Re: UltraDMA on IBM Thinkpad

[Olivier Cherrier <oc@karedas.cediti.be>]

On Mon, Jun 17, 2002 at 12:34:04PM -0400, ira@crosswinds.net wrote:
> 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)
 

You can also chek your cable.
I already saw DMA mode downgrade caused by bad cables...

-- 
oc