linux-kernel - Re: TSC not updating after resume: Bug or Feature?

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Date:	Tue, 23 Dec 2008 08:03:06 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
cc:	Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <peterz@...radead.org>,
	Steven Rostedt <srostedt@...hat.com>, dsaxena@...xity.net,
	linux-kernel@...r.kernel.org,
	Dave Kleikamp <shaggy@...ux.vnet.ibm.com>
Subject: Re: TSC not updating after resume: Bug or Feature?

On Tue, 23 Dec 2008, Rafael J. Wysocki wrote:
> > Care to explain ?
> 
> Well, the fact that in the resume code path the clocksource is only updated as
> a result of executing pci_set_power_state() is worrisome.  I would be more
> reliable to update it directly at one point.

Hmm. We reactivate the clock sources from timekeeping resume():

     clocksource_resume();

How is this related to pci_set_power_state() ?

Thanks,

	tglx
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