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Message-ID: <Pine.LNX.4.64.0607141418240.4210@p34.internal.lan> Date: Fri, 14 Jul 2006 14:18:33 -0400 (EDT) From: Justin Piszcz <jpiszcz@...idpixels.com> To: Mark Lord <liml@....ca> cc: Alan Cox <alan@...rguk.ukuu.org.uk>, Jeff Garzik <jgarzik@...ox.com>, Sander <sander@...ilis.net>, linux-kernel@...r.kernel.org, IDE/ATA development list <linux-ide@...r.kernel.org> Subject: Re: LibPATA code issues / 2.6.17.3 (What is the next step?) On Fri, 14 Jul 2006, Mark Lord wrote: > 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. > Jeff/Alan -- ? Could this be it? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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