[Bug 283988] New: Akregator crashed when i tried to close a tab

Hrvoje Senjan hrvoje.senjan at gmail.com
Fri Oct 14 13:58:13 BST 2011 

https://bugs.kde.org/show_bug.cgi?id=283988

           Summary: Akregator crashed when i tried to close a tab
           Product: akregator
           Version: 4.7.2
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: kdepim-bugs at kde.org
        ReportedBy: hrvoje.senjan at gmail.com


Application: akregator (4.7.2)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic x86_64
Distribution: Ubuntu precise (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
Opened a news feed in a new tab (KDE's 15th aniversary news on dot.kde ;) ),
and when i tried to close it , akregator crashed. This usually doesn't happen,
altough i check the feeds in a regular browser.

-- Backtrace:
Application: Akregator (akregator), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f61f8eb97a0 (LWP 2275))]

Thread 4 (Thread 0x7f61d771d700 (LWP 2283)):
#0  __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized
out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x19d4ae8) at pthread_mutex_unlock.c:290
#2  0x00007f61f0c4af3f in g_main_context_prepare () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f61f0c4bdfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f61f0c4c429 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f61f6656f3e in QEventDispatcherGlib::processEvents (this=0x17167e0,
flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f61f662acf2 in QEventLoop::processEvents (this=<optimized out>,
flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f61f662aef7 in QEventLoop::exec (this=0x7f61d771cdb0, flags=...) at
kernel/qeventloop.cpp:201
#8  0x00007f61f654227f in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:498
#9  0x00007f61f660dcbf in QInotifyFileSystemWatcherEngine::run (this=0x19d3c30)
at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f61f6544d05 in QThreadPrivate::start (arg=0x19d3c30) at
thread/qthread_unix.cpp:331
#11 0x00007f61f111defc in start_thread (arg=0x7f61d771d700) at
pthread_create.c:304
#12 0x00007f61f5a7189d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f61d5bd2700 (LWP 10556)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f61ddbe6c2c in WTF::TCMalloc_PageHeap::scavengerThread
(this=0x7f61de59d220) at wtf/FastMalloc.cpp:2495
#2  0x00007f61ddbe6d59 in WTF::TCMalloc_PageHeap::runScavengerThread
(context=<optimized out>) at wtf/FastMalloc.cpp:1618
#3  0x00007f61f111defc in start_thread (arg=0x7f61d5bd2700) at
pthread_create.c:304
#4  0x00007f61f5a7189d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f61cffff700 (LWP 10557)):
#0  0x00007f61f1120034 in __pthread_mutex_lock (mutex=0x2160168) at
pthread_mutex_lock.c:61
#1  0x00007f61f0c4b023 in g_main_context_prepare () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f61f0c4bdfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f61f0c4c429 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f61f6656f3e in QEventDispatcherGlib::processEvents (this=0x233f360,
flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f61f662acf2 in QEventLoop::processEvents (this=<optimized out>,
flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f61f662aef7 in QEventLoop::exec (this=0x7f61cfffede0, flags=...) at
kernel/qeventloop.cpp:201
#7  0x00007f61f654227f in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:498
#8  0x00007f61f6544d05 in QThreadPrivate::start (arg=0x2263e70) at
thread/qthread_unix.cpp:331
#9  0x00007f61f111defc in start_thread (arg=0x7f61cffff700) at
pthread_create.c:304
#10 0x00007f61f5a7189d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f61f8eb97a0 (LWP 2275)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007f61f8ada7fe in KParts::StatusBarExtension::statusBar
(this=0x17bbe80) at ../../kparts/statusbarextension.cpp:149
#8  0x00007f61f8adad04 in KParts::StatusBarExtension::~StatusBarExtension
(this=0x17bbe80, __in_chrg=<optimized out>) at
../../kparts/statusbarextension.cpp:99
#9  0x00007f61f8adb0b9 in KParts::StatusBarExtension::~StatusBarExtension
(this=0x17bbe80, __in_chrg=<optimized out>) at
../../kparts/statusbarextension.cpp:110
#10 0x00007f61f663dd75 in QObjectPrivate::deleteChildren (this=0x1bd0e40) at
kernel/qobject.cpp:1955
#11 0x00007f61f6643349 in QObject::~QObject (this=0x1bd0f10,
__in_chrg=<optimized out>) at kernel/qobject.cpp:946
#12 0x00007f61f8abf698 in KParts::Part::~Part (this=0x1bd0f10,
__vtt_parm=0x7f61d5191e50, __in_chrg=<optimized out>) at
../../kparts/part.cpp:190
#13 0x00007f61d4f5d450 in KWebKitPart::~KWebKitPart() () from
/usr/lib/libkwebkit.so.1
#14 0x00007f61d4f5d4ae in KWebKitPart::~KWebKitPart() () from
/usr/lib/libkwebkit.so.1
#15 0x00007f61f83c7750 in Akregator::BrowserFrame::Private::~Private
(this=0x1fbd9f0, __in_chrg=<optimized out>) at
../../../akregator/src/browserframe_p.cpp:50
#16 0x00007f61f83c7849 in Akregator::BrowserFrame::Private::~Private
(this=0x1fbd9f0, __in_chrg=<optimized out>) at
../../../akregator/src/browserframe_p.cpp:51
#17 0x00007f61f83c429a in Akregator::BrowserFrame::~BrowserFrame
(this=0x20ac4b0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at
../../../akregator/src/browserframe.cpp:63
#18 0x00007f61f83c4309 in Akregator::BrowserFrame::~BrowserFrame
(this=0x20ac4b0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at
../../../akregator/src/browserframe.cpp:64
#19 0x00007f61f83c21ca in Akregator::FrameManager::slotRemoveFrame
(this=0x18326d0, id=1) at ../../../akregator/src/framemanager.cpp:108
#20 0x00007f61f83c323c in Akregator::FrameManager::qt_metacall (this=0x18326d0,
_c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff351493d0) at
./framemanager.moc:155
#21 0x00007f61f663eeba in QMetaObject::activate (sender=0x18543b0, m=<optimized
out>, local_signal_index=<optimized out>, argv=0x7fff351493d0) at
kernel/qobject.cpp:3278
#22 0x00007f61dfdabda1 in Akregator::TabWidget::signalRemoveFrameRequest
(this=<optimized out>, _t1=1) at ./tabwidget.moc:153
#23 0x00007f61dfdac0d8 in Akregator::TabWidget::slotCloseTab (this=0x18543b0)
at ../../../akregator/src/tabwidget.cpp:393
#24 0x00007f61dfdada1d in Akregator::TabWidget::qt_metacall (this=0x18543b0,
_c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff35149510) at
./tabwidget.moc:131
#25 0x00007f61f663eeba in QMetaObject::activate (sender=0x18592f0, m=<optimized
out>, local_signal_index=<optimized out>, argv=0x7fff35149510) at
kernel/qobject.cpp:3278
#26 0x00007f61f7025b62 in QAction::triggered (this=<optimized out>, _t1=false)
at .moc/release-shared/moc_qaction.cpp:263
#27 0x00007f61f7025d4f in QAction::activate (this=0x18592f0, event=<optimized
out>) at kernel/qaction.cpp:1257
#28 0x00007f61f7460609 in QMenuPrivate::activateCausedStack (this=0x19a1570,
causedStack=..., action=0x18592f0, action_e=QAction::Trigger, self=true) at
widgets/qmenu.cpp:1005
#29 0x00007f61f7466252 in QMenuPrivate::activateAction (this=0x19a1570,
action=0x18592f0, action_e=QAction::Trigger, self=true) at
widgets/qmenu.cpp:1097
#30 0x00007f61f7e01cc0 in KMenu::mouseReleaseEvent (this=0x19a0810,
e=0x7fff35149f20) at ../../kdeui/widgets/kmenu.cpp:464
#31 0x00007f61f707cc9a in QWidget::event (this=0x19a0810, event=0x7fff35149f20)
at kernel/qwidget.cpp:8295
#32 0x00007f61f74677fb in QMenu::event (this=0x19a0810, e=0x7fff35149f20) at
widgets/qmenu.cpp:2405
#33 0x00007f61f702c424 in notify_helper (e=0x7fff35149f20, receiver=0x19a0810,
this=0x1484a30) at kernel/qapplication.cpp:4486
#34 QApplicationPrivate::notify_helper (this=0x1484a30, receiver=0x19a0810,
e=0x7fff35149f20) at kernel/qapplication.cpp:4458
#35 0x00007f61f7031c6b in QApplication::notify (this=<optimized out>,
receiver=0x19a0810, e=0x7fff35149f20) at kernel/qapplication.cpp:4047
#36 0x00007f61f7d40136 in KApplication::notify (this=0x7fff3514c0a0,
receiver=0x19a0810, event=0x7fff35149f20) at
../../kdeui/kernel/kapplication.cpp:311
#37 0x00007f61f662bafc in QCoreApplication::notifyInternal
(this=0x7fff3514c0a0, receiver=0x19a0810, event=0x7fff35149f20) at
kernel/qcoreapplication.cpp:787
#38 0x00007f61f702d3f2 in sendEvent (event=<optimized out>, receiver=<optimized
out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#39 QApplicationPrivate::sendMouseEvent (receiver=0x19a0810,
event=0x7fff35149f20, alienWidget=0x0, nativeWidget=0x19a0810, buttonDown=0x0,
lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#40 0x00007f61f70ad001 in QETWidget::translateMouseEvent (this=0x19a0810,
event=<optimized out>) at kernel/qapplication_x11.cpp:4502
#41 0x00007f61f70ab8be in QApplication::x11ProcessEvent (this=0x7fff3514c0a0,
event=0x7fff3514a740) at kernel/qapplication_x11.cpp:3690
#42 0x00007f61f70d4412 in x11EventSourceDispatch (s=0x1482240, callback=0,
user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#43 0x00007f61f0c4ba5d in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f61f0c4c258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f61f0c4c429 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f61f6656ed6 in QEventDispatcherGlib::processEvents (this=0x1450170,
flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#47 0x00007f61f70d407e in QGuiEventDispatcherGlib::processEvents
(this=<optimized out>, flags=<optimized out>) at
kernel/qguieventdispatcher_glib.cpp:204
#48 0x00007f61f662acf2 in QEventLoop::processEvents (this=<optimized out>,
flags=...) at kernel/qeventloop.cpp:149
#49 0x00007f61f662aef7 in QEventLoop::exec (this=0x7fff3514ab10, flags=...) at
kernel/qeventloop.cpp:201
#50 0x00007f61f7463711 in QMenu::exec (this=<optimized out>, p=..., action=0x0)
at widgets/qmenu.cpp:2049
#51 0x00007f61dfdab689 in Akregator::TabWidget::contextMenu (this=0x18543b0,
i=<optimized out>, p=...) at ../../../akregator/src/tabwidget.cpp:355
#52 0x00007f61f7e220cd in KTabWidget::qt_metacall (this=0x18543b0,
_c=QMetaObject::InvokeMetaMethod, _id=23, _a=0x7fff3514acc0) at
./ktabwidget.moc:156
#53 0x00007f61dfdad7b0 in Akregator::TabWidget::qt_metacall (this=0x18543b0,
_c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff3514acc0) at
./tabwidget.moc:107
#54 0x00007f61f663eeba in QMetaObject::activate (sender=0x1856490, m=<optimized
out>, local_signal_index=<optimized out>, argv=0x7fff3514acc0) at
kernel/qobject.cpp:3278
#55 0x00007f61f7e1f4f3 in KTabBar::contextMenu (this=<optimized out>, _t1=1,
_t2=<optimized out>) at ./ktabbar.moc:124
#56 0x00007f61f7e1f644 in KTabBar::mousePressEvent (this=0x1856490,
event=<optimized out>) at ../../kdeui/widgets/ktabbar.cpp:103
#57 0x00007f61f707cf79 in QWidget::event (this=0x1856490, event=0x7fff3514b460)
at kernel/qwidget.cpp:8291
#58 0x00007f61f7488e96 in QTabBar::event (this=0x1856490, event=0x7fff3514b460)
at widgets/qtabbar.cpp:1509
#59 0x00007f61f702c424 in notify_helper (e=0x7fff3514b460, receiver=0x1856490,
this=0x1484a30) at kernel/qapplication.cpp:4486
#60 QApplicationPrivate::notify_helper (this=0x1484a30, receiver=0x1856490,
e=0x7fff3514b460) at kernel/qapplication.cpp:4458
#61 0x00007f61f7031c6b in QApplication::notify (this=<optimized out>,
receiver=0x1856490, e=0x7fff3514b460) at kernel/qapplication.cpp:4047
#62 0x00007f61f7d40136 in KApplication::notify (this=0x7fff3514c0a0,
receiver=0x1856490, event=0x7fff3514b460) at
../../kdeui/kernel/kapplication.cpp:311
#63 0x00007f61f662bafc in QCoreApplication::notifyInternal
(this=0x7fff3514c0a0, receiver=0x1856490, event=0x7fff3514b460) at
kernel/qcoreapplication.cpp:787
#64 0x00007f61f702d3f2 in sendEvent (event=<optimized out>, receiver=<optimized
out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#65 QApplicationPrivate::sendMouseEvent (receiver=0x1856490,
event=0x7fff3514b460, alienWidget=0x1856490, nativeWidget=0x1716920,
buttonDown=0x1856490, lastMouseReceiver=..., spontaneous=true) at
kernel/qapplication.cpp:3146
#66 0x00007f61f70ac945 in QETWidget::translateMouseEvent (this=0x1716920,
event=<optimized out>) at kernel/qapplication_x11.cpp:4568
#67 0x00007f61f70ab8be in QApplication::x11ProcessEvent (this=0x7fff3514c0a0,
event=0x7fff3514bc80) at kernel/qapplication_x11.cpp:3690
#68 0x00007f61f70d4412 in x11EventSourceDispatch (s=0x1482240, callback=0,
user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#69 0x00007f61f0c4ba5d in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#70 0x00007f61f0c4c258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#71 0x00007f61f0c4c429 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#72 0x00007f61f6656ed6 in QEventDispatcherGlib::processEvents (this=0x1450170,
flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#73 0x00007f61f70d407e in QGuiEventDispatcherGlib::processEvents
(this=<optimized out>, flags=<optimized out>) at
kernel/qguieventdispatcher_glib.cpp:204
#74 0x00007f61f662acf2 in QEventLoop::processEvents (this=<optimized out>,
flags=...) at kernel/qeventloop.cpp:149
#75 0x00007f61f662aef7 in QEventLoop::exec (this=0x7fff3514c050, flags=...) at
kernel/qeventloop.cpp:201
#76 0x00007f61f662f789 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1064
#77 0x0000000000407dac in main (argc=<optimized out>, argv=<optimized out>) at
../../../akregator/src/main.cpp:103

Reported using DrKonqi

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