Re: "DV failed to configure device" for Quantum DLT4000 tape drive on Adaptec 2940UW, 2.6.0-test11

["Darren Dupre" <darren@dmdtech.org>]

Hmm. That does reflect exactly what happened in my situation. I turned on
the tape drive, inserted a tape, and while it was busy rewinding, I inserted
the aic7xxx module.

I just tried inserting the module again, this time with no tape in the drive
as I turned it on and it initializes just fine and loads the st module. It
works fine doing everything else AFAIK.

But it still complains when I unload the modules..

Adam Kropelin <akropel1@rochester.rr.com>
>
> I've seen this same issue with my Quantum DLT4000 & 2940UW as well. It
> seems to have to do with there being a tape in the drive when the
> aic7xxx driver initializes. It looks to me like the DLT4000 does not
> respond to the DV configuration attempt when it is in the middle of
> rewinding a tape. If the rewind takes long enough, aic7xxx times out the
> configuration and gives the message you saw.
>
> I run a completely static kernel so in my case the problem happens when
> I reboot the machine with a tape still in the drive and the tape is
> positioned near the end. When the 2940UW BIOS initializes it triggers
> the DLT4000 to start rewinding the tape and if the tape is positioned
> far enough along it can still be rewinding when the kernel boots and
> aic7xxx tries to perform the DV configuration.
>
> --Adam
>
>