linux-kernel - Re: 3.2-rc2+: Reported regressions from 3.0 and 3.1

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Message-ID: <20111201143548.GA28114@phenom.dumpdata.com>
Date:	Thu, 1 Dec 2011 09:35:48 -0500
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	Borislav Petkov <bp@...64.org>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, tglx@...utronix.de,
	mingo@...hat.com, hpa@...or.com, x86@...nel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux SCSI List <linux-scsi@...r.kernel.org>,
	Linux ACPI <linux-acpi@...r.kernel.org>,
	Network Development <netdev@...r.kernel.org>,
	Linux Wireless List <linux-wireless@...r.kernel.org>,
	DRI <dri-devel@...ts.freedesktop.org>,
	Florian Mickler <florian@...kler.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux PM List <linux-pm@...ts.linux-foundation.org>,
	Maciej Rutecki <maciej.rutecki@...il.com>,
	deepthi@...ux.vnet.ibm.com
Subject: Re: 3.2-rc2+: Reported regressions from 3.0 and 3.1

> >From what I can see, you get the following callchain:
> 
> start_kernel
> |-> setup_arch
>     |-> x86_init.oem.arch_setup = xen_arch_setup
>     ....
>     |-> check_bugs
>         |-> identify_boot_cpu
> 	    |-> identify_cpu
> 	        |-> select_idle_routine
> 
> 
> so xen_arch_setup will set pm_idle and select_idle_routine will honour
> it. I'm being told this is run either in the dom0 or the paravirt guest
> and if so, I don't see any issue with this for baremetal. So you can
> have my ACK provided this is tested on baremetal too.

Tested on baremetal and there were no abnormalities. Thanks!
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