Re: [RFT][PATCH] swsusp: Change code ordering related to ACPI

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On 5/5/07, Rafael J. Wysocki <[email protected]> wrote:
On Saturday, 5 May 2007 01:11, Ray Lee wrote:
> On 5/4/07, Rafael J. Wysocki <[email protected]> wrote:
> > The change of the hibernation/suspend code ordering made before 2.6.21 has
> > caused some systems to have problems related to ACPI.  In particular, the
> > 'platform' hibernation mode doesn't work any more on some systems.
>
> It seems that somewhere between 2.6.21-rc4 and 2.6.21 final my laptop
> stopped being able to come out of suspend to RAM. Before I start
> bisecting (again, sigh), is this ringing any bells for anyone? In
> particular your, patch (snipped) that deals with hibernation, would it
> also affect suspend to RAM?

Not this particular one, but you may try to move pm_finish() after
resume_console() in kernel/power/main.c:suspend_prepare() and see if that
helps.

If it doesn't help, then try to compile the kernel with NO_HZ and
HIGH_RES_TIMERS unset.  If that doesn't help, you may try with HPET_TIMER
unset additionally.
Okay, my system is doing it with a known good kernel as well
(2.6.21-rc4), so this is something else. Please ignore my report for
now. In the meantime, I'll be downgrading my hal and drm to what they
were a week ago to see if that fixes the problem.

(I knew better than to change more than one thing at a time, really I
did. Sigh.)

Thanks for your help regardless,

Ray
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