Date: Wed, 1 Jan 2003 10:21:36 -0500 From: "Matthew Emmerton" <matt@gsicomp.on.ca> To: "DoubleF" <doublef@tele-kom.ru>, <freebsd-questions@FreeBSD.ORG> Subject: Re: Limiting kernel core usage Message-ID: <008a01c2b1a9$7a0b3760$1200a8c0@gsicomp.on.ca> References: <20030101105702.27039.qmail@mail.tele-kom.ru>
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> Hello, > > How do I stop my kernel from using a piece of core? I mean, > if I have 32MB of memory, how do i make it to use only the > low 16,for instance (not removing the chips themselves,though)? I think setting MAXMEM in your kernel config file as follows will do what you want. options MAXMEM="(16*1024)" From the LINT kernel: # MAXMEM specifies the amount of RAM on the machine; if this is not # specified, FreeBSD will first read the amount of memory from the CMOS # RAM, so the amount of memory will initially be limited to 64MB or 16MB # depending on the BIOS. If the BIOS reports 64MB, a memory probe will # then attempt to detect the installed amount of RAM. If this probe # fails to detect >64MB RAM you will have to use the MAXMEM option. # The amount is in kilobytes, so for a machine with 128MB of RAM, it would # be 131072 (128 * 1024). -- Matt Emmerton To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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