From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: linux-pm@lists.linux-foundation.org
Subject: Re: (fwd) empty /sys/power/state?
Date: Sun, 20 May 2007 01:20:45 +0200 [thread overview]
Message-ID: <200705200120.45892.rjw@sisk.pl> (raw)
In-Reply-To: <464F8395.4080300@s5r6.in-berlin.de>
On Sunday, 20 May 2007 01:09, Stefan Richter wrote:
> Rafael J. Wysocki wrote:
> > Can you please try to set CONFIG_SOFTWARE_SUSPEND and see if that helps?
>
> I will do so. BTW,
>
> config SOFTWARE_SUSPEND
> bool "Software Suspend (Hibernation)"
> depends on PM && SWAP && (((X86 || PPC64_SWSUSP) && (!SMP ||
> SUSPEND_SMP)) || ((FRV || PPC32) && !SMP))
>
> and
>
> config SUSPEND_SMP
> bool
> depends on HOTPLUG_CPU && (X86 || PPC64) && PM
>
> So, no HOTPLUG_CPU -> no SOFTWARE_SUSPEND. I don't expect a
> single-processor, dual-core PC to require CPU hotplugging support.
We use the CPU hotplug code for disabling/enabling nonboot CPUs.
You need to enable it to be able to suspend (BTW, it's also necesary for
the suspend to RAM).
Greetings,
Rafael
next prev parent reply other threads:[~2007-05-19 23:20 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <464F53C2.8070802@s5r6.in-berlin.de>
2007-05-19 19:55 ` (fwd) empty /sys/power/state? Stefan Richter
2007-05-19 20:07 ` Stefan Richter
2007-05-19 20:15 ` Stefan Richter
2007-05-19 21:15 ` Alan Stern
2007-05-19 21:39 ` Stefan Richter
2007-05-19 22:53 ` Rafael J. Wysocki
2007-05-19 23:09 ` Stefan Richter
2007-05-19 23:18 ` Stefan Richter
2007-05-19 23:20 ` Rafael J. Wysocki [this message]
2007-05-19 23:33 ` Stefan Richter
2007-05-19 23:49 ` Stefan Richter
2007-05-20 12:36 ` Rafael J. Wysocki
2007-05-20 13:19 ` Stefan Richter
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