Re: dbmail-imapd stops working, almost without a trace

We're having the same problem here.

FreeBSD 10.x, dbmail 3.2.3, MySQL 5.6...

Il 28/05/15 12:41, Peter Milesson ha scritto:
> Hi folks,
>
> I've got a problem that dbmail-imapd stops working a few times a day. 
> It started a few months ago about once in a while, but now occurs more 
> and more often.
>
> The only trace it leaves behind is in /var/log/dbmail.err:
>
> dbmail-imapd: dm_string.c:160: p_string_erase: Assertion `pos + len <= 
> S->used' failed.
>
> I've also tried to set the debug flags, trying to isolate the problem 
> from what's in the logs, but dbmail-imapd just dies, leaving this only 
> trace in dbmail.err.
>
> I was using dbmail 3.1.17 when the problem started, but I got annoyed 
> when dbmail-imapd stopped working 3 times in one day, and upgraded to 
> 3.2.3, which did not help.
>
> Nothing has been changed in the environment since more than a year, 
> except Xen being updated from 4.4.1 to 4.5.0.
>
> The mail server is using 2 VCPUs, the load is very low about 20 
> messages per day and just a couple of users. The load on the rest of 
> the server is also very low. The MariaDB database resides on another 
> virtual machine. The virtual machine has got plenty of free disk space 
> and memory.
>
> The environment has got the following properties:
>
> Linux Slackware 14.1 64-bit
> dom-U 64-bit kernel 3.13.1
> glib-2.38.2
> gmime-2.6.19
> libevent-2.0.21-stable
> libffi-3.2.1
> libzdb-2.12
> libsieve-2.3.1
> perl-5.18
> postfix-2.10.2
> mysql client MariaDB-5.5.32
>
>
> If somebody has got any idea what's up, I'd be grateful to get a fix, 
> or any idea how to solve this annoying problem.
>
> Best regards,
>
> Peter
>
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