[Bug 299691] New: akregator crash without user interaction with the window

Laurent Bonnaud laurent.bonnaud at inpg.fr
Wed May 9 17:56:34 BST 2012 

https://bugs.kde.org/show_bug.cgi?id=299691

            Bug ID: 299691
          Severity: crash
           Version: 4.8.3
          Priority: NOR
          Assignee: kdepim-bugs at kde.org
           Summary: akregator crash without user interaction with the
                    window
    Classification: Unclassified
                OS: Linux
          Reporter: laurent.bonnaud at inpg.fr
          Hardware: Ubuntu Packages
            Status: UNCONFIRMED
         Component: general
           Product: akregator

Application: akregator (4.8.3)
KDE Platform Version: 4.8.3 (4.8.3)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-23-generic-pae i686
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:

I was cycling through my virtual desktops and when I reached the desktop where
I have akregator running, it crashed. I did not click on its window.

-- Backtrace:
Application: Akregator (akregator), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb3468740 (LWP 27044))]

Thread 2 (Thread 0xb064fb40 (LWP 27046)):
#0  0xb774f424 in __kernel_vsyscall ()
#1  0xb5e96380 in __GI___poll (fds=0xafd023b0, nfds=3, timeout=-1) at
../sysdeps/unix/sysv/linux/poll.c:87
#2  0xb4770a3b in g_poll (fds=0xafd023b0, nfds=3, timeout=-1) at
/build/buildd/glib2.0-2.32.1/./glib/gpoll.c:132
#3  0xb476306e in g_main_context_poll (n_fds=3, fds=0xafd023b0,
timeout=<optimized out>, context=0xb0708790, priority=<optimized out>) at
/build/buildd/glib2.0-2.32.1/./glib/gmain.c:3417
#4  g_main_context_iterate (dispatch=1, block=-1267267056, context=0xb0708790,
self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3118
#5  g_main_context_iterate (context=0xb0708790, block=-1267267056, dispatch=1,
self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
#6  0xb476352b in g_main_loop_run (loop=0xb0708768) at
/build/buildd/glib2.0-2.32.1/./glib/gmain.c:3317
#7  0xb16380ea in gdbus_shared_thread_func (user_data=0xb0708778) at
/build/buildd/glib2.0-2.32.1/./gio/gdbusprivate.c:277
#8  0xb4786673 in g_thread_proxy (data=0xb0702bb0) at
/build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
#9  0xb4835d4c in start_thread (arg=0xb064fb40) at pthread_create.c:308
#10 0xb5ea4ace in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb3468740 (LWP 27044)):
[KCrash Handler]
#7  QGtkStyle::drawComplexControl (this=0x9323d88, control=QStyle::CC_ComboBox,
option=0xbfbc2788, painter=0xbfbc27e4, widget=0x958a498) at
styles/qgtkstyle.cpp:1422
#8  0xb6c0f7fa in drawComplexControl (opt=..., cc=QStyle::CC_ComboBox,
this=0xbfbc27e4) at
../../include/QtGui/../../src/gui/painting/qstylepainter.h:94
#9  QComboBox::paintEvent (this=0x958a498) at widgets/qcombobox.cpp:2807
#10 0xb6823152 in QWidget::event (this=0x958a498, event=0xbfbc2d84) at
kernel/qwidget.cpp:8508
#11 0xb6c1069e in QComboBox::event (this=0x958a498, event=0xbfbc2d84) at
widgets/qcombobox.cpp:2872
#12 0xb67c8ed4 in notify_helper (e=0xbfbc2d84, receiver=0x958a498,
this=0x92cbbe8) at kernel/qapplication.cpp:4559
#13 QApplicationPrivate::notify_helper (this=0x92cbbe8, receiver=0x958a498,
e=0xbfbc2d84) at kernel/qapplication.cpp:4531
#14 0xb67ce3a2 in QApplication::notify (this=0x92cbbe8, receiver=0x958a498,
e=0xbfbc2d84) at kernel/qapplication.cpp:4524
#15 0xb734db61 in KApplication::notify (this=0xbfbc548c, receiver=0x958a498,
event=0xbfbc2d84) at ../../kdeui/kernel/kapplication.cpp:311
#16 0xb625f97e in QCoreApplication::notifyInternal (this=0xbfbc548c,
receiver=0x958a498, event=0xbfbc2d84) at kernel/qcoreapplication.cpp:876
#17 0xb681eada in sendSpontaneousEvent (event=<optimized out>,
receiver=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#18 QWidgetPrivate::drawWidget (this=0x958f0b0, pdev=0x95f39c8, rgn=...,
offset=..., flags=4, sharedPainter=0x0, backingStore=0x9438d60) at
kernel/qwidget.cpp:5585
#19 0xb681f882 in QWidgetPrivate::paintSiblingsRecursive (this=0x958a1e0,
pdev=0x95f39c8, siblings=..., index=<optimized out>, rgn=..., offset=...,
flags=4, sharedPainter=0x0, backingStore=0x9438d60) at kernel/qwidget.cpp:5794
#20 0xb681e838 in QWidgetPrivate::drawWidget (this=0x958a1e0, pdev=0x95f39c8,
rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9438d60) at
kernel/qwidget.cpp:5638
#21 0xb681f882 in QWidgetPrivate::paintSiblingsRecursive (this=0x9589f40,
pdev=0x95f39c8, siblings=..., index=<optimized out>, rgn=..., offset=...,
flags=4, sharedPainter=0x0, backingStore=0x9438d60) at kernel/qwidget.cpp:5794
#22 0xb681f5ba in QWidgetPrivate::paintSiblingsRecursive (this=0x9589f40,
pdev=0x95f39c8, siblings=..., index=1, rgn=..., offset=..., flags=4,
sharedPainter=0x0, backingStore=0x9438d60) at kernel/qwidget.cpp:5781
#23 0xb681e838 in QWidgetPrivate::drawWidget (this=0x9589f40, pdev=0x95f39c8,
rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9438d60) at
kernel/qwidget.cpp:5638
#24 0xb681f882 in QWidgetPrivate::paintSiblingsRecursive (this=0x964d388,
pdev=0x95f39c8, siblings=..., index=<optimized out>, rgn=..., offset=...,
flags=4, sharedPainter=0x0, backingStore=0x9438d60) at kernel/qwidget.cpp:5794
#25 0xb681e838 in QWidgetPrivate::drawWidget (this=0x964d388, pdev=0x95f39c8,
rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9438d60) at
kernel/qwidget.cpp:5638
#26 0xb681f882 in QWidgetPrivate::paintSiblingsRecursive (this=0x9586718,
pdev=0x95f39c8, siblings=..., index=<optimized out>, rgn=..., offset=...,
flags=4, sharedPainter=0x0, backingStore=0x9438d60) at kernel/qwidget.cpp:5794
#27 0xb681e838 in QWidgetPrivate::drawWidget (this=0x9586718, pdev=0x95f39c8,
rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9438d60) at
kernel/qwidget.cpp:5638
#28 0xb681f882 in QWidgetPrivate::paintSiblingsRecursive (this=0x95860e0,
pdev=0x95f39c8, siblings=..., index=<optimized out>, rgn=..., offset=...,
flags=4, sharedPainter=0x0, backingStore=0x9438d60) at kernel/qwidget.cpp:5794
#29 0xb681e838 in QWidgetPrivate::drawWidget (this=0x95860e0, pdev=0x95f39c8,
rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9438d60) at
kernel/qwidget.cpp:5638
#30 0xb681f882 in QWidgetPrivate::paintSiblingsRecursive (this=0x957f750,
pdev=0x95f39c8, siblings=..., index=<optimized out>, rgn=..., offset=...,
flags=4, sharedPainter=0x0, backingStore=0x9438d60) at kernel/qwidget.cpp:5794
#31 0xb681f5ba in QWidgetPrivate::paintSiblingsRecursive (this=0x957f750,
pdev=0x95f39c8, siblings=..., index=0, rgn=..., offset=..., flags=4,
sharedPainter=0x0, backingStore=0x9438d60) at kernel/qwidget.cpp:5781
#32 0xb681f5ba in QWidgetPrivate::paintSiblingsRecursive (this=0x957f750,
pdev=0x95f39c8, siblings=..., index=2, rgn=..., offset=..., flags=4,
sharedPainter=0x0, backingStore=0x9438d60) at kernel/qwidget.cpp:5781
#33 0xb681e838 in QWidgetPrivate::drawWidget (this=0x957f750, pdev=0x95f39c8,
rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9438d60) at
kernel/qwidget.cpp:5638
#34 0xb681f882 in QWidgetPrivate::paintSiblingsRecursive (this=0x9572ee0,
pdev=0x95f39c8, siblings=..., index=<optimized out>, rgn=..., offset=...,
flags=4, sharedPainter=0x0, backingStore=0x9438d60) at kernel/qwidget.cpp:5794
#35 0xb681e838 in QWidgetPrivate::drawWidget (this=0x9572ee0, pdev=0x95f39c8,
rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9438d60) at
kernel/qwidget.cpp:5638
#36 0xb681f882 in QWidgetPrivate::paintSiblingsRecursive (this=0x947ba00,
pdev=0x95f39c8, siblings=..., index=<optimized out>, rgn=..., offset=...,
flags=4, sharedPainter=0x0, backingStore=0x9438d60) at kernel/qwidget.cpp:5794
#37 0xb681f5ba in QWidgetPrivate::paintSiblingsRecursive (this=0x947ba00,
pdev=0x95f39c8, siblings=..., index=22, rgn=..., offset=..., flags=4,
sharedPainter=0x0, backingStore=0x9438d60) at kernel/qwidget.cpp:5781
#38 0xb681e838 in QWidgetPrivate::drawWidget (this=0x947ba00, pdev=0x95f39c8,
rgn=..., offset=..., flags=5, sharedPainter=0x0, backingStore=0x9438d60) at
kernel/qwidget.cpp:5638
#39 0xb6a17dc0 in QWidgetBackingStore::sync (this=0x9438d60) at
painting/qbackingstore.cpp:1373
#40 0xb6a18187 in QWidgetBackingStore::sync (this=0x9438d60,
exposedWidget=0x9572e78, exposedRegion=...) at painting/qbackingstore.cpp:1161
#41 0xb6814904 in QWidgetPrivate::syncBackingStore (this=0x9572ee0, region=...)
at kernel/qwidget.cpp:1900
#42 0xb6854054 in QETWidget::translatePaintEvent (this=0x9572e78,
event=0xbfbc510c) at kernel/qapplication_x11.cpp:5584
#43 0xb6855208 in QApplication::x11ProcessEvent (this=0xbfbc548c,
event=0xbfbc510c) at kernel/qapplication_x11.cpp:3632
#44 0xb6881eac in x11EventSourceDispatch (s=0x92c2218, callback=0,
user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#45 0xb4762cda in g_main_dispatch (context=0x92cc388) at
/build/buildd/glib2.0-2.32.1/./glib/gmain.c:2515
#46 g_main_context_dispatch (context=0x92cc388) at
/build/buildd/glib2.0-2.32.1/./glib/gmain.c:3052
#47 0xb47630e5 in g_main_context_iterate (dispatch=1, block=-1267267056,
context=0x92cc388, self=<optimized out>) at
/build/buildd/glib2.0-2.32.1/./glib/gmain.c:3123
#48 g_main_context_iterate (context=0x92cc388, block=-1267267056, dispatch=1,
self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
#49 0xb47631c1 in g_main_context_iteration (context=0x92cc388, may_block=1) at
/build/buildd/glib2.0-2.32.1/./glib/gmain.c:3184
#50 0xb6292887 in QEventDispatcherGlib::processEvents (this=0x92c23e8,
flags=...) at kernel/qeventdispatcher_glib.cpp:424
#51 0xb6881aaa in QGuiEventDispatcherGlib::processEvents (this=0x92c23e8,
flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#52 0xb625e50d in QEventLoop::processEvents (this=0xbfbc5404, flags=...) at
kernel/qeventloop.cpp:149
#53 0xb625e7a9 in QEventLoop::exec (this=0xbfbc5404, flags=...) at
kernel/qeventloop.cpp:204
#54 0xb6263eba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#55 0xb67c6a74 in QApplication::exec () at kernel/qapplication.cpp:3820
#56 0x0804e26f in main (argc=<error reading variable: Cannot access memory at
address 0x0>, argv=<error reading variable: Cannot access memory at address
0x4>) at ../../../akregator/src/main.cpp:103

Possible duplicates by query: bug 262528.

Reported using DrKonqi

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