From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from inergen.sybase.com (inergen.sybase.com [192.138.151.43]) by kvack.org (8.8.7/8.8.7) with ESMTP id SAA31654 for ; Wed, 27 Jan 1999 18:36:01 -0500 Message-ID: <36AFA207.AB6D149E@sybase.com> Date: Wed, 27 Jan 1999 17:32:23 -0600 From: Jason Froebe MIME-Version: 1.0 Subject: Re: Shared memory segment > 1gb References: Content-Type: multipart/mixed; boundary="------------03FEC94B406D698DBC8E2130" Sender: owner-linux-mm@kvack.org To: "linux-mm@kvack.org" , "linux-kernel@vger.rutgers.edu" List-ID: This is a multi-part message in MIME format. --------------03FEC94B406D698DBC8E2130 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Jason Froebe wrote: > Hi, > > I'm trying to get a shared memory segment of just under 2 gb. So > far, I've been able to get a 893mb shared segment by altering the > _SHM_IDX_BITS to 18 in include/asm/shmparam.h using the 2.2.0 > kernel. I'm assuming I can set the _SHM_IDX_BITS to 19 without a > problem (more overhead though), but since this is my "working" > computer, I don't want any surprises. is this possible without > breaking something? I glanced at the code but didn't see any > obvious "gotchas". > > Don't ask why I don't use multiple segments. It's not my > decision. > > Jason > > - jfroebe.vcf Hi, I've increased the _SHM_IDX_BITS to 19 and decreased _SHM_ID_BITS to 5 with SHMMAX set to 2gb - 2*page size but it didn't help. I'm still stuck at 893mb. Does anyone know of how to increase the shared memory segment further without using multiple segments? Thanks Jason --------------03FEC94B406D698DBC8E2130 Content-Type: text/x-vcard; charset=us-ascii; name="jfroebe.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Jason Froebe Content-Disposition: attachment; filename="jfroebe.vcf" begin:vcard n:Froebe;Jason tel;fax:773-864-7288 tel;work:1-800-8SYBASE x-mozilla-html:TRUE url:http://www.sybase.com org:Sybase, Inc.;Technical Support adr:;;8755 W. Higgins Road Suite 1000 ;Chicago;IL;60631;USA version:2.1 email;internet:jfroebe@sybase.com title:Technical Support Engineer x-mozilla-cpt:;20256 fn:Jason Froebe end:vcard --------------03FEC94B406D698DBC8E2130-- -- To unsubscribe, send a message with 'unsubscribe linux-mm my@address' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://humbolt.geo.uu.nl/Linux-MM/