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Subject: Re: Very big shm area
From: Austin Gonyou <austin@digitalroadkill.net>
To: Kilobug <kilobug@freesurf.fr>
Cc: lkm <linux-kernel@vger.kernel.org>
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Date: 02 Jun 2002 13:28:48 -0500
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I run a Dell 6450 with 8GB ram and a 4GB SHMMAX. You can set the
parameter any time through sysctl if you have it enabled, or you can
hardcode it per the Oracle/DB2 Docs if you wish. 

Austin


On Sun, 2002-06-02 at 12:21, Kilobug wrote:
> Hello,
> 	I wanted to know if it is possible to have a very big system V shared 
> memory segment (say about 1Gb) ?
> 
> 	I've quickly looked into the source code of shm.c and shm.h in ipc/ and 
> I've read the following:
> /*
>   * SHMMAX, SHMMNI and SHMALL are upper limits are defaults which can
>   * be increased by sysctl
>   */
> 
> But how far is it possible to increase them ? And which sysctl must be 
> done ?
> 
> Thank you for answering,

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