From owner-freebsd-current@FreeBSD.ORG Thu Oct 25 09:11:59 2007 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4C35D16A418 for ; Thu, 25 Oct 2007 09:11:59 +0000 (UTC) (envelope-from marck@rinet.ru) Received: from woozle.rinet.ru (woozle.rinet.ru [195.54.192.68]) by mx1.freebsd.org (Postfix) with ESMTP id CEC1E13C48A for ; Thu, 25 Oct 2007 09:11:58 +0000 (UTC) (envelope-from marck@rinet.ru) Received: from localhost (localhost [127.0.0.1]) by woozle.rinet.ru (8.14.1/8.14.1) with ESMTP id l9P9BvYB025218; Thu, 25 Oct 2007 13:11:57 +0400 (MSD) (envelope-from marck@rinet.ru) Date: Thu, 25 Oct 2007 13:11:57 +0400 (MSD) From: Dmitry Morozovsky To: Jeremy Chadwick In-Reply-To: <20071025082153.GA47376@eos.sc1.parodius.com> Message-ID: <20071025125652.E31135@woozle.rinet.ru> References: <20071025110225.D31135@woozle.rinet.ru> <20071025082153.GA47376@eos.sc1.parodius.com> X-NCC-RegID: ru.rinet X-OpenPGP-Key-ID: 6B691B03 MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (woozle.rinet.ru [0.0.0.0]); Thu, 25 Oct 2007 13:11:57 +0400 (MSD) Cc: current@freebsd.org Subject: Re: RELENG_7: SATA hotplug does not work X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 25 Oct 2007 09:11:59 -0000 On Thu, 25 Oct 2007, Jeremy Chadwick wrote: JC> However, on my home machine (nForce 4-based), if I attempt to perform a JC> hot-swap by removing the SATA cable then the power cable on the drive, JC> the kernel will either panic and the machine reboot, or the machine will JC> simply power-cycle on its own. JC> JC> I've been told that I should be removing the power cable *first*, but I JC> don't see how the order would matter. JC> JC> Keep in mind that the servers I mention above have a proper SATA JC> hot-swap backplane; supposedly this is needed for hot-swapping, JC> otherwise "odd things" can happen. I presume that the backplane allows JC> signalling provided constantly to the controller (regardless of a disk JC> being removed), while the manual method on my nForce 4 machine actually JC> disconnects the controller -- literally -- from the drive. Well, you may be right (however, I doubt, as IIRC, SATA standard requires hotplug) But - RELENG_6 *detects* changed disks correctly. RELENG_7 does not. This is definitely a regression. Sincerely, D.Marck [DM5020, MCK-RIPE, DM3-RIPN] [ FreeBSD committer: marck@FreeBSD.org ] ------------------------------------------------------------------------ *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru *** ------------------------------------------------------------------------