Bug 309805

Summary: crash on shutdown
Product: [Unmaintained] plasma4 Reporter: blenners
Component: generalAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED DUPLICATE    
Severity: crash    
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description blenners 2012-11-09 11:52:28 UTC 
Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2) "release 5" (Compiled from sources)
Qt Version: 4.7.4
Operating System: Linux 3.1.10-1.16-desktop x86_64
Distribution: "openSUSE 12.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
closing down my system:  has happened the past three shutdowns

-- Backtrace:
Application: Plasma Desktop Shell (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f1c9d1ad760 (LWP 1850))]

Thread 12 (Thread 0x7f1c7a222700 (LWP 1851)):
#0  0x00007f1c9a814ff3 in poll () from /lib64/libc.so.6
#1  0x00007f1c97608ae8 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f1c97608fa9 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f1c9be26586 in QEventDispatcherGlib::processEvents (this=0x7f1c740008c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f1c9bdfaa32 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f1c9bdfac2f in QEventLoop::exec (this=0x7f1c7a221df0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f1c9bd125df in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f1c9bdddaff in QInotifyFileSystemWatcherEngine::run (this=0x1119e20) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f1c9bd15025 in QThreadPrivate::start (arg=0x1119e20) at thread/qthread_unix.cpp:331
#9  0x00007f1c9ba84f05 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f1c9a81e10d in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f1c71322700 (LWP 8716)):
#0  0x00007f1c9ba88e6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f1c9bd154bb in wait (time=18446744073709551615, this=0x11b26f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11773e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f1c8fb3d104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x12044d0, th=0x24d1b70) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f1c8fb3f6ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x1184ff0, th=0x24d1b70) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f1c8fb3e56f in ThreadWeaver::ThreadRunHelper::run (this=0x7f1c71321e40, parent=0x12044d0, th=0x24d1b70) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f1c8fb3e5fb in ThreadWeaver::Thread::run (this=0x24d1b70) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f1c9bd15025 in QThreadPrivate::start (arg=0x24d1b70) at thread/qthread_unix.cpp:331
#8  0x00007f1c9ba84f05 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f1c9a81e10d in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f1c72572700 (LWP 8717)):
#0  0x00007f1c9ba88e6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f1c9bd154bb in wait (time=18446744073709551615, this=0x11b26f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11773e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f1c8fb3d104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x12044d0, th=0x250ce20) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f1c8fb3f6ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x1184ff0, th=0x250ce20) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f1c8fb3e56f in ThreadWeaver::ThreadRunHelper::run (this=0x7f1c72571e40, parent=0x12044d0, th=0x250ce20) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f1c8fb3e5fb in ThreadWeaver::Thread::run (this=0x250ce20) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f1c9bd15025 in QThreadPrivate::start (arg=0x250ce20) at thread/qthread_unix.cpp:331
#8  0x00007f1c9ba84f05 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f1c9a81e10d in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f1c61d95700 (LWP 8718)):
#0  0x00007f1c9ba88e6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f1c9bd154bb in wait (time=18446744073709551615, this=0x11b26f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11773e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f1c8fb3d104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x12044d0, th=0x2433fc0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f1c8fb3f6ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x1184ff0, th=0x2433fc0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f1c8fb3f6c4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1184ff0, th=0x2433fc0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f1c8fb3f6c4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1184ff0, th=0x2433fc0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f1c8fb3e56f in ThreadWeaver::ThreadRunHelper::run (this=0x7f1c61d94e40, parent=0x12044d0, th=0x2433fc0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#8  0x00007f1c8fb3e5fb in ThreadWeaver::Thread::run (this=0x2433fc0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#9  0x00007f1c9bd15025 in QThreadPrivate::start (arg=0x2433fc0) at thread/qthread_unix.cpp:331
#10 0x00007f1c9ba84f05 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f1c9a81e10d in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f1c61594700 (LWP 8719)):
#0  0x00007f1c9ba88e6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f1c9bd154bb in wait (time=18446744073709551615, this=0x11b26f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11773e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f1c8fb3d104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x12044d0, th=0x26149c0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f1c8fb3f6ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x1184ff0, th=0x26149c0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f1c8fb3e56f in ThreadWeaver::ThreadRunHelper::run (this=0x7f1c61593e40, parent=0x12044d0, th=0x26149c0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f1c8fb3e5fb in ThreadWeaver::Thread::run (this=0x26149c0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f1c9bd15025 in QThreadPrivate::start (arg=0x26149c0) at thread/qthread_unix.cpp:331
#8  0x00007f1c9ba84f05 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f1c9a81e10d in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f1c60d93700 (LWP 8720)):
#0  0x00007f1c9ba88e6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f1c9bd154bb in wait (time=18446744073709551615, this=0x11b26f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11773e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f1c8fb3d104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x12044d0, th=0x26632b0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f1c8fb3f6ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x1184ff0, th=0x26632b0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f1c8fb3e56f in ThreadWeaver::ThreadRunHelper::run (this=0x7f1c60d92e40, parent=0x12044d0, th=0x26632b0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f1c8fb3e5fb in ThreadWeaver::Thread::run (this=0x26632b0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f1c9bd15025 in QThreadPrivate::start (arg=0x26632b0) at thread/qthread_unix.cpp:331
#8  0x00007f1c9ba84f05 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f1c9a81e10d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f1c53fff700 (LWP 8722)):
#0  0x00007f1c9ba88e6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f1c9bd154bb in wait (time=18446744073709551615, this=0x11b26f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11773e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f1c8fb3d104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x12044d0, th=0x286f1e0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f1c8fb3f6ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x1184ff0, th=0x286f1e0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f1c8fb3e56f in ThreadWeaver::ThreadRunHelper::run (this=0x7f1c53ffee40, parent=0x12044d0, th=0x286f1e0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f1c8fb3e5fb in ThreadWeaver::Thread::run (this=0x286f1e0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f1c9bd15025 in QThreadPrivate::start (arg=0x286f1e0) at thread/qthread_unix.cpp:331
#8  0x00007f1c9ba84f05 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f1c9a81e10d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f1c537fe700 (LWP 8723)):
#0  0x00007f1c9ba88e6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f1c9bd154bb in wait (time=18446744073709551615, this=0x11b26f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11773e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f1c8fb3d104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x12044d0, th=0x2664990) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f1c8fb3f6ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x1184ff0, th=0x2664990) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f1c8fb3e56f in ThreadWeaver::ThreadRunHelper::run (this=0x7f1c537fde40, parent=0x12044d0, th=0x2664990) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f1c8fb3e5fb in ThreadWeaver::Thread::run (this=0x2664990) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f1c9bd15025 in QThreadPrivate::start (arg=0x2664990) at thread/qthread_unix.cpp:331
#8  0x00007f1c9ba84f05 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f1c9a81e10d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f1c52ffd700 (LWP 8724)):
#0  0x00007f1c9ba88e6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f1c9bd154bb in wait (time=18446744073709551615, this=0x11b26f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11773e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f1c8fb3d104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x12044d0, th=0x2883170) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f1c8fb3f6ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x1184ff0, th=0x2883170) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f1c8fb3e56f in ThreadWeaver::ThreadRunHelper::run (this=0x7f1c52ffce40, parent=0x12044d0, th=0x2883170) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f1c8fb3e5fb in ThreadWeaver::Thread::run (this=0x2883170) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f1c9bd15025 in QThreadPrivate::start (arg=0x2883170) at thread/qthread_unix.cpp:331
#8  0x00007f1c9ba84f05 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f1c9a81e10d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f1c527fc700 (LWP 8725)):
#0  0x00007f1c9ba88e6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f1c9bd154bb in wait (time=18446744073709551615, this=0x11b26f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11773e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f1c8fb3d104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x12044d0, th=0x2712fc0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f1c8fb3f6ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x1184ff0, th=0x2712fc0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f1c8fb3e56f in ThreadWeaver::ThreadRunHelper::run (this=0x7f1c527fbe40, parent=0x12044d0, th=0x2712fc0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f1c8fb3e5fb in ThreadWeaver::Thread::run (this=0x2712fc0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f1c9bd15025 in QThreadPrivate::start (arg=0x2712fc0) at thread/qthread_unix.cpp:331
#8  0x00007f1c9ba84f05 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f1c9a81e10d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f1c51ffb700 (LWP 8726)):
#0  0x00007f1c9ba88e6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f1c9bd154bb in wait (time=18446744073709551615, this=0x11b26f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11773e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f1c8fb3d104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x12044d0, th=0x24d12e0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f1c8fb3f6ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x1184ff0, th=0x24d12e0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f1c8fb3e56f in ThreadWeaver::ThreadRunHelper::run (this=0x7f1c51ffae40, parent=0x12044d0, th=0x24d12e0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f1c8fb3e5fb in ThreadWeaver::Thread::run (this=0x24d12e0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f1c9bd15025 in QThreadPrivate::start (arg=0x24d12e0) at thread/qthread_unix.cpp:331
#8  0x00007f1c9ba84f05 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f1c9a81e10d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f1c9d1ad760 (LWP 1850)):
[KCrash Handler]
#6  0x00007f1c9ba608d0 in vtable for QGraphicsLayoutItem () from /usr/lib64/libQtGui.so.4
#7  0x00007f1c81c2ccc6 in TaskGroupItem::~TaskGroupItem (this=0x282c590, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007f1c81c2cd79 in TaskGroupItem::~TaskGroupItem (this=0x282c590, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#9  0x00007f1c9be12188 in QObject::event (this=0x282c590, e=<optimized out>) at kernel/qobject.cpp:1209
#10 0x00007f1c9b5c731b in QGraphicsWidget::event (this=0x282c590, event=0x26ec790) at graphicsview/qgraphicswidget.cpp:1455
#11 0x00007f1c9afadc34 in notify_helper (e=0x26ec790, receiver=0x282c590, this=0x6f1c30) at kernel/qapplication.cpp:4481
#12 QApplicationPrivate::notify_helper (this=0x6f1c30, receiver=0x282c590, e=0x26ec790) at kernel/qapplication.cpp:4453
#13 0x00007f1c9afb2ac1 in QApplication::notify (this=0x6eb090, receiver=0x282c590, e=0x26ec790) at kernel/qapplication.cpp:4360
#14 0x00007f1c9cb8de36 in KApplication::notify (this=0x6eb090, receiver=0x282c590, event=0x26ec790) at /usr/src/debug/kdelibs-4.7.2/kdeui/kernel/kapplication.cpp:311
#15 0x00007f1c9bdfb82c in QCoreApplication::notifyInternal (this=0x6eb090, receiver=0x282c590, event=0x26ec790) at kernel/qcoreapplication.cpp:787
#16 0x00007f1c9bdfec08 in sendEvent (event=0x26ec790, receiver=0x282c590) at kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x615800) at kernel/qcoreapplication.cpp:1428
#18 0x00007f1c9bdfee2e in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#19 0x00007f1c8a6bb773 in kdemain (argc=1, argv=0x615430) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/shell/main.cpp:120
#20 0x0000000000408897 in _start ()

This bug may be a duplicate of or related to bug 304345.

Possible duplicates by query: bug 304345, bug 300123, bug 296444, bug 292424, bug 290097.

Reported using DrKonqi
Comment 1 Jekyll Wu 2012-11-09 11:58:43 UTC 
fixed in KDE SC 4.7.4

KDE SC 4.7.2 is outdated. Please upgrade your KDE installation .

*** This bug has been marked as a duplicate of bug 275286 ***