From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 6 Aug 1999 09:33:32 +0100 (GMT) From: Matthew Kirkwood Subject: Re: SHM, Issue attaching Oracle >500MB shared mem In-Reply-To: <199908051636781.SM00258@mailhost.directlink.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Javan Dempsey Cc: linux-mm@kvack.org List-ID: On Thu, 5 Aug 1999, Javan Dempsey wrote: > We're currently running a number of Linux based ia32 Oracle 8.0.5 DB > Servers, and we seem to be running into a problem with attaching to > > 500MB shared mem. I've increased SHMMAX and tweaked various other > things in an attempt to fix the problem. Nothing seems to work, no > matter what SHMMAX is set to, or anything else. SVRMGRL gives this > error when trying to startup - Where did you change this value? Your capitals would seem to indicate that you hacked on the kernel, but the new place to tune such parameters is /proc/sys/kernel/shmmax. It would seem to default to 32Mb, which isn't nearly enough for a big Oracle setup. # echo `expr 1024 \* 1024 \* 1024` > /proc/sys/kernel/shmmax should allow you 1Gb of shared memory. Matthew. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://humbolt.geo.uu.nl/Linux-MM/