[ofa-general] Re: [PATCH for-2.6.21] IB/mthca: fix data corruption after unmap on Sinai

[Michael S. Tsirkin]

> Quoting Roland Dreier <rdreier at cisco.com>:
> Subject: Re: [PATCH for-2.6.21] IB/mthca: fix data corruption after unmap on Sinai
> 
> Impressive debugging.
> 
> Just to be sure I understand, the problem is that mthca_arbel_fmr_unmap()
> is screwing up the key by sometimes making bit 3 and bit 23 different,
> and this violates what the driver promised FW by setting the bit in
> the INIT_HCA command, and so corruption occurs because the FW is
> getting something it didn't expect?

Exactly.

-- 
MST