Date: Tue, 6 Jul 1999 09:03:42 +1000 (EST) From: Andrew MacIntyre <andymac@bullseye.apana.org.au> To: Dmitry Flitmann <dflit@nns.ru> Cc: freebsd-smp@FreeBSD.ORG Subject: Re: Intel SC450NX hangs under high disk/memory load (2) Message-ID: <Pine.OS2.3.95.990706085442.237A-100000@CENTRAL> In-Reply-To: <QBOwGWt0D3ED@gera.nix.nns.ru>
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On Mon, 5 Jul 1999, Dmitry Flitmann wrote:
> I've read kern/11330 bug report from the GNATS database,
> and tried to compile kernel which uses only 512M RAM.
>
> Everything seems to work fine.
>
> Any ideas - are there any problems with memory over 512M -
> either kernel, or maybe some drivers/controllers?
{...}
> >MAXUSERS is 512 (or 256)
I haven't seen any responses to your query via the list, so...
Given that I remember your described usage patterns, I seem to recall
seeing recommendations to use a smaller MAXUSERS value (say 128) and
directly modify the specific values which may need to be increased, such
as NMBCLUSTERS (hope I got that right...). I think it had to do with the
MAXUSERS calculation causing kernel memory usage to expand too much.
I also remember seeing a reference to Linux having a max of 1GB-64MB RAM,
but was reasonably sure FreeBSD's limit was 4GB-64MB (but to use this
much still required some recent bits from current).
You may want to try searching the lists for more info on MAXUSERS and
NMBCLUSTERS.
--
Andrew I MacIntyre "These thoughts are mine alone..."
E-mail: andrew.macintyre@aba.gov.au (work) | Snail: PO Box 370
andymac@bullseye.apana.org.au (play) | Belconnen ACT 2616
Fido: Andrew MacIntyre, 3:620/243.18 | Australia
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