From: Avi Kivity <avi@redhat.com>
Subject: Re: [PATCH 0/2] kvm: fix spurious interrupt with irqfd
Date: Wed, 20 Jan 2010 17:09:32 +0200
Message-ID: <4B571CAC.9000902@redhat.com>
References: <20100113171222.GA19798@redhat.com> <4B5305CA.5070001@redhat.com> <20100119145202.GC28465@redhat.com> <4B570EDD.6000808@redhat.com> <20100120145822.GB3434@redhat.com>
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Cc: mtosatti@redhat.com, Davide Libenzi <davidel@xmailserver.org>,
	kvm@vger.kernel.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
To: "Michael S. Tsirkin" <mst@redhat.com>
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On 01/20/2010 04:58 PM, Michael S. Tsirkin wrote:
>
>> I'm uncomfortable with pushing Davide's patch into stable and possibly
>> causing regressions with unrelated applications.  Can't a guest live
>> with a spurious interrupt?
>>      
> Well guests mask/unmask vector on each interrupt, so this will trigger
> an irq storm I think.
>
>    
>>   It's not like they're unknown.
>>      
> Depends on the device really.
> In theory, if they trigger at an unfortunate time this could cause
> crashes.
>
>    

I'd like confirmation on both of these before I push things to stable.

-- 
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