From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Clark Subject: Re: NEC ND-4550A problems reading DVD-R Date: Tue, 01 Mar 2011 10:47:41 -0500 Message-ID: <4D6D151D.8030307@earthlink.net> References: <20110301080153.GA26074@htj.dyndns.org> <4D6CF92A.4020105@teksavvy.com> Reply-To: sclark46@earthlink.net Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from elasmtp-curtail.atl.sa.earthlink.net ([209.86.89.64]:50242 "EHLO elasmtp-curtail.atl.sa.earthlink.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756742Ab1CAPrt (ORCPT ); Tue, 1 Mar 2011 10:47:49 -0500 In-Reply-To: <4D6CF92A.4020105@teksavvy.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Mark Lord Cc: Tejun Heo , Krzysztof Halasa , linux-ide@vger.kernel.org, lkml , linux-scsi@vger.kernel.org On 03/01/2011 08:48 AM, Mark Lord wrote: > On 11-03-01 03:01 AM, Tejun Heo wrote: > .. > >> I think that's determined by drivers/scsi/sr.h::SR_TIMEOUT which is >> hardcoded to be 30 seconds. Maybe it's better to move it to use the >> block parameter. Anyways, the drive actually takes longer than 30secs >> to recognize the media? >> > That slow behaviour is not uncommon, especially as drives struggle > to recognize various forms of copy-protected media (DVD-Video). > A longer default, or tuneable timeout, would help. > > Cheers > > -- > 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/ > > I agree with Mark, this should be a user tuneable value. My 2006 LG dvd-rw frequently times out trying to identify the media. But after numerous timeout error messages it usually suceeds. -- "They that give up essential liberty to obtain temporary safety, deserve neither liberty nor safety." (Ben Franklin) "The course of history shows that as a government grows, liberty decreases." (Thomas Jefferson)