From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261909AbVFGPtZ (ORCPT ); Tue, 7 Jun 2005 11:49:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261910AbVFGPtZ (ORCPT ); Tue, 7 Jun 2005 11:49:25 -0400 Received: from omx1-ext.sgi.com ([192.48.179.11]:57009 "EHLO omx1.americas.sgi.com") by vger.kernel.org with ESMTP id S261909AbVFGPtT (ORCPT ); Tue, 7 Jun 2005 11:49:19 -0400 Date: Tue, 7 Jun 2005 10:48:46 -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: <20050607154846.GA1253@sgi.com> References: <1118112390.4533.10.camel@localhost.localdomain> <20050607053306.GA16181@elte.hu> <1118143504.4533.21.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1118143504.4533.21.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 07:25:04AM -0400, Steven Rostedt wrote: > On Tue, 2005-06-07 at 07:33 +0200, Ingo Molnar wrote: > > * Steven Rostedt wrote: > > > > > I tested the patch on an SMP machine where MAX_RT_PRIO = 100 and > > > MAX_USER_RT_PRIO = 99. Without the patch, the system crashes with a > > > reboot. > > > > Acked-by: Ingo Molnar > > If this patch does go in, then xpc_activating in > arch/ia64/sn/kernel/xpc_main.c (from rc6) also needs to use MAX_RT_PRIO > instead of MAX_USER_RT_PRIO. Unless it is OK that it runs lower in > priority than other kernel threads. You are correct xpc_activating() needs to be changed to use MAX_RT_PRIO. So please do add that change to your patch. Thanks, Dean