From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Klotz Subject: Re: PIONEER DVD-RW DVRTD08 is disabled if there is no disc present at boot time Date: Mon, 29 Dec 2008 23:11:07 +0100 Message-ID: <49594AFB.9030703@aon.at> References: <1229894315.6931.17.camel@Thutmosis> <494EDDBE.3010306@shaw.ca> <494F65C1.80602@kernel.org> <1229947998.6045.10.camel@Thutmosis> <49505500.8080409@kernel.org> <1230126055.6430.17.camel@Thutmosis> <495886E7.7050204@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from warsl404pip4.highway.telekom.at ([195.3.96.117]:5822 "EHLO email.aon.at" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753454AbYL2WLM (ORCPT ); Mon, 29 Dec 2008 17:11:12 -0500 Received: from 91-114-254-251.adsl.highway.telekom.at (HELO [192.168.0.100]) ([91.114.254.251]) (envelope-sender ) by smarthub92.highway.telekom.at (qmail-ldap-1.03) with SMTP for ; 29 Dec 2008 22:11:08 -0000 In-Reply-To: <495886E7.7050204@kernel.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: linux-ide@vger.kernel.org Tejun Heo wrote: >> * and the error log when a CD can't be read looks like this (dmesg tail) >> [ 227.213893] sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK >> driverbyte=DRIVER_SENSE,SUGGEST_OK >> [ 227.213914] sr 1:0:0:0: [sr0] Sense Key : Medium Error [current] >> [ 227.213926] Info fld=0x2e81 >> [ 227.213930] sr 1:0:0:0: [sr0] Add. Sense: L-EC uncorrectable error >> [ 227.213942] end_request: I/O error, dev sr0, sector 47616 >> [ 227.213954] Buffer I/O error on device sr0, logical block 5952 >> [ 234.227424] sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK >> driverbyte=DRIVER_SENSE,SUGGEST_OK >> [ 234.227446] sr 1:0:0:0: [sr0] Sense Key : Medium Error [current] >> [ 234.227457] Info fld=0x2e81 >> [ 234.227461] sr 1:0:0:0: [sr0] Add. Sense: L-EC uncorrectable error >> [ 234.227473] end_request: I/O error, dev sr0, sector 47616 >> [ 234.227484] Buffer I/O error on device sr0, logical block 5952 >> [ 241.163142] sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK >> driverbyte=DRIVER_SENSE,SUGGEST_OK > ... > > Those errors shouldn't have much to do with how the transport is > configured. These are the drive failing to read the media and these > errors can be quite indetermininstic, so it's possible that the > pattern really isn't a pattern but then again the drive doesn't seem > to have much problem being peculiar. Can you please test more times > and verify the pattern? > These errors remind me of this Ubuntu 8.10 bug: https://bugs.launchpad.net/ubuntu/+bug/295795 This bug only shows up on discs burnt with Brasero, never on discs burnt with K3b. Regards, Peter.