Re: Linux 2.0.36pre8 (release candidate one aka 'no chance')

Derrick J Brashear (shadow@DEMENTIA.ORG)
Tue, 8 Sep 1998 19:35:30 -0400 (EDT)


> I guess you don't have a CD changer to test ;) Well, it is better but ...

It works for me regardless of ordering, and I *do* have a changer to test
with:-)

> The only sure fix is to disable disconnects and remove the device from the
> blacklist. That works 100% for concurrent access to two CD's but is likely
> to time out for more, and its not recommended if the CD changer's on a bus
> with other devices!

Mine is 7 discs and on a bus with other devices....

> So far 2.0.35 and below don't work, 2.0.36-pre with the patch sometimes
> works, and sometimes doesn't, depends on which order the luns are started
> which also seems to vary depending on which driver is being used, and
> 2.1.1xx doesn't work - at least 2.1.115-120 don't. 2.1.1xx kernels behave
> _exactly_ the same as 2.0.35.
>
> With the patch I have found
>
> dd if=/dev/scd4 of=/dev/null &
> dd if=/dev/scd5 of=/dev/null
>
> works - scd5 is a higher lun than scd4 - i.e. works if second command uses a
> higher lun than the first.

Any device ordering works for me, I'm doing this on a Sparc 4 running 2.0.35,
using the onboard esp (NCR53c90 or somesuch) scsi controller.

I have no trouble believing something still isn't entirely right, but please,
don't break it for those of us for whom it works:-)

-D

-D

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/faq.html