[Bug 167741] Threading in kmail doesn't work and sometimes crashes kmail/kontact

[Dominik Tritscher]

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http://bugs.kde.org/show_bug.cgi?id=167741         
dominik.tritscher gmx de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
      everconfirmed|0                           |1



------- Additional Comments From dominik.tritscher gmx de  2008-07-30 15:50 -------
I can confirm that behaviour with same software version. I couldn't find a cause why this happens sometimes and sometimes not.
Here comes the backtrace:

Application: Kontact (kontact), signal SIGSEGV
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 0xb4e41940 (LWP 6986)]
[New Thread 0xb0c0cb90 (LWP 6996)]
[KCrash handler]
#6  0xb7411320 in ?? () from /usr/lib/libQtGui.so.4
#7  0xb7405f9a in ?? () from /usr/lib/libQtGui.so.4
#8  0xb7406405 in QTreeView::rowsAboutToBeRemoved ()
   from /usr/lib/libQtGui.so.4
#9  0xb73cb99a in QAbstractItemView::qt_metacall ()
   from /usr/lib/libQtGui.so.4
#10 0xb740e3ca in QTreeView::qt_metacall () from /usr/lib/libQtGui.so.4
#11 0xb744587a in QTreeWidget::qt_metacall () from /usr/lib/libQtGui.so.4
#12 0xb7e9ba5a in KPIM::TreeWidget::qt_metacall ()
   from /usr/lib/kde4/lib/libkdepim.so.4
#13 0xb1c59fda in ?? () from /usr/lib/kde4/lib/libkmailprivate.so.4
#14 0xb784e4f9 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#15 0xb784ebc2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#16 0xb788b03f in QAbstractItemModel::rowsAboutToBeRemoved ()
   from /usr/lib/libQtCore.so.4
#17 0xb7831d36 in QAbstractItemModel::beginRemoveRows ()
   from /usr/lib/libQtCore.so.4
#18 0xb743b299 in ?? () from /usr/lib/libQtGui.so.4
#19 0xb743e30a in QTreeWidgetItem::takeChild () from /usr/lib/libQtGui.so.4
#20 0xb1c58167 in ?? () from /usr/lib/kde4/lib/libkmailprivate.so.4
#21 0xb1c88701 in ?? () from /usr/lib/kde4/lib/libkmailprivate.so.4
#22 0xb1c8816f in ?? () from /usr/lib/kde4/lib/libkmailprivate.so.4
#23 0xb1c8864f in ?? () from /usr/lib/kde4/lib/libkmailprivate.so.4
#24 0xb1b43598 in ?? () from /usr/lib/kde4/lib/libkmailprivate.so.4
#25 0xb1b3a749 in ?? () from /usr/lib/kde4/lib/libkmailprivate.so.4
#26 0xb1b3a91e in ?? () from /usr/lib/kde4/lib/libkmailprivate.so.4
#27 0xb1b3ae5b in ?? () from /usr/lib/kde4/lib/libkmailprivate.so.4
#28 0xb1b34290 in ?? () from /usr/lib/kde4/lib/libkmailprivate.so.4
#29 0xb1b3dad4 in ?? () from /usr/lib/kde4/lib/libkmailprivate.so.4
#30 0xb1cca3ad in KMMainWidget::readConfig ()
   from /usr/lib/kde4/lib/libkmailprivate.so.4
#31 0xb1cae934 in KMMainWidget::slotConfigChanged ()
   from /usr/lib/kde4/lib/libkmailprivate.so.4
#32 0xb1ccd387 in KMMainWidget::qt_metacall ()
   from /usr/lib/kde4/lib/libkmailprivate.so.4
#33 0xb784e4f9 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#34 0xb784ebc2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#35 0xb1c0c037 in KMKernel::configChanged ()
   from /usr/lib/kde4/lib/libkmailprivate.so.4
#36 0xb1c0fd4a in KMKernel::slotConfigChanged ()
   from /usr/lib/kde4/lib/libkmailprivate.so.4
#37 0xb1c17c10 in KMKernel::qt_metacall ()
   from /usr/lib/kde4/lib/libkmailprivate.so.4
#38 0xb784e4f9 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#39 0xb784ebc2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#40 0xb68efff7 in KCMultiDialog::configCommitted (this=0x93e71b0)
    at /build/buildd/kde4libs-4.1.0/obj-i486-linux-gnu/kutils/kcmultidialog.moc:101
#41 0xb68f0685 in KCMultiDialogPrivate::apply (this=0x96098b0)
    at /build/buildd/kde4libs-4.1.0/kutils/kcmultidialog.cpp:212
#42 0xb68f20b2 in KCMultiDialog::qt_metacall (this=0x93e71b0, 
    _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xbf87e658)
    at /build/buildd/kde4libs-4.1.0/obj-i486-linux-gnu/kutils/kcmultidialog.moc:86
#43 0xb1a9357a in ?? () from /usr/lib/kde4/lib/libkmailprivate.so.4
#44 0xb784e4f9 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#45 0xb784ebc2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#46 0xb7c48e37 in KDialog::applyClicked (this=0x93e71b0)
    at /build/buildd/kde4libs-4.1.0/obj-i486-linux-gnu/kdeui/kdialog.moc:235
#47 0xb7c4a42a in KDialog::slotButtonClicked (this=0x93e71b0, button=8)
    at /build/buildd/kde4libs-4.1.0/kdeui/dialogs/kdialog.cpp:848
#48 0xb7c4c58a in KDialog::qt_metacall (this=0x93e71b0, 
    _c=QMetaObject::InvokeMetaMethod, _id=33, _a=0xbf87e87c)
    at /build/buildd/kde4libs-4.1.0/obj-i486-linux-gnu/kdeui/kdialog.moc:181
#49 0xb7d03b5a in KPageDialog::qt_metacall (this=0x93e71b0, 
    _c=QMetaObject::InvokeMetaMethod, _id=68, _a=0xbf87e87c)
    at /build/buildd/kde4libs-4.1.0/obj-i486-linux-gnu/kdeui/kpagedialog.moc:63
#50 0xb68f202a in KCMultiDialog::qt_metacall (this=0x93e71b0, 
    _c=QMetaObject::InvokeMetaMethod, _id=68, _a=0xbf87e87c)
    at /build/buildd/kde4libs-4.1.0/obj-i486-linux-gnu/kutils/kcmultidialog.moc:77
#51 0xb1a9357a in ?? () from /usr/lib/kde4/lib/libkmailprivate.so.4
#52 0xb784e4f9 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#53 0xb784ebc2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#54 0xb78527c3 in QSignalMapper::mapped () from /usr/lib/libQtCore.so.4
#55 0xb7852fcd in QSignalMapper::map () from /usr/lib/libQtCore.so.4
#56 0xb78531be in QSignalMapper::map () from /usr/lib/libQtCore.so.4
#57 0xb78532d7 in QSignalMapper::qt_metacall () from /usr/lib/libQtCore.so.4
#58 0xb784e4f9 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#59 0xb784e930 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#60 0xb74e7eb1 in QAbstractButton::clicked () from /usr/lib/libQtGui.so.4
#61 0xb7247f49 in ?? () from /usr/lib/libQtGui.so.4
#62 0xb72497e0 in ?? () from /usr/lib/libQtGui.so.4
#63 0xb7249a3b in QAbstractButton::mouseReleaseEvent ()
   from /usr/lib/libQtGui.so.4
#64 0xb6f614a4 in QWidget::event () from /usr/lib/libQtGui.so.4
#65 0xb7248aff in QAbstractButton::event () from /usr/lib/libQtGui.so.4
#66 0xb72ed932 in QPushButton::event () from /usr/lib/libQtGui.so.4
#67 0xb6f09c0c in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#68 0xb6f0ecd5 in QApplication::notify () from /usr/lib/libQtGui.so.4
#69 0xb7cd6ef3 in KApplication::notify (this=0xbf87f798, receiver=0x8a9d908, 
    event=0xbf87efcc)
    at /build/buildd/kde4libs-4.1.0/kdeui/kernel/kapplication.cpp:311
#70 0xb78396a9 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#71 0xb6f0be21 in QApplicationPrivate::sendMouseEvent ()
   from /usr/lib/libQtGui.so.4
#72 0xb6f75ccd in ?? () from /usr/lib/libQtGui.so.4
#73 0xb6f746b1 in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#74 0xb6f9d3ba in ?? () from /usr/lib/libQtGui.so.4
#75 0xb56f2bf8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#76 0xb56f5e5e in ?? () from /usr/lib/libglib-2.0.so.0
#77 0xb56f63ac in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#78 0xb7864f98 in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#79 0xb6f9d1b5 in ?? () from /usr/lib/libQtGui.so.4
#80 0xb783892d in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#81 0xb7838abd in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#82 0xb783ad3d in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#83 0xb6f09567 in QApplication::exec () from /usr/lib/libQtGui.so.4
#84 0x0804b326 in _start ()
#0  0xb7f8b410 in __kernel_vsyscall ()