linux-kernel - Re: [BUG] linux-2.6.28-rc3 regression: IRQ smp

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Message-ID: <1225935988.12402.1.camel@HP1>
Date:	Wed, 05 Nov 2008 17:46:28 -0800
From:	"Michael Chan" <mchan@...adcom.com>
To:	"Eric Dumazet" <dada1@...mosbay.com>
cc:	"linux kernel" <linux-kernel@...r.kernel.org>,
	"Linux Netdev List" <netdev@...r.kernel.org>
Subject: Re: [BUG] linux-2.6.28-rc3 regression: IRQ smp_affinities not
 respected


On Wed, 2008-11-05 at 00:09 -0800, Eric Dumazet wrote:
> Thanks Michael for your fast answer
> 
> 
> I tried this MSI disabling and yes, it now works.
> 
>  16:      42726        128        105        106         89         89
> 145        152   IO-APIC-fasteoi   uhci_hcd:usb1, eth0, eth1
> 
> But I now have same interrupt used on two NIC, so I cannot split the
> load on two CPUS, unless
> using a smp_affinity with 2 CPUS on it. Not exactly what I wanted to
> do..
> 
> Do you know if BCM5715S (tg3 driver) have same problem ?

Eric, I believe the 5715 should be OK.


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