5 in ?? () from /usr/lib/kde4/kwin3_oxygen.so #17 0x00007f833899d75e in ?? () from /usr/lib/kde4/kwin3_oxygen.so #18 0x00007f834f4d282f in eventFilter (e=0x7fffe59885c0, this=0x2d58560, o=<optimized out>) at ../../../kwin/libkdecorations/kcommondecoration.cpp:877 #19 KCommonDecoration::eventFilter (this=0x2d58560, o=0x2d59740, e=0x7fffe59885c0) at ../../../kwin/libkdecorations/kcommondecoration.cpp:868 #20 0x00007f8338995620 in ?? () from /usr/lib/kde4/kwin3_oxygen.so #21 0x00007f834d27fc88 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x2d59740, event=0x7fffe59885c0) at kernel/qcoreapplication.cpp:902 #22 0x00007f834c62f43f in notify_helper (e=0x7fffe59885c0, receiver=0x2d59740, this=0x263d310) at kernel/qapplication.cpp:4482 #23 QApplicationPrivate::notify_helper (this=0x263d310, receiver=0x2d59740, e=0x7fffe59885c0) at kernel/qapplication.cpp:4458 #24 0x00007f834c6342e1 in QApplication::notify (this=0x7fffe598d780, receiver=0x2d59740, e=0x7fffe59885c0) at kernel/qapplication.cpp:4365 #25 0x00007f8350941466 in KApplication::notify (this=0x7fffe598d780, receiver=0x2d59740, event=0x7fffe59885c0) at ../../kdeui/kernel/kapplication.cpp:311 #26 0x00007f834d27fafc in QCoreApplication::notifyInternal (this=0x7fffe598d780, receiver=0x2d59740, event=0x7fffe59885c0) at kernel/qcoreapplication.cpp:787 #27 0x00007f834c67cbd4 in sendSpontaneousEvent (event=0x7fffe59885c0, receiver=0x2d59740) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218 #28 QWidgetPrivate::drawWidget (this=0x2d59770, pdev=0x2d6ed38, rgn=..., offset=..., flags=14, sharedPainter=0x0, backingStore=0x0) at kernel/qwidget.cpp:5528 #29 0x00007f834c67dde5 in QWidgetPrivate::render (this=0x2d59770, target=0x2d6ed38, targetOffset=..., sourceRegion=<optimized out>, renderFlags=..., readyToRender=<optimized out>) at kernel/qwidget.cpp:5664 #30 0x00007f834c67e059 in QWidget::render (this=<optimized out>, target=<optimized out>, targetOffset=<optimized out>, sourceRegion=<optimized out>, renderFlags=<optimized out>) at kernel/qwidget.cpp:5127 #31 0x00007f83511fbfe5 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #32 0x00007f8351156e1a in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #33 0x00007f83511e8ed0 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #34 0x00007f83511e969c in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #35 0x00007f83511d37a9 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #36 0x00007f83511f2d83 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #37 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #38 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #39 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #40 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #41 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #42 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #43 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #44 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #45 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #46 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #47 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #48 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #49 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #50 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #51 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #52 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #53 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #54 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #55 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #56 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #57 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #58 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #59 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #60 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #61 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #62 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #63 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #64 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #65 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #66 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #67 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #68 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #69 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #70 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #71 0x00007f834f2a29ab in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #72 0x00007f83511f2df8 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #73 0x00007f83511d307b in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #74 0x00007f83511f2bf3 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #75 0x00007f834f2a2aab in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #76 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #77 0x00007f8338595acb in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #78 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #79 0x00007f8338553342 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #80 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #81 0x00007f8338565da2 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #82 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #83 0x00007f833854bb96 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #84 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #85 0x00007f833854ef25 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #86 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #87 0x00007f83385859c1 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #88 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #89 0x00007f83385c0ef6 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #90 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #91 0x00007f833858a747 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #92 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #93 0x00007f8338583e83 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #94 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #95 0x00007f8338584e82 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #96 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #97 0x00007f833859c761 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #98 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #99 0x00007f83385d1999 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #100 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #101 0x00007f8338563d64 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #102 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #103 0x00007f83385518c1 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #104 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #105 0x00007f834f2a2aab in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #106 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #107 0x00007f834f2a2aab in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #108 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #109 0x00007f833857c034 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #110 0x00007f83511f2c68 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #111 0x00007f83511d367e in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #112 0x00007f83511d61d7 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #113 0x00007f83511e43b1 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #114 0x00007f83511d3017 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #115 0x00007f83511f2a97 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #116 0x00007f83385c8cd6 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #117 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #118 0x00007f8338595e1d in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #119 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #120 0x00007f8338551f89 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #121 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #122 0x00007f834f2a2b18 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #123 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #124 0x00007f834f2a2b18 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #125 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #126 0x00007f834f2a2b18 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #127 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #128 0x00007f834f2a2b18 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #129 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #130 0x00007f834f2a2b18 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #131 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #132 0x00007f833858aeb7 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #133 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #134 0x00007f834f2a2b18 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #135 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #136 0x00007f834f2a2b18 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #137 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #138 0x00007f833859f935 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #139 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #140 0x00007f834f2a2b18 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #141 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #142 0x00007f834f2a2b18 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #143 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #144 0x00007f834f2a2b18 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #145 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #146 0x00007f83385c4e21 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #147 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #148 0x00007f83385cb58d in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #149 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #150 0x00007f834f2a2b18 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () from /usr/lib/libkwineffects.so.1abi2 #151 0x00007f83511f2af6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #152 0x00007f83511d5a06 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #153 0x00007f83511ecc82 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #154 0x00007f83511cffbd in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #155 0x00007f834d296789 in QObject::event (this=0x27ccab0, e=<optimized out>) at kernel/qobject.cpp:1181 #156 0x00007f834c62f474 in notify_helper (e=0x7fffe598d360, receiver=0x27ccab0, this=0x263d310) at kernel/qapplication.cpp:4486 #157 QApplicationPrivate::notify_helper (this=0x263d310, receiver=0x27ccab0, e=0x7fffe598d360) at kernel/qapplication.cpp:4458 #158 0x00007f834c6342e1 in QApplication::notify (this=0x7fffe598d780, receiver=0x27ccab0, e=0x7fffe598d360) at kernel/qapplication.cpp:4365 #159 0x00007f8350941466 in KApplication::notify (this=0x7fffe598d780, receiver=0x27ccab0, event=0x7fffe598d360) at ../../kdeui/kernel/kapplication.cpp:311 #160 0x00007f834d27fafc in QCoreApplication::notifyInternal (this=0x7fffe598d780, receiver=0x27ccab0, event=0x7fffe598d360) at kernel/qcoreapplication.cpp:787 #161 0x00007f834d2acd62 in sendEvent (event=0x7fffe598d360, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215 #162 QTimerInfoList::activateTimers (this=0x263ded0) at kernel/qeventdispatcher_unix.cpp:603 #163 0x00007f834d2ad844 in QEventDispatcherUNIX::processEvents (this=0x25faf40, flags=...) at kernel/qeventdispatcher_unix.cpp:922 #164 0x00007f834c6d7f78 in QEventDispatcherX11::processEvents (this=0x25faf40, flags=...) at kernel/qeventdispatcher_x11.cpp:152 #165 0x00007f834d27ecf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149 #166 0x00007f834d27eef7 in QEventLoop::exec (this=0x7fffe598d6c0, flags=...) at kernel/qeventloop.cpp:201 #167 0x00007f834d283789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064 #168 0x00007f835116ccf6 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so #169 0x00007f8350d9330d in __libc_start_main (main=0x400630, argc=3, ubp_av=0x7fffe598dde8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffe598ddd8) at libc-start.c:226 #170 0x0000000000400661 in _start () Reported using DrKonqi 1223867 1 gregor 2012-02-06 21:50:38 +0000 Forgot to mention. I am using latest fglrx driver from Ubuntu repositories (fglrx-installer (2:8.881-0ubuntu4.1) oneiric-proposed). 1223870 2 thomas.luebking 2012-02-06 21:57:44 +0000 corrupted memory in the raster backend of QPixmap, called from the oxygen deco - export QT_GRAPHICSSYSTEM=native (or use the ubuntu config tool to select it) if this happens more often. There's a remote chance that this is caused by the oxygen decoration, but -given ubuntus patch-a-round in Qt- i frankly doubt so :-\ Passing to Hugo anyway. Another option would be that you ran out of memory, ubuntu certainly doesn't configure a swap device, do they? 1223871 3 gregor 2012-02-06 22:01:28 +0000 I've disabled it, since I have 8 GiB memory. I'm also constantly wathing it's memory usage (2.2 GiB). Will try the proposed workaround. Thanks.