Re: MicroVAX 3100-40 -> asc0: !TC on DATA XFER

G'day Darren & Miod,

I've had something similar recently off a nbsd/pmax machine with parity 
enabled. Swapped drives, went away. Mostly seemed to be the scsi dvd out 
of an old sun 280R that was giving it gas. Seems exceptionally happy 
though on a 4000-m90 running VMS though.

My other suspicion was that it wasn't spinning up in time and there was 
some kind of time-out. Given that the drive is the equiv of a 38x spin.

Worth dropping to db> and dropping the registers off the ncr 53c94 next 
time it's grumpy? Do other devices function as advertised on the tin on 
the same chain?

Al.

--
  --
  Al Boyanich
  adb -w -P "world> " -k /dev/meta/galaxy/ksyms /dev/god/brain


On Mon, 12 Mar 2012, Miod Vallat wrote:

>> Hello,
>>      Trying to install the OpenBSD 5.1 snapshot (2012.02.14) and when
>> the install script tries to mound the cd-rom I get the following errors:
>> asc0: !TC on DATA XFER [intr 10, stat 83, step 4] prevphase 1, resid 2000
>> asc0: !TC on DATA XFER [intr 10, stat 83, step 4] prevphase 1, resid 2000
>> asc0: !TC on DATA XFER [intr 10, stat 83, step 4] prevphase 1, resid 2000
>
> It's been a _VERY_ long time since I last saw those messages (as in,
> more than ten years). I'll try to hook up a cdrom drive to my 3100-30
> soon and see if I can reproduce this, and investigate.
>
> In the meantime I'd suggest getting the sets from the network as a
> workaround.
>
> Miod