From owner-freebsd-arm@FreeBSD.ORG Fri Mar 13 18:21:19 2015 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 4E5B4CAC for ; Fri, 13 Mar 2015 18:21:19 +0000 (UTC) Received: from relay.mailchannels.net (si-002-i157.relay.mailchannels.net [108.178.49.169]) by mx1.freebsd.org (Postfix) with ESMTP id 82E31FA7 for ; Fri, 13 Mar 2015 18:21:17 +0000 (UTC) X-Sender-Id: duocircle|x-authuser|hippie Received: from smtp7.ore.mailhop.org (ip-10-220-9-73.us-west-2.compute.internal [10.220.9.73]) by relay.mailchannels.net (Postfix) with ESMTPA id 099A212022B; Fri, 13 Mar 2015 18:21:10 +0000 (UTC) X-Sender-Id: duocircle|x-authuser|hippie Received: from smtp7.ore.mailhop.org (smtp7.ore.mailhop.org [10.45.8.167]) (using TLSv1 with cipher DHE-RSA-AES256-SHA) by 0.0.0.0:2500 (trex/5.4.8); Fri, 13 Mar 2015 18:21:10 +0000 X-MC-Relay: Neutral X-MailChannels-SenderId: duocircle|x-authuser|hippie X-MailChannels-Auth-Id: duocircle X-MC-Loop-Signature: 1426270870125:978847187 X-MC-Ingress-Time: 1426270870125 Received: from c-73-34-117-227.hsd1.co.comcast.net ([73.34.117.227] helo=ilsoft.org) by smtp7.ore.mailhop.org with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.82) (envelope-from ) id 1YWUCq-0004W9-6r; Fri, 13 Mar 2015 18:21:08 +0000 Received: from revolution.hippie.lan (revolution.hippie.lan [172.22.42.240]) by ilsoft.org (8.14.9/8.14.9) with ESMTP id t2DIL2nX016803; Fri, 13 Mar 2015 12:21:02 -0600 (MDT) (envelope-from ian@freebsd.org) X-Mail-Handler: DuoCircle Outbound SMTP X-Originating-IP: 73.34.117.227 X-Report-Abuse-To: abuse@duocircle.com (see https://support.duocircle.com/support/solutions/articles/5000540958-duocircle-standard-smtp-abuse-information for abuse reporting information) X-MHO-User: U2FsdGVkX1+/i8dzel+styb885LQWSKJ Message-ID: <1426270862.19693.9.camel@freebsd.org> Subject: Re: crash on writing usbstick From: Ian Lepore To: Brett Wynkoop Date: Fri, 13 Mar 2015 12:21:02 -0600 In-Reply-To: <20150312233228.2d8d4bdb@ivory.wynn.com> References: <20150301041855.5352663e@ivory.wynn.com> <20150301144653.63b38cdf@ivory.wynn.com> <20150301184456.7b5e6487@ivory.wynn.com> <1DC8221F-64EA-418C-8CE5-5FFA4F3DBC64@bsdimp.com> <20150301203244.55578413@ivory.wynn.com> <20150312233228.2d8d4bdb@ivory.wynn.com> Content-Type: text/plain; charset="us-ascii" X-Mailer: Evolution 3.12.10 FreeBSD GNOME Team Port Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-AuthUser: hippie Cc: freebsd-arm@freebsd.org X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Mar 2015 18:21:19 -0000 On Thu, 2015-03-12 at 23:32 -0400, Brett Wynkoop wrote: > Greeting- > > I have done two copies of ports to my USB stick, now setup as a zfs > pool with compression on and atime off, with no crashes. > > I could never do 2 copies in a row trying to write to UFS. I think > this would point to some issue in the UFS code. Might it be time to > pass the previous crash info on to Kirk as the UFS expert? It's kind of hard for me to get past the fact that nobody else can reproduce these problems. In fact, I spent a whole day doing my best to exactly reproduce your test conditions, and couldn't get any kind of problem to happen at all. -- Ian