From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Raoul Bhatia [IPAX]" Subject: Re: aic94xx driver woes continued Date: Thu, 20 Mar 2008 22:08:56 +0100 Message-ID: <47E2D268.2070609@ipax.at> References: <47E2B044.70705@ipax.at> <1206039714.3038.40.camel@localhost.localdomain> <47E2B7EF.1050203@ipax.at> <1206043027.3038.48.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail.ipax.at ([80.64.143.40]:35975 "EHLO mail.ipax.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756399AbYCTVJB (ORCPT ); Thu, 20 Mar 2008 17:09:01 -0400 In-Reply-To: <1206043027.3038.48.camel@localhost.localdomain> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: James Bottomley Cc: linux-scsi@vger.kernel.org hi james, James Bottomley wrote: > A work around might be to lower the queue depth to say 4 or 8 and up the > retries (this latter can only be done by altering the SD_MAX_RETRIES > parameter in include/scsi/sd.h and recompiling). any suggestions for these parameters: include/scsi/sd.h: > #define SD_TIMEOUT (30 * HZ) > #define SD_MOD_TIMEOUT (75 * HZ) > > #define SD_MAX_RETRIES 5 > #define SD_PASSTHROUGH_RETRIES 1 shall i alter the timeouts? what is a good value for the retries? time it by 2? by 5? by 10? moreover, where can i lower the queue? cheers, raoul -- ____________________________________________________________________ DI (FH) Raoul Bhatia M.Sc. email. r.bhatia@ipax.at Technischer Leiter IPAX - Aloy Bhatia Hava OEG web. http://www.ipax.at Barawitzkagasse 10/2/2/11 email. office@ipax.at 1190 Wien tel. +43 1 3670030 FN 277995t HG Wien fax. +43 1 3670030 15 ____________________________________________________________________