All of lore.kernel.org
 help / color / mirror / Atom feed
From: Wolfgang Grandegger <wg@domain.hid>
To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: xenomai-help <xenomai@xenomai.org>
Subject: Re: [Xenomai-help] pthread cancelation and scheduling magics
Date: Sun, 07 Dec 2008 17:05:15 +0100	[thread overview]
Message-ID: <493BF43B.4080208@domain.hid> (raw)
In-Reply-To: <49358003.1080705@domain.hid>

Hi Gilles,

Gilles Chanteperdrix wrote:
> Wolfgang Grandegger wrote:

>> I'm also puzzled why pthread_setschedparam() does make a mode switch
>> to secondary mode (sometimes).
> 
> That is normal. The glibc caches threads priority value, so we have to
> call __real_pthread_setschedparam to update them. This issue has been
> solved differently on trunk, but unfortunately, we can not backport this
> modification on v2.4.x branch.

To get you right. With v2.4.x it is not possible with the POSIX skin to
change the priority of a real-time thread in the primary mode without
loosing determinism (because it will switch to secondary mode). What
options do I have?

Wolfgang.




  parent reply	other threads:[~2008-12-07 16:05 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-30 21:34 [Xenomai-help] pthread cancelation and scheduling magics Wolfgang Grandegger
2008-11-30 21:46 ` Gilles Chanteperdrix
2008-11-30 21:59 ` Gilles Chanteperdrix
2008-12-01 10:22   ` Gilles Chanteperdrix
2008-12-01 14:16     ` Wolfgang Grandegger
2008-12-01 14:15       ` Gilles Chanteperdrix
2008-12-01 15:10         ` Gilles Chanteperdrix
2008-12-02 15:59           ` Wolfgang Grandegger
2008-12-02 15:55             ` Gilles Chanteperdrix
2008-12-02 18:18               ` Wolfgang Grandegger
2008-12-02 18:35                 ` Gilles Chanteperdrix
2008-12-02 19:50                   ` Wolfgang Grandegger
2008-12-02 20:03                     ` Philippe Gerum
2008-12-07 16:05                   ` Wolfgang Grandegger [this message]
2008-12-10 11:16                     ` Wolfgang Grandegger
2008-12-11 15:26                       ` Jan Kiszka
2008-12-13 15:55                         ` Wolfgang Grandegger
2009-01-01 13:34                       ` Gilles Chanteperdrix
2009-01-01 17:07                         ` Philippe Gerum
2009-01-01 18:00                           ` Gilles Chanteperdrix
2009-01-09 13:08                           ` Gilles Chanteperdrix
2009-01-09 13:38                             ` Philippe Gerum
2009-01-01 17:10                         ` Wolfgang Grandegger
2009-01-01 18:11                           ` Gilles Chanteperdrix
2008-12-03 10:16                 ` Gilles Chanteperdrix
2008-12-03 11:19                   ` Wolfgang Grandegger
2008-12-03 13:30                     ` Gilles Chanteperdrix
2008-12-03 18:02                       ` Wolfgang Grandegger
2008-12-03 17:57                         ` Gilles Chanteperdrix
2008-12-03 18:37                           ` Wolfgang Grandegger
2008-12-03 18:32                             ` Gilles Chanteperdrix
2008-12-03 18:55                               ` Wolfgang Grandegger
2008-12-03 18:55                                 ` Gilles Chanteperdrix
2008-12-03 19:19                                   ` Wolfgang Grandegger
2008-12-03 19:19                                     ` Gilles Chanteperdrix
2008-12-03 20:02                                       ` Wolfgang Grandegger
2008-12-03 20:02                                         ` Gilles Chanteperdrix
2008-12-04 15:29                                           ` Wolfgang Grandegger
2008-12-04 15:38                                             ` Gilles Chanteperdrix
2008-12-04 15:42                                               ` Gilles Chanteperdrix
2008-12-04 16:31                                               ` Wolfgang Grandegger
2008-12-04 16:26                                                 ` Gilles Chanteperdrix
2008-12-04 16:49                                                   ` Wolfgang Grandegger
2008-12-04 17:02                                                     ` Gilles Chanteperdrix
2008-12-04 17:52                                                       ` Wolfgang Grandegger
2008-12-04 17:51                                                         ` Gilles Chanteperdrix
2008-12-05 14:58                                                       ` Wolfgang Grandegger
2008-12-03  8:04         ` Wolfgang Grandegger
2008-12-03 10:12           ` Gilles Chanteperdrix
2008-12-03 10:46             ` Wolfgang Grandegger
2008-12-03 10:40               ` Gilles Chanteperdrix
2008-12-03 11:16                 ` Wolfgang Grandegger
2008-12-03 11:11               ` Philippe Gerum
2008-12-03 11:22                 ` Wolfgang Grandegger
2008-12-01 13:31   ` Wolfgang Grandegger

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=493BF43B.4080208@domain.hid \
    --to=wg@domain.hid \
    --cc=gilles.chanteperdrix@xenomai.org \
    --cc=xenomai@xenomai.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.