On Wed, 01 Mar 2017 15:09:44 -0800 James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote: > On Wed, 2017-03-01 at 13:27 -0800, Stephen Hemminger wrote: > > Ok here is much better data, wasn't accounting for the offset in the > > payload > > But now both responses are the same: > > > Working 4.10 > [...] > > [ 1.048920] hv_storvsc: INQUIRY cmd 0x12 0x0 0x0 scsi status 0x0 > > srb status 0x20 length 36 > > [ 1.048920] hv_storvsc: payload size 288 count 1 offset 1024 len > > 36 pfn 0x1f15d7 > > [ 1.048921] hv_storvsc: sg 0: phys 0x1f15d7000 virt > > ffff9270b15d7000 offset 0x400 length 36 > > [ 1.048922] data: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 > > 00 00 00 ................ > > [ 1.048923] data: 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 > > 00 00 00 ................ > > [ 1.048923] data: 00000020: 00 00 00 00 > > .... > > [ 1.048942] scsi host1: scsi scan: INQUIRY result too short (5), > > using 36 > > > > > > Broken 4.11 > [...] > > [ 1.812926] hv_storvsc: INQUIRY cmd 0x12 0x0 0x0 scsi status 0x0 > > srb status 0x20 length 36 > > [ 1.812927] hv_storvsc: payload size 288 count 1 offset 2816 len > > 36 pfn 0x1f198b > > [ 1.812928] hv_storvsc: sg 0: phys 0x1f198b000 virt > > ffff9a42f198b000 offset 0xb00 length 36 > > [ 1.812953] data: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 > > 00 00 00 ................ > > [ 1.812953] data: 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 > > 00 00 00 ................ > > [ 1.812954] data: 00000020: 00 00 00 00 > > .... > > [ 1.813258] scsi host1: scsi scan: INQUIRY result too short (5), > > using 36 > > Hyper-v is returning a buffer of zeros for INQUIRY to the offline > device in both cases ... that means the problem isn't where I thought > it was. > > James Yes. Earlier output wasn't accounting for offsets, new dump code is.
