Re: 2.9test9-mm1 and DAO ATAPI cd-burning corrupt

From: Linus Torvalds
Date: Thu Nov 06 2003 - 14:46:47 EST

On 6 Nov 2003, bill davidsen wrote:
> I'm not sure what you mean by faster, burning runs at device limited
> speed in CPU time in the less than 1% range if you remember to enable
> DMA. The last time I looked DMA didn't work in either kernel if write
> size was not a multiple of 1k, (or 2k?) has that changed?

DMA works fine


Don't use it. Please. There's no point.

It's much more readable to do

cdrecord dev=/dev/hdc

than it is to do some stupid "scan SCSI devices" + "dev=0,1,0" or similar
totally incomprehensible crap that doesn't even work right.

> I'm not sure what you meant by faster, so don't think I'm disagreeing
> with you.

Faster as in "it uses DMA for everything, so you can actually burn at full
speed without having to worry about it or sucking up CPU".


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