Version:            (using KDE KDE 3.5.5)
Installed from:    Compiled From Sources
Compiler:          gcc-4.1.1 
OS:                Linux

I created two Filters on testing account lemur in KMail.One is if From 
contains 'lemur' and Subject contains 'test' then move mails to a folder. 
Another is if From contains 'zebra' and Subject contains 'test' then move 
mails to another folder. Then I apply filter by CTRL+J in INBOX. As there are 
some mails match the filter rule and typing CTRL+J once can only apply filter 
one time. So I typed CTRL+J several times to apply filter to all matched 
mails. KMail crashes in this circumstance.

------------------------------------------------------------------------------
Using host libthread_db library "/lib/i686/nosegneg/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1208244528 (LWP 3346)]
[New Thread -1244333168 (LWP 3350)]
[New Thread -1233843312 (LWP 3349)]
[New Thread -1223353456 (LWP 3348)]
[New Thread -1212863600 (LWP 3347)]
[KCrash handler]
#6  0x03455539 in KMFolder::folderType (this=0x22222222) at kmfolder.cpp:222
#7  0x035d8368 in KMail::ImapJob::slotProcessedSize (this=0x8cb2668, 
    job=0x8cbf1f8, processed=923) at imapjob.cpp:664
#8  0x035da91e in KMail::ImapJob::qt_invoke (this=0x8cb2668, _id=10, 
    _o=0xbfceb20c) at imapjob.moc:134
#9  0x022b2b0a in QObject::activate_signal ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#10 0x07bd48d0 in KIO::Job::processedSize () from /usr/lib/libkio.so.4
#11 0x07bd541a in KIO::SimpleJob::slotProcessedSize ()
   from /usr/lib/libkio.so.4
#12 0x07c14c1f in KIO::SimpleJob::qt_invoke () from /usr/lib/libkio.so.4
#13 0x07c14ce3 in KIO::TransferJob::qt_invoke () from /usr/lib/libkio.so.4
#14 0x022b2b0a in QObject::activate_signal ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#15 0x07bd6df1 in KIO::SlaveInterface::processedSize ()
   from /usr/lib/libkio.so.4
#16 0x07c298fd in KIO::SlaveInterface::dispatch () from /usr/lib/libkio.so.4
#17 0x07c3b7ea in KIO::SlaveInterface::dispatch () from /usr/lib/libkio.so.4
#18 0x07be2e3c in KIO::Slave::gotInput () from /usr/lib/libkio.so.4
#19 0x07c21240 in KIO::Slave::qt_invoke () from /usr/lib/libkio.so.4
#20 0x022b2b0a in QObject::activate_signal ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#21 0x022b34e2 in QObject::activate_signal ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#22 0x0263f830 in QSocketNotifier::activated ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#23 0x022d36f0 in QSocketNotifier::event ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#24 0x02249d8b in QApplication::internalNotify ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#25 0x0224b209 in QApplication::notify ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#26 0x005380e2 in KApplication::notify () from /usr/lib/libkdecore.so.4
#27 0x0223d551 in QEventLoop::activateSocketNotifiers ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#28 0x021f20e1 in QEventLoop::processEvents ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#29 0x02263310 in QEventLoop::enterLoop ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#30 0x022631c6 in QEventLoop::exec () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#31 0x0224989f in QApplication::exec () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#32 0x0804a04e in main (argc=147400032, argv=0x0) at main.cpp:110
#33 0x00c1af2c in __libc_start_main () from /lib/i686/nosegneg/libc.so.6
#34 0x08049db1 in _start ()