From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261971AbVFGUUb (ORCPT ); Tue, 7 Jun 2005 16:20:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261963AbVFGUUb (ORCPT ); Tue, 7 Jun 2005 16:20:31 -0400 Received: from omx1-ext.sgi.com ([192.48.179.11]:1442 "EHLO omx1.americas.sgi.com") by vger.kernel.org with ESMTP id S261966AbVFGUUS (ORCPT ); Tue, 7 Jun 2005 16:20:18 -0400 Date: Tue, 7 Jun 2005 15:19:49 -0500 From: Dean Nelson To: Steven Rostedt Cc: mingo@elte.hu, linux-ia64@vger.kernel.org, linux-altix@sgi.com, edwardsg@sgi.com, linux-kernel@vger.kernel.org, akpm@osdl.org, anton.wilson@camotion.com Subject: Re: [PATCH] MAX_USER_RT_PRIO and MAX_RT_PRIO are wrong! Message-ID: <20050607201949.GA11013@sgi.com> References: <1118112390.4533.10.camel@localhost.localdomain> <20050607053306.GA16181@elte.hu> <1118143504.4533.21.camel@localhost.localdomain> <20050607154846.GA1253@sgi.com> <1118165519.5667.3.camel@localhost.localdomain> <20050607191001.GA8768@sgi.com> <1118172182.4972.4.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1118172182.4972.4.camel@localhost.localdomain> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 07, 2005 at 03:23:02PM -0400, Steven Rostedt wrote: > On Tue, 2005-06-07 at 14:10 -0500, Dean Nelson wrote: > > > I just built and tested a kernel and xp/xpc/xpnet modules with your patch > > applied. It ran fine. The priorities of the xpc kthreads were correct. > > > > Looks good to me. > > Dean, > > If you can do me a favor, the way you really want to test this is by > changing MAX_USER_RT_PRIO to 99 and MAX_RT_PRIO to > (MAX_USER_RT_PRIO+1). This will make sure that the patch is working. > Your kernel thread should still run at priority 99. > > Check it with: ps -eo pid,rtprio,comm > > And grep for your thread name. Just did as you asked and things seem fine. Ran on an SGI altix. (The first process shown below shouldn't have a priority of 99, just the others.) cranberry5:~ # ps -eo pid,rtprio,comm | grep xpc 13325 - xpc_hb 13327 99 xpc08 13467 99 xpc06 13469 99 xpc06c1 13501 99 xpc06c1 13502 99 xpc06c1 cranberry5:~ #