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, 18 Nov 2002 13:10:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 18 Nov 2002 13:10:19 -0500 Received: from packet.digeo.com ([12.110.80.53]:34758 "EHLO packet.digeo.com") by vger.kernel.org with ESMTP id ; Mon, 18 Nov 2002 13:10:17 -0500 Message-ID: <3DD92E92.EEB9ECD6@digeo.com> Date: Mon, 18 Nov 2002 10:16:50 -0800 From: Andrew Morton X-Mailer: Mozilla 4.79 [en] (X11; U; Linux 2.5.46 i686) X-Accept-Language: en MIME-Version: 1.0 To: Dave Hansen CC: William Lee Irwin III , "Martin J. Bligh" , linux-kernel@vger.kernel.org, mingo@elte.hu, rml@tech9.net, riel@surriel.com, akpm@zip.com.au Subject: Re: unusual scheduling performance References: <20021118081854.GJ23425@holomorphy.com> <705474709.1037608454@[10.10.2.3]> <20021118165316.GK23425@holomorphy.com> <3DD92914.1060301@us.ibm.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 18 Nov 2002 18:16:50.0830 (UTC) FILETIME=[AA4DFAE0:01C28F2E] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Dave Hansen wrote: > > ... > rwsem_down_write_failed: 133 133 Possible culprit. Please stick a dump_stack() in rwsem_down_write_failed(), and add the below. Suggest you stick with 2.5.47 to diagnose this. The loss of kksymoops is a pain. fs/eventpoll.c | 2 ++ 1 files changed, 2 insertions(+) --- 25/fs/eventpoll.c~hey Mon Nov 18 10:13:40 2002 +++ 25-akpm/fs/eventpoll.c Mon Nov 18 10:14:01 2002 @@ -328,6 +328,8 @@ void eventpoll_release(struct file *file if (list_empty(lsthead)) return; + printk("hey!\n"); + /* * We don't want to get "file->f_ep_lock" because it is not * necessary. It is not necessary because we're in the "struct file" _