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From: Ashok Raj <ashok.raj@intel.com>
To: Nigel Cunningham <ncunningham@cyclades.com>
Cc: Ashok Raj <ashok.raj@intel.com>, Andrew Morton <akpm@osdl.org>,
	Pavel Machek <pavel@ucw.cz>,
	linux-kernel@vger.kernel.org, rjw@sisk.pl
Subject: Re: [rfc] fix Kconfig, hotplug_cpu is needed for swsusp
Date: Wed, 29 Mar 2006 15:47:48 -0800	[thread overview]
Message-ID: <20060329154748.A12897@unix-os.sc.intel.com> (raw)
In-Reply-To: <200603300936.22757.ncunningham@cyclades.com>; from ncunningham@cyclades.com on Thu, Mar 30, 2006 at 09:36:16AM +1000

On Thu, Mar 30, 2006 at 09:36:16AM +1000, Nigel Cunningham wrote:
> Hi.
> 
> 
> So if you have a single core x86, you want X86_PC, and if you have HT or SMP, 
> you want GENERICARCH? If so, could this be done via selects or depends or at 
> least defaults in Kconfig?

Yes, i think only SUSPEND_SMP is affect by this. I thought Rafael cced Pavel during 
that exchange, maybe i missed.

> 
> Regards,
> 
> Nigel

How about this patch.

Make SUSPEND_SMP depend on X86_GENERICARCH, since hotplug cpu requires !X86_PC 
due to some race in IPI handling.  See more discussion here

http://marc.theaimsgroup.com/?l=linux-kernel&m=114303306032338&w=2

Signed-off-by: Ashok Raj <ashok.raj@intel.com>
--------------------------------------------------------------

Index: linux-2.6.16-git16/kernel/power/Kconfig
===================================================================
--- linux-2.6.16-git16.orig/kernel/power/Kconfig
+++ linux-2.6.16-git16/kernel/power/Kconfig
@@ -96,5 +96,5 @@ config SWSUSP_ENCRYPT

 config SUSPEND_SMP
        bool
-       depends on HOTPLUG_CPU && X86 && PM
+       depends on HOTPLUG_CPU && X86 && PM && X86_GENERICARCH
        default y


-- 
Cheers,
Ashok Raj
- Open Source Technology Center

  reply	other threads:[~2006-03-29 23:47 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-03-29 22:08 Pavel Machek
2006-03-29 22:47 ` Andrew Morton
2006-03-29 23:09   ` Ashok Raj
2006-03-29 23:36     ` Nigel Cunningham
2006-03-29 23:47       ` Ashok Raj [this message]
2006-03-29 23:53         ` Nigel Cunningham
2006-03-30  0:12           ` Ashok Raj
2006-03-30  0:32             ` Nigel Cunningham
2006-03-30  0:13           ` Andrew Morton
2006-03-30  0:18             ` Nigel Cunningham
2006-03-30  3:01               ` Nigel Cunningham
     [not found]                 ` <20060330030657.GA10405@mars.ravnborg.org>
2006-03-30 10:11                   ` Roman Zippel
2006-03-30  8:24           ` Jan Engelhardt
2006-04-04  5:15             ` menuconfig search (Re: [rfc] fix Kconfig, hotplug_cpu is needed for swsusp) Randy.Dunlap
2006-04-04  6:01               ` Alexey Dobriyan
2006-04-04 15:12                 ` Randy.Dunlap
2006-04-08  8:42               ` Jan Engelhardt
2006-04-09  2:29                 ` Randy.Dunlap
2006-04-11 11:18                   ` Jan Engelhardt
2006-03-30  8:41         ` [rfc] fix Kconfig, hotplug_cpu is needed for swsusp Pavel Machek
2006-03-30 16:17           ` Rafael J. Wysocki
2006-03-29  0:30             ` Pavel Machek
2006-04-01 23:55               ` Ashok Raj
2006-03-30  3:24     ` Andrew Morton
2006-03-30 13:00       ` Ashok Raj
2006-03-30 13:17         ` Pavel Machek
2006-03-30 13:05       ` Eric W. Biederman
2006-03-30  8:30     ` Pavel Machek

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