Page fault, GEOM problem??
Michael S. Eubanks
mse_software at charter.net
Mon Jan 23 05:15:42 PST 2006
On Mon, 2006-01-23 at 10:24 +0100, Johan Ström wrote:
> On 23 jan 2006, at 09.53, Michael S. Eubanks wrote:
> > On Mon, 2006-01-23 at 06:43 +0100, Johan Ström wrote:
> > Wish I could be of more help. :) Have you tried to toggle the sysctl
> > dma flags? I've seen similar posts in the past with read timeouts
> > caused from dma being enabled.
> > # sysctl -a | grep dma
> > ...
> > hw.ata.ata_dma: 1 <=== Try turning this one off (1 ==> 0).
> > hw.ata.atapi_dma: 1
> > ...
> Disabling DMA, wouldnt that give me pretty bad performance?
> > -Michael
If it was not the problem, you could always change it back. It *should*
be possible to simply set the control mode on those two disks (``man
rc.early'', ``man atacontrol''). Unfortunately, the problem is noted as
errata in several FreeBSD versions tending to appear on SATA disks. I
believe this is also a problem with some linux setups. If you google
``FreeBSD hw.ata.ata_dma RELEASE'' you will eventually find the
following page relating to Asus motherboards:
I picked it out based on the following line in the dmesg output:
> Nov 29 20:46:09 elfi kernel: ACPI APIC Table: <ASUS A7V333 >
I'd say it's worth a shot. You might even try turning both the flags
off temporarily to see what you get. Your guess is as good as mine. :)
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