linux-kernel - Re: 2.6.23 boot failures on x86-64.

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Message-Id: <1193692862.3133.14.camel@avenin.ebourne.me.uk>
Date:	Mon, 29 Oct 2007 21:21:02 +0000
From:	Martin Ebourne <martin@...ler.org>
To:	Dave Jones <davej@...hat.com>
Cc:	Andi Kleen <ak@...e.de>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Zou Nan hai <nanhai.zou@...el.com>,
	Suresh Siddha <suresh.b.siddha@...el.com>, stable@...nel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: 2.6.23 boot failures on x86-64.

On Mon, 2007-10-29 at 15:43 -0400, Dave Jones wrote:
> On Mon, Oct 29, 2007 at 08:03:09PM +0100, Andi Kleen wrote:
>  > >  > But if allocating bootmem >4G doesn't work on these systems
>  > >  > most likely they have more problems anyways. It might be better
>  > >  > to find out what goes wrong exactly.
>  > > Any ideas on what to instrument ?
>  > 
>  > See what address the bootmem_alloc_high returns; check if it overlaps
>  > with something etc.
>  > 
>  > Fill the memory on the system and see if it can access all of its memory.
> 
> Martin, as you have one of the affected systems, do you feel up to this?

Faking a node at 0000000000000000-000000001fff0000
Bootmem setup node 0 0000000000000000-000000001fff0000
sparse_early_mem_map_alloc: returned address ffff81000070b000

My box has 512MB of RAM.

Cheers,

Martin.

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