From: Stephen Boyd <sboyd@codeaurora.org>
To: John Stultz <john.stultz@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] sched_clock: Avoid corrupting hrtimer tree during suspend
Date: Tue, 22 Jul 2014 15:21:10 -0700 [thread overview]
Message-ID: <53CEE3D6.6070207@codeaurora.org> (raw)
In-Reply-To: <53C9B862.5050106@linaro.org>
On 07/18/14 17:14, John Stultz wrote:
> On 07/18/2014 04:24 PM, Stephen Boyd wrote:
>> On 07/18/14 15:42, John Stultz wrote:
>>> If its a regression (and needs -stable backports) it needs to go in via
>>> tip/timers/urgent, and not via the regular merge window.
>>>
>>> Whats the additional risk -stable wise for canceling the timer during
>>> suspend and starting it back up during resume?
>>>
>> I'd say close to zero given that we'd only be making the timer run a
>> little bit later and we have slack in there already. Here's that version.
> Ok, thanks. I'll try to do a closer review it and get it queued. Is
> there anyone who might be able to validate this and provide a Tested-by: ?
>
Maybe someone from Linaro can give a Tested-by? I basically did this:
# grep -A1 'sched_clock' /proc/timer_list && echo mem > /sys/power/state && grep -A1 'sched_clock' /proc/timer_list
and made sure that the expires time was reset.
--
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hosted by The Linux Foundation
next prev parent reply other threads:[~2014-07-22 22:21 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-18 22:09 [PATCH] sched_clock: Avoid corrupting hrtimer tree during suspend Stephen Boyd
2014-07-18 22:25 ` John Stultz
2014-07-18 22:38 ` Stephen Boyd
2014-07-18 22:42 ` John Stultz
2014-07-18 23:24 ` Stephen Boyd
2014-07-19 0:14 ` John Stultz
2014-07-22 22:21 ` Stephen Boyd [this message]
-- strict thread matches above, loose matches on Subject: below --
2014-07-24 4:03 John Stultz
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