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From: Meelis Roos <mroos@linux.ee>
To: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
	Linux PM <linux-pm@vger.kernel.org>,
	Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: 4.14 regression - hang on shutdown (VIA longhaul related?)
Date: Mon, 27 Nov 2017 22:20:22 +0200 (EET)	[thread overview]
Message-ID: <alpine.LRH.2.21.1711272219361.5402@math.ut.ee> (raw)
In-Reply-To: <CAJZ5v0icc0=QgNdCBv65Gwe1svEUfR8eHZ6QGyzX_ArcbBYNMA@mail.gmail.com>

> On Mon, Nov 27, 2017 at 4:19 PM, Meelis Roos <mroos@linux.ee> wrote:
> >> > Please try to replace the 10000 in
> >> > cpufreq_policy_transition_delay_us() with a greater number (say 20000
> >> > or 50000) and see if that helps.
> >>
> >> With 50000 it has worked 4 reboots out of 4.
> >
> > With 20000, it also seems to work 3 out of 3 times.
> 
> OK, please test it a bit more just to be sure.  If 20000 is
> sufficient, we can easily make this change.

Seems stable, 20+ reboots after diferenet uptimes and workloads were all 
successful.

-- 
Meelis Roos (mroos@linux.ee)

  reply	other threads:[~2017-11-27 20:20 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-27 10:53 4.14 regression - hang on shutdown (VIA longhaul related?) Meelis Roos
2017-11-27 13:26 ` Rafael J. Wysocki
2017-11-27 14:31   ` Meelis Roos
2017-11-27 15:19     ` Meelis Roos
2017-11-27 16:21       ` Rafael J. Wysocki
2017-11-27 20:20         ` Meelis Roos [this message]
2017-11-28  3:11 ` [PATCH] cpufreq: longhaul: Set transition_delay_us to 20 ms Viresh Kumar
2017-11-28 22:07   ` Rafael J. Wysocki
2017-11-29  6:59     ` Meelis Roos
2017-12-04 15:03       ` Rafael J. Wysocki
2017-12-05  8:18   ` Meelis Roos
2017-12-05  8:54     ` Meelis Roos
2017-12-05 15:26       ` Rafael J. Wysocki
2017-12-06 18:21         ` Meelis Roos
2017-12-07  4:40           ` Viresh Kumar
2017-12-07  5:14             ` Meelis Roos
2017-12-07  7:26             ` Meelis Roos
2017-12-07  9:33               ` Viresh Kumar
2017-12-07 12:51             ` Meelis Roos
2017-12-07 12:54               ` Rafael J. Wysocki
2017-12-07  9:45 ` [PATCH V2] cpufreq: longhaul: Revert transition_delay_us to 200 ms Viresh Kumar

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