Subject: Re: panic: mb_map too small (more info)
To: Darren Hosking <dmh@tusc.com.au>
From: Chris G. Demetriou <cgd@alpha.bostic.com>
List: netbsd-bugs
Date: 08/02/1994 22:21:25
>Further to my previous mail Re: panic: mb_map too small the card is a
>WD8003E as identified at bootup:
> 
>Aug  3 11:06:11 jacana /netbsd: ed0 at isa0 port 0x280-0x29f iomem 0xd0000-0xd1f
>ff irq 9: address 00:00:c0:96:c7:19, type WD8003E (8-bit)

What were you doing around the time of the panic?  In general, it
indicates that there is too little mbuf space configured for your
kernel, but you have to be pounding the machine pretty hard for it
to show up.

> NetBSD 1.0-ALPHA (JACANA) #3: Tue Jul 12 14:12:35 EST 1994

This isn't very up-to-date, but i don't _think_ there have been
serious changes to if_ed lately...

> What parameter do I need to increase if I just need more buffers?

you could do something like:
options		"NMBCLUSTERS=512"
in your kernel config file.  NMBCLUSTERS is the paramter that
makes the difference here.  normally (unless 'options GATEWAY'
is in use) it's set to 256.


chris

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