From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761527AbXK1Wuw (ORCPT ); Wed, 28 Nov 2007 17:50:52 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758793AbXK1Wun (ORCPT ); Wed, 28 Nov 2007 17:50:43 -0500 Received: from main.gmane.org ([80.91.229.2]:56268 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758174AbXK1Wum (ORCPT ); Wed, 28 Nov 2007 17:50:42 -0500 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: Frederik Himpe Subject: Re: 2.6.24-rc3-git3: usb hardware interrupts using 25% of CPU time Date: Wed, 28 Nov 2007 22:50:26 +0000 (UTC) Message-ID: References: <200711290002.01850.rjw@sisk.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: d54c1e7e8.access.telenet.be User-Agent: Pan/0.132 (Waxed in Black) Cc: linux-usb-devel@lists.sourceforge.net Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 29 Nov 2007 00:02:01 +0100, Rafael J. Wysocki wrote: > On Wednesday, 28 of November 2007, Frederik Himpe wrote: >> I installed Linux 2.6.24-rc3-git3 on a PPC based Apple Powerbook G4 >> system. Now with top I see that over 20% of CPU time is used by >> hardware interrupts. Looking at /proc/interrupts, the number in the row >> ohci_hcd:usb1 is rising very quickly: > > What's the last kernel that worked correctly? Actually I'm not sure: the kernel I was running before was Debian's 2.6.22 kernel package -- Frederik