From owner-freebsd-arch@FreeBSD.ORG Fri Apr 9 09:35:05 2010 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2266A106574A for ; Fri, 9 Apr 2010 09:35:05 +0000 (UTC) (envelope-from avg@freebsd.org) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id 543338FC3C for ; Fri, 9 Apr 2010 09:35:04 +0000 (UTC) Received: from porto.topspin.kiev.ua (porto-e.starpoint.kiev.ua [212.40.38.100]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id MAA15081; Fri, 09 Apr 2010 12:35:00 +0300 (EEST) (envelope-from avg@freebsd.org) Received: from localhost.topspin.kiev.ua ([127.0.0.1]) by porto.topspin.kiev.ua with esmtp (Exim 4.34 (FreeBSD)) id 1O0Ac8-0004lq-IN; Fri, 09 Apr 2010 12:35:00 +0300 Message-ID: <4BBEF4C3.3090902@freebsd.org> Date: Fri, 09 Apr 2010 12:34:59 +0300 From: Andriy Gapon User-Agent: Thunderbird 2.0.0.24 (X11/20100321) MIME-Version: 1.0 To: Hans Petter Selasky References: <4BBEE2DD.3090409@freebsd.org> <201004091125.31395.hselasky@c2i.net> In-Reply-To: <201004091125.31395.hselasky@c2i.net> X-Enigmail-Version: 0.96.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: freebsd-arch@freebsd.org Subject: Re: (in)appropriate uses for MAXBSIZE X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Apr 2010 09:35:05 -0000 on 09/04/2010 12:25 Hans Petter Selasky said the following: > On Friday 09 April 2010 10:18:37 Andriy Gapon wrote: >> As you know MAXBSIZE is currently defined to 64K (seems to a popular value >> for constants). There is the following comment for this parameter and its >> value: >> > >> Feedback welcome. >> Thanks! >> > > Hi, > > Some hardware will break if you do more than 64K at a time. Especially USB > memory sticks. I know, but I am not sure what your point is. The drivers should use appropriate limits for their hardware. MAXBSIZE is not related to hardware. -- Andriy Gapon