Re: libata (pata_via) timeouts causing unusable device: the famous DRDY issue?

[Andras Mantia]

On Friday 23 May 2008, Jeff Garzik wrote:
> Andras Mantia wrote:
> > Hi,
> >
> >  since my upgrade to openSUSE 11.0, which comes with 2.6.25.4, soon
> > after I start using my DVD player, I get the following in the log:
> >
> > May 23 21:34:04 stein klogd: ata1.00: exception Emask 0x0 SAct 0x0
> > SErr 0x0 action 0x2 frozen
> > May 23 21:34:04 stein klogd: ata1.00: cmd
> > a0/01:00:00:00:08/00:00:00:00:00/a0 tag 0 dma 2048 in
> > May 23 21:34:04 stein klogd:          cdb 28 00 00 00 01 b3 00 00 
> > 01 00 00 00 00 00 00 00
> > May 23 21:34:04 stein klogd:          res
> > 40/00:02:00:08:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
> > May 23 21:34:04 stein klogd: ata1.00: status: { DRDY }
>
> DRDY == device ready, and it occurs billions of times per day during
> normal use.

That wouldn't be a problem if it would not block the drive completely 
and cause my load to go up to extreme values like 50 or so.

> There is no "famous DRDY issue", you are simply seeing timeouts.

Well, I found that many have this "error" and have real problems. 

> Have you tried all of: pci=nomsi, acpi=off, or noapic?
>

Not yet, I will try them (but as I said it worked fine before, without 
any such kernel options).

Andras

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