Manuel Bouyer <bouyer@antioche.lip6.fr> writes:

> Please apply the attached patch to the wdc_obio.c I posted yesterday

Hm. This gives:

wdc0 at obio0 offset 0x1f000 irq 19: DMA transfer
atapibus0 at wdc0 channel 0: 2 targets
cd0 at atapibus0 drive 1: <MATSHITADVD-ROM SR-8176, , MA24> type 5 cdrom removable
cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
wd0 at wdc0 channel 0 drive 0: <IBM-DJSA-220>
wd0: drive supports 16-sector PIO transfers, LBA addressing
wd0: 19077 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 39070080 sectors
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 4 (Ultra/66)
ata4 conf = 0x10328ca, cyc = 8 (55 ns), act = 0 (0 ns), inact = 6
wd0(wdc0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33) (using DMA data transfers)
cd0(wdc0:0:1): using PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33) (using DMA data transfers)
...
root on wd0a dumps on wd0b
wdc0:0:0: lost interrupt
	type: ata tc_bcount: 512 tc_skip: 0
wdc0:0:0: intr with DRQ (st=0x58)
wd0: transfer error, downgrading to Ultra-DMA mode 1
ata4 conf = 0x14328ca, cyc = 10 (75 ns), act = 0 (0 ns), inact = 6
wd0(wdc0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 1 (using DMA data transfers)
cd0(wdc0:0:1): using PIO mode 4, DMA mode 2, Ultra-DMA mode 1 (using DMA data transfers)
wd0c: device timeout reading fsbn 0 (wd0 bn 0; cn 0 tn 0 sn 0), retrying
wdc0:0:0: lost interrupt
	type: ata tc_bcount: 512 tc_skip: 0
wdc0:0:0: intr with DRQ (st=0x58)
wd0: transfer error, downgrading to DMA mode 2
ata4 conf = 0x14328ca, cyc = 10 (75 ns), act = 0 (0 ns), inact = 6
wd0(wdc0:0:0): using PIO mode 4, DMA mode 2 (using DMA data transfers)
cd0(wdc0:0:1): using PIO mode 4, DMA mode 2, Ultra-DMA mode 1 (using DMA data transfers)
wd0c: device timeout reading fsbn 0 (wd0 bn 0; cn 0 tn 0 sn 0), retrying
wd0: soft error (corrected)


... but seems to work. Ejecting the cd gives:

wdc0:0:1: lost interrupt
        type: atapi tc_bcount: 32 tc_skip: 0
wdc0:0:1: device timeout, c_bcount=32, c_skip=0
cd0: transfer error, downgrading to DMA mode 2
ata4 conf = 0x328ca, cyc = 16 (120 ns), act = 10 (70 ns), inact = 6
wd0(wdc0:0:0): using PIO mode 4, DMA mode 2 (using DMA data transfers)
cd0(wdc0:0:1): using PIO mode 4, DMA mode 2 (using DMA data transfers)
cd0(wdc0:0:1): invalid return code from adapter: 3

but again works.

I'll post here if it fails....

        - Nathan