[NTLUG:Discuss] Adapetc 2940UW SCSI Problems

[Kevin C. Fandre]

Checked in my kernel graveyard and I used to run 2.0.36. Last time I
bulit that was on May 15, 1999. I never had any problems with the
aic7xxx driver thats used for the 2940UW. The README.aic7xxx in the
kernel source mentions several debug flags that you can supply as kernel
boot arguments to make the error reporting much more verbose. This
should allow you to track it down further...

I also have version 2.0.31 in my kernel graveyard and it looks as though
there were some pretty significant changes to this driver. It went up a
major version number for instance.

For reference, here is what my kernel boot messages look like under
2.2.13:

May 15 21:05:20 octopus kernel: (scsi0) <Adaptec AHA-294X Ultra SCSI
host adapter> found at PCI
15/0
May 15 21:05:20 octopus kernel: (scsi0) Wide Channel, SCSI ID=7, 16/255
SCBs
May 15 21:05:20 octopus kernel: (scsi0) Warning - detected
auto-termination
May 15 21:05:20 octopus kernel: (scsi0) Please verify driver detected
settings are correct.
May 15 21:05:20 octopus kernel: (scsi0) If not, then please properly set
the device termination
May 15 21:05:20 octopus kernel: (scsi0) in the Adaptec SCSI BIOS by
hitting CTRL-A when prompted

May 15 21:05:21 octopus pcmcia: init_module: Device or resource busy
May 15 21:05:20 octopus kernel: (scsi0) during machine bootup.
May 15 21:05:20 octopus kernel: (scsi0) Cables present (Int-50 YES,
Int-68 YES, Ext-68 NO)
May 15 21:05:20 octopus kernel: (scsi0) Downloading sequencer code...
413 instructions downloaded
May 15 21:05:20 octopus kernel: scsi0 : Adaptec AHA274x/284x/294x
(EISA/VLB/PCI-Fast SCSI) 5.1.20/3.2.4
May 15 21:05:20 octopus kernel:        <Adaptec AHA-294X Ultra SCSI host
adapter>
May 15 21:05:20 octopus kernel: scsi : 1 host.
May 15 21:05:20 octopus kernel: (scsi0:0:0:0) Synchronous at 40.0
Mbyte/sec, offset 8.
May 15 21:05:20 octopus kernel:   Vendor: IBM       Model:
DCHS04U           Rev: 2727
May 15 21:05:20 octopus kernel:   Type:
Direct-Access                      ANSI SCSI revision: 02
May 15 21:05:20 octopus kernel: Detected scsi disk sda at scsi0, channel
0, id 0, lun 0
May 15 21:05:20 octopus kernel:   Vendor: HP        Model: CD-Writer
6020    Rev: 1.07
May 15 21:05:20 octopus kernel:   Type:
CD-ROM                             ANSI SCSI revision: 02
May 15 21:05:20 octopus kernel: scsi : detected 1 SCSI disk total.

-Kevin


"George E. Lass" wrote:

> Real-To:  "George E. Lass" <George.Lass at osc.com>
>
> Hope there is someone out there that can help me with this
> problem.  I just recently upgraded from RedHat 4.2 (2.0.30 kernel)
> to RedHat 5.2 (2.0.36 kernel).  I know I'm way behind, but
> I've got some vendor software that is only spec'ed to run
> on 5.2  :-{
>
> While the 2940UW worked just fine with 4.2, it has major problems
> in 5.2  I am getting constant timeouts and SCSI bus re-sets while
> trying to access my hard drive.
>
> I have temporarily replaced my 2940UW with a 2940U, but I really
> miss the 40mb transfer rate.
>
> George
>
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