Re: [Xen-devel] [PATCH v2] AMD/IO-APIC: Use old IO-APIC ack method if AMD 813{1, 2} PCI-X tunnel is present

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 04.06.13 at 18:48, Andrew Cooper <andrew.cooper3@xxxxxxxxxx> wrote:
> On 04/06/13 17:29, Jan Beulich wrote:
>>> +                           "Use ioapic_ack_mode=old\n");
>> "Don't use \"ioapic_ack=new\"\n" would seem better.
>>
>> Jan
> 
> No - this is more informative to someone who doesn't know the Xen
> command line arguments inside/out.

At least the spelling of the option needs to be fixed anyway. And
the reason I prefer the inverted statement is that if this someone
adds the suggested option to the beginning of the command line,
but leaves the bad option in somewhere towards the tail, the bad
behavior (and the message) will still occur.

But anyway - I continue to be unconvinced that this case can't be
easily enough dealt with the admin adding "ioapic_ack=old" to the
command line.

Jan


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