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From: Mason <slash.tmp@free.fr>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Mans Rullgard <mans@mansr.com>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Linux PM <linux-pm@vger.kernel.org>,
	cpufreq <cpufreq@vger.kernel.org>
Subject: Re: schedule_timeout sleeps too long after dividing CPU frequency
Date: Thu, 14 May 2015 16:51:10 +0200	[thread overview]
Message-ID: <5554B65E.9070809@free.fr> (raw)
In-Reply-To: <20150514135353.GY2067@n2100.arm.linux.org.uk>

On 14/05/2015 15:53, Russell King - ARM Linux wrote:

> I wonder if clockevents_update_freq() is returning an error - which we
> don't check, and don't print a warning.  It would probably be a very
> good idea to print a warning as a failure to reconfigure the clock
> events code for a different frequency will lead to this kind of issue.

I'll add code to test the return value, and report back here.

Regards.


WARNING: multiple messages have this Message-ID (diff)
From: slash.tmp@free.fr (Mason)
To: linux-arm-kernel@lists.infradead.org
Subject: schedule_timeout sleeps too long after dividing CPU frequency
Date: Thu, 14 May 2015 16:51:10 +0200	[thread overview]
Message-ID: <5554B65E.9070809@free.fr> (raw)
In-Reply-To: <20150514135353.GY2067@n2100.arm.linux.org.uk>

On 14/05/2015 15:53, Russell King - ARM Linux wrote:

> I wonder if clockevents_update_freq() is returning an error - which we
> don't check, and don't print a warning.  It would probably be a very
> good idea to print a warning as a failure to reconfigure the clock
> events code for a different frequency will lead to this kind of issue.

I'll add code to test the return value, and report back here.

Regards.

  reply	other threads:[~2015-05-14 14:51 UTC|newest]

Thread overview: 77+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-12 14:32 schedule_timeout sleeps too long after dividing CPU frequency Mason
2015-05-12 14:32 ` Mason
2015-05-12 14:46 ` Viresh Kumar
2015-05-12 14:46   ` Viresh Kumar
2015-05-12 15:14   ` Mason
2015-05-12 15:14     ` Mason
2015-05-12 15:50     ` Russell King - ARM Linux
2015-05-12 15:50       ` Russell King - ARM Linux
2015-05-12 16:14       ` Mason
2015-05-12 16:14         ` Mason
2015-05-13 16:51       ` Mason
2015-05-13 16:51         ` Mason
2015-05-14  2:13         ` Viresh Kumar
2015-05-14  2:13           ` Viresh Kumar
2015-05-14 11:22           ` Mason
2015-05-14 11:22             ` Mason
2015-05-14 11:54             ` Viresh Kumar
2015-05-14 11:54               ` Viresh Kumar
2015-05-14 13:06               ` Mason
2015-05-14 13:06                 ` Mason
2015-05-14 13:53                 ` Russell King - ARM Linux
2015-05-14 13:53                   ` Russell King - ARM Linux
2015-05-14 14:51                   ` Mason [this message]
2015-05-14 14:51                     ` Mason
2015-05-14 13:59                 ` Viresh Kumar
2015-05-14 13:59                   ` Viresh Kumar
2015-05-14 13:59                   ` Viresh Kumar
2015-05-14 14:38                   ` Viresh Kumar
2015-05-14 14:38                     ` Viresh Kumar
2015-05-14 14:42                   ` Russell King - ARM Linux
2015-05-14 14:42                     ` Russell King - ARM Linux
2015-05-15  9:29                     ` Mason
2015-05-15  9:29                       ` Mason
2015-05-15  9:51                       ` Russell King - ARM Linux
2015-05-15  9:51                         ` Russell King - ARM Linux
2015-05-15 10:01                         ` Viresh Kumar
2015-05-15 10:01                           ` Viresh Kumar
2015-05-15 10:36                         ` Mason
2015-05-15 10:36                           ` Mason
2015-05-15 11:58                           ` Russell King - ARM Linux
2015-05-15 11:58                             ` Russell King - ARM Linux
2015-05-15 12:45                             ` Mason
2015-05-15 12:45                               ` Mason
2015-05-15 13:15                               ` Russell King - ARM Linux
2015-05-15 13:15                                 ` Russell King - ARM Linux
2015-05-15 13:58                                 ` Mason
2015-05-15 18:35                                   ` Mason
2015-05-18 11:24                                     ` Mason
2015-05-18 11:54                                       ` Russell King - ARM Linux
2015-05-20 16:21                                         ` Mason
2015-05-20 18:50                                           ` Arnd Bergmann
2015-05-20 19:34                                             ` Mason
2015-05-20 20:14                                               ` Russell King - ARM Linux
2015-05-20 20:41                                                 ` Mason
2015-05-20 20:52                                                   ` Arnd Bergmann
2015-05-20 21:56                                                     ` Mason
2015-05-20 22:18                                                       ` Arnd Bergmann
2015-05-21 12:35                                                         ` Mason
2015-05-20 23:14                                                       ` Russell King - ARM Linux
2015-05-21  9:56                                                         ` Mason
2015-05-21 10:20                                                           ` Russell King - ARM Linux
2015-05-14 14:48                   ` Mason
2015-05-14 14:48                     ` Mason
2015-05-15  4:16                     ` Viresh Kumar
2015-05-15  4:16                       ` Viresh Kumar
2015-05-15  5:07                       ` Viresh Kumar
2015-05-15  5:07                         ` Viresh Kumar
2015-05-15  9:00                       ` Russell King - ARM Linux
2015-05-15  9:00                         ` Russell King - ARM Linux
2015-05-15  9:21                       ` Mason
2015-05-15  9:21                         ` Mason
2015-05-15 10:11                       ` Mason
2015-05-15 10:11                         ` Mason
2015-05-12 15:23 ` Russell King - ARM Linux
2015-05-12 15:23   ` Russell King - ARM Linux
2015-05-12 16:03   ` Mason
2015-05-12 16:03     ` Mason

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