Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751131AbVIFXlE (ORCPT ); Tue, 6 Sep 2005 19:41:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751132AbVIFXlD (ORCPT ); Tue, 6 Sep 2005 19:41:03 -0400 Received: from ms-smtp-04.nyroc.rr.com ([24.24.2.58]:63628 "EHLO ms-smtp-04.nyroc.rr.com") by vger.kernel.org with ESMTP id S1751131AbVIFXlC (ORCPT ); Tue, 6 Sep 2005 19:41:02 -0400 Subject: Re: RFC: i386: kill !4KSTACKS From: Steven Rostedt To: Daniel Phillips Cc: linux-kernel@vger.kernel.org, Giridhar Pemmasani , Andi Kleen In-Reply-To: <200509061836.07813.phillips@istop.com> References: <20050904145129.53730.qmail@web50202.mail.yahoo.com> <200509061819.45567.phillips@istop.com> <200509070021.29959.ak@suse.de> <200509061836.07813.phillips@istop.com> Content-Type: text/plain Organization: Kihon Technologies Date: Tue, 06 Sep 2005 19:40:44 -0400 Message-Id: <1126050044.5601.47.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 660 Lines: 18 On Tue, 2005-09-06 at 18:36 -0400, Daniel Phillips wrote: > But then how would thread_info->task on the irq stack ever get initialized? > > My "what for" question was re why interrupt routines even need a valid > current. I see one answer out there on the web: statistical profiling. Is > that it? scheduler_tick - This is called from the timer interrupt, and it definitely needs a valid current. -- Steve - 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/