Re: [Fwd: 3940UW Driver Locks the Machine]

Robert L Harris (nomad@rocky.orci.com)
Sun, 15 Feb 1998 10:03:23 -0700 (MST)

> Andreas Haumer wrote:
> >
> > Hi!
> >
> > Robert L Harris wrote:
> > >
> > > When I try and read files off my jaz, usually it seems to lock my machine.
> > > It locks the scsi activity light on and if I can get to the console I get
> > > alot of errors concerning the queue. This time I didn't change the adapter
> > > defaults.
> > >
> > > Who do I work with to see about fixing this?
>
> That would be me, but you're too late :) I've already fixed certain
> problems with the Jaz drives in my latest patch, and even gone a step
> further in my "about to be released" patch. More on that in the
> announcement for my next patch.

Know which kernel this will be applicable in?

If you need/want a guinea pig (sp?) let me know... I've got a 3940UW,
a number of seagate and Quantum Drives, a CD-R (Yamaha), 4mm Tape
and Jaz in my machine.

> > With command queuing turned off for the JAZ drive it works stable and
> > well!
>
> Yes, they do. But, the problems with Jax drives and command queueing are
> deeper than what is being reported here. You were lucky, your Jaz drive
> flakes out on tagged commands and causes problems, which leads you to turn
> off command queueing and then things work fine. For versions of the Jaz
> firmware that are J.86 or less, the problem is much worse. That firmware
> will say that it can do tagged queueing, and will accept the tagged
> commands, but it will silently corrupt your data in the process. The Jaz
> drives as a whole should be blacklisted from tagged command queueing
> entirely.

Mine reports J^77 I believe. Is it possible to get a firmware upgrade?
So I need to turn off command tag queing all together?

---------------------------------------------------------------------------
Robert L. Harris | NT is secure....
System Engineer For Hire. \_ as long as you don't remove the shrink wrap.

http://www.orci.com/~nomad

DISCLAIMER:
These are MY OPINIONS ALONE. I speak for no-one else.
perl -e 'print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'

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