From owner-freebsd-stable@FreeBSD.ORG Mon Oct 26 21:28:07 2009 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 8A0DB1065676 for ; Mon, 26 Oct 2009 21:28:07 +0000 (UTC) (envelope-from bf1783@googlemail.com) Received: from mail-ew0-f218.google.com (mail-ew0-f218.google.com [209.85.219.218]) by mx1.freebsd.org (Postfix) with ESMTP id 1F7838FC16 for ; Mon, 26 Oct 2009 21:28:06 +0000 (UTC) Received: by ewy18 with SMTP id 18so10916793ewy.43 for ; Mon, 26 Oct 2009 14:28:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=tiNQEKcE2A3WpN6YI9hKTZbnr4IRWDHYTg56zJkFfu0=; b=u9qVSG6X1g2woffT2WScbPlRE3JJ3+pocC/48zjfDFJXrRabC9Ssj0Ms6IPpmAZwEI y2nh4XGeD3cj4S/QlFLCFCMhVUhd0EpYLlT3Btl+f8XmsDTpQ/+fMCHB/jcUtNPPR9Vb 7P/CeaRQqfh/2ru13mzHNsKwXaWmF3DfaDGhI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=kPrD6IoHbPK3CcjMX7SVXA383W7TA5gRC/aBMAFFTh5jduaS/tOPR41Y9CusMeRa1w 2T8DZhDoRUVfFDLOw9KNHw0UboVbMg+npPw7DrpsV7dGLDqHVV+DzI92f95dPofaASDE qLuZEOQSQKpKjxnTj57nK/6PaOcLLpheuxVE4= MIME-Version: 1.0 Received: by 10.216.88.71 with SMTP id z49mr1780466wee.90.1256592485247; Mon, 26 Oct 2009 14:28:05 -0700 (PDT) In-Reply-To: <20091026210445.GA66088@duncan.reilly.home> References: <20091026210445.GA66088@duncan.reilly.home> Date: Mon, 26 Oct 2009 21:28:05 +0000 Message-ID: From: "b. f." To: Andrew Reilly Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-stable@freebsd.org Subject: Re: Some questions about da0 on USB2 (recent bad behaviour) 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: Mon, 26 Oct 2009 21:28:07 -0000 On 10/26/09, Andrew Reilly wrote: > On Sat, Oct 24, 2009 at 07:07:00PM +0000, b. f. wrote: ... > > I haven't run -current for, probably, ten years, and the > occasional messages about lock-order-reversals worry me a bit, > but don't seem to be doing any harm. Should I report them? In > a PR? > Some of them are known, and are either harmless or a false positive. If you get an LOR, you can check to see if a similar LOR has already been noted on Bjoern Zeeb's page: http://sources.zabbadoz.net/freebsd/lor.html If it hasn't, send him an email with the LOR, and the circumstances under which it arose, as described on that page. Don't forget that there is a lot of debugging code enabled by default under -CURRENT (which at this point is still pretty close to 8-STABLE, and will be until after the release of 8.0, so it ought to be fairly stable). If you feel confident about the safety of using -CURRENT, and want to get the best performance, disable the debugging code as described in /usr/src/UPDATING. > Please count this message as a vote for MFC'ing those cam and > usb changes to 8-STABLE. > I'm guessing that these changes will make it into 8.0, or at least 8-STABLE, fairly soon; but mav@, thompsa@, and re@ will know more. b.