DVD has vanished

[Stephan Plabst]

Hi everyone,
(sorry for my bad english)

I recently updated my Linux to kernel version 2.2.15 (plain kernel with
reiserfs-patch 3.5.19) and after the reboot my Pioneer U02 DVD wasn't
detected anymore. It simply vanished.
On startup the Adaptec 2940 (old fast-scsi-controller with BIOS 1.23)
found the DVD on ID 3, but the Linux-driver didn't detect it. There was n=
o
error-message, there is simply no device on ID 3.

I was able to track down the problem to the change between version 5.1.24
and 5.1.23 of the aic7xxx-driver. After playing with the patches, the DVD=
 was
detected with 5.1.23 in the kernel (still 2.2.15) and wasn't detected wit=
h
5.1.24.

I am no kernel-hacker, so I am not able to tell what happens between thos=
e
two versions. I would appreciate it, if anyone could help me with this. I=
t is
not pressing, because I can use the old driver, but I hope there is anoth=
er
solution as changing the card or the DVD ;-).

Attached is the information from /proc/scsi/aic7xxx/0 and /proc/scsi/scsi=
 _with_
the DVD

Thanks
Steve



++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Stephan Plabst=09=09=09=09=09Arcisstr. 21
Geodetic Insitute / GIS=09=09=09=09D-80290 Munich
Technical University of Munich=09=09=09Germany
Email: stephan.plabst at stud.tum.de



steve at steve:~ > cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: IBM      Model: DORS-32160       Rev: WA0A
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 01 Lun: 00
  Vendor: SEAGATE  Model: ST52160N         Rev: 0344
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 03 Lun: 00
  Vendor: PIONEER  Model: DVD-ROM DVD-U02  Rev: 1.06
  Type:   CD-ROM                           ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 04 Lun: 00
  Vendor: iomega   Model: jaz 1GB          Rev: G.55
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 05 Lun: 00
  Vendor: IOMEGA   Model: ZIP 100          Rev: N*32
  Type:   Direct-Access                    ANSI SCSI revision: 02


steve at steve:~ > cat /proc/scsi/aic7xxx/0
Adaptec AIC7xxx driver version: 5.1.23/3.2.4
Compile Options:
  TCQ Enabled By Default : Enabled
  AIC7XXX_PROC_STATS     : Disabled
  AIC7XXX_RESET_DELAY    : 5

Adapter Configuration:
           SCSI Adapter: Adaptec AHA-294X SCSI host adapter
                           Narrow Controller
    PCI MMAPed I/O Base: 0xdd800000
    PCI Bus 0x00 Device 0x60
 Adapter SEEPROM Config: SEEPROM found and used.
      Adaptec SCSI BIOS: Enabled
                    IRQ: 4
                   SCBs: Active 0, Max Active 10,
                         Allocated 30, HW 16, Page 255
             Interrupts: 33988
      BIOS Control Word: 0x1896
   Adapter Control Word: 0x0019
   Extended Translation: Enabled
Disconnect Enable Flags: 0x00ff
 Tag Queue Enable Flags: 0x0001
Ordered Queue Tag Flags: 0x0001
Default Tag Queue Depth: 8
    Tagged Queue By Device array for aic7xxx host instance 0:
      {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
    Actual queue depth per device for aic7xxx host instance 0:
      {8,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}

Statistics:

(scsi0:0:0:0)
  Device using Narrow/Sync transfers at 10.0 MByte/sec, offset 15
  Transinfo settings: current(25/15/0/0), goal(25/15/0/0), user(25/15/0/0=
)
  Total transfers 12726 (4184 reads and 8542 writes)


(scsi0:0:1:0)
  Device using Narrow/Sync transfers at 10.0 MByte/sec, offset 15
  Transinfo settings: current(25/15/0/0), goal(25/15/0/0), user(25/15/0/0=
)
  Total transfers 14494 (8375 reads and 6119 writes)
=20
=20
(scsi0:0:3:0)
  Device using Narrow/Sync transfers at 10.0 MByte/sec, offset 15
  Transinfo settings: current(25/15/0/0), goal(25/15/0/0), user(25/15/0/0=
)
  Total transfers 6231 (6231 reads and 0 writes)
=20
=20
(scsi0:0:4:0)
  Device using Narrow/Sync transfers at 10.0 MByte/sec, offset 15
  Transinfo settings: current(25/15/0/0), goal(25/15/0/0), user(25/15/0/0=
)
  Total transfers 0 (0 reads and 0 writes)
=20
=20
(scsi0:0:5:0)
  Device using Narrow/Async transfers.
  Transinfo settings: current(0/0/0/0), goal(0/0/0/0), user(25/15/0/0)
  Total transfers 0 (0 reads and 0 writes)


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