[etherlab-users] Working counter changed to 0/113

[pier]

On 09/04/14 15:21, pier wrote:
> On 09/04/14 14:49, Martin Troxler wrote:
>> On 09.04.2014 14:02, pier wrote:
>>> Dear helper
>>>
>>> Sometimes in a couple of hours or more we receive this messages in
>>>
>>> the syslog :
>>>
>>> Apr 7 07:31:33 (none) kernel:  EtherCAT 0: Domain 0: Working counter 
>>> changed to 0/113.
>>>
>> Hi Pier
>>
>> If your realtime tasks runs as in a usermode thread and access the 
>> ethernet device through the generic device, then you have to make 
>> sure that the priorities of the IRQ threads are higher than the 
>> priority of the realtime thread.
>>
>> Show the pids of the IRQ threads of a eth device
>> >$ NETDEVNAME=eth1
>> >$ ps -A | awk "/irq\/[0-9]+-${NETDEVNAME}/ { print \$1 }" | xargs 
>> --no-run-if-empty
>> 1512 1513 1514
>> Show the realtime priority of a process
>> >$ chrt -p 1512
>> pid 1512's current scheduling policy: SCHED_FIFO
>> pid 1512's current scheduling priority: 80
>>
>> The priority must be higher than the priority of your realtime task 
>> thread.
>>
>> In addition, disable interrupt throttling on your eth device.
>>
>> >$ ethtool --coalesce $NETDEVNAME adaptive-rx off adaptive-tx off 
>> rx-usecs 0 rx-frames 0 rx-usecs-irq 0 rx-frames-irq 0 tx-usecs 0 
>> tx-frames 0 tx-usecs-irq 0 tx-frames-irq 0 pkt-rate-low 0 pkt-rate-high 0
>>
>> Regards
>> Martin
>>
>>
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>> Thank You
>
>> . 
> Dear Martin
>
> I have tried this :
>
> >$ NETDEVNAME=eth1
> >$ ps -A | awk "/irq\/[0-9]+-${NETDEVNAME}/ { print \$1 }" | xargs 
> --no-run-if-empty
>
> But the answer in empty.... nothing...
>
> The Operating system is a Ubuntu 12.04
>
> Best Regards
>
> Pier
> -- 
>
> Perlsoft GmbH
> Sennereigasse 27
> 3900 Brig
> Switzerland
>
> Tel. +41977022933
>
>
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Dear Martin

The process that access to ethercat started as root...

Looking at the output of the PS -A I do not see any eth1
but these are the process that use it

21983 ?        00:51:40 EtherCAT-OP

root at Arcade_2:~# chrt -p 21983
pid 21983's current scheduling policy: SCHED_OTHER
pid 21983's current scheduling priority: 0


21982 ?        09:40:51 rtctrl

root at Arcade_2:~# chrt -p 21982
pid 21982's current scheduling policy: SCHED_OTHER
pid 21982's current scheduling priority: 0


Regards

Pier

-- 

Perlsoft GmbH
Sennereigasse 27
3900 Brig
Switzerland

Tel. +41977022933

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