From owner-freebsd-alpha@FreeBSD.ORG Thu Apr 15 22:43:42 2004 Return-Path: Delivered-To: freebsd-alpha@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0C72B16A4CE; Thu, 15 Apr 2004 22:43:42 -0700 (PDT) Received: from cs.rice.edu (cs.rice.edu [128.42.1.30]) by mx1.FreeBSD.org (Postfix) with ESMTP id D50A943D62; Thu, 15 Apr 2004 22:43:41 -0700 (PDT) (envelope-from alc@cs.rice.edu) Received: from localhost (calypso.cs.rice.edu [128.42.1.127]) by cs.rice.edu (Postfix) with ESMTP id 4B86E4AC44; Fri, 16 Apr 2004 00:43:41 -0500 (CDT) Received: from cs.rice.edu ([128.42.1.30]) by localhost (calypso.cs.rice.edu [128.42.1.127]) (amavisd-new, port 10024) with LMTP id 19296-01-24; Fri, 16 Apr 2004 00:43:41 -0500 (CDT) Received: by cs.rice.edu (Postfix, from userid 19572) id F04304AC42; Fri, 16 Apr 2004 00:43:40 -0500 (CDT) Date: Fri, 16 Apr 2004 00:43:40 -0500 From: Alan Cox To: Kris Kennaway Message-ID: <20040416054340.GZ238@cs.rice.edu> References: <20040411093343.GA89809@xor.obsecurity.org> <200404132236.20792.jhb@FreeBSD.org> <16509.42895.49213.222503@grasshopper.cs.duke.edu> <20040416045453.GA78366@xor.obsecurity.org> <407F68BA.6000405@imimic.com> <20040416053930.GA78940@xor.obsecurity.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040416053930.GA78940@xor.obsecurity.org> User-Agent: Mutt/1.3.28i X-Virus-Scanned: by amavis-20030616-p7 at cs.rice.edu cc: alc@FreeBSD.org cc: "Alan L. Cox" cc: alpha@FreeBSD.org cc: Andrew Gallatin Subject: Re: Another alpha panic X-BeenThere: freebsd-alpha@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the Alpha List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Apr 2004 05:43:42 -0000 On Thu, Apr 15, 2004 at 10:39:30PM -0700, Kris Kennaway wrote: > > Line 2740 seems to be: > > td->td_pcb->pcb_hw.apcb_ptbr = > ALPHA_K0SEG_TO_PHYS((vm_offset_t) pmap->pm_lev1) >> PAGE_SHIFT; > Can you provide a disassembly of pmap_activate()? The point being to determine which of the above dereferences is faulting. Alan