add-single-device won't work in 2.4.3

Armin,
It works for me:

$ uname -a
Linux frig 2.4.3 #1 Fri Mar 30 16:33:45 EST 2001 i586 unknown

$ cat /proc/scsi/scsi
Attached devices: 
Host: scsi1 Channel: 00 Id: 01 Lun: 00
  Vendor: IBM      Model: DNES-309170W     Rev: SA30
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi2 Channel: 00 Id: 05 Lun: 00
  Vendor: UMAX     Model: Astra 1220S      Rev: V1.2
  Type:   Scanner                          ANSI SCSI revision: 02
Host: scsi2 Channel: 00 Id: 06 Lun: 00
  Vendor: YAMAHA   Model: CRW4416S         Rev: 1.0g
  Type:   CD-ROM                           ANSI SCSI revision: 02

$ echo "scsi remove-single-device 2 0 5 0" > /proc/scsi/scsi
$ cat /proc/scsi/scsi 
Attached devices: 
Host: scsi1 Channel: 00 Id: 01 Lun: 00
  Vendor: IBM      Model: DNES-309170W     Rev: SA30
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi2 Channel: 00 Id: 06 Lun: 00
  Vendor: YAMAHA   Model: CRW4416S         Rev: 1.0g
  Type:   CD-ROM                           ANSI SCSI revision: 02

$ echo "scsi add-single-device 2 0 5 0" > /proc/scsi/scsi
$ cat /proc/scsi/scsi
Attached devices: 
Host: scsi1 Channel: 00 Id: 01 Lun: 00
  Vendor: IBM      Model: DNES-309170W     Rev: SA30
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi2 Channel: 00 Id: 06 Lun: 00
  Vendor: YAMAHA   Model: CRW4416S         Rev: 1.0g
  Type:   CD-ROM                           ANSI SCSI revision: 02
Host: scsi2 Channel: 00 Id: 05 Lun: 00
  Vendor: UMAX     Model: Astra 1220S      Rev: V1.2
  Type:   Scanner                          ANSI SCSI revision: 02

$ sg_scan -i
/dev/sg0: scsi1 channel=0 id=1 lun=0  type=0
    IBM       DNES-309170W      SA30 [wide=1 sync=1 cmdq=1 sftre=0 pq=0x0]  
/dev/sg1: scsi2 channel=0 id=6 lun=0  type=5
    YAMAHA    CRW4416S          1.0g [wide=0 sync=1 cmdq=0 sftre=0 pq=0x0] 
/dev/sg2: scsi2 channel=0 id=5 lun=0  type=6
    UMAX      Astra 1220S       V1.2 [wide=0 sync=0 cmdq=0 sftre=0 pq=0x0]

This last command is from sg_utils and it sends actual INQUIRY commands rather than relying on data held in the midlayer. This demonstrates the devices are responding.

Run on a AMD K6-2 500MHz machine with 2 advansys adapters. Could you retest. If it continues to fail then it may be a problem with the new aic7xxx driver. You also have the option of building with the "old" (i.e. former) aic7xxx driver.

Doug Gilbert

hi!

problem resolved: the first scsi adaptor is scsi1 NOT scsi0 as in <=2.4.2. so i did add/remove devices from a non existend controller ...

thanks for posting your /proc/scsi/scsi, i compared it with mine from 2.4.2 and voila!

i hope this is a "wanted" behavior ...

thanks for all your fast replies!

CU,
Armin Obersteiner
--
[email protected] pgp public key on request CU