Re: [PATCH] Fix failure to resume from initrds.

From: Rafael J. Wysocki
Date: Tue Sep 11 2007 - 07:43:38 EST


On Tuesday, 11 September 2007 13:27, Nigel Cunningham wrote:
> Hi.
>
> On Tuesday 11 September 2007 21:04:22 Rafael J. Wysocki wrote:
> > On Tuesday, 11 September 2007 05:54, Nigel Cunningham wrote:
> > > Hi all.
> > >
> > > Commit 831441862956fffa17b9801db37e6ea1650b0f69 (Freezer: make kernel
> threads
> > > nonfreezable by default) breaks freezing when attempting to resume from an
> > > initrd, because the init (which is freezeable) spins while waiting for
> another
> > > thread to run /linuxrc, but doesn't check whether it has been told to
> enter
> > > the refrigerator.
> >
> > Hm.
> >
> > I use a resume from an initrd on a regular basis and it works without the
> patch
> > below.
> >
> > I think we need to investigate what happens in your test case a bit.
>
> Ah. That makes me realise that I see that too - my AMD64 uniprocessor laptop
> didn't need the patch (guess that's why I didn't notice the need and ack'd
> the patch). But my x86 SMP machine... it needs this. I'll see if they're
> running on different processors.

Well, strange. My x86_64 SMP machines don't need the patch too.

Greetings,
Rafael
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