[Bug 193176] New: Plasma Crash when changing wallpaper

Alexander Shenoy alex.shenoy at gmail.com
Tue May 19 00:58:32 BST 2009 

https://bugs.kde.org/show_bug.cgi?id=193176

           Summary: Plasma Crash when changing wallpaper
           Product: kde
           Version: unspecified
          Platform: Unlisted Binaries
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: unassigned-bugs at kde.org
        ReportedBy: alex.shenoy at gmail.com


Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.85 (KDE 4.2.85 (KDE 4.3 Beta1))
Qt Version: 4.5.1
Operating System: Linux 2.6.28-12-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
To recreate the crash: Just open the Desktop Settings dialog and then click the
Browse button to browse for wallpaper on your hard drive. Plasma hangs and
after a few minutes you have to close the dialog. The browse dialog never shows
up. Even after closing, plasma is still not responsive. After a few minutes, I
used kquitapp to quit plasma, and thats when the crash notification came up.

I am running this on Kubuntu 9.04 with KDE 4.3 Beta1. 

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 0 (LWP 3619)]

Thread 4 (Thread 0xa7d21b90 (LWP 3627)):
#0  0xb7fe7430 in __kernel_vsyscall ()
#1  0xb50b80e5 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb63082ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb64ec5b2 in QWaitCondition::wait (this=0x9b7d968, mutex=0x9b7d964,
time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb794aae2 in QHostInfoAgent::run (this=0x9b7d958) at
kernel/qhostinfo.cpp:260
#5  0xb64eb56e in QThreadPrivate::start (arg=0x9b7d958) at
thread/qthread_unix.cpp:189
#6  0xb50b44ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb62f949e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (Thread 0xa3bb5b90 (LWP 3628)):
#0  0xb4e6e0ac in clock_gettime () from /lib/tls/i686/cmov/librt.so.1
#1  0xb660ce2b in QTimerInfoList::getTime (this=0x9c9463c, t=@0x9c94660) at
kernel/qeventdispatcher_unix.cpp:339
#2  0xb660d001 in QTimerInfoList::updateCurrentTime (this=0x9c9463c) at
kernel/qeventdispatcher_unix.cpp:297
#3  0xb660b2f3 in timerSourceCheck (source=0x9c94608) at
kernel/qeventdispatcher_glib.cpp:156
#4  0xb4eb56f6 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#5  0xb4eb5fdd in ?? () from /usr/lib/libglib-2.0.so.0
#6  0xb4eb6268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#7  0xb660b1f7 in QEventDispatcherGlib::processEvents (this=0x9c6eb90, flags={i
= -1548010280}) at kernel/qeventdispatcher_glib.cpp:326
#8  0xb65dddda in QEventLoop::processEvents (this=0xa3bb3d54, flags={i =
-1548010216}) at kernel/qeventloop.cpp:149
#9  0xb65de21a in QEventLoop::exec (this=0xa3bb3d54, flags={i = -1548010148})
at kernel/qeventloop.cpp:200
#10 0xb7b4b8ab in KIO::NetAccess::enter_loop (this=0xa3bb3dc0) at
/build/buildd/kde4libs-4.2.85/kio/kio/netaccess.cpp:502
#11 0xb7b4bf6f in KIO::NetAccess::synchronousRunInternal (this=0xa3bb3dc0,
job=0xa9694d0, window=0x0, data=0xa3bb3e44, finalURL=0x0, metaData=0x0)
    at /build/buildd/kde4libs-4.2.85/kio/kio/netaccess.cpp:487
#12 0xb7b4c621 in KIO::NetAccess::synchronousRun (job=0xa9694d0, window=0x0,
data=0xa3bb3e44, finalURL=0x0, metaData=0x0) at
/build/buildd/kde4libs-4.2.85/kio/kio/netaccess.cpp:277
#13 0xa7f13c6f in ?? () from /usr/lib/kde4/plasma_applet_cwp.so
#14 0xa7f1cd92 in ?? () from /usr/lib/kde4/plasma_applet_cwp.so
#15 0xa7f20fa0 in ?? () from /usr/lib/kde4/plasma_applet_cwp.so
#16 0xb64eb56e in QThreadPrivate::start (arg=0xa9694d0) at
thread/qthread_unix.cpp:189
#17 0xb50b44ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#18 0xb62f949e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xa29c6b90 (LWP 4631)):
#0  0xb7fe7430 in __kernel_vsyscall ()
#1  0xb50b8412 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb6308344 in pthread_cond_timedwait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb64ec58c in QWaitCondition::wait (this=0xa520b48, mutex=0xa520b44,
time=30000) at thread/qwaitcondition_unix.cpp:85
#4  0xb64e1ac6 in QThreadPoolThread::run (this=0x9a78370) at
concurrent/qthreadpool.cpp:140
#5  0xb64eb56e in QThreadPrivate::start (arg=0x9a78370) at
thread/qthread_unix.cpp:189
#6  0xb50b44ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb62f949e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb3ce3730 (LWP 3619)):
[KCrash Handler]
#6  0x243489ff in ?? ()
#7  0xa335244b in KFileModule::createFileWidget (this=0xa774e88,
startDir=@0xbfb033fc, parent=0x9baec78) at
/build/buildd/kde4libs-4.2.85/kfile/kfilemodule.cpp:36
#8  0xb7bc1a6f in KFileDialog (this=0x9baec78, startDir=@0xbfb033fc,
filter=@0xbfb03408, parent=0xaa53880, customWidget=0x0) at
/build/buildd/kde4libs-4.2.85/kio/kfile/kfiledialog.cpp:238
#9  0xa81d2d7e in Image::showFileDialog (this=0xa86a4f8) at
/build/buildd/kdebase-workspace-4.2.85/plasma/wallpapers/image/image.cpp:478
#10 0xa81d6833 in Image::qt_metacall (this=0xa86a4f8,
_c=QMetaObject::InvokeMetaMethod, _id=11, _a=0xbfb0352c)
    at
/build/buildd/kdebase-workspace-4.2.85/obj-i486-linux-gnu/plasma/wallpapers/image/image.moc:105
#11 0xb65f5a58 in QMetaObject::activate (sender=0xaaace80,
from_signal_index=29, to_signal_index=30, argv=0xbfb0352c) at
kernel/qobject.cpp:3120
#12 0xb65f5e90 in QMetaObject::activate (sender=0xaaace80, m=0xb710f1e4,
from_local_signal_index=2, to_local_signal_index=3, argv=0xbfb0352c) at
kernel/qobject.cpp:3214
#13 0xb6f26c81 in QAbstractButton::clicked (this=0xaaace80, _t1=false) at
.moc/release-shared/moc_qabstractbutton.cpp:200
#14 0xb6c4f979 in QAbstractButtonPrivate::emitClicked (this=0xaaacea0) at
widgets/qabstractbutton.cpp:543
#15 0xb6c515b4 in QAbstractButtonPrivate::click (this=0xaaacea0) at
widgets/qabstractbutton.cpp:536
#16 0xb6c51846 in QAbstractButton::mouseReleaseEvent (this=0xaaace80,
e=0xbfb03b28) at widgets/qabstractbutton.cpp:1115
#17 0xb6d3920c in QToolButton::mouseReleaseEvent (this=0xaaace80, e=0xbfb03b28)
at widgets/qtoolbutton.cpp:709
#18 0xb68c18c3 in QWidget::event (this=0xaaace80, event=0xbfb03b28) at
kernel/qwidget.cpp:7521
#19 0xb6c4f81e in QAbstractButton::event (this=0xaaace80, e=0xbfb03b28) at
widgets/qabstractbutton.cpp:1077
#20 0xb6d3bc3a in QToolButton::event (this=0xaaace80, event=0xbfb03b28) at
widgets/qtoolbutton.cpp:1151
#21 0xb686abcc in QApplicationPrivate::notify_helper (this=0x9466018,
receiver=0xaaace80, e=0xbfb03b28) at kernel/qapplication.cpp:4057
#22 0xb6873851 in QApplication::notify (this=0x9458490, receiver=0xaaace80,
e=0xbfb03b28) at kernel/qapplication.cpp:3759
#23 0xb76ccc9d in KApplication::notify (this=0x9458490, receiver=0xaaace80,
event=0xbfb03b28) at
/build/buildd/kde4libs-4.2.85/kdeui/kernel/kapplication.cpp:307
#24 0xb65df7ab in QCoreApplication::notifyInternal (this=0x9458490,
receiver=0xaaace80, event=0xbfb03b28) at kernel/qcoreapplication.cpp:610
#25 0xb68728be in QApplicationPrivate::sendMouseEvent (receiver=0xaaace80,
event=0xbfb03b28, alienWidget=0xaaace80, nativeWidget=0xa806400,
buttonDown=0xb7116aa0, lastMouseReceiver=@0xb7116aa4)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#26 0xb68e2aee in QETWidget::translateMouseEvent (this=0xa806400,
event=0xbfb051bc) at kernel/qapplication_x11.cpp:4448
#27 0xb68e1ead in QApplication::x11ProcessEvent (this=0x9458490,
event=0xbfb051bc) at kernel/qapplication_x11.cpp:3444
#28 0xb690d06a in x11EventSourceDispatch (s=0x9468a70, callback=0,
user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#29 0xb4eb2b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#30 0xb4eb60eb in ?? () from /usr/lib/libglib-2.0.so.0
#31 0xb4eb6268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#32 0xb660b1d8 in QEventDispatcherGlib::processEvents (this=0x945f2a8, flags={i
= -1078963336}) at kernel/qeventdispatcher_glib.cpp:324
#33 0xb690c765 in QGuiEventDispatcherGlib::processEvents (this=0x945f2a8,
flags={i = -1078963288}) at kernel/qguieventdispatcher_glib.cpp:202
#34 0xb65dddda in QEventLoop::processEvents (this=0xbfb05420, flags={i =
-1078963224}) at kernel/qeventloop.cpp:149
#35 0xb65de21a in QEventLoop::exec (this=0xbfb05420, flags={i = -1078963160})
at kernel/qeventloop.cpp:200
#36 0xb65e06c9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#37 0xb686aa47 in QApplication::exec () at kernel/qapplication.cpp:3526
#38 0xb7f89290 in kdemain (argc=1, argv=0xbfb055d4) at
/build/buildd/kdebase-workspace-4.2.85/plasma/shells/desktop/main.cpp:50
#39 0x08048712 in main (argc=173855152, argv=0x0) at
/build/buildd/kdebase-workspace-4.2.85/obj-i486-linux-gnu/plasma/shells/desktop/plasma-desktop_dummy.cpp:3

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