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    SubjectRe: 2.6.10-mm2: swsusp regression
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    Hi.

    AMD64 doesn't have MTRRs, does it? If it does, I'd bet on an SMP hang.

    Nigel

    On Fri, 2005-01-07 at 10:48, Pavel Machek wrote:
    > Hi!
    >
    > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.10/2.6.10-mm2/
    > > > > >
    > > > > > - Various minorish updates and fixes
    > > > >
    > > > > There's an swsusp regression on my box (AMD64) wrt -mm1. Namely,
    > > 2.6.10-mm2
    > > > > does not suspend, but hangs solid right after the critical section, 100%
    > > of
    > > > > the time.
    > > >
    > > > can you comment out device_power_{down,up} from
    > > > swsusp_{suspend,resume} and see what happens?
    > >
    > > It works just fine.
    >
    > Ok, problem is that device_power_{down,up} is right thing, and
    > neccessary for many machines to work...
    >
    > ...so... could you go through sysdev_register()s, one by one,
    > commenting them to see which one causes the regression? That driver
    > then needs to be fixed.
    >
    > Go after mtrr and time in first places.
    > Pavel
    > PS: Probably drop andrew from reply; he probably gets enough mail
    > anyway. I want this one to go to him so that he does not back up the
    > patch, through.
    --
    Nigel Cunningham
    Software Engineer, Canberra, Australia
    http://www.cyclades.com

    Ph: +61 (2) 6292 8028 Mob: +61 (417) 100 574

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