Re: [PATCH] x86_64 NUMA : Bug correction in populate_memnodemap()

On Wed, Dec 07, 2005 at 04:35:18PM +0100, Eric Dumazet wrote:
> As reported by Keith Mannthey, there are problems in populate_memnodemap()
> 
> The bug was that the compute_hash_shift() was returning 31, with incorrect 
> initialization of memnodemap[]
> 
> To correct the bug, we must use (1UL << shift) instead of (1 << shift) to 
> avoid an integer overflow, and we must check that shift < 64 to avoid an 
> infinite loop.

Thanks looks good.

I guess we'll need that for 2.6.15.

-Andi
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References:
- [PATCH] x86_64 NUMA : Bug correction in populate_memnodemap()
  - From: Eric Dumazet <[email protected]>

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