Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 12 Jul 2002 18:51:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 12 Jul 2002 18:51:33 -0400 Received: from holomorphy.com ([66.224.33.161]:43423 "EHLO holomorphy") by vger.kernel.org with ESMTP id ; Fri, 12 Jul 2002 18:51:31 -0400 Date: Fri, 12 Jul 2002 15:53:18 -0700 From: William Lee Irwin III To: linux-kernel@vger.kernel.org, rml@tech9.net Subject: Re: NUMA-Q breakage 5/7 in_interrupt() race Message-ID: <20020712225318.GA21551@holomorphy.com> Mail-Followup-To: William Lee Irwin III , linux-kernel@vger.kernel.org, rml@tech9.net References: <20020712224003.GC25360@holomorphy.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20020712224003.GC25360@holomorphy.com> 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: 811 Lines: 19 On Fri, Jul 12, 2002 at 03:40:03PM -0700, William Lee Irwin III wrote: > On smaller machines, bootstrapping proceeds far enough to see races > in kmaps near generic_file_read() etc. This is precisely the > in_interrupt() BUG(), but it's quite clear this is happening in > process context. Not even the smaller machines can survive this. > That is, it is impossible to run at all without it (or an equivalent). > Robert, please apply. Argh, I forgot to credit Rusty Russell (and possibly also Paul Mackerras) with originally discovering & fixing this. Cheers, Bill - 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/