Re: Devices not supporting read-6....

From: Jonas Nickel (jonas.nickel@tu-berlin.de)
Date: Fri Jan 21 2000 - 04:33:36 EST


At 00:06 21.01.00 +0100, Rogier Wolff wrote:

>As far as I know, "read-6" is a very mandatory command. However
>there is a device, the
>
> {"TOSHIBA","DVD-RAM SD-W1101","*", BLIST_GHOST},
>
>which doesn't implement it.

That also applies to the neweer TOSHIBA SD-W1111.

> - Blacklist it as "doesn't support read-6" and implement
> stuff to prevent read-6 if that flag is set?
....
>Is there maybe already something implemented? Anybody the "owner" of
>that piece of code?

Jens Axboe has a patch for it on www.kernel.dk. His current DVD-CD-ROM patch
fixes most of the problem by using something like a flag. According to my
experience it is working pretty well - if you format the whole disk. As soon
as you partition it and try format the partion the whole system becomes
unstable. I have tried to figure what it does then but it will take me a while
to really trace this remaining problem.

Regards,

Jonas

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