Messages in this thread | | | Date | Wed, 02 Jan 2008 18:27:00 -0600 | From | Robert Hancock <> | Subject | Re: sata_nv + ADMA + Samsung disk problem |
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Tejun Heo wrote: > Robert Hancock wrote: >> Jeff Garzik wrote: >>> Tejun Heo wrote: >>>> Thanks a lot for the detailed explanation. Nvidia ppl, any ideas? >>>> FLUSH is used regularly. We really need to fix this. >>> >>> I reiterate my opinion :) ... We should remove ADMA support from >>> sata_nv. It's only in a few chips, it's not appearing in any new >>> chips, and nasty problems have lingered since ADMA support was >>> introduced. >>> >>> Definitely sounds like we should disable ADMA by default for >>> 2.6.24-rc, too. >> I wouldn't agree.. It's only in a few chips (CK804/MCP04), but those >> chips are very common in desktop, workstation, even some server >> machines. Given the huge number of these chips out there, problem >> reports have been quite rare. > > I agree with Jeff here. Maybe not remove but disable it by default and > when enabling warn loudly. NCQ just doesn't enough for its cost when > the cost includes erratic behaviors. Only very small fraction of error > cases actually make to bugzilla or this mailing list. > > Nvidia gents, is there anyway (be it NDA or whatever) to get Robert or > any of us technical documentation? > > Thanks.
Last I heard, NVIDIA management gave the thumbs down to any more NDAs for ADMA documentation. It would be nice if they would reconsider. Apparently Jeff does have the docs, though..
-- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from hancockr@nospamshaw.ca Home Page: http://www.roberthancock.com/
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