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From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>,
	Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	Petr Mladek <pmladek@suse.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>, Jan Kara <jack@suse.cz>,
	Tejun Heo <tj@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	vlevenetz@mm-sol.com,
	Vaibhav Hiremath <vaibhav.hiremath@linaro.org>,
	Alex Elder <alex.elder@linaro.org>,
	johan@kernel.org, Andrew Morton <akpm@linux-foundation.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Linux PM <linux-pm@vger.kernel.org>
Subject: Re: [Query] Preemption (hogging) of the work handler
Date: Wed, 13 Jul 2016 15:22:58 +0200	[thread overview]
Message-ID: <CAJZ5v0gu7pfjNhzdO1x5D3coHzvZKepLBS=X4G0wjKVkhBxSGQ@mail.gmail.com> (raw)
In-Reply-To: <20160713125704.GA458@swordfish>

On Wed, Jul 13, 2016 at 2:57 PM, Sergey Senozhatsky
<sergey.senozhatsky@gmail.com> wrote:
> Hello Rafael,
>
> On (07/13/16 14:05), Rafael J. Wysocki wrote:
> [..]
>> > ah, just saw this. OK, very close to what I sent in another thread, so I
>> > guess it will work on your side.
>> > let me know if it doesn't, I'll fold it into 0001 and re-spin the series.
>> > thanks for your help!
>>
>> But you need to do an analogous thing for hibernation.  Essentially,
>> wherever disable_nonboot_cpus() is called.
>
> hibernation() suspends console, and suspend_console() forces printk to
> switch to sync mode. resume_console() lets printk to operate in async
> mode (if printk was configured to operate in async mode at all).
>
> the patch I'm talking about is:
>  http://marc.info/?l=linux-kernel&m=146838876027364&w=2

Ah OK.  That should work for hibernation too.

> am I missing something?

No, I got confused for some reason.

Thanks,
Rafael

  reply	other threads:[~2016-07-13 13:23 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-01 16:59 [Query] Preemption (hogging) of the work handler Viresh Kumar
2016-07-01 17:22 ` Tejun Heo
2016-07-01 17:28   ` Viresh Kumar
2016-07-06 18:28   ` Viresh Kumar
2016-07-06 19:23     ` Steven Rostedt
2016-07-06 19:25       ` Viresh Kumar
2016-07-11 10:26     ` Jan Kara
2016-07-11 15:44       ` Sergey Senozhatsky
2016-07-11 22:35         ` Viresh Kumar
2016-07-11 22:44           ` Rafael J. Wysocki
2016-07-11 22:46             ` Viresh Kumar
2016-07-12 12:24               ` Rafael J. Wysocki
2016-07-12 13:02                 ` Viresh Kumar
2016-07-12 13:56                   ` Petr Mladek
2016-07-12 14:04                     ` Viresh Kumar
2016-07-12  9:38           ` Sergey Senozhatsky
2016-07-12 12:52             ` Petr Mladek
2016-07-12 13:12               ` Viresh Kumar
2016-07-12 17:11                 ` Viresh Kumar
2016-07-12 19:59                   ` Rafael J. Wysocki
2016-07-12 20:08                     ` Viresh Kumar
2016-07-13  7:00                   ` Sergey Senozhatsky
2016-07-13 12:05                     ` Rafael J. Wysocki
2016-07-13 12:57                       ` Sergey Senozhatsky
2016-07-13 13:22                         ` Rafael J. Wysocki [this message]
2016-07-12 14:03               ` Sergey Senozhatsky
2016-07-12 14:12                 ` Viresh Kumar
2016-07-14 23:52                 ` Viresh Kumar
2016-07-15 13:11                   ` Sergey Senozhatsky
2016-07-15 15:57                     ` Viresh Kumar
2016-07-12 23:19           ` Viresh Kumar
2016-07-13  0:18             ` Viresh Kumar
2016-07-13  5:45             ` Sergey Senozhatsky
2016-07-13 15:39               ` Viresh Kumar
2016-07-13 23:08                 ` Rafael J. Wysocki
2016-07-13 23:18                   ` Viresh Kumar
2016-07-13 23:38                     ` Greg Kroah-Hartman
2016-07-14  0:55                 ` Sergey Senozhatsky
2016-07-14  1:09                   ` Rafael J. Wysocki
2016-07-14  1:32                     ` Sergey Senozhatsky
2016-07-14 21:57                       ` Viresh Kumar
2016-07-14 21:55                   ` Viresh Kumar
2016-07-14 14:12               ` Jan Kara
2016-07-14 14:33                 ` Rafael J. Wysocki
2016-07-14 14:39                   ` Jan Kara
2016-07-14 14:47                     ` Rafael J. Wysocki
2016-07-14 14:55                       ` Jan Kara
2016-07-14 22:14                         ` Viresh Kumar
2016-07-14 14:34                 ` Sergey Senozhatsky
2016-07-14 15:03                   ` Jan Kara
2016-07-14 22:12                 ` Viresh Kumar
2016-07-18 11:01                   ` Jan Kara
2016-07-18 11:49                     ` Rafael J. Wysocki
2016-07-29 20:42               ` Viresh Kumar
2016-07-30  2:12                 ` Sergey Senozhatsky
2016-07-11 19:03       ` Viresh Kumar

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