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From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: linux-arm-kernel@lists.infradead.org
Subject: Re: "cpufreq: fix serialization issues with freq change notifiers" breaks cpufreq too
Date: Mon, 09 Sep 2013 20:57:32 +0000	[thread overview]
Message-ID: <1883706.eFcILAzoo8@vostro.rjw.lan> (raw)
In-Reply-To: <Pine.LNX.4.64.1309091656200.6602@axis700.grange>

Hi,

On Monday, September 09, 2013 05:11:10 PM Guennadi Liakhovetski wrote:
> Sorry guys, I'm trying my best to stop this patch from propagating to 
> stable and to get it fixed asap, so, the CC list might be a bit excessive. 
> Also trying to fix the originally spare cc list, which makes it impossible 
> for me to reply to the original thread, instead have to start a new one.

I'm not sure what you're talking about.  What exactly was wrong with the
original CC list in particular?

> Commit
> 
> commit dceff5ce18801dddc220d6238628619c93bc3cb6
> Author: Viresh Kumar <viresh.kumar@linaro.org>
> Date:   Sun Sep 1 22:19:37 2013 +0530
> 
>     cpufreq: fix serialization issues with freq change notifiers
> 
> breaks .transition_ongoing counting.

Do you know how exactly it breaks that?  If so, care to share that knowledge?

> This leads to cpufreq-cpu0 not working any more. In particular switching the
> governor from performance to powersave directly after boot doesn't result in
> a frequency switch any more. Reverting this patch fixes the problem again.

However, this is a regression fix, so I'd prefer to fix the problem on top of
it instead of reverting this commit entirely.

> Tested with today's 
> -next.
> 
> Please, refrain from including into "stable" until clarified!

Well, dropping the commit altogether and dropping the "CC stable" tag are
equally disruptive at this point, so I think I'll just defer all of the
cpufreq fixes I wanted to push for 3.12 before the ending of the merge
window.

Thanks,
Rafael


WARNING: multiple messages have this Message-ID (diff)
From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Viresh Kumar <viresh.kumar@linaro.org>, Greg KH <greg@kroah.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org,
	cpufreq@vger.kernel.org, linux-sh@vger.kernel.org,
	Magnus Damm <magnus.damm@gmail.com>
Subject: Re: "cpufreq: fix serialization issues with freq change notifiers" breaks cpufreq too
Date: Mon, 09 Sep 2013 23:08:25 +0200	[thread overview]
Message-ID: <1883706.eFcILAzoo8@vostro.rjw.lan> (raw)
In-Reply-To: <Pine.LNX.4.64.1309091656200.6602@axis700.grange>

Hi,

On Monday, September 09, 2013 05:11:10 PM Guennadi Liakhovetski wrote:
> Sorry guys, I'm trying my best to stop this patch from propagating to 
> stable and to get it fixed asap, so, the CC list might be a bit excessive. 
> Also trying to fix the originally spare cc list, which makes it impossible 
> for me to reply to the original thread, instead have to start a new one.

I'm not sure what you're talking about.  What exactly was wrong with the
original CC list in particular?

> Commit
> 
> commit dceff5ce18801dddc220d6238628619c93bc3cb6
> Author: Viresh Kumar <viresh.kumar@linaro.org>
> Date:   Sun Sep 1 22:19:37 2013 +0530
> 
>     cpufreq: fix serialization issues with freq change notifiers
> 
> breaks .transition_ongoing counting.

Do you know how exactly it breaks that?  If so, care to share that knowledge?

> This leads to cpufreq-cpu0 not working any more. In particular switching the
> governor from performance to powersave directly after boot doesn't result in
> a frequency switch any more. Reverting this patch fixes the problem again.

However, this is a regression fix, so I'd prefer to fix the problem on top of
it instead of reverting this commit entirely.

> Tested with today's 
> -next.
> 
> Please, refrain from including into "stable" until clarified!

Well, dropping the commit altogether and dropping the "CC stable" tag are
equally disruptive at this point, so I think I'll just defer all of the
cpufreq fixes I wanted to push for 3.12 before the ending of the merge
window.

Thanks,
Rafael


WARNING: multiple messages have this Message-ID (diff)
From: rjw@sisk.pl (Rafael J. Wysocki)
To: linux-arm-kernel@lists.infradead.org
Subject: "cpufreq: fix serialization issues with freq change notifiers" breaks cpufreq too
Date: Mon, 09 Sep 2013 23:08:25 +0200	[thread overview]
Message-ID: <1883706.eFcILAzoo8@vostro.rjw.lan> (raw)
In-Reply-To: <Pine.LNX.4.64.1309091656200.6602@axis700.grange>

Hi,

On Monday, September 09, 2013 05:11:10 PM Guennadi Liakhovetski wrote:
> Sorry guys, I'm trying my best to stop this patch from propagating to 
> stable and to get it fixed asap, so, the CC list might be a bit excessive. 
> Also trying to fix the originally spare cc list, which makes it impossible 
> for me to reply to the original thread, instead have to start a new one.

I'm not sure what you're talking about.  What exactly was wrong with the
original CC list in particular?

> Commit
> 
> commit dceff5ce18801dddc220d6238628619c93bc3cb6
> Author: Viresh Kumar <viresh.kumar@linaro.org>
> Date:   Sun Sep 1 22:19:37 2013 +0530
> 
>     cpufreq: fix serialization issues with freq change notifiers
> 
> breaks .transition_ongoing counting.

Do you know how exactly it breaks that?  If so, care to share that knowledge?

> This leads to cpufreq-cpu0 not working any more. In particular switching the
> governor from performance to powersave directly after boot doesn't result in
> a frequency switch any more. Reverting this patch fixes the problem again.

However, this is a regression fix, so I'd prefer to fix the problem on top of
it instead of reverting this commit entirely.

> Tested with today's 
> -next.
> 
> Please, refrain from including into "stable" until clarified!

Well, dropping the commit altogether and dropping the "CC stable" tag are
equally disruptive at this point, so I think I'll just defer all of the
cpufreq fixes I wanted to push for 3.12 before the ending of the merge
window.

Thanks,
Rafael

  reply	other threads:[~2013-09-09 20:57 UTC|newest]

Thread overview: 103+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-09 15:11 "cpufreq: fix serialization issues with freq change notifiers" breaks cpufreq too Guennadi Liakhovetski
2013-09-09 15:11 ` Guennadi Liakhovetski
2013-09-09 15:11 ` Guennadi Liakhovetski
2013-09-09 15:11 ` Guennadi Liakhovetski
2013-09-09 20:57 ` Rafael J. Wysocki [this message]
2013-09-09 21:08   ` Rafael J. Wysocki
2013-09-09 21:08   ` Rafael J. Wysocki
2013-09-09 21:42   ` Guennadi Liakhovetski
2013-09-09 21:42     ` Guennadi Liakhovetski
2013-09-09 21:42     ` Guennadi Liakhovetski
2013-09-09 23:12     ` Rafael J. Wysocki
2013-09-09 23:12       ` Rafael J. Wysocki
2013-09-09 23:12       ` Rafael J. Wysocki
2013-09-10  1:46       ` Rafael J. Wysocki
2013-09-10  1:46         ` Rafael J. Wysocki
2013-09-10 11:29 ` Viresh Kumar
2013-09-10 11:41   ` Viresh Kumar
2013-09-10 11:29   ` Viresh Kumar
2013-09-10 11:29   ` Viresh Kumar
2013-09-10 11:49   ` Rafael J. Wysocki
2013-09-10 11:49     ` Rafael J. Wysocki
2013-09-10 11:49     ` Rafael J. Wysocki
2013-09-10 11:49     ` Rafael J. Wysocki
2013-09-10 15:14     ` Viresh Kumar
2013-09-10 15:26       ` Viresh Kumar
2013-09-10 15:14       ` Viresh Kumar
2013-09-10 15:14       ` Viresh Kumar
2013-09-10 19:46       ` Rafael J. Wysocki
2013-09-10 19:46         ` Rafael J. Wysocki
2013-09-10 19:46         ` Rafael J. Wysocki
2013-09-10 19:46         ` Rafael J. Wysocki
2013-09-11  8:38         ` Viresh Kumar
2013-09-11  8:50           ` Viresh Kumar
2013-09-11  8:38           ` Viresh Kumar
2013-09-11  8:38           ` Viresh Kumar
2013-09-11 13:18           ` Rafael J. Wysocki
2013-09-11 13:18             ` Rafael J. Wysocki
2013-09-11 13:18             ` Rafael J. Wysocki
2013-09-11 13:18             ` Rafael J. Wysocki
2013-09-12  0:39             ` Viresh Kumar
2013-09-12  0:51               ` Viresh Kumar
2013-09-12  0:39               ` Viresh Kumar
2013-09-12  0:39               ` Viresh Kumar
2013-09-12  0:43               ` Rafael J. Wysocki
2013-09-12  0:43                 ` Rafael J. Wysocki
2013-09-12  0:43                 ` Rafael J. Wysocki
2013-09-12  0:43                 ` Rafael J. Wysocki
2013-09-12  5:36                 ` Viresh Kumar
2013-09-12  5:48                   ` Viresh Kumar
2013-09-12  5:36                   ` Viresh Kumar
2013-09-12  5:36                   ` Viresh Kumar
2013-09-12 10:50                   ` Rafael J. Wysocki
2013-09-12 11:01                     ` Rafael J. Wysocki
2013-09-12 11:01                     ` Rafael J. Wysocki
2013-09-12 11:01                     ` Rafael J. Wysocki
2013-09-12 10:52                     ` Viresh Kumar
2013-09-12 10:52                       ` Viresh Kumar
2013-09-12 10:52                       ` Viresh Kumar
2013-09-12 10:52                       ` Viresh Kumar
2013-09-10 15:12   ` Guennadi Liakhovetski
2013-09-10 15:12     ` Guennadi Liakhovetski
2013-09-10 15:12     ` Guennadi Liakhovetski
2013-09-10 15:12     ` Guennadi Liakhovetski
2013-09-10 15:26     ` Viresh Kumar
2013-09-10 15:38       ` Viresh Kumar
2013-09-10 15:26       ` Viresh Kumar
2013-09-10 15:26       ` Viresh Kumar
2013-09-10 16:22       ` Guennadi Liakhovetski
2013-09-10 16:22         ` Guennadi Liakhovetski
2013-09-10 16:22         ` Guennadi Liakhovetski
2013-09-10 16:22         ` Guennadi Liakhovetski
2013-09-10 16:34         ` Viresh Kumar
2013-09-10 16:46           ` Viresh Kumar
2013-09-10 16:34           ` Viresh Kumar
2013-09-10 16:34           ` Viresh Kumar
2013-09-10 17:07           ` Guennadi Liakhovetski
2013-09-10 17:07             ` Guennadi Liakhovetski
2013-09-10 17:07             ` Guennadi Liakhovetski
2013-09-10 17:07             ` Guennadi Liakhovetski
2013-09-11  8:06             ` Viresh Kumar
2013-09-11  8:18               ` Viresh Kumar
2013-09-11  8:06               ` Viresh Kumar
2013-09-11  8:06               ` Viresh Kumar
2013-09-11  8:15               ` Guennadi Liakhovetski
2013-09-11  8:15                 ` Guennadi Liakhovetski
2013-09-11  8:15                 ` Guennadi Liakhovetski
2013-09-11  8:15                 ` Guennadi Liakhovetski
2013-09-11  8:39                 ` Viresh Kumar
2013-09-11  8:51                   ` Viresh Kumar
2013-09-11  8:39                   ` Viresh Kumar
2013-09-11  8:39                   ` Viresh Kumar
2013-09-11 13:28                 ` Rafael J. Wysocki
2013-09-11 13:28                   ` Rafael J. Wysocki
2013-09-11 13:28                   ` Rafael J. Wysocki
2013-09-11 13:28                   ` Rafael J. Wysocki
2013-09-12  7:47               ` Guennadi Liakhovetski
2013-09-12  7:47                 ` Guennadi Liakhovetski
2013-09-12  7:47                 ` Guennadi Liakhovetski
2013-09-12  7:47                 ` Guennadi Liakhovetski
2013-09-12  7:51                 ` Viresh Kumar
2013-09-12  7:51                   ` Viresh Kumar
2013-09-12  7:51                   ` Viresh Kumar
2013-09-12  7:51                   ` Viresh Kumar

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