linux-kernel - Re: [patch 61/66] timers: Convert to hotplug state machine

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Message-ID: <20160726144039.GB23707@linutronix.de>
Date:	Tue, 26 Jul 2016 16:40:39 +0200
From:	rcochran@...utronix.de
To:	Jon Hunter <jonathanh@...dia.com>
Cc:	Anna-Maria Gleixner <anna-maria@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>
Subject: Re: [patch 61/66] timers: Convert to hotplug state machine

Jon,

On Tue, Jul 26, 2016 at 10:20:58AM +0100, Jon Hunter wrote:
> Thanks. I have not tried another ARM based device, but I would be
> curious if another ARM device sees this or not.

I do see this stall on socfpga and on zynq, but in both cases the
suspend mechanism is flakey in other ways, too.  At least I can
reproduce the stall sometimes.

In your other mail you wrote that you test it like this:

   rtcwake -d rtc1 -m mem -s 3

But the stall appears only after 20 seconds.  So the resume event
after three seconds (-s 3) is getting lost, right?

Thanks,
Richard