Application that crashed: kmail
Version of the application: 1.12.1
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.29.6-desktop586-2mnb i686
Distribution: "Mandriva Linux 2009.1"

What I was doing when the application crashed:
Just after having received all my mails from my mailboxes, I start quickly looking at them by clicking on each folders having unread mails.

At one moment, KMail crashes. It was obviously doing some background process at the moment, as there were a lot of disk activity and it was slow. And no other programs was using the disk intensively at the same moment.

Sorry to not being able to tell more!

 -- Backtrace:
Application: KMail (kmail), signal: Aborted
[Current thread is 1 (Thread 0xb398c6d0 (LWP 14380))]

Thread 2 (Thread 0xb017cb90 (LWP 18127)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb63074c1 in select () from /lib/i686/libc.so.6
#2  0xb6f7ce2c in ?? () from /usr/lib/libQtCore.so.4
#3  0xb6ea43e3 in ?? () from /usr/lib/libQtCore.so.4
#4  0xb61cb315 in start_thread () from /lib/i686/libpthread.so.0
#5  0xb630f25e in clone () from /lib/i686/libc.so.6

Thread 1 (Thread 0xb398c6d0 (LWP 14380)):
[KCrash Handler]
#6  0xffffe430 in __kernel_vsyscall ()
#7  0xb625cc00 in raise () from /lib/i686/libc.so.6
#8  0xb625e668 in abort () from /lib/i686/libc.so.6
#9  0xb6e9bd45 in qt_message_output () from /usr/lib/libQtCore.so.4
#10 0xb6e9be3c in qFatal () from /usr/lib/libQtCore.so.4
#11 0xb6e9beed in qt_assert_x () from /usr/lib/libQtCore.so.4
#12 0xb73cf957 in QVector<KMMsgBase*>::operator[] (this=0x9e451b8, i=319) at /usr/lib/qt4/include/QtCore/qvector.h:337
#13 0xb73f6cfa in KMFolderIndex::getMsgBase (this=0x9e45168, idx=319) at /usr/src/debug/kdepim-4.3.1/kmail/kmfolderindex.h:73
#14 0xb7369207 in FolderStorage::setStatus (this=0x9e45168, idx=319, status=@0xb7eb8b8, toggle=false) at /usr/src/debug/kdepim-4.3.1/kmail/folderstorage.cpp:1083
#15 0xb7369cc6 in FolderStorage::setStatus (this=0x9e45168, ids=@0xb8b89a4, status=@0xb7eb8b8, toggle=false) at /usr/src/debug/kdepim-4.3.1/kmail/folderstorage.cpp:1098
#16 0xb7344f0e in KMFolder::setStatus (this=0x9e468f0, ids=@0xb8b89a4, status=@0xb7eb8b8, toggle=<value optimized out>) at /usr/src/debug/kdepim-4.3.1/kmail/kmfolder.cpp:887
#17 0xb74c9267 in KMSetStatusCommand::execute (this=0xb7eb890) at /usr/src/debug/kdepim-4.3.1/kmail/kmcommands.cpp:1673
#18 0xb74d631c in KMCommand::slotPostTransfer (this=0xb7eb890, result=KMCommand::OK) at /usr/src/debug/kdepim-4.3.1/kmail/kmcommands.cpp:274
#19 0xb74d6415 in KMCommand::qt_metacall (this=0xb7eb890, _c=QMetaObject::InvokeMetaMethod, _id=5, _a=0xbfb4dca0) at /usr/src/debug/kdepim-4.3.1/build/kmail/kmcommands.moc:87
#20 0xb74d6d13 in KMSetStatusCommand::qt_metacall (this=0xb7eb890, _c=QMetaObject::InvokeMetaMethod, _id=9, _a=0xbfb4dca0) at /usr/src/debug/kdepim-4.3.1/build/kmail/kmcommands.moc:1360
#21 0xb6fb6925 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#22 0xb6fb7625 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#23 0xb74bc715 in KMCommand::messagesTransfered (this=0xb7eb890, _t1=KMCommand::OK) at /usr/src/debug/kdepim-4.3.1/build/kmail/kmcommands.moc:102
#24 0xb74d6096 in KMCommand::transferSelectedMsgs (this=0xb7eb890) at /usr/src/debug/kdepim-4.3.1/kmail/kmcommands.cpp:368
#25 0xb74d76cd in KMCommand::slotStart (this=0xb7eb890) at /usr/src/debug/kdepim-4.3.1/kmail/kmcommands.cpp:266
#26 0xb74d642c in KMCommand::qt_metacall (this=0xb7eb890, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xbfb4de48) at /usr/src/debug/kdepim-4.3.1/build/kmail/kmcommands.moc:86
#27 0xb74d6d13 in KMSetStatusCommand::qt_metacall (this=0xb7eb890, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbfb4de48) at /usr/src/debug/kdepim-4.3.1/build/kmail/kmcommands.moc:1360
#28 0xb6fb6925 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#29 0xb6fb7625 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#30 0xb6fbc975 in ?? () from /usr/lib/libQtCore.so.4
#31 0xb6fbcabc in ?? () from /usr/lib/libQtCore.so.4
#32 0xb6fb167b in QObject::event () from /usr/lib/libQtCore.so.4
#33 0xb6594b5c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#34 0xb659d2b6 in QApplication::notify () from /usr/lib/libQtGui.so.4
#35 0xb7c91e8b in KApplication::notify (this=0xbfb4e5b8, receiver=0xb1e7fa0, event=0xbfb4e2ac) at /usr/src/debug/kdelibs-4.3.1/kdeui/kernel/kapplication.cpp:302
#36 0xb6fa0aee in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#37 0xb6fd0f9d in ?? () from /usr/lib/libQtCore.so.4
#38 0xb6fcd77e in ?? () from /usr/lib/libQtCore.so.4
#39 0xb43e1cea in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#40 0xb43e5354 in ?? () from /usr/lib/libglib-2.0.so.0
#41 0xb43e54df in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#42 0xb6fcd6da in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#43 0xb6639b4a in ?? () from /usr/lib/libQtGui.so.4
#44 0xb6f9f0b3 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#45 0xb6f9f50d in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#46 0xb6fa1a66 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#47 0xb65949c4 in QApplication::exec () from /usr/lib/libQtGui.so.4
#48 0x0804a52d in main (argc=) at /usr/src/debug/kdepim-4.3.1/kmail/main.cpp:146

Reported using DrKonqi