linux-kernel - Re: [Bug #10872] x86_64 boot hang when CONFIG

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Date:	Sun, 6 Jul 2008 23:57:05 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Randy Dunlap" <randy.dunlap@...cle.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Kernel Testers List" <kernel-testers@...r.kernel.org>
Subject: Re: [Bug #10872] x86_64 boot hang when CONFIG_NUMA=n

On Sun, Jul 6, 2008 at 11:32 PM, Ingo Molnar <mingo@...e.hu> wrote:
>
> * Linus Torvalds <torvalds@...ux-foundation.org> wrote:
>
>> > This still happens with 2.6.26-rc9.  Using CONFIG_NUMA=y boots OK.
>>
>> Ok, then it wasn't the nr_zones thing.
>>
>> Since it seems to be repeatable for you, can you bisect it?
>
> one guess would be:
>
> | commit e8ee6f0ae5cd860e8e6c02807edfa3c1fa01bcb5
> | Author: Yinghai Lu <yhlu.kernel@...il.com>
> | Date:   Sun Apr 13 01:41:58 2008 -0700
> |
> |     x86: work around io allocation overlap of HT links
>
> but ... since CONFIG_NUMA makes it work, i'm not sure about that.
>
> Randy, could you post the full CONFIG_NUMA bootlog as well, does it show
> any difference in resource allocations?
>
l looked resource allocations in that bootlog.

all my AMD test servers work well with Randy's config (!NUMA)
( Linus tree or tip tree)

YH
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