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Re: [Xen-devel] Re: VM hung after running sometime

To: MaoXiaoyun <tinnycloud@xxxxxxxxxxx>
Subject: Re: [Xen-devel] Re: VM hung after running sometime
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Tue, 28 Sep 2010 10:07:28 -0700
Cc: xen devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, keir.fraser@xxxxxxxxxxxxx
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 On 09/28/2010 04:23 AM, MaoXiaoyun wrote:
> Is it safe to set irq affinity(including NIC, domain event, etc) manually?
> Will it cause irq lost?

There's only a very small chance of a lost interrupt, especially if the
device is mostly idle at the time. The event can only be lost if:

   1. it is handling a device interrupt
   2. you migrate it to another cpu
   3. another interrupt comes in before the first one has finished


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