fdc(4) regression: fdc0 fails to probe

Bruce Cran bruce at cran.org.uk
Tue Aug 18 14:15:00 UTC 2009

On Tue, 18 Aug 2009 08:30:58 -0400
John Baldwin <jhb at freebsd.org> wrote:

> On Tuesday 18 August 2009 7:24:53 am Bruce Cran wrote:
> > There appears to be a regression between 7.2 and 8.0-BETA2 with
> > fdc(4): it used to find and attach fdc0, but now it fails to probe
> > fdc0 but appears to initially find a nonexistant fdc1:
> > 
> > fdc0: No FDOUT register!
> > fdc0 failed to probe at port 0x3f0 irq 6 drq 2 on isa0
> > 

> I think fdc0 will work if you remove the fdc0 hints.

Removing /boot/device.hints made fdc0 probe again, but /dev/fd0 didn't
appear because during boot after the probe it timed out on input/output
for fdc0 this time. I'll investigate some more later.

Bruce Cran

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