From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755926Ab0FCO4q (ORCPT ); Thu, 3 Jun 2010 10:56:46 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:56832 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754052Ab0FCO4o (ORCPT ); Thu, 3 Jun 2010 10:56:44 -0400 Date: Thu, 3 Jun 2010 07:51:35 -0700 (PDT) From: Linus Torvalds To: Stephen Rothwell cc: Rusty Russell , linux-next@vger.kernel.org, LKML Subject: Re: linux-next: boot failure with next-20100603 In-Reply-To: <20100603174251.226da45d.sfr@canb.auug.org.au> Message-ID: References: <20100603174251.226da45d.sfr@canb.auug.org.au> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 3 Jun 2010, Stephen Rothwell wrote: > > Unable to handle kernel paging request for data at address 0x00330000 > Faulting instruction address: 0xc0000000000a2f50 > Oops: Kernel access of bad area, sig: 11 [#1] > NIP [c0000000000a2f50] .load_module+0x990/0x1458 > LR [c0000000000a2f18] .load_module+0x958/0x1458 > Call Trace: > [c00000000228fc20] [c0000000000a2f18] .load_module+0x958/0x1458 (unreliable) > [c00000000228fd90] [c0000000000a3a78] .SyS_init_module+0x60/0x244 > [c00000000228fe30] [c00000000000852c] syscall_exit+0x0/0x40 > Instruction dump: > 7c7a1b78 7fa30040 41dd09cc 39230210 38030220 f9230218 f8030228 f9230210 > f8030220 e9230240 38000001 e96d0040 <7c09592e> e80d01b0 f8030230 38800004 > ---[ end trace 85cf1caaf6abfc45 ]--- > udevd-work[2749]: '/sbin/modprobe -b of:NlheaTCIBM,lhea' unexpected exit with status 0x000b > > This was followed by several other similaar OOPSes also in load_module. > > I assume that this may have something to do with the module loading > fix/cleanup that is in progress ... That's a fairly safe assumption. I can't read PPC oopses in my sleep the way I can do x86, and in particular, I can't pinpoint that to the source code by just decoding the instructions and matching them against what I have. Do you have that binary, and can you do a 'gdb vmlinux' on it, and then have gdb tell you where in load_module "load_module+0x990" and "load_module+0x958" are? Linus