From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751379AbVJ2ILF (ORCPT ); Sat, 29 Oct 2005 04:11:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751378AbVJ2ILE (ORCPT ); Sat, 29 Oct 2005 04:11:04 -0400 Received: from smtp.osdl.org ([65.172.181.4]:48559 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1751379AbVJ2ILC (ORCPT ); Sat, 29 Oct 2005 04:11:02 -0400 Date: Sat, 29 Oct 2005 01:09:45 -0700 From: Andrew Morton To: bugme-daemon@kernel-bugs.osdl.org Cc: morfic@gentoo.org, kraftb@kraftb.at, migo@abp.pl, linux-kernel@vger.kernel.org, Andi Kleen Subject: Re: [Bug 5039] high cpu usage (softirq takes 50% all the time) Message-Id: <20051029010945.623a8dab.akpm@osdl.org> In-Reply-To: <200510290754.j9T7sqAg027452@fire-1.osdl.org> References: <200510290754.j9T7sqAg027452@fire-1.osdl.org> X-Mailer: Sylpheed version 1.0.4 (GTK+ 1.2.10; i386-redhat-linux-gnu) Mime-Version: 1.0 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 bugme-daemon@kernel-bugs.osdl.org wrote: > > http://bugzilla.kernel.org/show_bug.cgi?id=5039 > Well this is a depressing saga. A bunch of people whose machines appear to be spending 50% CPU time in softirq processing. Some find that `noapic' fixes it and some dont. Some are on x86_64, some are on x86. I suspect we have multiple bugs here. It's quite a mess. Could the reporters please, via a reply-to-all to this email: a) test 2.6.14. b) summarise the current status of your bug (what CPU type, what are the symptoms, any known workarounds, etc). c) Generate a kernel profile (see Documentation/basic_profiling.txt) Generally, let's get a bit of action happening here and see if we can get these relatively long-standing regressions fixed up, thanks.