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    SubjectRe: 2.1.111: IDE DMA disabled?
    Date
    From
    In message <199807262242.PAA29484@dm.cobaltmicro.com>, "David S. Miller" 
    writes
    :
    +-----
    | Date: Sun, 26 Jul 1998 13:30:37 -0700 (PDT)
    | From: Linus Torvalds <torvalds@transmeta.com>
    |
    | Essentially, everything I found looked more like timing changes,
    | not like some fundamental bug. Which is why I'm suspicious of
    | timing and hardware issues.
    |
    | This is precisely the sort of behavior I saw with my crappy WDC disk
    | on my workstation. Some kernels would give me corruption once every 3
    | to 4 months with DMA enabled, others would give me corruption once a
    | day.
    +--->8

    Ouch. I'm tasked with supporting a few hundred Dells, all with WDC drives
    and all running Linux (2.0, so far). And all with UDMA not only enabled,
    but *forced* via hdparm because the users demand it and don't believe it's
    already turned on.

    Methinks I'm in trouble.

    (Although, considering that we already have a strong dislike of WDC drives
    --- "thwacketa-thwacketa" sound familiar to anyone? --- should this come to
    pass we may be junking a bunch of crap drives.)

    --
    brandon s. allbery [os/2][linux][solaris][japh] allbery@kf8nh.apk.net
    system administrator [WAY too many hats] allbery@ece.cmu.edu
    electrical and computer engineering
    carnegie mellon university (bsa@kf8nh is still valid.)



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