Version:            (using KDE KDE 3.3.1)
Installed from:    Slackware Packages
OS:                Linux

Kmail tends to crash on Slackware-Current (KDE 3.3.1).  When deleting email using the keyboard delete key, after approximately a day uptime, emails are moved to trash using this key, but a bar at the bottom of the application claims that Kmail is still trying to move those files.  Because Kmail has been set to check in mail every 30 minutes (pop3 account), when it comes time to check mail in, this also hangs and has a progress bar with no progress being made.  (Sorry, I have no clue what this bar is called, I'm thinking status bar).  Today KMail crashed when I clicked the "check mail in" button (backtrace is at bottom of this report).  Reproducing it only takes time, as this has happened before.  Expected behavior would be for it to do what it is supposd to do, i.e. behave in a stable manner and successfully check email in and move emails between folders.

Libraries in use:
QT 3.3.3
Glibc 2.3.3
GCC 3.3.4
Artsd 1.3.1

Backtrace:
Using host libthread_db library "/lib/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 1377)]
[KCrash handler]
#5  0x08404f3f in ?? ()
#6  0x2240b604 in ?? ()
#7  0x40339c7b in KMMoveCommand::execute ()
   from /opt/kde/lib/libkmailprivate.so.0
#8  0x4033124a in KMCommand::slotPostTransfer ()
   from /opt/kde/lib/libkmailprivate.so.0
#9  0x4032ac02 in KMCommand::qt_invoke ()
   from /opt/kde/lib/libkmailprivate.so.0
#10 0x4032e83d in KMMenuCommand::qt_invoke ()
   from /opt/kde/lib/libkmailprivate.so.0
#11 0x4032ec71 in KMMoveCommand::qt_invoke ()
   from /opt/kde/lib/libkmailprivate.so.0
#12 0x4032eecd in KMDeleteMsgCommand::qt_invoke ()
   from /opt/kde/lib/libkmailprivate.so.0
#13 0x419b718c in QObject::activate_signal ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#14 0x4032aa6a in KMCommand::messagesTransfered ()
   from /opt/kde/lib/libkmailprivate.so.0
#15 0x4033129a in KMCommand::transferSelectedMsgs ()
   from /opt/kde/lib/libkmailprivate.so.0
#16 0x4033106b in KMCommand::slotStart ()
   from /opt/kde/lib/libkmailprivate.so.0
#17 0x4032abec in KMCommand::qt_invoke ()
   from /opt/kde/lib/libkmailprivate.so.0
#18 0x4032e83d in KMMenuCommand::qt_invoke ()
   from /opt/kde/lib/libkmailprivate.so.0
#19 0x4032ec71 in KMMoveCommand::qt_invoke ()
   from /opt/kde/lib/libkmailprivate.so.0
#20 0x4032eecd in KMDeleteMsgCommand::qt_invoke ()
   from /opt/kde/lib/libkmailprivate.so.0
#21 0x419b718c in QObject::activate_signal ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#22 0x41cd8bca in QSignal::signal () from /usr/lib/qt/lib/libqt-mt.so.3
#23 0x419d136d in QSignal::activate () from /usr/lib/qt/lib/libqt-mt.so.3
#24 0x419d8b53 in QSingleShotTimer::event ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#25 0x4195a84f in QApplication::internalNotify ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#26 0x41959e4e in QApplication::notify () from /usr/lib/qt/lib/libqt-mt.so.3
#27 0x414ed873 in KApplication::notify () from /opt/kde/lib/libkdecore.so.4
#28 0x4194a085 in QEventLoop::activateTimers ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#29 0x4190497b in QEventLoop::processEvents ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#30 0x4196cba8 in QEventLoop::enterLoop () from /usr/lib/qt/lib/libqt-mt.so.3
#31 0x4196ca58 in QEventLoop::exec () from /usr/lib/qt/lib/libqt-mt.so.3
#32 0x4195aaa1 in QApplication::exec () from /usr/lib/qt/lib/libqt-mt.so.3
#33 0x0804a3c4 in ?? ()
#34 0xbffff800 in ?? ()
#35 0xbffff710 in ?? ()
#36 0x00000000 in ?? ()
#37 0x00000000 in ?? ()
#38 0x41dde2c0 in vtable for QGArray () from /usr/lib/qt/lib/libqt-mt.so.3
#39 0x080cf540 in ?? ()
#40 0x422c5e32 in malloc () from /lib/libc.so.6
#41 0x4227a549 in __libc_start_main () from /lib/libc.so.6
#42 0x0804a121 in ?? ()