Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 21 Feb 2002 11:52:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 21 Feb 2002 11:52:13 -0500 Received: from zero.tech9.net ([209.61.188.187]:26635 "EHLO zero.tech9.net") by vger.kernel.org with ESMTP id ; Thu, 21 Feb 2002 11:52:09 -0500 Subject: Re: 2.5.5 on Sparc, Ughh... From: Robert Love To: george anzinger Cc: "David S. Miller" , bruce.holzrichter@monster.com, ultralinux@vger.kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <3C74AA0C.A627B561@mvista.com> In-Reply-To: <3AB544CBBBE7BF428DA7DBEA1B85C79C01101F6B@nocmail.ma.tmpw.net> <20020220.083904.74754277.davem@redhat.com> <3C74AA0C.A627B561@mvista.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Evolution/1.0.2 Date: 21 Feb 2002 11:52:08 -0500 Message-Id: <1014310329.847.17.camel@phantasy> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2002-02-21 at 03:04, george anzinger wrote: > Uh, Dave, could you expound a bit on why you need a preemption lock > around the notify parent/ schedule code? We have not found this to be > needed on other archs, but maybe we missed something. 2.5 has diverged from the "patch" version of the code. We removed the PREEMPT_ACTIVE flag and thus have a race against parent/wake up. All arches disable preemption there. Robert Love - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/