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From: "Robert Schöne" <robert.schoene@tu-dresden.de>
To: Prarit Bhargava <prarit@redhat.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Lists linaro-kernel <linaro-kernel@lists.linaro.org>,
	"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
	Saravana Kannan <skannan@codeaurora.org>
Subject: Re: [PATCH 1/2] cpufreq: serialize calls to __cpufreq_governor()
Date: Fri, 10 Oct 2014 15:42:53 +0200	[thread overview]
Message-ID: <1412948573.13463.42.camel@x200t> (raw)
In-Reply-To: <5437E1BD.5020801@redhat.com>

crash_governor.sh:
#!/bin/sh
# this is called concurrently via runme.sh
for I in `seq 1000`
do
        echo ondemand | sudo
tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
        echo userspace | sudo
tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
done

runme.sh:
#!/bin/sh
# run 8 concurrent instances
for I in `seq 8`
do
        ./crash_governor.sh &
done

Just run runme.sh and crash your system :)




Am Freitag, den 10.10.2014, 09:40 -0400 schrieb Prarit Bhargava:
> In v2 my system still crashes when concurrently setting the governors
> > I wasn't able to get a stack trace.
> > 
> > Robert 
> > 
> 
> Send me your test script please.
> 
> P.
> 


  reply	other threads:[~2014-10-10 13:43 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-10 13:40 [PATCH 1/2] cpufreq: serialize calls to __cpufreq_governor() Prarit Bhargava
2014-10-10 13:42 ` Robert Schöne [this message]
  -- strict thread matches above, loose matches on Subject: below --
2014-10-10 13:55 Prarit Bhargava
2014-10-10 13:58 ` Viresh Kumar
2014-10-08  7:04 Viresh Kumar
2014-10-08 12:46 ` Prarit Bhargava
2014-10-10  9:04   ` Viresh Kumar
2014-10-10 10:41     ` Robert Schöne
2014-10-10 11:14       ` Viresh Kumar
2014-10-10 11:21     ` Prarit Bhargava
2014-10-10 11:30       ` Viresh Kumar
2014-10-10 11:38         ` Prarit Bhargava
2014-10-10 11:46           ` Viresh Kumar
2014-10-10 11:48             ` Prarit Bhargava
2014-10-10 12:01               ` Robert Schöne
2014-10-10 12:39                 ` Viresh Kumar
2014-10-10 13:04                   ` Robert Schöne
2014-10-10 13:23                   ` Robert Schöne
2014-10-10 13:52                     ` Viresh Kumar
2014-10-10 14:05                       ` Robert Schöne
2014-10-14  6:58                         ` Viresh Kumar
2014-10-14 11:42                           ` Prarit Bhargava
2014-10-14 17:12                             ` Prarit Bhargava
2014-10-16 10:58                               ` Viresh Kumar
2014-10-17 12:12                                 ` Prarit Bhargava
2014-10-16 10:57                             ` Viresh Kumar
2014-10-17 12:09                               ` Prarit Bhargava
2014-09-09  4:16 Viresh Kumar
2014-09-09  7:29 ` Robert Schöne
2014-09-09  7:35   ` Viresh Kumar
     [not found]   ` <540EEA95.8030208@redhat.com>
2014-09-09 14:45     ` Viresh Kumar
2014-09-24 23:46 ` Rafael J. Wysocki
2014-09-25  6:07   ` Robert Schöne
2014-09-29  9:50   ` Viresh Kumar
2014-09-29 11:29 ` Prarit Bhargava
2014-09-29 11:38   ` Viresh Kumar
2014-09-29 11:50     ` Prarit Bhargava
2014-09-29 11:55       ` Viresh Kumar

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