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    SubjectRe: Linux v2.6.21-rc3
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    On Wed, 2007-03-07 at 15:22 +0100, Thomas Gleixner wrote:
    > On Tue, 2007-03-06 at 20:59 -0800, Linus Torvalds wrote:
    > > We've finally hopefully started to put a dent in the regressions,
    > > especially the suspend/resume problems introduced since 2.6.20.
    >
    > Still having SATA breakage on resume:
    >
    > Caught that one (from screen)
    >
    > ATA: abnormal status 0x7F on port 0x000118cf
    > irq 21: nobody cared (try booting ......)
    > ...
    > Disabling IRQ #21
    >
    >
    > During normal boot I see the "ATA: abnormal status 0x7F on port
    > 0x000118cf" once, but there the system behaves normal

    I enabled ATA_DEBUG and hacked it to provide debug output only on
    resume. Now the disk resumes and no stale interrupt happens.

    Full log at: http://www.tglx.de/private/tglx/sata-2.6.21-rc3.log

    Both states are fully reproducible. (DEBUG ON/OFF == GOOD/BAD)

    /me continues the libata exploration

    tglx


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