[Dovecot] BUG: Unknown internal error

[Ralf Hildebrandt]

With a recent checkout of dovecot-2 I'm getting a few "BUG: Unknown
internal error" messages.

The log for one such incident:

Jul 21 10:21:38 postamt dovecot: imap(ikurzweg): copy from INBOX: box=INBOX.Trash, uid=6385, msgid=<4DA3E334.000005.02956 at ILONA-PC>, size=90980
Jul 21 10:21:38 postamt dovecot: imap(ikurzweg): copy from INBOX: box=INBOX.Trash, uid=6386, msgid=<4DA3ECDD.000008.02956 at ILONA-PC>, size=103191
Jul 21 10:21:38 postamt dovecot: imap(ikurzweg): delete: box=INBOX, uid=5426, msgid=<4DA3E334.000005.02956 at ILONA-PC>, size=90980
Jul 21 10:21:38 postamt dovecot: imap(ikurzweg): delete: box=INBOX, uid=5427, msgid=<4DA3ECDD.000008.02956 at ILONA-PC>, size=103191
Jul 21 10:21:38 postamt dovecot: imap(ikurzweg): expunge: box=INBOX, uid=5426, msgid=<4DA3E334.000005.02956 at ILONA-PC>, size=90980
Jul 21 10:21:38 postamt dovecot: imap(ikurzweg): expunge: box=INBOX, uid=5427, msgid=<4DA3ECDD.000008.02956 at ILONA-PC>, size=103191
Jul 21 10:21:53 postamt dovecot: imap(ikurzweg): Error: Corrupted index cache file /home/i/k/ikurzweg/Maildir/dovecot.index.cache: Broken MIME parts for mail UID 4433
Jul 21 10:21:53 postamt dovecot: imap(ikurzweg): Disconnected: BUG: Unknown internal error bytes=5689/114139

What's up here?
-- 
Ralf Hildebrandt
  Geschäftsbereich IT | Abteilung Netzwerk
  Charité - Universitätsmedizin Berlin
  Campus Benjamin Franklin
  Hindenburgdamm 30 | D-12203 Berlin
  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  ralf.hildebrandt at charite.de | http://www.charite.de