[Dovecot] problems with dotlock

[Scott Silva]

on 2-26-2009 3:25 PM Scott Silva spake the following:
> on 2-26-2009 3:04 PM Mark Hedges spake the following:
>> On Thu, 26 Feb 2009, Timo Sirainen wrote:
>>
>>> On Thu, 2009-02-26 at 14:23 -0800, Mark Hedges wrote:
>>>> Feb 26 14:14:06 anubis dovecot: child 25810 (pop3) killed with signal 11
>>> It shouldn't be crashing. Could you get a gdb backtrace from this?
>>> http://dovecot.org/bugreport.html
>> I set mail_drop_priv_before_exec = yes, and I did `ulimit -c
>> unlimited` and `echo "/tmp/core" >
>> /proc/sys/kernel/core_pattern` before starting dovecot, but
>> I still didn't get a core dump anywhere.  Seems like the
>> home directory is okay.  No core file.  Even looked
>> everywhere with `locate` after `updatedb`.  Is this a reason
>> I can say that CentOS sucks too much to use in production?
>> ;-)
> 
> Thousands (if not hundreds of thousands) of people are using CentOS in
> production. What makes you think it is CentOS?
> Just because you are trying to use a poorly (maybe inadequately is a better
> word) written application like openwebmail doesn't fault the OS.
> 
> Openwebmail was written to use setuid perl which has been less than safe for
> years. It doesn't do fcntl locking, which it probably should at least be able
> to do to stay current with many MTA's. It also does direct access to the mail
> store instead of going through an IMAP daemon. So that adds another point of
> contention.
> 
> It would probably be fine if it was the only access for mail, or maybe along
> with pop3. But throw in an IMAP mua, and maybe sieve or fancy procmail scripts
> and you have an accident waiting to happen.
> 
> I still have openwebmail running on one of my older servers, but it will go
> away when I get migrated to the replacement. It works only because the people
> that are using it don't access their mail with anything else. Even usermin
> from the webmin stable of progs does better access to mail in terms of
> versatility, although it is kind of ugly looking.
> 
> 
> 
I just wanted to back off a little since the OP is only using openwebmail by
"suggestion" from the one who signs his paycheck. We have all been backed into
that corner before!



-- 
MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!

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