linux-kernel - Re: mmotm boot panic bootmem-avoid-dma32-zone-by-default.patch

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Message-ID: <4B92FE9E.90600@kernel.org>
Date:	Sat, 06 Mar 2010 17:17:18 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Jiri Slaby <jirislaby@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>
CC:	Johannes Weiner <hannes@...xchg.org>,
	Greg Thelen <gthelen@...gle.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>, cl@...ux-foundation.com
Subject: Re: mmotm boot panic bootmem-avoid-dma32-zone-by-default.patch

On 03/05/2010 02:26 AM, Jiri Slaby wrote:
> On 03/05/2010 10:04 AM, Yinghai Lu wrote:
>> according to context
>> http://patchwork.kernel.org/patch/73893/
>>
>> Jiri, 
>> please check current linus tree still have problem about mem_map is using that much low mem?
> 
> Hi!
> 
> Sorry, I don't have direct access to the machine. I might try to ask the
> owners to do so.
> 
>> on my 1024g system first node has 128G ram, [2g, 4g) are mmio range.
> 
> So where gets your mem_map allocated (I suppose you're running flat model)?

what kernel version? 2.6.27?

x86 64bit now only support SPARSEMEM.

Yinghai

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