[openib-general] user_mad questions

Hal Rosenstock halr at voltaire.com
Fri Feb 24 07:49:26 PST 2006


Hi Sean,

On Thu, 2006-02-23 at 18:07, Sean Hefty wrote:
> Roland Dreier wrote:
> >     Sean> Second, when a failed send is reported, there's a mismatch
> >     Sean> between the size of the data copied to the user and the size
> >     Sean> returned from ib_umad_read().  The copied data is
> >     Sean> sizeof(ib_user_mad) + sizeof(ib_mad).  The reported size
> >     Sean> turns out to be sizeof(ib_user_mad) + sizeof(ib_mad_hdr).
> >     Sean> It appears that the data copy is off.
> > 
> > Yes, that seems to be a long-standing bug.  Not sure when that was introduced.
> 
> I have a patch to fix this as part of some general RMPP cleanup/optimizations.

Should the fix for this be separate from other RMPP changes ?

-- Hal




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