On Sun, 31 Jul 2005, Francisco wrote:

> On Fri, 29 Jul 2005, Norbert Koch wrote:
>
> >> I have a one year old Hitachi Travelstar 60GB/4200RPM disk. This
> >> night and since then, I get these errors:
> >> ad0: TIMEOUT - READ_DMA retrying (2 retries left) LBA=48926527
> >> ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=48926527
> >> ad0: FAILURE - READ_DMA timed out
>
> > I've seen these error messages too. And also WRITE_DMA TIMEOUT!
> > You may have a hardware problem, but I'm not convinced.
>
> I don't recall if it was the exact errors, but I had some simmilar ones.
> For some reason 5.4 didn't like my ATA100 drive and had to slow down the
> communication speed to the drive.
>
> In my case I added to /usr/local/etc/rc.d a script with
>
> /sbin/atacontrol mode 1 udma66 pio4
>
> Basically slowing down the channel to the drive.. the pio4 is for the
> CDrom and that was it's normal speed.

Thanks! Well, I wish that I had known that before I tried
reinstalling the system.

Thanks again, Erik

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