[linux-pm] suspending to disk on FC6 not working

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On Wed, 2006-09-27 at 00:26 +0200, Rafael J. Wysocki wrote:
> On Wednesday, 27 September 2006 00:15, Pavel Machek wrote:
> > Hi!
> > 
> > > > > Please boot the kernel with "2" appended to the command line, so the system
> > > > > goes to the 2nd runlevel (ie. without network servers and X).  Then log in
> > > > > as root, do "echo 8 > /proc/sys/kernel/printk" and
> > > > > "echo disk > /sys/power/state".  The system should suspend to disk and power
> > > > > off the machine.  If it doesn't do that (ie. if it returns to the shell
> > > > > immediately), please do "dmesg > dmesg.log" and send the dmesg.log file
> > > > > to me.
> > > > 
> > > > The system didn't power off, it returned to the shell. I attached dmesg.
> > > 
> > > Thanks.
> > > 
> > > Pavel, it looks like we have a problem with the CPU suspend on this box:
> > > 
> > > acpi acpi: freeze
> > > PM: snapshotting memory.
> > > Class driver suspend failed for cpu0
> > > Could not power down device &q->lock: error -22
> > > Some devices failed to power down, aborting suspend
> > > acpi acpi: resuming
> > 
> > That looks like cpufreq/acpi, no?
> > 
> > Can we get bugzilla.kernel.org report?
> 
> Ah, it may be the same bug as http://bugzilla.kernel.org/show_bug.cgi?id=7188
> 
> > Can you try without acpi processor and cpufreq?
> 
> First, please try to remove the acpi_cpufreq module before the suspend.
> 
> Greetings,
> Rafael

Yep sure is. I removed the acpi_cpufreq module and my box suspended and
resumed nicely, from gnome even.

This has not been working since 2.6.17. Something in cpufreq in the
2.6.18pre series broke.

-Louis



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