From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 27 May 2002 23:24:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 27 May 2002 23:24:39 -0400 Received: from relay1.pair.com ([209.68.1.20]:5389 "HELO relay.pair.com") by vger.kernel.org with SMTP id ; Mon, 27 May 2002 23:24:39 -0400 X-pair-Authenticated: 24.126.73.164 Message-ID: <3CF2F897.EF17FB0E@kegel.com> Date: Mon, 27 May 2002 20:25:11 -0700 From: Dan Kegel Reply-To: dank@kegel.com X-Mailer: Mozilla 4.78 [en] (X11; U; Linux 2.4.7-10 i686) X-Accept-Language: en MIME-Version: 1.0 To: Aaron Sethman , "linux-kernel@vger.kernel.org" , pwaechtler@loewe-komp.de, austin@digitalroadkill.net Subject: Re: RT Sigio broken on 2.4.19-pre8 In-Reply-To: <3CF2D86C.8745D791@kegel.com> <3CF2DCDE.CCBB499F@kegel.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Aaron Sethman wrote: > > > > > > Using the Dan Kegel's Poller_bench utility I noticed that RT SIGIO is not > > > > > > working on 2.4.19-pre8. Basically sigtimedwait() is always returning > > > > > > SIGIO. Note that 2.4.18 works fine. > > > > > > ... It seems rtsig-nr keeping rising slowly as the system runs. > > > > > > That sounds like the way I'm clearing the signal queue is not working. > > > Here's a minimal test case for clearing the signal queue. Could > > > you try it and tell me what it says? > > Just tried the corrected version, still passed. I can't reproduce the problem here. What version of dkftpbench are you using? What parameters? Can you send me your kernel .config file? I did notice and fix an embarassing problem in Poller_bench of dkftpbench-0.42; it aborted when Poller_sigio sent its initial readiness notification (it's spurious, but programs are supposed to be able to handle that). Fix is at http://www.kegel.com/dkftpbench/pb.patch Thanks, Dan