Re: PROBLEM: 2.4.27-rc1 system clock is running two times too fast

[Marcelo Tosatti]

On Mon, Jun 21, 2004 at 12:01:20PM +0100, Andrew Walrond wrote:
> On Monday 21 Jun 2004 12:30, zebul666 wrote:
> > System is running 2 times faster than it should
> 
> Could this be related to the recent 2.6.7-bk troubles? Have similar patches 
> made it into 2.4?
> 
> (Check back a few messages or archives for details)

The change which broke made it through ACPI update

This patch from Andrew (for 2.6, but 2.4 should be very similar) seem to
fix it.


 06/21/2004 00:21:37

"Matt H." <lkml@xxxxxxxxxxxxxxxxxx> wrote:
>
> I can confirm simular behavior here. I loaded 2.6.7-mm1 tonite  and  tried  
> Andrew's  patch ( which didn't work ) and then Linus's  ( which also didn't 
> work ).
> 

hm.  This worked for me.  Could you double-check?


diff -puN arch/i386/kernel/mpparse.c~double-clock-speed-fix arch/i386/kernel/mpparse.c
--- 25/arch/i386/kernel/mpparse.c~double-clock-speed-fix	2004-06-20 23:28:16.655299120 -0700
+++ 25-akpm/arch/i386/kernel/mpparse.c	2004-06-20 23:28:20.468719392 -0700
@@ -1017,7 +1017,6 @@ void __init mp_config_acpi_legacy_irqs (
 
 		for (idx = 0; idx < mp_irq_entries; idx++)
 			if (mp_irqs[idx].mpc_srcbus == MP_ISA_BUS &&
-				(mp_irqs[idx].mpc_dstapic == ioapic) &&
 				(mp_irqs[idx].mpc_srcbusirq == i ||
 				mp_irqs[idx].mpc_dstirq == i))
 					break;
diff -puN arch/x86_64/kernel/mpparse.c~double-clock-speed-fix arch/x86_64/kernel/mpparse.c
--- 25/arch/x86_64/kernel/mpparse.c~double-clock-speed-fix	2004-06-20 23:28:16.672296536 -0700
+++ 25-akpm/arch/x86_64/kernel/mpparse.c	2004-06-20 23:28:20.469719240 -0700
@@ -861,7 +861,6 @@ void __init mp_config_acpi_legacy_irqs (
 
 		for (idx = 0; idx < mp_irq_entries; idx++)
 			if (mp_irqs[idx].mpc_srcbus == MP_ISA_BUS &&
-				(mp_irqs[idx].mpc_dstapic == ioapic) &&
 				(mp_irqs[idx].mpc_srcbusirq == i ||
 				mp_irqs[idx].mpc_dstirq == i))
 					break;
_

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