It sounds like the following commit is also needed to solve bug 1456985 :
commit dc45708ca9988656d706940df5fd102672c5de92
Author: K. Y. Srinivasan <email address hidden>
Date: Fri May 1 11:03:02 2015 -0700
storvsc: Set the SRB flags correctly when no data transfer is needed
That commit was requested in bug 1454758 . I'm going to mark bug 1454758 as a duplicate of this bug and build all of the commits requested in that bug and this bug together in a test kernel.
It sounds like the following commit is also needed to solve bug 1456985 :
commit dc45708ca998865 6d706940df5fd10 2672c5de92
Author: K. Y. Srinivasan <email address hidden>
Date: Fri May 1 11:03:02 2015 -0700
storvsc: Set the SRB flags correctly when no data transfer is needed
That commit was requested in bug 1454758 . I'm going to mark bug 1454758 as a duplicate of this bug and build all of the commits requested in that bug and this bug together in a test kernel.