[openib-general] RFC: detecting duplicate MAD requests

[Michael S. Tsirkin]

Quoting r. Hal Rosenstock <halr at voltaire.com>:
> > Without some sort of restriction, a userspace app that's slow to pull receive 
> > MADs from the kernel would result in consuming a large amount of kernel memory.
> 
> Understood but dropping a MAD after acknowledging also seems like a bad
> thing to me.

True. Maybe we can find a way to avoid acknowledging the MAD?

> Couldn't this be controlled on the request side (assuming
> the request has a response as opposed to unsolicited sends/receives) ?

Sounds like the wrong thing to do.

-- 
MST