Re: SCSI regression in 4.11

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On Tue, 28 Feb 2017 22:20:58 -0800
James Bottomley <jejb@xxxxxxxxxxxxxxxxxx> wrote:

> On Tue, 2017-02-28 at 17:25 -0800, Stephen Hemminger wrote:
> > [    1.346023] hv_storvsc:  IO cmd 0x12 0x0 0x0 scsi status 0x0 srb
> > status 0x20 length 36
> > [    1.352913] inquiry data: 00000000: 00 aa be f1 5c 98 ff ff f0 64
> > 02 89 ff ff ff ff
> > [    1.356543] inquiry data: 00000010: 00 00 00 00 00 00 00 00 00 00
> > 00 00 00 00 00 00
> > [    1.359996] inquiry data: 00000020: 00 00 00 00
> > [    1.361835] scsi host1: scsi scan: INQUIRY result too short (5),
> > using 36
> > [    1.361888] hv_storvsc:  IO cmd 0xa0 0x0 0x0 scsi status 0x0 srb
> > status 0x1 length 16
> > [    1.362307] hv_storvsc:  IO cmd 0x12 0x0 0x0 scsi status 0x0 srb
> > status 0x1 length 36
> > [    1.362308] inquiry data: 00000000: 00 23 34 f1 5c 98 ff ff f0 64
> > 02 89 ff ff ff ff
> > [    1.362309] inquiry data: 00000010: 00 00 00 00 00 00 00 00 00 00
> > 00 00 00 00 00 00
> > [    1.362309] inquiry data: 00000020: 00 00 00 00
> > [    1.377423] scsi 1:0:0:1: Direct-Access                           
> >          PQ: 0 ANSI: 0  
> 
> Well, this pinpoints the fault to the block uncopy, I think.  The
> Inquiry data is clearly correct in the page frame, so it's not getting
> copied to the scsi_execute() buffer for some reason.
> 
> James
> 

Let me know, I can run another test and dump more data.



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