Re: [Xen-devel] IRQs, move_in_progress, -EBUSY &c

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

 On 08/11/2010 07:56 AM, George Dunlap wrote:
> Going backwards to the root of the problem: The root device times out
> even though the device driver successfully loads and sees the device
> -- it complains about missing interrupts.  It misses interrupts
> because the PHYSDEVOP_setup_gsi returns -16, EBUSY, and the pvops
> kernel doesn't retry; so the gsi is never set up.
Aside from any of the other issues, EBUSY doesn't generally suggest that 
the caller should try again.  That would be EAGAIN.
    J

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