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Message-ID: <4C11CEAA.5020703@zytor.com>
Date: Thu, 10 Jun 2010 22:50:34 -0700
From: "H. Peter Anvin" <hpa@...or.com>
To: Mike Frysinger <vapier.adi@...il.com>
CC: Milton Miller <miltonm@....com>, linux-kernel@...r.kernel.org,
Tim Abbott <tabbott@...lice.com>
Subject: Re: [PATCH 1/2] vmlinux.lds.h: allow people to set a smaller rootfs
alignment
On 06/09/2010 12:42 AM, Mike Frysinger wrote:
>
> i have no problem changing the default to 4 since it works fine on
> Blackfin systems. your analysis of the source alignment also seems
> reasonable ... i assume that the 8 byte fields in the source cpio
> arent referenced directly, otherwise it'd cause problems on 64bit
> systems that require 64bit values to be naturally aligned.
>
> beyond that, i dont see why any larger alignment values would be
> required since this source archive isnt executed directly. it gets
> expanded into a ramfs and then freed with the rest of the init stuff.
>
We have talked for a long time about incrementally freeing the initramfs
as it is decoded, which might help systems which are using most of their
memory for an initramfs image...
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
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