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Date:      Thu, 22 Apr 1999 07:40:02 -0700 (PDT)
From:      "Daniel C. Sobral" <dcs@newsguy.com>
To:        freebsd-bugs@FreeBSD.org
Subject:   Re: kern/11266: Page fault, fatal trap in kernel
Message-ID:  <199904221440.HAA71508@freefall.freebsd.org>

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The following reply was made to PR kern/11266; it has been noted by GNATS.

From: "Daniel C. Sobral" <dcs@newsguy.com>
To: Nickolai Zeldovich <kolya@zepa.net>
Cc: FreeBSD-gnats-submit@FreeBSD.ORG
Subject: Re: kern/11266: Page fault, fatal trap in kernel
Date: Thu, 22 Apr 1999 23:29:40 +0900

 Nickolai Zeldovich wrote:
 > 
 > Close. 256MB memory, maxusers is set at 96 right now. Other things from
 > the kernel configuration:
 
 > options         "MAXDSIZ=(384*1024*1024)"
 > options         "DFLDSIZ=(384*1024*1024)"
 > options         "NMBCLUSTERS=3072"
 
 3.1-stable, for now, has a problem with large memory configurations
 when certain kernel sizes are set too high.
 
 Maxusers 96 ought to be safe, but your problems looks like the
 mem/max problem, only at a very slow rate. The problem derives from
 the kernel taking up more memory than it has space to map. Since
 this is gradually used, it takes a while for the problem to show up.
 One week is a long while, so you might be a borderline case, because
 of your other options. I suggest lowering maxusers to 90, and see if
 that eliminates the problem, or make your machine survive a while
 longer.
 
 --
 Daniel C. Sobral			(8-DCS)
 dcs@newsguy.com
 dcs@freebsd.org
 
 	"Well, Windows works, using a loose definition of 'works'..."
 


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