From: William Lee Irwin III <wli@holomorphy.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Jason Lunz <lunz@falooley.org>, Cameron Schaus <cam@schaus.ca>,
linux-kernel@vger.kernel.org
Subject: Re: 2.6.20 OOM with 8Gb RAM
Date: Fri, 13 Apr 2007 15:54:33 -0700 [thread overview]
Message-ID: <20070413225433.GV2986@holomorphy.com> (raw)
In-Reply-To: <20070413154653.21fdb914.akpm@linux-foundation.org>
On Fri, Apr 13, 2007 at 03:46:53PM -0700, Andrew Morton wrote:
> It's just weird - it exploits internal knowledge of VFS behaviour, diddles
> with pagecache within a fake disk strategy handler, etc.
> Furthermore, because it pretends to be a block device, the VFS will not use
> highmem pages when accessing the ramdisk. So the 8GB machine will go splat
> with only 800MB of ramdisk.
> ramfs is much cleaner and does not have that limitation.
After all this time, bdevs are still lowmem etc. Crying shame.
-- wli
next prev parent reply other threads:[~2007-04-13 22:54 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-12 17:38 2.6.20 OOM with 8Gb RAM Cameron Schaus
2007-04-12 19:15 ` Andrew Morton
2007-04-12 21:30 ` Cameron Schaus
2007-04-13 22:39 ` Jason Lunz
2007-04-13 22:46 ` Andrew Morton
2007-04-13 22:54 ` William Lee Irwin III [this message]
2007-04-13 23:32 ` Andrew Morton
2007-04-13 23:40 ` William Lee Irwin III
2007-04-13 23:01 ` Jason Lunz
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