Re: [Patch] tsc-disable_A5

From: Dave Jones (
Date: Fri Jun 14 2002 - 13:57:52 EST

On Fri, Jun 14, 2002 at 11:35:26AM -0700, john stultz wrote:

> This patch disables the TSCs when compiled for Multiquad NUMA hardware.
> Due to the slower interconnect, the TSCs aren't being synced properly at
> boot time. Even if they were synced, since the different nodes are
> driven by different crystals, the TSCs still drift.

-#ifndef CONFIG_X86_TSC
+#if !defined(CONFIG_X86_TSC)||defined(CONFIG_TSC_DISABLE)
+static int tsc_disable __initdata = 1;
 static int tsc_disable __initdata = 0;

This looks *really horrible*
Why not just unset CONFIG_X86_TSC for those machines ?


| Dave Jones.
| SuSE Labs
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