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    SubjectRe: 2.6.21-rc1: known regressions (part 2)
    On Tue, Feb 27 2007, Jens Axboe wrote:
    > On Tue, Feb 27 2007, Ingo Molnar wrote:
    > >
    > > * Jens Axboe <jens.axboe@oracle.com> wrote:
    > >
    > > > > > x60 doesn't resume from S2R either, it doesn't matter if
    > > > > > CONFIG_NO_HZ is set or not though. 2.6.20 worked fine.
    > > > >
    > > > > It somehow works for me. As long as I do not play with bluetooth and
    > > > > suspend to disk...
    > > >
    > > > It locks solid here on resume, going back to 2.6.20 makes it work
    > > > perfectly again. In between 2.6.20 and 2.6.21-rc1 some ACPI change
    > > > broke resume, but that got fixed. Some other change later snuck in
    > > > that broke it AGAIN for me, sigh.
    > > >
    > > > I don't use bluetooth nor suspend to disk.
    > >
    > > resume is stock on my T60 too. So you mean v2.6.21-rc1 vanilla works
    > > fine? Do you know a commit ID that works for sure? I'd like to bisect
    >
    > Nope, 2.6.21-rc1 vanilla does not work. 2.6.20 works. 2.6.20-gitX worked
    > until some acpi change broke it, the below patch fixed that for me. That
    > got merged in a later 2.6.20-gitY, but then some other patch broke it
    > again so that 2.6.21-rc1 is broken. Not much luck there :-)
    >
    > So it looks like:
    >
    > - c5a7156959e89b32260ad6072bbf5077bcdfbeee broke 2.6.20-git
    > - f3ccb06f3b8e0cf42b579db21f3ca7f17fcc3f38 should fix that.
    > - Something later than f3ccb06f3b8e0cf42b579db21f3ca7f17fcc3f38 broke it
    > again.
    >
    > > this, but this way i might just find that ACPI change that got already
    > > fixed later on (and then got re-broken).
    >
    > Yeah, it gets trickier. I'll try
    > f3ccb06f3b8e0cf42b579db21f3ca7f17fcc3f38 now and see if that works, then
    > bisect to 2.6.21-rc1 to find the other offender. I hope the other
    > offender didn't get added before
    > f3ccb06f3b8e0cf42b579db21f3ca7f17fcc3f38, we'll see :-)

    f3ccb06f3b8e0cf42b579db21f3ca7f17fcc3f38 works for me, starting bisect.

    --
    Jens Axboe

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