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Re: [Xen-devel] [PATCH] x86/apic/x2apic: Share IRQ vector between cluster members only when no cpumask is specified

>>> Andrew Cooper <andrew.cooper3@xxxxxxxxxx> 08/07/17 5:40 PM >>>
>On 07/08/17 16:38, Jan Beulich wrote:
>> So a single NIC drove the system out of vectors? That's insane, I would
>> say, i.e. I'd call this a misconfigured system. But yeah, if we really want
>> to get such a thing to work despite the insanity ...
>No.  That's one single (dual headed) card with 128 virtual functions each.

But putting such in a single-core system is, well, not very reasonable. At
the very least I'd expect the admin to limit the number of VFs then, or not
load a driver in Dom0 for them (but only for the PF).


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