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xen-devel
Re: [Xen-devel] [PATCH] x86: change IO-APIC ack method default forsingle
>>> Keir Fraser <keir.fraser@xxxxxxxxxxxxx> 21.01.09 15:37 >>>
>On 21/01/2009 14:23, "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx> wrote:
>
>> xen-devel-bounces@xxxxxxxxxxxxxxxxxxx <> wrote:
>>> Ever since 3.0.2 we've been carrying this patch in our products. Since
>>> there was no indication that there would be anything wrong with the
>>> 'new' IO-APIC ack method added back then, we finally decided to drop
>>> this patch recently from SLE11, to find that the subsequent release
>>> candidate failed to work on at least on system without using
>>
>> This is a bit strange, a bit curios that do you know the reason that it not
>> working?
>
>Yes - this also -- there doesn't seem to be a good reason that the 'new'
>ack_type wouldn't work in all cases. We're also somewhat depending on it (or
>similar) for unmaskable MSIs.
Right - but MSIs were the only interrupts staying alive on that system with
the 'new' method.
Jan
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