From: Armin Steinhoff <armin@steinhoff.de>
To: Harry van Haaren <harryhaaren@gmail.com>
Cc: rt-users <linux-rt-users@vger.kernel.org>
Subject: Re: Operation not permitted / pthread_setschedparam
Date: Tue, 30 Sep 2014 14:32:37 +0200 [thread overview]
Message-ID: <542AA2E5.1050507@steinhoff.de> (raw)
In-Reply-To: <CAKudYbMN0W2uiKN-TEMMkHLUNyeBP38syjg0x7DtAvj1fZq+YA@mail.gmail.com>
Harry,
I'm running as root. The same code works w/o problem with the normal
(non RT) kernel.
"chrt -m" shows 1/99 for SCHED_FIFO. I did also add @root - rtprio 99
to limits.conf ... no success, as expected.
--Armin
Harry van Haaren schrieb:
> On Tue, Sep 30, 2014 at 11:40 AM, Armin Steinhoff <armin@steinhoff.de> wrote:
>> a "pthread_setschedparam" call of the code below terminates with an
>> errno == 1 ... means "Operation not permitted"
> At risk of asking the obvious: are you running as root, or does the
> user running this code have RT priorities?
>
> User priorities controlled by /etc/security/limits.conf : you can set
> a groups max-rtprio like so:
> @audio - rtprio 65
>
>> KERNEL_EVENT_THREAD_PRIORITY is 55!
>> How to solve that problem ?
> Anything above 50 requrires changing limits.conf or root IIRC.
>
> HTH, -Harry
>
next prev parent reply other threads:[~2014-09-30 12:32 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-30 10:40 Operation not permitted / pthread_setschedparam Armin Steinhoff
2014-09-30 11:44 ` Harry van Haaren
2014-09-30 12:32 ` Armin Steinhoff [this message]
2014-09-30 17:22 ` Armin Steinhoff
2014-09-30 23:09 ` Thomas Gleixner
2014-10-01 7:27 ` Armin Steinhoff
2014-10-01 7:49 ` Patrik Lundquist
2014-10-02 8:02 ` Armin Steinhoff
2014-10-04 10:49 ` Carsten Emde
2014-10-04 12:36 ` Armin Steinhoff
2014-10-04 12:50 ` Armin Steinhoff
2014-10-04 23:56 ` Thomas Gleixner
2014-10-05 11:07 ` Armin Steinhoff
2014-10-05 11:47 ` Armin Steinhoff
2014-10-05 14:34 ` Armin Steinhoff
[not found] ` <54312C88.8060609@steinhoff.de>
2014-10-05 20:54 ` Thomas Gleixner
2014-10-06 8:03 ` Armin Steinhoff
2014-10-06 13:34 ` Armin Steinhoff
2014-10-07 1:33 ` Thomas Gleixner
2014-10-07 7:57 ` Armin Steinhoff
2014-10-09 8:35 ` Operation not permitted / pthread_setschedparam / EOD Armin Steinhoff
2014-10-09 9:41 ` Pavel Vasilyev
2014-10-09 12:22 ` Crowd Funding ? Armin Steinhoff
2014-10-09 21:59 ` Richard Weinberger
2014-10-10 12:14 ` Armin Steinhoff
2014-10-11 10:04 ` Armin Steinhoff
2014-10-05 10:13 ` Operation not permitted / pthread_setschedparam Armin Steinhoff
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