Re: [Xen-devel] [PATCH 0/5] Add MSI support to XEN

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 31/3/08 15:14, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> wrote:

> I wonder whether there is a timing issue of some sort, and it depends if the
> NIC generates the software-triggered interrupt at a fast enough rate that the
> host CPU fails to make progress if it doesn't mask the MSI? You haven't
> changed test machine at all, or put the NIC in a different PCI slot, or
> anything like that?

Also, it's got to be worth kicking your hardware guys again and find out
from them exactly what happens when that software-triggered interrupt
register gets written by the device driver. Their previous response didn't
sound very enlightening.

 -- Keir



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel