From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from terminus.zytor.com ([198.137.202.10] helo=mail.zytor.com) by bombadil.infradead.org with esmtps (Exim 4.72 #1 (Red Hat Linux)) id 1OegQx-0008W3-QJ for kexec@lists.infradead.org; Fri, 30 Jul 2010 03:38:56 +0000 Message-ID: <4C524934.5070806@zytor.com> Date: Thu, 29 Jul 2010 20:38:28 -0700 From: "H. Peter Anvin" MIME-Version: 1.0 Subject: Re: In place kexec References: <4C50A7AD.8040902@zytor.com> <20100729134343.GA31490@shamino.rdu.redhat.com> <4C519853.2040206@zytor.com> <20100729150640.GF31490@shamino.rdu.redhat.com> <4C51BFA5.60507@zytor.com> <4C51C878.2090102@zytor.com> <20100729191654.GB28704@redhat.com> <20100729125535.85dfd7da.randy.dunlap@oracle.com> In-Reply-To: <20100729125535.85dfd7da.randy.dunlap@oracle.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: kexec-bounces@lists.infradead.org Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Randy Dunlap Cc: Neil Horman , "kexec@lists.infradead.org" , Simon Horman , "Eric W. Biederman" , linux-driver@qlogic.com, Vivek Goyal , Andrew Vasquez On 07/29/2010 12:55 PM, Randy Dunlap wrote: >> >> And device_shutdown calls every drivers .shutdown method. >> >> Things like this are always a driver problem. > > so is there a default .shutdown method for drivers that do not specify one? > > like the qla2xxx driver does not. > If it doesn't, even if bus mastering gets shut off at the core level, there is a risk that is clobbers data when it turns it back on if the initialization sequence is problematic. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec