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Date: Fri, 13 Sep 2002 14:53:45 +0200
From: Andrea Arcangeli <andrea@suse.de>
To: Samuel Flory <sflory@rackable.com>
Cc: Stephen Lord <lord@sgi.com>, Austin Gonyou <austin@coremetrics.com>,
       Christian Guggenberger 
	<christian.guggenberger@physik.uni-regensburg.de>,
       Linux Kernel <linux-kernel@vger.kernel.org>, linux-xfs@oss.sgi.com
Subject: Re: 2.4.20pre5aa2
Message-ID: <20020913125345.GO11605@dualathlon.random>
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On Thu, Sep 12, 2002 at 07:14:14PM -0700, Samuel Flory wrote:
> include/asm-i386/page.h:#define __VMALLOC_RESERVE       (128 << 20)
> include/asm/page.h:#define __VMALLOC_RESERVE    (128 << 20)
> 
> 
> Andrea Arcangeli wrote:
> 
> >On Thu, Sep 12, 2002 at 07:47:48PM -0500, Stephen Lord wrote:
> > 
> >
> >>How much memory is in the machine by the way? And Andrea, is the
> >>vmalloc space size reduced in the 3G user space configuration?
> >>   
> >>
> >
> >it's not reduced, it's the usual 128m.
> >
> >BTW, I forgot to say that to really take advantage of CONFIG_2G one
> >should increase __VMALLOC_RESERVE too, it's not directly in function of
> >the CONFIG_2G.
> >
> 
> So how much do you recommend increasing it?   Currently it's:
> include/asm-i386/page.h:#define __VMALLOC_RESERVE       (128 << 20)
> include/asm/page.h:#define __VMALLOC_RESERVE    (128 << 20)

you can try to compile with CONFIG_3G and to set __VMALLOC_RESERVE to
(512 << 20) and see if it helps. If it only happens a bit later then
it's most probably an address space leak, should be easy to track down
some debugging instrumentation.

Andrea
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