Subject: Re: Question about vm map slots on the I386 platform under 1.2
To: Jukka Marin <>
From: Erik E. Fair <>
List: tech-kern
Date: 07/10/1997 14:27:22
At 12:17 -0700 7/10/97, Jukka Marin wrote:

>I think your sendmail was lauching _lots_ of children and you ran out of
>memory.  Limit the number of your sendmail processes to a safe value and
>you should be ok.  I did this some time ago on one system that had a long
>(over 100 days) uptime and then died suddenly during a high mail load.

Limiting any server process to some reasonable fraction of the resources of
the machine it runs on is always a good idea.

However, NetBSD should not panic like this. When a resource runs out, the
requested operation should be refused, and the user code can deal (or not).

Basic principle: a normal user process should *never* be able to panic the
system. If it can, that's a serious bug, and it should (at minimum) be
reported as such with "send-pr".

	Erik <>