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From: Dan Busarow <dan@dpcsys.com>
Date: Tue, 5 Feb 2008 08:05:15 -0700
To: lachlan@lkla.org
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Cc: freebsd-questions@freebsd.org
Subject: Re: Memory Error using Mailman on FreeBSD. How to debug?
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On Feb 5, 2008, at 4:17 AM, Lachlan Michael wrote:

> I have a question about debugging a memory error on FreeBSD.
>
> When a user sends an e-mail with an attachment above about 500kB to  
> a very
> small mailing list (4 members), Mailman on my server aborts processing
> with the error
>  MemoryError :  out of memory

[snip]

>
> # limits
> Resource limits (current):
>   cputime          infinity secs
>   filesize         infinity kB
>   datasize           524288 kB
>   stacksize           65536 kB
>   coredumpsize     infinity kB
>   memoryuse        infinity kB
>   memorylocked     infinity kB
>   maxprocesses         5547
>   openfiles           11095
>   sbsize           infinity bytes
>   vmemoryuse       infinity kB
>

Try running limits as the mailman user, not root.  All the mailman  
programs run as your mailman user.

Dan