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Date:      Sun, 10 Jan 1999 17:24:24 GMT
From:      steven@shellnet.co.uk (Steven Fletcher)
To:        Luigi Rizzo <luigi@labinfo.iet.unipi.it>
Cc:        freebsd-net@FreeBSD.ORG
Subject:   Re: IPFW, Dummynet under 2.2.8-RELEASE.
Message-ID:  <3699df97.14510975@smtp.shellnet.co.uk>
In-Reply-To: <199901101256.NAA16700@labinfo.iet.unipi.it>
References:  <199901101256.NAA16700@labinfo.iet.unipi.it>

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On Sun, 10 Jan 1999 13:56:32 +0100 (MET), you wrote:

>
>it is not unlikely that you are running out of MBUFS -- a dummynet pipe
>uses up to 100 or more of them (depending on how you configure queue size
>that is) so you need some option NMBCLUSTERS=some-high-value
>to be safe.

My kernel already has:

maxusers 	512
options		"NMBCLUSTERS=9000"
options		IPFIREWALL
options		IPFIREWALL_VERBOSE
options		IPFIREWALL_VERBOSE_LIMIT
options		IPFIREWALL_DEFAULT_TO_ACCEPT
options		DUMMYNET

>of course it should not crash, and of course it would be great if you
>could investigate more on the problem if it is easily reproducible for
>you.

I've tried really. The only trend I see is if it's being used, it
crashes. If it' not being used, it's perfectly stable.

>Another possible source of problems could be that buffers reference a
>route (descriptor) 

Aha. Could this have anything to do with the errors I'm getting?

Jan  9 13:11:48 freebsd /kernel: rtfree: 0xf4822a00 not freed (neg
refs)

I searched the mail archives, but found no real result about this.
However, these errors don't usually happen near the crashes.

Steven Fletcher - steven@shellnet.co.uk
       Shellnet - http://www.shellnet.com

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