Re: swappiness=0 makes software suspend fail.

From: Pavel Machek
Date: Thu Jun 03 2004 - 07:11:53 EST


Hi!

> >>>btw, software suspend wrecks your swap partition if you suspend to swap
> >>>but
> >>>do not resume from swap - you need to run mkswap again. Seems odd.
> >>
> >>I think it's intentional, so that if you you boot to a different kernel
> >>swapon -a won't automount the swap partition and hork your saved image.
> >
> >
> >Actually, we *want* to hork that saved image, because it is extremely
> >dangerous to resume from it.
> >
> >We also want to kill suspend signature ASAP, so that if driver kills
> >resume and user presses reset, we will not try to resume again and
> >fail in exactly same way.

> Suspend2 fixes the header and records when you've attempted to resume from
> it. If you try a second time it gives you the option of invalidating the
> image or trying to resume. Pavel, feel free to grab the code out of
> suspend2 if you want.

It should be simpler to just move already-existing signature changing
code to right place, but thanks anyway.
Pavel

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