From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id 6D545DDE1B for ; Fri, 28 Sep 2007 04:44:37 +1000 (EST) In-Reply-To: <20070927183855.GA18226@loki.buserror.net> References: <20070927183855.GA18226@loki.buserror.net> Mime-Version: 1.0 (Apple Message framework v752.2) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <7EEDB996-F029-47F6-B641-2881192694BF@kernel.crashing.org> From: Kumar Gala Subject: Re: [PATCH v4] Make instruction dumping work in real mode. Date: Thu, 27 Sep 2007 13:44:33 -0500 To: Scott Wood Cc: linuxppc-dev@ozlabs.org, paulus@samba.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Sep 27, 2007, at 1:38 PM, Scott Wood wrote: > On non-book-E-or-4xx, exceptions execute in real mode. If a fault > happens > that leads to a register dump, the kernel currently prints XXXXXXXX > because > it doesn't realize that PC is a physical address. > > This patch checks the state of the IMMU, and if necessary converts > PC into a > virtual address. > > Signed-off-by: Scott Wood Acked-by: Kumar Gala - k