UltraDMA on IBM Thinkpad

[<ira@crosswinds.net>]

Hi,

I'm using 3.1-stable on my IBM Thinkpad iSeries 1467.
I've problem with ATA disk and DVD drive.
The fact is that OpenBSD downgrade to Pio Mode and so my CPU is always working for disk accesses.
This didn't happen with Win98SE and Slackware 8, so
I would like to know if this could be a bug or simply a missing driver.

These lines from my dmesg...


pciide0 at pci0 dev 15 function 0 "Acer Labs M5229 UDMA IDE" rev 0x20: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility
wd0 at pciide0 channel 0 drive 0: <IBM-DBCA-204860>
wd0: 16-sector PIO, LBA, 4645MB, 10068 cyl, 15 head, 63 sec, 9514260 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2
atapiscsi0 at pciide0 channel 1 drive 0
scsibus0 at atapiscsi0: 2 targets
atapiscsi0(pciide0:1:0): using PIO mode 3
cd0 at scsibus0 targ 0 lun 0: <TOSHIBA, DVD-ROM SD-C2202, 1433> SCSI0 5/cdrom removable
cd0(pciide0:1:0): using PIO mode 3
[...]
dkcsum: wd0 matched BIOS disk 80
root on wd0a
rootdev=0x0 rrootdev=0x300 rawdev=0x302
wd0a: DMA error reading fsbn 64 of 64-79 (wd0 bn 127; cn 0 tn 2 sn 1), retrying
wd0: soft error (corrected)
wd0: transfer error, downgrading to Ultra-DMA mode 1
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 1
wd0a: DMA error reading fsbn 6979072 of 6979072-6979087 (wd0 bn 6979135; cn 434 tn 109 sn 58), retrying
wd0: soft error (corrected)

and all starts...

Thanks.

IRA