Re: hdc: lost interrupt

Jens Axboe (axboe@image.dk)
Sat, 11 Dec 1999 00:33:35 +0000

On Fri, Dec 10 1999, Dan Hollis wrote:
> On 10 Dec 1999, Knut Aksel [iso-8859-1] Røysland wrote:
> > /proc/ide/ide1/hdc/capacity: 2147483647
> > /proc/ide/ide1/hdc/driver: ide-cdrom version 4.54
> > /proc/ide/ide1/hdc/media: cdrom
> > /proc/ide/ide1/hdc/model: SAMSUNG CD-ROM SCR-2431
> > /proc/ide/ide1/hdc/settings:
> > | ---- ----- --- --- ----
> > | using_dma 1 0 1 rw
> ^^^^^^^^^ ^^
>
> Try turning off dma with hdparm. Many CD drives dont handle DMA properly.
> Really.

Actually, that just might make it worse. Some Samsung models
are broken and can't transfer very big chunks of data per
interrrupt.

Does you drive otherwise work, except for the CDDA ripping?
I might have a possible fix for this.

-- 
*  Jens Axboe <axboe@image.dk>
*  Linux CD-ROM Maintainer
*  http://www.kernel.dk


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