Re: [discuss] x86-64: double timer interrupts in recent 2.4.x

From: Vojtech Pavlik
Date: Mon Jun 21 2004 - 06:08:16 EST


On Mon, Jun 21, 2004 at 12:45:51PM +0200, Milan Gabor wrote:
> Hi!
>
> I have Suse 9.0 and dual Opteron on MSI K8T Master 2 motherboard.
> I also get interrupts only on one cpu and my clock is ticking strange,
> so I have to synchronize it with NTP server frequently.
>
> This is from my system:
> CPU0 CPU1
> 0: 30434 16139843 IO-APIC-edge timer
> 1: 944 0 IO-APIC-edge keyboard
> 2: 0 0 XT-PIC cascade
> 14: 30 1 IO-APIC-edge ide0
> 16: 657371 0 IO-APIC-level eth0
> 20: 261267 0 IO-APIC-level libata
> NMI: 694146 873271
> LOC: 16167676 16167576
> ERR: 1
> MIS: 0
>
> Linux www 2.4.21-226-smp #1 SMP Tue Jun 15 09:14:10 UTC 2004 x86_64
> x86_64 x86_64 GNU/Linux
>
>
> I am also running irq_balance and acpi=off set from grub boot menu.
> Without acpi=off system never boots.
>
> Is there any solution, so clock will work OK and interrupts will be on
> both CPUs?
>
> MIlan

This patch could fix that (replace i386 with x86_64):

http://marc.theaimsgroup.com/?l=linux-kernel&m=108774225111967&w=2


--
Vojtech Pavlik
SuSE Labs, SuSE CR
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