Re: [REGRESSION 2.6.34] Suspend fails in pm_test=processor on Dell laptop

[Rafael J. Wysocki]

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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/