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From: jhc@iris.brown.edu (James H. Coombs)
Newsgroups: comp.unix.aux
Subject: Re: kmem_alloc failed: nbytes=8192
Message-ID: <15734@brunix.UUCP>
Date: 20 Sep 89 16:30:59 GMT
References: <518@wizard.UUCP>
Sender: news@brunix.UUCP
Organization: IRIS
Lines: 26

In article <518@wizard.UUCP> ernest@wizard.UUCP (Ernest Hua) writes:
> We seem to be getting an aweful lot of these panics on an NFS server
> system w/ 8 megabytes RAM and several SCSI drives.
> 
> kmem_alloc failed nbytes=8192
> panic: kmem_alloc
> 
> What might cause this error?  Are we overstressing our Mac IIx?

You can use kconfig to increase MAXCORE.  The default is 128K.  We 
increased our server to 256K and have not had any problems since.

We have also set the following: NFILE=600,  NINODE=600, NFLOCK=600, 
FLCKREC=600, FLCKFIL=150, NPROC=100.

If you are using the KEEPALIVE option on sockets under A/UX 1.1, you
will need to change the timing in the kernel to get the 10 minute
timeouts of 1.0.  We use adb to set tcp_keepidle to 0x96 (down 
from 0x3840), but there's no point in making that change unless you
need it.

--Jim

Dr. James H. Coombs
Senior Software Engineer, Research
IRIS, Brown University