Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964912AbXBTOAx (ORCPT ); Tue, 20 Feb 2007 09:00:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964915AbXBTOAx (ORCPT ); Tue, 20 Feb 2007 09:00:53 -0500 Received: from marmot.shef.ac.uk ([143.167.1.4]:41152 "EHLO marmot.shef.ac.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964912AbXBTOAw (ORCPT ); Tue, 20 Feb 2007 09:00:52 -0500 X-Greylist: delayed 2013 seconds by postgrey-1.27 at vger.kernel.org; Tue, 20 Feb 2007 09:00:52 EST Subject: sparc64 / bbc_i2c.c From: "J.J. Green" To: linux-kernel@vger.kernel.org Content-Type: text/plain Organization: University of Sheffield Date: Tue, 20 Feb 2007 13:27:12 +0000 Message-Id: <1171978032.18442.11.camel@lax.shef.ac.uk> Mime-Version: 1.0 X-Mailer: Evolution 2.6.3 Content-Transfer-Encoding: 7bit X-S0phie-Scan: no Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 898 Lines: 39 Hi all I got bitten by this problem on sparc64 (a blade 1000) http://ubuntuforums.org/showthread.php?t=297474 summary : modprobe bbc runs kenvctrld which uses 100% of a CPU for 5 seconds, then 0% for 5 seconds, then 100% .. and so on. The author cited above suggests removing the line remove_wait_queue(&bp->wq, &wait); in the function static int wait_for_pin(struct bbc_i2c_bus *bp, u8 *status) Is there a better way? I can test patches if that would be helpful. Cheers Jim -- J.J. Green, Dept. Applied Mathematics, Hicks Bld., University of Sheffield, UK. +44 (0114) 222 3742 http://pdfb.wiredworkplace.net/pub/jjg - 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/