oversized DMA transfer attempt

[Justin Sherrill]

With it being on the ATA bus, to a CD/DVD device - my first hunch is that
the cable is having trouble.  Just a hunch, though, as I haven't seen it
before.

Next guess would be some sort of odd configuration in BIOS for how the
optical drive is connected?  Unplug it and see if the problem goes away.


On Sun, May 25, 2014 at 6:26 AM, Zachary Crownover <
zachary.crownover at gmail.com> wrote:

>
> I'm getting this error 609 times / second on 3.6.2 RELEASE.
>
> ata1: FAILURE - oversized DMA transfer attempt 69632 > 65536
> acd0: setting up DMA failed
>
>
>
> > sudo grep DMA /var/log/messages | grep 03:00:30 | grep ata1 | wc -l
>      609
>
>
> The error is contant and causing the HAMMER daemon to peg the CPU
> intermittently. Any ideas on what might be going on?
>
> --
> Sincerely,
>
> Zachary Crownover
>
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