Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [PATCH 0/2] Relax restrictions on setting CONFIG_NUMA on x86 | Date | Wed, 23 Jan 2008 11:45:14 +0100 |
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> > i386 already has srat parsing code (just written in a horrible hackish > > way); but it exists arch/x86/kernel/srat_32.c > > Yes, I spotted that. Enabling it required a Kconfig change
does it? I was pretty sure that a !NUMAQ i386 CONFIG_NUMA build already used that. At least that was the case when I last looked. If that has changed it must have bitrotted recently.
> or two and > enabling BOOT_IOREMAP. It then crashes early in boot on a call to strlen() > so I went with the stubs and SRAT disabled for the moment.
Crashed on a Opteron box? That was always the case
If it crashed on a (older) Summit then it likely bitrotted, because that worked at some point. The code was originally written by Pat G. for Summit1 and I believe was at least used by some people (no distributions) for S2, possible 3 too.
> Ok, understood. When I next revisit this, I'll look at making ACPI_SRAT > and BOOT_IOREMAP work on normal machines and see what happens. Thanks.
Again the problem shouldn't be normal machines, but non Summit NUMA systems.
-Andi
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