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SubjectRe: [REGRESSION 2.6.34] Suspend fails in pm_test=processor on Dell laptop
Date
On Tuesday 20 April 2010, Rafael J. Wysocki wrote:
> On Sunday 18 April 2010, Ben Gamari wrote:
> > Hey all,
> >
> > It seems that something in the 2.6.34 merge cycle has broken suspend to RAM on
> > my Dell Latitude D830. While suspend has been rock solid for several release
> > cycles, as of 2.6.34-rc4 it locks up on suspend. All of the pm_test options up
> > to processor work fine, precluding a driver issue.
>
> Hmm, does the "processors" work?

Sorry, the subject says it doesn't.

> > Unfortunately, I've been unable to get any useful output from the serial
> > console during suspend. I'll try bisecting and report back when I have more
> > details. Let me know what else I can do to help.
>
> I can't reproduce this, so it looks hardware or BIOS-related. Or it's an
> obscure x86 bug.

Does switching CPU1 on/off by echoing 0/1 to

/sys/devices/system/cpu/cpu1/online

work?

Rafael


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