On Wed, 2005-08-17 at 17:59 +0200, Erik Slagter wrote:

On Wed, 2005-08-17 at 11:40 -0400, Davidlohr Bueso A. wrote:
ROFL! Sorry...

I didn't mention that I recompiled/rebooted my system after making the
changes because it is obvious that I did it. I'm also not using my
debian-precompiled kernel -> I got 2.6.12.3 from kernel.org

You're changing a kernel BUILDING parameter here. It will not have any
effect until you recompile your kernel, so kiss your debian pre-compiled
kernel goodbye ;-)

There are actually several HOWTO's for kernel (re)building, btw.

If you are going to do this, you need to apply this patch as well (see
attachment) or your computer will lock up every now and then.

If you have built the new kernel and booted it, your cd/dvd drive will
now be claimed by libata and show up as /dev/scd0 instead of /dev/hdc
(or similar). Hdparm -d 1 will not work (either), but DMA will be used
anyway.

I added the patch you attached, recompiled, rebooted and still can't
use /dev/scd0 (not a valid block device), here's what I get with dmes|
grep ata:

libata version 1.11 loaded.
ata_piix version 1.03
ata: 0x170 IDE port busy
ata1: SATA max UDMA/133 cmd 0x1F0 ctl 0x3F6 bmdma 0xBFA0 irq 14
ata1: dev 0 cfg 49:0f00 82:746b 83:7fe9 84:4023 85:f469 86:3e49 87:4023
88:203f
ata1: dev 0 ATA, max UDMA/100, 117210240 sectors: lba48
ata1: dev 0 configured for UDMA/100
scsi0 : ata_piix

Thanks,
Dave