From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg1-f169.google.com ([209.85.215.169]:42161 "EHLO mail-pg1-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752652AbeGJIHa (ORCPT ); Tue, 10 Jul 2018 04:07:30 -0400 Received: by mail-pg1-f169.google.com with SMTP id y4-v6so1788403pgp.9 for ; Tue, 10 Jul 2018 01:07:30 -0700 (PDT) Date: Tue, 10 Jul 2018 18:07:25 +1000 From: Nicholas Piggin To: vrbagal1 Cc: linuxppc-dev , linux-fsdevel@vger.kernel.org, sachinp Subject: Re: [powerpc/powervm]Oops: Kernel access of bad area, sig: 11 [#1] while running stress-ng Message-ID: <20180710180708.6e0cd26b@roar.ozlabs.ibm.com> In-Reply-To: <8595a4f915a7344210a8cc7ad6923a2b@linux.vnet.ibm.com> References: <8595a4f915a7344210a8cc7ad6923a2b@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Tue, 10 Jul 2018 11:58:40 +0530 vrbagal1 wrote: > Hi, > > Observing kernel oops on Power9(ZZ) box, running on PowerVM, while > running stress-ng. > > > Kernel: 4.18.0-rc4 > Machine: Power9 ZZ (PowerVM) > Test: Stress-ng > > Attached is .config file > > Traces: > > [12251.245209] Oops: Kernel access of bad area, sig: 11 [#1] Can you post the lines above this? Otherwise we don't know what address it tried to access (without decoding the instructions and reconstructing it from registers at least, which the XFS devs wouldn't be inclined to do). And I assume there is nothing else relevant to XFS in the dmesg before this? Thanks, Nick