From owner-freebsd-stable@FreeBSD.ORG Thu Apr 29 09:12:25 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1AA721065670; Thu, 29 Apr 2010 09:12:25 +0000 (UTC) (envelope-from petefrench@ticketswitch.com) Received: from constantine.ticketswitch.com (angel.ticketswitch.com [87.224.29.78]) by mx1.freebsd.org (Postfix) with ESMTP id D188A8FC1D; Thu, 29 Apr 2010 09:12:24 +0000 (UTC) Received: from dilbert.rattatosk ([10.64.50.6] helo=dilbert.ticketswitch.com) by constantine.ticketswitch.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.69 (FreeBSD)) (envelope-from ) id 1O7PS0-000Iyu-AC; Thu, 29 Apr 2010 09:50:28 +0100 Received: from petefrench by dilbert.ticketswitch.com with local (Exim 4.71 (FreeBSD)) (envelope-from ) id 1O7PS0-00093c-9M; Thu, 29 Apr 2010 09:50:28 +0100 Date: Thu, 29 Apr 2010 09:50:28 +0100 Message-Id: To: mav@FreeBSD.org In-Reply-To: <4BD896AC.4080509@FreeBSD.org> From: Pete French Cc: freebsd-scsi@freebsd.org, chuzzwassa@gmail.com, scottl@FreeBSD.org, freebsd-stable@freebsd.org Subject: Re: MFC of "Large set of CAM improvements" breaks I/O to Adaptec 29160 SCSI controller X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Apr 2010 09:12:25 -0000 > Thanks. First step successful - I can steadily reproduce problem on > CURRENT. raidtest with 200 I/O streams over gmirror of two disks on same > channel triggers issue in seconds. Any I/O on channel dying after both > disks report "Queue full" error same time. The rest of system works > fine. If I preliminarily manually adjust queue depth of one disk - > everything works fine. I'll investigate it tomorrow. Glad you have managed to dupliate it - the queue depth thing is inetersting, what changes did you make ? I can try them here and see if they improve the situation on either of my two machines. -pete.