linux-kernel - Re: [PATCH 3/8] SGI x86_64 UV: Limit the number of number of SRAT messages

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Date:	Tue, 27 Oct 2009 13:23:42 -0700
From:	Mike Travis <travis@....com>
To:	Cyrill Gorcunov <gorcunov@...il.com>
CC:	David Rientjes <rientjes@...gle.com>,
	Andi Kleen <andi@...stfloor.org>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jack Steiner <steiner@....com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	Yinghai Lu <yinghai@...nel.org>, Mel Gorman <mel@....ul.ie>,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [PATCH 3/8] SGI x86_64 UV: Limit the number of number of SRAT
 messages



Cyrill Gorcunov wrote:
> [David Rientjes - Tue, Oct 27, 2009 at 12:45:00PM -0700]
> ...
> | On Tue, 27 Oct 2009, Mike Travis wrote:
> | +
> | +void __init acpi_numa_print_srat_mapping(void)
> | +{
> | +	DECLARE_BITMAP(apicid_map, MAX_LOCAL_APIC);
> | +	char apicid_list[MAX_LOCAL_APIC];
> 
> Hi David, I suppose 32K on stack is too much :)
> (perhaps gcc will move it out of stack?)
> 
> ...
> 
> 	-- Cyrill

Yeah, I missed that too on my first review.  (4k seems piddling
compared to 32k on the stack! ;-)

I moved them both to static and will be testing it shortly:

static DECLARE_BITMAP(apicid_map, MAX_LOCAL_APIC) __initdata;
static char apicid_list[MAX_LOCAL_APIC] __initdata;

Thanks,
Mike

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