Messages in this thread | | | Date | Sun, 30 Nov 2003 18:10:06 +0100 | From | Jens Axboe <> | Subject | Re: Silicon Image 3112A SATA trouble |
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On Sun, Nov 30 2003, Jeff Garzik wrote: > Bartlomiej Zolnierkiewicz wrote: > >On Sunday 30 of November 2003 17:51, Jens Axboe wrote: > >>>Tangent: My non-pessimistic fix will involve submitting a single sector > >>>DMA r/w taskfile manually, then proceeding with the remaining sectors in > >>>another r/w taskfile. This doubles the interrupts on the affected > >>>chipset/drive combos, but still allows large requests. I'm not terribly > >> > >>Or split the request 50/50. > > > > > >We can't - hardware will lock up. > > Well, the constraint we must satisfy is > > sector_count % 15 != 1
(sector_count % 15 != 1) && (sector_count != 1)
to be more precise :)
-- Jens Axboe
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