[Dovecot] Error with 2.0.18

[Timo Sirainen]

On Mon, 2012-02-27 at 09:39 +0100, Ralf Hildebrandt wrote:
> Today I found this in my log:
> 
> Feb 26 14:27:51 postamt dovecot: imap(tscxxxf): Error: mmap(/home/t/s/tscxxxf/Maildir/dovecot.index.search.uids) failed: Cannot allocate memory

Large index, process VSZ limit reached. You might need to increase
service imap { vsz_limit }.

> Feb 26 14:27:51 postamt dovecot: imap(tscxxxf): Error: Corrupted squat uidlist file /home/t/s/tscxxxf/Maildir/dovecot.index.search.uids: uidlist not found
> Feb 26 14:27:52 postamt dovecot: imap(tscxxxf): Panic: file squat-trie.c: line 289 (squat_trie_lock): assertion failed: (trie->fd != -1)

Bugs caused by the above. I don't think I'm going to spend time on Squat
anymore, with v2.1 Lucene backend works better and faster.