Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753180AbXJ3BTU (ORCPT ); Mon, 29 Oct 2007 21:19:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752525AbXJ3BTK (ORCPT ); Mon, 29 Oct 2007 21:19:10 -0400 Received: from sovereign.computergmbh.de ([85.214.69.204]:43677 "EHLO sovereign.computergmbh.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752486AbXJ3BTJ (ORCPT ); Mon, 29 Oct 2007 21:19:09 -0400 Date: Tue, 30 Oct 2007 02:19:07 +0100 (CET) From: Jan Engelhardt To: Lee Revell cc: Greg KH , Tilman Schmidt , Adrian Bunk , Simon Arlott , Chris Wright , linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, Linus Torvalds , Andreas Gruenbacher , Thomas Fricaccia , Jeremy Fitzhardinge , James Morris , Crispin Cowan , Giacomo Catenazzi , Alan Cox Subject: Re: Out-of-tree modules [was: Linux Security *Module* Framework] In-Reply-To: <75b66ecd0710291746m7aec81bdsb6ddc0822439ff46@mail.gmail.com> Message-ID: References: <471E9260.6000704@goop.org> <20071023220649.5a76af82@laptopd505.fenrus.org> <55615.simon.1193226629@5ec7c279.invalid> <20071024125533.GE30533@stusta.de> <471F8AC5.9080300@simon.arlott.org.uk> <20071024223124.GI30533@stusta.de> <4721221A.1020309@imap.cc> <20071026025647.GC21408@kroah.com> <75b66ecd0710291746m7aec81bdsb6ddc0822439ff46@mail.gmail.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1993 Lines: 46 On Oct 29 2007 20:46, Lee Revell wrote: >On 10/29/07, Jan Engelhardt wrote: >> quad_dsp - http://jengelh.hopto.org/p/quad_dsp/ >> >> Provides a /dev/dsp style node for legacy applications that support >> neither ALSA nor the AOSS wrapper nor more-than-2-channel sound. >> > >(I think that should read "AND more than 2 channel sound") It is for programs that only give out 2 channels of audio data. Qdsp_dpl2 is a node that applies the DPL2 matrix on these two channels, yielding the rear 2 channels, giving some sort of surround effect. >Couldn't ALSA's OSS emulation be extended to support more than 2 >channels per device node? I figured that exceeded my skills at that time. >> thkd - ftp://ftp5.gwdg.de/pub/linux/misc/suser-jengelh/kernel/linux-2.6.23.1-ccj58/thkd.diff >> >> Workaround for Toshiba MK2003GAH hard-drive head auto-unloading after >> 5-15 seconds. (Ref: http://lkml.org/lkml/2006/11/15/100 ) > >It looks like this could be trivially fixed in a mergeable way. That >LKML thread petered out before the problem was seriously analyzed. > >Did you try the -Z flag of hdparm? IIRC, yes, been through all sorts of hdparm options. -Z did not help at all, and -B only prolonged the delay from 5 to around 15 seconds. I contacted Tosh Corp (before posting on lkml) and while they know of the 'issue', I did not get a satisfactory answer (namely how to FIX it), so I thought why spend time slapping if there's a workaround... Causing a minimal head seek every now and then (4096 bytes per 3 seconds is a somewhat small block size with a not-too-low interval) is a working workaround for now. The module code is not top notch, but I doubt I'll ever have more than one 1.8" MK2003GAH disk in the same laptop. - 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/