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[Xen-devel] RE: regression from IRQ handling changes?

To: Jan Beulich <JBeulich@xxxxxxxxxx>
Subject: [Xen-devel] RE: regression from IRQ handling changes?
From: "Zhang, Xiantao" <xiantao.zhang@xxxxxxxxx>
Date: Sat, 12 Sep 2009 09:58:15 +0800
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Jan, 
    Frankly speaking, we haven't done the testings which can cover non-APIC 
case.  Does anybody really care about such case now ?  I can't figure out the 
reason why modern system doesn't leverage apic. If non-APIC case is necessary, 
maybe we need to fix it.   As I know, Xen is becoming more and more dependent 
on the components (APIC, ACPI....), so non-APIC or non-ACPI cases maybe 
becoming less and less important.  
Xiantao

Jan Beulich wrote:
> Using c/s 20189, I can't boot my (only) system without APIC anymore. I
> didn't have time to look into the issue in more detail so far, but
> since it seems likely that this is connected to the recent
> per-CPU-IRQ-vector changes, I wanted to ask whether these had been
> tested on APIC-less systems.
> 
> Thanks, Jan


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