> Ok. I did what you suggested. Did not work. My log on bootup says:
>
> VP_IDE: not 100% native mode: will probe irqs later
> ide0: BM-DMA at 0x6000-0x6007, BIOS settings: hda:pio, hdb:pio
> ide0: VIA Bus-Master (U)DMA Timing Config Success
> ide1: BM-DMA at 0x6008-0x600f, BIOS settings: hdc:pio, hdd:pio
> ide1: VIA Bus-Master (U)DMA Timing Config Success
You have driver version 0.1
> hda: Maxtor 87000D8, ATA DISK drive
> hdb: probing with STATUS(0x00) instead of ALTSTATUS(0x50)
> hdb: probing with STATUS(0x00) instead of ALTSTATUS(0x50)
What in the world is going on here?
Why is it hunting for a noexistant drive?
> hdc: Memorex CRW-1622, ATAPI CDROM drive
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> ide1 at 0x170-0x177,0x376 on irq 15
> hda: Maxtor 87000D8, 6679MB w/256kB Cache, CHS=851/255/63
Where did the (U)DMA reporting flag goto??? ^^^^
This is a UDMA drive and tested.
> thus idedma is not enabled on bootup. I enable it later with
This is a problem..........has this always been the case with disks?
> hdparm -m16 -d1 -u1 -c3 -W1 -k1 -K1 /dev/hda
>
> but do not do anything for /dev/hdc which is on a different controller.
This is good.
> Even if this would be a problem then the ide driver would reset and
> disable DMA and thus the next attempt should work. It aint.
>
> On Tue, 23 Mar 1999, Andre M. Hedrick wrote:
>
> > Let me guess::
> > Under 2.0.35 you do not have DMA support for your CD-RW, correct?
> Correct. Neither under 2.2.4
>
> > Now you have DMA support for your CD-RW, correct?
> Never tried DMA with CDRW
The kernel does not yet report if you are using (U)DMA with any type/class
of ide-cdrom device.
What does hdparm -v /dev/hdc yield?
Andre Hedrick
The Linux IDE guy -- http://www.dyer.vanderbilt.edu/server/udma/
APC UPS Daemon Support Center.
http://www.brisse.dk/site/apcupsd/
Going FSF/GNU or GPL2 source soon.
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