[LITMUS^RT] How to stop all the rt-tasks manually

[Sanjib Das]

Hello Björn,

No i haven't tried with killall.
what will be parameter for the killall command,
killall -g rtspin doesnt work
also
killall -g rcu_preempt

how should I try it ?

Thanks in advance

Sanjib
On 09.02.2014 13:54, Björn Brandenburg wrote:
> On 09 Feb 2014, at 05:11, Sanjib Das <cnt.sanjib at googlemail.com> wrote:
>
>> Dear Concern,
>>
>> I am wondering if there is any way to kill all the running real-time task manually.
> Have you tried killall?
>
> - Björn
>
>
>> I am trying to run G-EDF and C-EDF with different tasks and because of wrong parameter I found "rcu_preempt detected stalls on cpus/tasks", as a result my rt tasks were still running.
>>
>> "
>> [ 2072.588370] Could not switch plugin: -16
>> [ 2107.177026] Could not switch plugin: -16
>> [ 2120.735386] Could not switch plugin: -16
>> [ 2131.718955] Could not switch plugin: -16
>> [ 2173.427350] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 1, t=600017 jiffies, g=53906, c=53905, q=0)
>> [ 2173.427371] INFO: Stall ended before state dump start
>> [ 2189.814720] Could not switch plugin: -16
>> [ 2353.473222] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 1, t=780022 jiffies, g=53906, c=53905, q=0)
>> [ 2353.473241] INFO: Stall ended before state dump start
>> [ 2533.519115] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 1, t=960027 jiffies, g=53906, c=53905, q=0)
>> [ 2533.519131] INFO: Stall ended before state dump start
>>
>> "
>>
>>
>> Though I ran the command using sudo,
>> "
>> Error: Cannot write to /proc/litmus/active_plugin. Do you have root privileges?
>> Error: Setting new plugin failed.
>> Are there any active real-time tasks?
>> sdas at sdas-lab:~/littest/liblitmus$
>> "
>>
>> Any suggestions will be very helpful.
>>
>> Thanks in advance
>
>
>
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