[Dovecot] IMAP Memory Error

[John McAree]

Hi,

I recently upgraded dovecot on an OpenBSD server from the 0.99.x series 
to the 1.0-test series to eliminate a problem. That was fixed, however I 
am now experiencing issues with IMAP(S) connections. The main IMAPS use 
to the server is via Squirrelmail (many users login with it), however I 
typically use Thunderbird. The user mailboxes are stored in Maildir format.

Basically, moving, deleting or copying mails tends not to work. I have 
managed to move mails in Thunderbird if the source mailbox is small, and 
deleting mails usually works in Thunderbird. However, in Squirrelmail 
deleting or moving results in:

"ERROR : Connection dropped by imap-server.
Query: COPY 5629 "<dest-mailbox>"

/var/log/maillog reports:
May 24 23:19:03 orca dovecot: IMAP(jmcaree): pool_system_malloc(): Out 
of memory

The Out of memory error appears when moving mails with Thunderbird, also.

I had originally upgraded to dovecot1.0-test66 via a patch supplied by 
an OpenBSD porter. Today I decided to compile -test70 to see if it was 
any better. Unfortunately, this issue still exists. I tried upgrading 
Squirrelmail to the latest (1.4.4 from 1.4.3a), but no luck there. Since 
it's happening with both it and Thunderbird, though, I don't see it 
being a client issue.

Server is:
# uname -a
OpenBSD my.hostname.com 3.7 GENERIC.RAID#0 amd64

I'd appreciate any assistance or advice on this issue! Obviously, I'd 
prefer to not have to downgrade to the 0.99.x series. :-) I'm not 
subscribed to the list, so please CC me with any replies.

TIA,

John.