Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262684AbTHZFsZ (ORCPT ); Tue, 26 Aug 2003 01:48:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262661AbTHZFsZ (ORCPT ); Tue, 26 Aug 2003 01:48:25 -0400 Received: from almesberger.net ([63.105.73.239]:31240 "EHLO host.almesberger.net") by vger.kernel.org with ESMTP id S262684AbTHZFsP (ORCPT ); Tue, 26 Aug 2003 01:48:15 -0400 Date: Tue, 26 Aug 2003 02:48:08 -0300 From: Werner Almesberger To: Nagendra Singh Tomar Cc: linux-kernel@vger.kernel.org Subject: Re: tasklet_kill will always hang for recursive tasklets on a UP Message-ID: <20030826024808.B3448@almesberger.net> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: ; from nagendra_tomar@adaptec.com on Mon, Aug 25, 2003 at 05:30:16AM +0530 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1233 Lines: 28 Nagendra Singh Tomar wrote: > While going thru the code for tasklet_kill(), I cannot figure out > how recursive tasklets (tasklets that schedule themselves from within > their tasklet handler) can be killed by this function. To me it looks that > tasklet_kill will never complete for such tasklets. That's also what I found when looking at it a while ago. This isn't necessarily a bug of tasklet_kill, just some behaviour that needs to be documented. You can always introduce a flag that tells the tasklet if it should reschedule itself, and clear that flag before calling tasklet_kill. When I looked at it (I think this was in some 2.4 kernel), it also seemed that tasklet_kill could loop forever if the tasklet is scheduled but disabled. - Werner -- _________________________________________________________________________ / Werner Almesberger, Buenos Aires, Argentina wa@almesberger.net / /_http://www.almesberger.net/____________________________________________/ - 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/