On 02/21/2010 04:11 AM, Cengiz Günay wrote: >> Does the attached patch make any difference? > > Not that I can tell. I still get an infinite loop of ata4 errors. I > attached a full dmesg output with the patch. Note that I have both the > patches disable-clear-ua and drain-from-atapi-pio-bytes applied at the > same time. Hmmm... So, DRQ gets cleared? That's strange. When then the 18 extra bytes happen? Can you please try this one? -- tejun