linux-kernel - Re: [PATCH 6/6] hrtimer: Update hrtimer base offsets each hrtimer

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Message-Id: <201207152228.36740.rjw@sisk.pl>
Date:	Sun, 15 Jul 2012 22:28:36 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Andreas Schwab <schwab@...ux-m68k.org>,
	John Stultz <johnstul@...ibm.com>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Prarit Bhargava <prarit@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>, stable@...r.kernel.org,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	linuxppc-dev@...ts.ozlabs.org,
	Linux PM list <linux-pm@...r.kernel.org>
Subject: Re: [PATCH 6/6] hrtimer: Update hrtimer base offsets each hrtimer_interrupt

On Sunday, July 15, 2012, Andreas Schwab wrote:
> This breaks resume on the iBook G4 (PowerBook6,7).  Apparently during or
> before noirq resume the system is hanging by the same amount of time as
> the system was sleeping.

I'm able to reproduce this problem on Toshiba Portege R500 with similar
symptoms, although that box sometimes hangs hard during resume from system
suspend with the "caps lock" LED blinking.

Reverting the patch fixes the problem 100% of the time.

Thanks,
Rafael
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