Messages in this thread | | | Date | Fri, 14 Jul 2006 13:39:26 -0400 | From | Mark Lord <> | Subject | Re: LibPATA code issues / 2.6.17.3 (What is the next step?) |
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Justin Piszcz wrote: > They are Western Digital 400* drives. > > [4294678.049000] Vendor: ATA Model: WDC WD4000KD-00N Rev: 01.0 > [4294678.050000] Vendor: ATA Model: WDC WD4000KD-00N Rev: 01.0 > > On a SiL controller, it also happens when they are on a promise > controller too. > > On Fri, 14 Jul 2006, Mark Lord wrote: > >> Justin Piszcz wrote: >>> >>> opcode=0x35 & opcode=0xca >> >> Those are non-DMA WRITE opcodes. Using PIO for I/O is pretty rare >> these days, >> so I'm betting that this is not a hard disk device -- compactflash?
Okay. So why are we issuing PIO WRITE commands to drives that obviously should only be sent DMA commands by libata?
Perhaps that's the bug. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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