[Dovecot] dovecot crashing?

[Jim Lawson]

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Hi Eric,

On 12/25/12 9:26 PM, Eric wrote:
> Happy holidays! I am experiencing an issue when trying to check my mail
> using IMAP. with Dovecot I have tried checking my mail using a full GUI
> client (Thunderbird) and telnet. Both times I get disconnected before all
> of my messages can be downloaded and I see an error in my mail log. Here
> are the details:
>
>
> [root at cust19-1-prod-domain userqa]# dovecot --version
> 2.0.9

There have been a lot of fixes since that version; can you confirm that
this problem is not in 2.0.19 (or better yet, 2.1.12?)


> i enabled core dumps:
>
> echo 'DAEMON_COREFILE_LIMIT="unlimited"' >> /etc/sysconfig/dovecot

Does that work?  The point is to set "ulimit -c unlimited".  I don't
know what package you're using, but Dovecot doesn't ship with an init
script (at least, 2.0.9 didn't.)  The only thing I know of is at
http://wiki.dovecot.org/DovecotInit, and that doesn't use /etc/sysconfig
at all.


>
>
> Now I see this in /var/log/maillog:
>
> 2012-12-25T17:53:47-08:00 cust19-1-prod-domain dovecot: master: Error:
> service(imap): child 11265 killed with signal 11 (core dumped)
>
> core dumps are being written here, but they're empty:

If you're still getting core dumps with 2.0.19, check your setting of
"ulimit -c".  It should be "unlimited" for this case.  You may need to
modify /etc/init.d/dovecot.  My guess is that your
/etc/sysconfig/dovecot modification is having no effect.

Jim
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