Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S272066AbTG2Uk5 (ORCPT ); Tue, 29 Jul 2003 16:40:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S272069AbTG2Uk5 (ORCPT ); Tue, 29 Jul 2003 16:40:57 -0400 Received: from grieg.holmsjoen.com ([206.124.139.154]:30738 "EHLO grieg.holmsjoen.com") by vger.kernel.org with ESMTP id S272066AbTG2Ukw (ORCPT ); Tue, 29 Jul 2003 16:40:52 -0400 Date: Tue, 29 Jul 2003 13:40:46 -0700 From: Randolph Bentson To: John Bradford Cc: linux-kernel@vger.kernel.org, pgw99@doc.ic.ac.uk Subject: Re: PATCH : LEDs - possibly the most pointless kernel subsystem ever Message-ID: <20030729134046.A8007@grieg.holmsjoen.com> References: <200307292038.h6TKcqlu000338@81-2-122-30.bradfords.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <200307292038.h6TKcqlu000338@81-2-122-30.bradfords.org.uk>; from john@grabjohn.com on Tue, Jul 29, 2003 at 09:38:52PM +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 680 Lines: 19 On Tue, Jul 29, 2003 at 09:38:52PM +0100, John Bradford wrote: > Ah, I just thought, for debugging purposes we could have LEDs for: > > * BKL taken > * Servicing interrupt > * Kernel stack usage > 2K In the way olden days we used the console lights for a realtime display of buffer use on a PDP-11. This type of realtime display can be most useful, especially if it's easily configurable. -- Randolph Bentson bentson@holmsjoen.com - 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/