From owner-freebsd-scsi@FreeBSD.ORG Thu Apr 29 08:54:18 2010 Return-Path: Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id EE2D5106566B; Thu, 29 Apr 2010 08:54:18 +0000 (UTC) (envelope-from mavbsd@gmail.com) Received: from mail-fx0-f54.google.com (mail-fx0-f54.google.com [209.85.161.54]) by mx1.freebsd.org (Postfix) with ESMTP id 293988FC18; Thu, 29 Apr 2010 08:54:17 +0000 (UTC) Received: by fxm15 with SMTP id 15so904625fxm.13 for ; Thu, 29 Apr 2010 01:54:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:sender:message-id:date:from :user-agent:mime-version:to:cc:subject:references:in-reply-to :x-enigmail-version:content-type:content-transfer-encoding; bh=jYrF4v2Tcxr3sbmfjjfgt9eSrxMzhrFp57DiEBWdN3o=; b=mJnSni5R5fApZbjV/hREj+eLLaq7miX2hR/7TOlbztKswRdJtvUwypguO5wXKGCkpR MzFDxd51+2+dY2iaOF3Cf8BK5wua1ybc+y+74rXESNI5adfD3pxXQKY1m/Er13nu6Rek wa3Wmwg288BrTxjzeJxiGVH8P06YvzwlqTY58= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:x-enigmail-version:content-type :content-transfer-encoding; b=ltlSH62rth7OboJV7spXOmXsxRtcfODs5x2whrIljP55DV/4ZblOK3eio4HYofL+Es XgCjSC+LpN5IZfJWa3QGPeCD2FToH5tGP8TAEf01dbXScnAfoeYx7ILwSxNHK9Unju8T mwnC1FHjgQsk7BZVilYHcAYzZv4Qvdhexkk/k= Received: by 10.102.14.5 with SMTP id 5mr4833907mun.33.1272531251149; Thu, 29 Apr 2010 01:54:11 -0700 (PDT) Received: from mavbook.mavhome.dp.ua (pc.mavhome.dp.ua [212.86.226.226]) by mx.google.com with ESMTPS id t10sm3033669muh.59.2010.04.29.01.54.09 (version=SSLv3 cipher=RC4-MD5); Thu, 29 Apr 2010 01:54:10 -0700 (PDT) Sender: Alexander Motin Message-ID: <4BD9491C.2070303@FreeBSD.org> Date: Thu, 29 Apr 2010 11:53:48 +0300 From: Alexander Motin User-Agent: Thunderbird 2.0.0.24 (X11/20100402) MIME-Version: 1.0 To: Pete French References: In-Reply-To: X-Enigmail-Version: 0.96.0 Content-Type: text/plain; charset=KOI8-R Content-Transfer-Encoding: 7bit Cc: freebsd-scsi@freebsd.org, 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-scsi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Apr 2010 08:54:19 -0000 Pete French wrote: >> 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. camcontrol tags da0 -N 50 -- Alexander Motin