Messages in this thread | | | Date | Wed, 27 Jul 2005 18:50:00 -0700 | From | Ravikiran G Thirumalai <> | Subject | Re: [patch] x86_64: fix cpu_to_node setup for sparse apic_ids |
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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.
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