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From: dwalker@fifo99.com
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	linuxppc-dev@lists.ozlabs.org
Subject: simple_alloc space tramples initrd
Date: Fri, 8 Jan 2016 09:45:06 -0800	[thread overview]
Message-ID: <20160108174506.GA12105@fifo99.com> (raw)

Hi,

A powerpc machine I'm working on has this problem where the simple_alloc_init() area is trampling the
initrd. The two are placed fairly close together.

I have a fix for this proposed to add a section into arch/powerpc/boot/zImage.lds.S called "mallocarea"
to account for this space, but not all powerpc platforms use simple_alloc_init(). So for those platforms
it's a waste.

Another alternative is to alter the bootloader to place more space between the kernel image and initrd image.

I wanted to get some feedback on the right way to fix this. It seems like it could be a generic issue on powerpc,
or it's possibly already fixed someplace and I just haven't noticed.

Any feedback appreciated.

Daniel

             reply	other threads:[~2016-01-08 17:58 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-08 17:45 dwalker [this message]
2016-01-11  3:09 ` simple_alloc space tramples initrd Michael Ellerman
2016-01-11 16:49   ` dwalker
2016-01-11 22:17     ` Michael Ellerman
2016-01-11 23:07       ` dwalker
2016-01-11 23:37         ` Michael Ellerman

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