Re: [Xen-devel] Cannot bind IRQ 2 to guest. In use by 'cascade'.

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Nicholas Lee <emptysands@xxxxxxxxx>

Subject:

Re: [Xen-devel] Cannot bind IRQ 2 to guest. In use by 'cascade'.

From:

Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>

Date:

Fri, 14 Oct 2005 09:44:33 +0100

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On 13 Oct 2005, at 22:51, Nicholas Lee wrote:

(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch
input to Xen).
(XEN) (file=irq.c, line=224) Cannot bind IRQ 2 to guest. In use by'cascade'.
[repeats 14 more times]

What exactly is this for?

Xen manages the PIC and manages the cascade line (irq2) itself. Henceno guests can bind to it. That message usually comes out when domain0is probing for an irq by trying to bind to every irq in the system.


 -- Keir


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