Malformed response

[Paul van der Vlis]

Hello,

I am using cyrus-imapd-2.1.9-41 and postfix-1.1.11-109, they both come 
with Suse 8.1.

The system works normally good, but I have seen 3 big delivering 
disturbances in the few months I am running it. The mail is not 
delivered then. When I restart Cyrusd, everything works well again.

This is what I see in /var/log/mail:

----
Mar 12 06:35:09 linux postfix/local[14536]: warning: premature 
end-of-input from private/cyrus socket while reading input attribute name
Mar 12 06:35:09 linux postfix/local[14536]: warning: private/cyrus 
socket: malformed response
Mar 12 07:47:54 linux postfix/qmgr[752]: A166F149E2: skipped, still 
being delivered
Mar 12 07:51:14 linux postfix/qmgr[752]: A166F149E2: skipped, still 
being delivered
Mar 12 07:56:14 linux postfix/qmgr[752]: A166F149E2: skipped, still 
being delivered
----

And that last message is repeated very many times, for many messages.

I don't see anything interesting in /var/log/messages.

When I do a "ps -ax" during an disturbance then I see very many Cyrus 
processes, things like this:

-----
14521 ?        S      0:00 ctl_cyrusdb -c
15486 ?        S      0:00 /usr/lib/cyrus/bin/deliver -r user at domain.nl 
-m  hans
-----

Especially the first line I see very often.

Maybe there is somebody who knows this problem?

With regards,
Paul van der Vlis