linux-kernel - Re: [PATCH] scsi: sd: add runtime pm to open / release

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Message-ID: <yq15za68k17.fsf@ca-mkp.ca.oracle.com>
Date:   Wed, 29 Jul 2020 10:44:26 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Alan Stern <stern@...land.harvard.edu>
Cc:     Martin Kepplinger <martin.kepplinger@...i.sm>,
        Bart Van Assche <bvanassche@....org>, jejb@...ux.ibm.com,
        Can Guo <cang@...eaurora.org>, martin.petersen@...cle.com,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...i.sm
Subject: Re: [PATCH] scsi: sd: add runtime pm to open / release


Alan,

>> [   77.474632] sd 0:0:0:0: [sda] tag#0 UNKNOWN(0x2003) Result:
>> hostbyte=0x00 driverbyte=0x08 cmd_age=0s
>> [   77.474647] sd 0:0:0:0: [sda] tag#0 Sense Key : 0x6 [current]
>> [   77.474655] sd 0:0:0:0: [sda] tag#0 ASC=0x28 ASCQ=0x0
>> [   77.474667] sd 0:0:0:0: [sda] tag#0 CDB: opcode=0x28 28 00 00 00 60
>> 40 00 00 01 00
>
> This error report comes from the SCSI layer, not the block layer.

This the device telling us that the media (SD card?) has changed.

-- 
Martin K. Petersen	Oracle Linux Engineering