Re: Linux 1.3.81 and Parallel Port Zip Drive

Grant R. Guenther (
Mon, 1 Apr 1996 06:41:34 -0500 (EST)

> > SCSI timeout errors occur when I load in module ppa under kernel 1.3.81.
> A big "Me, too!" on this one. I'm running 1.3.81 and just got
> my parallel ZIP drive and thought I was going mad. I guess I'll back up a
> version or two to see if it works that way. But, of course, I prefer being
> on the "bleeding edge"! So, I hope someone has an answer to this! :-)

People have been reporting this to me since 1.3.79, but I've not been
able to reproduce the effect. Let's try to get some more specifics.

- Does this happen when ppa is resident in the kernel, or only when it
is a module ?

- Does adjusting the timing parameters (including ppa_call_sched) make
any difference ? Try going both ways - at least one person has reported
that things started working at *faster* settings. If so, this suggests
to me that some timeout higher in the SCSI code has been shortened.

- If you are using ppa with 1.3.79+ please send me a summary of
your kernel and system configurations and tell me whether the driver
is failing for you or not.

Grant R. Guenther