Date: Tue, 7 Mar 2006 16:12:19 -0500 (EST) From: Kris Kennaway <kris@FreeBSD.org> To: FreeBSD-gnats-submit@FreeBSD.org Subject: sparc64/94190: hw.physmem tunable does not work on sparc Message-ID: <20060307211219.B3D6952529@obsecurity.dyndns.org> Resent-Message-ID: <200603072120.k27LK1OZ063183@freefall.freebsd.org>
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>Number: 94190 >Category: sparc64 >Synopsis: hw.physmem tunable does not work on sparc >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-sparc64 >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Mar 07 21:20:01 GMT 2006 >Closed-Date: >Last-Modified: >Originator: Kris Kennaway >Release: FreeBSD 7.0-CURRENT sparc64 >Organization: FreeBSD >Environment: FreeBSD/sparc64 >Description: The hw.physmem tunable can no longer be used to limit the amount of RAM used by FreeBSD (e.g. for the purposes of limiting dump size). This was broken for a long time, but seemed to be fixed by r1.152 of src/sys/sparc64/sparc64/pmap.c. Now it doesn't work again (so either it's broken again, or it never worked properly). >How-To-Repeat: On a system with e.g. 16GB of RAM, set hw.physmem="8g" in /boot/loader.conf. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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