Re: [Bug #10872] x86_64 boot hang when CONFIG_NUMA=n

From: Ingo Molnar
Date: Mon Jul 07 2008 - 02:32:53 EST



* Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> 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@xxxxxxxxx>
| 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?

Ingo

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