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    SubjectRe: Hibernation Redesign
    Hi!

    > > > Freezing of tasks is slowing down suspend. Don't know how serious
    > > > this is, suspend is pretty fast, but could possibly be even faster.
    > >
    > > It's FUD. Freezing of tasks normally takes next to no time. I've never
    > > understood the rediculously long timeout it has. If freezing succeeds, all
    > > processes are frozen within 1/2 a second tops. If it fails, nothing is going
    > > to change in the following 19.5 seconds (or whatever it is if I don't
    > > remember the value properly).
    >
    > Right. The 20s timeout is again a sign of brokenness.

    Well, "scenario 1/2 - simple/tricky deadlock" is a sign of brokenness,
    too.

    > If we expect something to fail, it should fail immediately, without
    > waiting for arbitrary timeouts.

    Agreed that freezer is not nice, but core issue here is that fuse
    allows userspace tasks to hold kernel locks... bad.
    Pavel
    --
    (english) http://www.livejournal.com/~pavelmachek
    (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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