Comment 207 for bug 1470250

Also, to add one other thing. There were a bunch of commits made upstream to the storvsc driver in the last few months.

Can we try them out to see if they have any impact on this issue? In particular:

1) 81988a0e6b031bc80da15257201810ddcf989e64 - storvsc: get rid of bounce buffer
2) 3209f9d780d137cdb54c85e0a776cb19e723a170 - scsi: storvsc: Fix a bug in the handling of SRB status flags
3) 03996f2064a5c5b7c1bd942794d622179acf2d61 - storvsc: Tighten up the interrupt path