From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e3.ny.us.ibm.com (e3.ny.us.ibm.com [32.97.182.143]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e3.ny.us.ibm.com", Issuer "Equifax" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id BA356DDEDF for ; Mon, 9 Mar 2009 21:38:48 +1100 (EST) Received: from d01relay02.pok.ibm.com (d01relay02.pok.ibm.com [9.56.227.234]) by e3.ny.us.ibm.com (8.13.1/8.13.1) with ESMTP id n29AZwTU005524 for ; Mon, 9 Mar 2009 06:35:58 -0400 Received: from d01av04.pok.ibm.com (d01av04.pok.ibm.com [9.56.224.64]) by d01relay02.pok.ibm.com (8.13.8/8.13.8/NCO v9.2) with ESMTP id n29Acgme174064 for ; Mon, 9 Mar 2009 06:38:42 -0400 Received: from d01av04.pok.ibm.com (loopback [127.0.0.1]) by d01av04.pok.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id n29AcgB8020484 for ; Mon, 9 Mar 2009 06:38:42 -0400 Date: Mon, 9 Mar 2009 06:38:20 -0400 From: Josh Boyer To: Felix Radensky Subject: Re: Machine check in 4xx ethernet driver Message-ID: <20090309103820.GA17943@zod.rchland.ibm.com> References: <22408005.post@talk.nabble.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <22408005.post@talk.nabble.com> Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Mon, Mar 09, 2009 at 12:47:02AM -0700, Felix Radensky wrote: > >Hi, > >I'm getting machine check exception when trying to dump >emac registers on 405EX Kilauea board. The kernel is 2.6.29-rc7 >The problem seems not new, I can reproduce it on 2.6.25 Denx kernel I've not looked at what that code path does, but the EMAC regs are in DCR space, not MMIO. Using memcpy_fromio there seems odd. josh