Cyrus Deadblocking

[Teresa]

Adam Tauno Williams wrote:
>> since yesterday i have strange behavier of my productive mail server, 
>> and i
>> cannt find the reason for 2 days allready.
>>     
>
> Does "dmesg" show anything odd?

Ok guys, it happend again just right now. Exactly same behavier as 
described befor, but after few days successfully running.

I restarted a cyrus and sendmail and attached strace to the lmpd this 
time. After some time (squatter was still working) it goes to take 100% 
cpu and doenst answer. Hangs.

> If you attach to a hung process with "strace -p {pid}" what does it look
> like?
No idea what it says, but here is my strace output from lmtpd that hangs 
at the end. Then i sended kill command, what you can see at the last line:

http://kvitka.net/log2.strace.txt

I did Updated to latest kernel 2.6.27.10

cyrus     1509  0.0  0.0  36508  1940 ?        Ss   22:51   0:00 
/usr/lib/cyrus/master
cyrus     1557  0.0  0.0  70600   652 ?        S    22:51   0:00 idled
cyrus     1578 23.1 10.0 284276 208016 ?       R    22:51   3:57 
squatter -r user
cyrus     1583  0.0  0.1  98224  4012 ?        S    22:51   0:00 imapd -s
cyrus     1584  0.0  0.1  98224  3996 ?        S    22:51   0:00 imapd -s
cyrus     1585  0.0  0.1  98224  3912 ?        S    22:51   0:00 imapd -s
cyrus     1586  0.0  0.1  98224  3932 ?        S    22:51   0:00 imapd -s
cyrus     1587  0.0  0.1  98224  4012 ?        S    22:51   0:00 imapd -s
cyrus     1737  0.0  0.0  74956  2048 ?        S    22:51   0:00 smmapd
cyrus     2061  0.3  0.1  98012  3888 ?        S    23:07   0:00 pop3d -s

Now i get a lot of this processes, and everything seems to work again. 
Let see what happends if i start sendmail...

Any idea whats wrong ?

-- 
Teresa