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SubjectRe:AM53C974 error

smulan@bahnhof.se writes:
>
> Hi,
> I got a CD-R connect to my AM53C974, when i try to mount the CD i get the
> following error message: (I'm running 2.0.25)
>
>
> scsi : aborting command due timeouy : pid 22, scsi0, channel 0, id 0, lun 0,
> Read (6) 00 00 10 01 00
> ----------------------------------------------------------------
> scsi0: AM53C974_abort called -- trouble starts!!
> AM53C974 register dump:
> IO base: 0x6000; CTCREG: 0x01f8; CMDREG: 0x44; STATREG: 0x00; ISREG: 0xc4
> CFIREG: 0x80; CNTLREG1-4: 0x57; 0x40; 0x18; 0x44
> DMACMD: 0x00; DMASTC: 0x0200; DMASPA: 0x83000
> DMAWBC: 0x01f4; DMAWAC: 0x8300c; DMASTATUS: 0x00
> ----------------------------------------------------------------
>
> Does anyone know what might cause this problem?

I have the same kind of error with an archive viper DAT. It's ok to read
DAT, but if I try to write, I get those errors.

After 2/3 of those errors, the machine freeze. I once saw a message
like this :
"scsi_free:Trying to free unused memory"

I had some e-mail with the driver's author , (january 96 ?) and I
remember he said he hadn't had time to develop the driver further. So
if someone with enough scsi knowledge can figure what's wrong ...

I'd really like to see this fixed.
On the other side, the driver is working perfectly well with disks, so
it's not an high priority for most people, I think.

--
Yann.
--
_ _ ___ _________________________________
| | || . \ | Fac des sciences de Nantes. |
\ /| | | _ | Tel : 40373069 / 40374945 |
|_| |___/<_> | ydupont@sciences.univ-nantes.fr |
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