From: Ravikiran G Thirumalai <kiran@scalex86.org>
To: Andrew Morton <akpm@osdl.org>
Cc: akpm@zip.com.au, ak@suse.de, linux-kernel@vger.kernel.org,
shai@scalex86.org
Subject: Re: [patch] x86_64: fix cpu_to_node setup for sparse apic_ids
Date: Wed, 27 Jul 2005 18:50:00 -0700 [thread overview]
Message-ID: <20050728015000.GC23923@localhost.localdomain> (raw)
In-Reply-To: <20050727182445.52be6000.akpm@osdl.org>
On Wed, Jul 27, 2005 at 06:24:45PM -0700, Andrew Morton wrote:
> Ravikiran G Thirumalai <kiran@scalex86.org> wrote:
> >
> > While booting with SMT disabled in bios, when using acpi srat to setup
> > cpu_to_node[], sparse apic_ids create problems. Here's a fix for that.
> >
>
> Again, I don't have enough info here to judge the urgency of this patch.
>
> What are the consequences and risks of not having this patch in 2.6.13, and
> to how many machines?
>
Without this patch, intel x86_64 boxes with hyperthreading disabled in the
bios (and which rely on srat for numa setup) endup having incorrect
values in cpu_to_node[] arrays, causing sched domains to be built
incorrectly etc.
Thanks,
Kiran
next prev parent reply other threads:[~2005-07-28 1:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-28 1:15 [patch] x86_64: fix cpu_to_node setup for sparse apic_ids Ravikiran G Thirumalai
2005-07-28 1:24 ` Andrew Morton
2005-07-28 1:50 ` Ravikiran G Thirumalai [this message]
2005-07-29 7:46 ` Andi Kleen
2005-08-01 22:07 ` [PATCH] MM, NUMA : sys_set_mempolicy() doesnt check if mode < 0 Eric Dumazet
2005-08-03 9:13 ` Andi Kleen
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