Re: Operation not permitted / pthread_setschedparam

[Armin Steinhoff <armin@steinhoff.de>]

Thomas Gleixner schrieb:
> On Sat, 4 Oct 2014, Armin Steinhoff wrote:
>> 8. And your second suspicion is that the ps utility is broken.
>>    The question about the operation of "ps" was just a formal one .. sorry.
>>
>> Well, I'd say it's not formal. Let me cite from your previous mail:f the app "demo_mn_console" has started its first RT thread, a
>> lot of other processes/threads are jumping to the highest RT
>> priority 99!!
> Did you ever try to invoke:
>
> # man ps
>
> and try to figure out what the PRI field actually means? Definitely
> not.

I'm working since a long time with _different_ REAL-TIME operating
systems and yes, I interpreted for a moment the PRI output of "ps" wrong!

But this doesn't explain why pthread_schedparam had problems with an
earlier PREEMPT_RT kernel!
And pointing out such a problem and problems of "ps" is for you:

- a student seeking advise for his first homework assignement

- someone completely incompetent trying to make a business by
   abusing a community?
- a person with a severe drug abuse problem which causes reality
   distortion?

????

 OK ... you are expert for the PREEMPT_RT kernel for a long time. Hope you are still OK ...

--Armin

*PS: I never had such a silly discussion ...*

> My version of "man ps" tells me:
>
>        pri         PRI       priority of the process.  Higher number means
>                              lower priority.
>
> Can you figure out why your problem analysis
>
>>>> If the app "demo_mn_console" has started its first RT thread, a
>>>> lot of other processes/threads are jumping to the highest RT
>>>> priority 99!!
> causes people on this list to assume that you either are
>
>  - a student seeking advise for his first homework assignement
>
> or 
>
>  - someone completely incompetent trying to make a business by
>    abusing a community?
>
> or
>
>  - a person with a severe drug abuse problem which causes reality
>    distortion?
>
> but definitely not a business who claims itself to be
>
>  "the Real-Time, Fieldbus, and GUI Experts" [1]
>
>
> Thanks,
>
> 	tglx
>
> [1] http://steinhoff.de/index.htm
>