linux-kernel - Re: [PATCH 4/8] time: Condense timekeeper.xtime into xtime

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Message-ID: <m2fw7h4ab5.fsf@igel.home>
Date:	Mon, 20 Aug 2012 21:45:18 +0200
From:	Andreas Schwab <schwab@...ux-m68k.org>
To:	John Stultz <john.stultz@...aro.org>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Richard Cochran <richardcochran@...il.com>,
	Prarit Bhargava <prarit@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH 4/8] time: Condense timekeeper.xtime into xtime_sec

John Stultz <john.stultz@...aro.org> writes:

> I'm not very familiar w/ the iBook hardware, but does it use a 
> clocksource, or does it use arch_gettimeoffset()?

clocksource: timebase mult[3640e38e] shift[24] registered

> I suspect that the casting has avoided clipping some strange values from 
> the persistent clock.

That's my guess as well.

> Could you try with the following patch against Linus' HEAD? I suspect it 
> will let the box resume (although it will seem as though no time was 
> spent in resume) and then let me know what the JDB lines print out?

JDB: suspend_time: 1345491706:0  resume_time: 1345491737:0
JDB: Trying to add: 31:0

(Looks reasonable.)

Andreas.

-- 
Andreas Schwab, schwab@...ux-m68k.org
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