High disk load +mount/atacontrol/NFS/SMBFS crashes the system

Alejandro Pulver alepulver at FreeBSD.org
Wed Apr 25 00:20:39 UTC 2007


On Mon, 23 Apr 2007 22:59:44 -0500
"Rick C. Petty" <rick-freebsd at kiwi-computer.com> wrote:

> On Mon, Apr 23, 2007 at 09:58:58PM -0300, Alejandro Pulver wrote:
> > 
> > In the machine which was recently upgraded to 6.2 using "atacontrol"
> > when the disk is reading/writing crashes the system half or more of the
> > times.
> 
> Which atacontrol command were you doing?  Just plain "atacontrol" shouldn't
> do anything useful.
> 

To change DMA modes, like:

# atacontrol mode ad0 UDMA100

Best Regards,
Ale
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