Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 20 Feb 2003 17:33:10 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 20 Feb 2003 17:33:10 -0500 Received: from holomorphy.com ([66.224.33.161]:30881 "EHLO holomorphy") by vger.kernel.org with ESMTP id ; Thu, 20 Feb 2003 17:33:09 -0500 Date: Thu, 20 Feb 2003 14:42:05 -0800 From: William Lee Irwin III To: Ingo Molnar Cc: Andrew Morton , Linus Torvalds , zwane@holomorphy.com, cw@f00f.org, linux-kernel@vger.kernel.org, mbligh@aracnet.com Subject: Re: doublefault debugging (was Re: Linux v2.5.62 --- spontaneous reboots) Message-ID: <20030220224205.GD29983@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Ingo Molnar , Andrew Morton , Linus Torvalds , zwane@holomorphy.com, cw@f00f.org, linux-kernel@vger.kernel.org, mbligh@aracnet.com References: <20030220125021.03c6d39c.akpm@digeo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.3.25i Organization: The Domain of Holomorphy Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 668 Lines: 18 On Thu, 20 Feb 2003, Andrew Morton wrote: >> Fixes two deadlocks in the scheduler exit path: >> 1: We're calling mmdrop() under spin_lock_irq(&rq->lock). But mmdrop >> calls vfree(), which calls smp_call_function(). On Thu, Feb 20, 2003 at 11:04:41PM +0100, Ingo Molnar wrote: > this has been fixed in the -F3 scheduler patch. Not quite. It leaks mm's because schedule_tail() isn't cleaning up rq->prev_mm. -- wli - 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/