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

["Li, Xin B" <xin.b.li@xxxxxxxxx>]

>
>> 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 

Yes, this patch seems hang the SMP dom0 system at all, even pressing
ctrl-A 3 times won't response.
So, waiting for your complete fix :-)
-Xin


>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
>
>
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