[Xen-devel] Re: [PATCH][FIX] Possible fix for spurious interrupts

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 13 Apr 2006, at 20:59, Stephen C. Tweedie wrote:

> Looks like it cures it completely for me.  I've got the same box 
> running
> the same load that used to send irq16 through the roof, and it's
> currently pegged at:
>
>          16:  0   0   0   0  Phys-irq  uhci_hcd:usb2, uhci_hcd:usb5
>
> Thanks!
Actually, it seems the patch doesn't entirely work for multi-processor 
domain 0 as the wrong local APIC is sometimes prodded to do the EOI 
cycle. This was partially hidden by the fact that IRQ ffinity is also 
currently broken in our Linux tree (we need to call move_irq() in a few 
choice places). I'll get a complete fix for all this stuff into 
xen-unstable today. Probably the meat of the patch should wait a while 
before going into the -testing tree, but we'll want to get something in 
there before 3.0.2-3.
 -- Keir


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel