Messages in this thread |  | | | Date | Sun, 30 Nov 2003 12:06:08 -0500 | | From | Jeff Garzik <> | | Subject | Re: Silicon Image 3112A SATA trouble |
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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
(i.e. "== 1" causes the lockup)
Beyond that, any request ratio should be ok AFAIK...
Jeff
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