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Re: [Xen-devel] [PATCH v2 2/2] xen/evtchn: optimize XSM ssid field

On 24/03/14 08:38, Jan Beulich wrote:
> While looking at this I started to wonder if the 100k event channel
> promise in 4.4 isn't broken: All the *_port fields here are 16-bit only,
> and hence only good for around 64k ports. If they all got widened to
> 32 bits, the structure (with the improvements above) would become
> 24/28/32 bytes. Widening them without any other adjustments
> (thinking of a backport thereof to the 4.4 branch) would appear to
> retain the current size.

Oops.  We did test binding the full number of event channels but we
obviously didn't test that they actually worked properly.


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