Re: Problems with Toshiba SD-W2002 DVD-RAM drive (IDE)

From: Jens Axboe (axboe@suse.de)
Date: Wed Apr 18 2001 - 07:39:53 EST

On Wed, Apr 18 2001, Jens Axboe wrote:
> On Tue, Apr 17 2001, Stefan Jaschke wrote:
> > Judging from the thread started Jan 1, 2001, by Andre Hedrick,
> > I thought IDE DVD-RAM just works out of the box and got a
> > Toshiba SD-W2002.
> >
> > Problem: /dev/hdc cannot be read or written to when the drive contains
> > DVD-RAM media. The behavior is the same for the stock 2.4.3 kernel
> > and the SuSE-2.4.0 kernel. Strangely enough, the disk can be read,
> > but not written to, with the 2.2.18 kernel.
>
> It should work, note that I recently spotted some quite severe bugs in
> the pio write handling for ATAPI which I've almost fixed here now. It
> seems you drive is in DMA mode though, so it shouldn't be affecting you.

Attached patch for 2.4.4-pre4 which fixes all known DVD-RAM ATAPI bugs.
Both pio and dma mode work fine here, using ext2, on a 9.4gb HITACHI
DVD-RAM GF-2000 drive. 

-- 
Jens Axboe
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This archive was generated by hypermail 2b29 : Mon Apr 23 2001 - 21:00:26 EST