Re: interrupts on APs

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Mon, Dec 12, 2011 at 03:44:59AM +0000, YAMAMOTO Takashi wrote:
> hi,
> 
> > On Wed, Dec 07, 2011 at 04:05:34AM +0000, YAMAMOTO Takashi wrote:
> >> only think i'm aware of is the "no_irq_affinity" quirk for E7520/7320/7525.
> >> from their comment:
> >> 
> >>         /* BIOS may enable hardware IRQ balancing for
> >>          * E7520/E7320/E7525(revision ID 0x9 and below)
> >>          * based platforms.
> >>          * Disable SW irqbalance/affinity on those platforms.
> >>          */
> >> 
> >> can anyone test on those hardware?
> > 
> > Tested on a Dell poweredge 2850 with 2 Xen 3,2Ghz (single-core, hyperthread)
> > with:
> > pchb0 at pci0 dev 0 function 0
> > pchb0: Intel E7525 Memory Controller Hub (rev. 0x09)
> > ppb0 at pci0 dev 2 function 0: Intel E7525 PCI Express Port A (rev. 0x09)
> > 
> > Boot fails with obvious interrupts issues (messages from ehci controller
> > which looks like timeouts; 'lost interrupts' from cmdide).
> > With plain GENERIC from HEAD, there's no such issues.
> > 
> > So this is one platform where it fails.
> 
> does a dynamic reconfiguration (cpuctl nointr) fail similarly?

I'm not sure what you ask for here. The kernel does't reach
single-user, so I've no chances to run cpuctl.
Or should I run cpuctlagainst the non-patched kernel ? If so, with what
arguments ?

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--