From: Stephen Hemminger <stephen@networkplumber.org>
To: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Jens Axboe <axboe@kernel.dk>, Christoph Hellwig <hch@lst.de>,
Linus Torvalds <torvalds@linux-foundation.org>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
"K. Y. Srinivasan" <kys@microsoft.com>,
Dexuan Cui <decui@microsoft.com>, Long Li <longli@microsoft.com>,
Josh Poulson <jopoulso@microsoft.com>,
v-adsuho@microsoft.com, linux-scsi@vger.kernel.org,
Haiyang Zhang <haiyangz@microsoft.com>
Subject: Re: SCSI regression in 4.11
Date: Wed, 1 Mar 2017 15:39:30 -0800 [thread overview]
Message-ID: <20170301153930.113f2260@xeon-e3> (raw)
In-Reply-To: <1488409784.2183.48.camel@HansenPartnership.com>
On Wed, 01 Mar 2017 15:09:44 -0800
James Bottomley <James.Bottomley@HansenPartnership.com> 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.
next prev parent reply other threads:[~2017-03-02 0:07 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-27 23:30 SCSI regression in 4.11 Stephen Hemminger
2017-02-28 1:19 ` Stephen Hemminger
2017-02-28 2:16 ` Jens Axboe
2017-02-28 14:08 ` Christoph Hellwig
2017-02-28 15:32 ` Jens Axboe
2017-02-28 17:06 ` James Bottomley
2017-02-28 17:16 ` Stephen Hemminger
2017-02-28 17:31 ` Jens Axboe
2017-02-28 18:41 ` Stephen Hemminger
2017-02-28 19:10 ` James Bottomley
2017-02-28 18:57 ` Stephen Hemminger
2017-02-28 23:48 ` James Bottomley
2017-03-01 1:25 ` Stephen Hemminger
2017-03-01 6:20 ` James Bottomley
2017-03-01 6:48 ` Stephen Hemminger
2017-03-01 15:50 ` Christoph Hellwig
2017-03-01 15:54 ` Stephen Hemminger
2017-03-02 0:01 ` Christoph Hellwig
2017-03-02 0:56 ` Christoph Hellwig
2017-03-02 1:40 ` Stephen Hemminger
2017-03-02 13:25 ` Hannes Reinecke
2017-03-02 17:48 ` Stephen Hemminger
2017-03-02 18:23 ` Stephen Hemminger
2017-03-02 18:36 ` James Bottomley
2017-03-02 19:05 ` Stephen Hemminger
2017-03-02 19:18 ` James Bottomley
2017-03-03 22:29 ` Stephen Hemminger
2017-03-04 0:50 ` [RFC] hv_storvsc: error handling Stephen Hemminger
2017-03-04 11:55 ` Hannes Reinecke
2017-03-04 21:03 ` KY Srinivasan
2017-03-04 21:36 ` James Bottomley
2017-03-04 21:39 ` KY Srinivasan
2017-03-04 23:55 ` KY Srinivasan
2017-03-06 16:36 ` Stephen Hemminger
2017-03-06 17:48 ` KY Srinivasan
2017-03-06 17:57 ` Stephen Hemminger
2017-03-07 5:06 ` Christoph Hellwig
2017-03-07 6:08 ` KY Srinivasan
2017-03-02 0:57 ` SCSI regression in 4.11 Stephen Hemminger
2017-03-01 16:13 ` Stephen Hemminger
2017-03-01 18:48 ` Stephen Hemminger
2017-03-01 18:57 ` James Bottomley
2017-03-01 19:20 ` James Bottomley
2017-03-01 19:39 ` Stephen Hemminger
2017-03-01 21:27 ` Stephen Hemminger
2017-03-01 23:09 ` James Bottomley
2017-03-01 23:39 ` Stephen Hemminger [this message]
2017-03-01 19:00 ` Linus Torvalds
2017-02-28 17:33 ` Stephen Hemminger
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