write_dma error

Zane C.B. v.velox at vvelox.net
Sun Apr 19 16:59:14 UTC 2009


On Sun, 19 Apr 2009 14:36:40 +0100
Bruce Cran <bruce at cran.org.uk> wrote:

> On Sun, 19 Apr 2009 08:49:10 -0400
> Lowell Gilbert <freebsd-questions-local at be-well.ilk.org> wrote:
> 
> > Hmm.  ICRC errors are about the controller talking to the disk
> > electronics.  They don't generally have anything to do with the 
> > magnetic medium itself.
> > 
> > Try replacing the cable.
> 
> The only time I've seen ICRC errors was when FreeBSD was programming
> UDMA100 mode when I only had a UDMA33 cable installed. Overridding
> the mode using atacontrol solved it, as did installing a UDMA66
> cable.

I've seen the issue quit often in cheap, or long, UDMA100 cables as
well.
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