From mboxrd@z Thu Jan 1 00:00:00 1970 From: Emmanuel Florac Subject: Re: Burning multiple DVDs at one time Date: Sat, 17 Mar 2012 11:53:24 +0100 Message-ID: <20120317115324.10b39bb7@galadriel.home> References: <20120315225310.GB3152@animx.eu.org> <20120317095644.145d0588@stein> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from smtp3-g21.free.fr ([212.27.42.3]:49583 "EHLO smtp3-g21.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756743Ab2CQKxz convert rfc822-to-8bit (ORCPT ); Sat, 17 Mar 2012 06:53:55 -0400 In-Reply-To: <20120317095644.145d0588@stein> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Stefan Richter Cc: Wakko Warner , linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org Le Sat, 17 Mar 2012 09:56:44 +0100 vous =C3=A9criviez: > This is likely due to serialization by a global mutex in the sr > driver. Have a look at thread "[PATCH] [SCSI] sr: fix multi-drive > performance, remove BKL replacement" from February. > https://lkml.org/lkml/2012/2/28/230=20 When was this regression introduced? I have a dedicated cd burning machine running 2.6.35.x, and it works great with 4 drives at a time. --=20 -----------------------------------------------------------------------= - Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 -----------------------------------------------------------------------= - -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html