Date: Wed, 24 Sep 2008 08:27:19 -0500 From: Nathan Whitehorn <nwhitehorn@freebsd.org> To: Marco Trillo <marcotrillo@gmail.com> Cc: freebsd-ppc@freebsd.org Subject: Re: Call for testers: Apple ATA DMA Message-ID: <48DA4037.9000508@freebsd.org> In-Reply-To: <b9c23c9f0809240338g61e93beoba429ea319a9d56@mail.gmail.com> References: <48D389EE.9000207@FreeBSD.org> <48D3AD50.8070505@freebsd.org> <48D69679.1080701@freebsd.org> <48D7F437.1040603@FreeBSD.org> <645CD2B8-11A0-42E8-B5F9-C04DCF21F763@mac.com> <48D84C12.7070207@freebsd.org> <0DD89065-9CF3-45E4-89A0-70D6BBB9621D@mac.com> <48D92D44.6080807@freebsd.org> <b9c23c9f0809240338g61e93beoba429ea319a9d56@mail.gmail.com>
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Marco Trillo wrote: > Hi Nathan, > > I tested the patch on a eMac G4 "USB 2.0" (PowerMac6,4). It has an ata-3 macio cell and a Kauai controller. > > acd0: DVDR <HL-DT-ST RW/DVD GCC-4481B/2.05> at ata0-master WDMA2 > ad0: 38166MB <Seagate ST340015A 3.01> at ata1-master UDMA100 > WARNING: WITNESS option enabled, expect reduced performance. > acd0: WARNING - SETFEATURES SET TRANSFER MODE taskqueue timeout - completing request directly > acd0: TIMEOUT - READ_BIG retrying (1 retry left) > acd0: WARNING - SETFEATURES SET TRANSFER MODE taskqueue timeout - completing request directly > acd0: TIMEOUT - READ_BIG retrying (0 retries left) > acd0: WARNING - SETFEATURES SET TRANSFER MODE taskqueue timeout - completing request directly > acd0: FAILURE - READ_BIG timed out > ... > And then the same cycle starts again. > > This looks similar to the problems Marcel reported, but in this case the Kauai controller only has one device attached, the hard disk; as the CD drive is on the ata-3 macio controller instead. Ugh. I really don't know, and am flying blind without hardware. If you disable ATAPI DMA or the macio controller, does ad0 at least work? -Nathan
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