Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 6 Mar 2003 22:57:32 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 6 Mar 2003 22:57:32 -0500 Received: from 130.146.174.203.mel.ntt.net.au ([203.174.146.130]:15495 "EHLO enki.rimspace.net") by vger.kernel.org with ESMTP id ; Thu, 6 Mar 2003 22:57:31 -0500 To: Linux Kernel Mailing List Subject: Re: Disabling ATAPI retry? In-Reply-To: <1046991672.17715.134.camel@irongate.swansea.linux.org.uk> (Alan Cox's message of "06 Mar 2003 23:01:12 +0000") References: <3e67c49b.7c12.1804289383@wideopenwest.com> <1046991672.17715.134.camel@irongate.swansea.linux.org.uk> From: Daniel Pittman Organization: Not today, thank you, Mother. Date: Fri, 07 Mar 2003 15:08:02 +1100 Message-ID: <87k7fbq0nx.fsf@enki.rimspace.net> User-Agent: Gnus/5.090016 (Oort Gnus v0.16) XEmacs/21.5 (cabbage) 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: 1310 Lines: 33 On 06 Mar 2003, Alan Cox wrote: > On Thu, 2003-03-06 at 20:58, kelleycook@wideopenwest.com wrote: >> Is there a boot parameter or a runtime command that can tell >> the linux IDE driver not to automatically retry on error. > > There isn't. You can always build a kernel set not to, but even then > it takes the drive firmware a sizeable time to retry a block. Hrm. Is this something that is likely to be introduced at some point? My interest lies in the fact that I use a Linux based DVD player which locked up for around twenty minutes the other night trying to read a dozen bad blocks on a DVD with a single scratch... Being able to reduce that time lag to a minimum, even if it left the hardware delays, would be great -- even if it was only for ATAPI devices. The biggest slowdown was the kernel retrying each block a number of times, then performing a full ATAPI bus reset before giving up. Daniel -- Why could one never do a natural thing without having to screen it behind a structure of artifice? -- Edith Wharton, _House of Mirth_ - 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/