invalid VPD response; probably a STANDARD INQUIRY response
xosevp opened this issue · 2 comments
# /usr/local/sbin/rescan-scsi-bus.sh -V
20220930
# rpm -q sg3_utils
sg3_utils-1.46-5.fc38.x86_64
# /usr/local/sbin/rescan-scsi-bus.sh
Scanning SCSI subsystem for new devices
Scanning host 0 for SCSI target IDs 0 1 2 3 4 5 6 7, all LUNs
Scanning for device 0 0 0 0 ...
OLD: Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: OCZ-AGILITY3 Rev: 2.50
Type: Direct-Access ANSI SCSI revision: 05
Scanning host 1 for SCSI target IDs 0 1 2 3 4 5 6 7, all LUNs
Scanning host 2 for SCSI target IDs 0 1 2 3 4 5 6 7, all LUNs
Scanning host 3 for SCSI target IDs 0 1 2 3 4 5 6 7, all LUNs
Scanning host 4 for SCSI target IDs 0 1 2 3 4 5 6 7, all LUNs
Scanning host 5 for SCSI target IDs 0 1 2 3 4 5 6 7, all LUNs
egrep: warning: egrep is obsolescent; using grep -E
Scanning for device 5 0 0 0 ...
OLD: Host: scsi5 Channel: 00 Id: 00 Lun: 00
Vendor: hp Model: DVD-RAM GH80N Rev: RF03
Type: CD-ROM ANSI SCSI revision: 05
..............................Scanning host 6 for SCSI target IDs 0 1 2 3 4 5 6 7, all LUNs
Scanning for device 6 0 0 0 ...
OLD: Host: scsi6 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: Samsung SSD 860 Rev: 4B6Q
Type: Direct-Access ANSI SCSI revision: 05
Scanning host 7 for SCSI target IDs 0 1 2 3 4 5 6 7, all LUNs
Scanning for device 7 0 0 0 ...
OLD: Host: scsi7 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: WDC WD40EZRZ-00G Rev: 0A80
Type: Direct-Access ANSI SCSI revision: 05
Scanning host 8 for SCSI target IDs 0 1 2 3 4 5 6 7, all LUNs
Scanning for device 8 0 0 0 ...
OLD: Host: scsi8 Channel: 00 Id: 00 Lun: 00
Vendor: WD Model: My Book 25EE Rev: 4009
Type: Direct-Access ANSI SCSI revision: 06
Scanning for device 8 0 0 1 ...
OLD: Host: scsi8 Channel: 00 Id: 00 Lun: 01
Vendor: WD Model: SES Device Rev: 4009
Type: Enclosure ANSI SCSI revision: 06
Scanning host 9 for SCSI target IDs 0 1 2 3 4 5 6 7, all LUNs
egrep: warning: egrep is obsolescent; using grep -E
Scanning for device 9 0 0 0 ...
OLD: Host: scsi9 Channel: 00 Id: 00 Lun: 00
Vendor: Multiple Model: Card Reader Rev: 1.00
Type: Direct-Access ANSI SCSI revision: -1
invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.invalid VPD response; probably a STANDARD INQUIRY response
.Scanning host 10 for SCSI target IDs 0 1 2 3 4 5 6 7, all LUNs
Scanning for device 10 0 0 0 ...
OLD: Host: scsi10 Channel: 00 Id: 00 Lun: 00
Vendor: WD Model: My Passport 070A Rev: 2018
Type: Direct-Access ANSI SCSI revision: 04
Scanning for device 10 0 0 1 ... 092005375 ...
OLD: Host: scsi10 Channel: 00 Id: 00 Lun: 01
Vendor: WD Model: SES Device Rev: 2018
Type: Enclosure ANSI SCSI revision: 04
0 new or changed device(s) found.
0 remapped or resized device(s) found.
0 device(s) removed.
is it a bug? or a normal response?
Thank you.
It's a bug. Been doing work on sg_inq and sg_vpd since they overlap about 90% and had separate VPD page decoding which was a pain to maintain. So lots of changes hence the risk of regressions and you have reported one. Able to replicate here with a removable SD card reader. Will work on it today. Also sped up sg_inq which was repeating some operations (e.g. scanning the /dev directory) which obviously wasted time.
Just mirrored svn revision 1023 here. With a test set of two different USB card readers, I found one had a broken INQUIRY response, but both gave a good TEST UNIT READY responses. That was asc/ascq = 0x3A/0x0 which means MEDIUM NOT PRESENT. Once that sense is seen, it is pointless to retry for 30 seconds hoping that someone will insert a SD card. The reported failure was also on a (USB ?) "Card Reader" so I would be grateful it you would try this new revision and report back how it goes. sg_inq and sg_turs have also been changed but there is script code to pick up the version numbers of those utilities and be relatively well behaved if sg_inq (for example) is from an older version. On my test server, with 12 real SCSI devices and two USB card readers, rescan-scsi-bus.sh took about 0.8 seconds (using the revision just mirrored).