From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg1-x533.google.com (mail-pg1-x533.google.com [IPv6:2607:f8b0:4864:20::533]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 41Pvv86ZmNzDrTn for ; Tue, 10 Jul 2018 18:07:32 +1000 (AEST) Received: by mail-pg1-x533.google.com with SMTP id y5-v6so1843874pgv.1 for ; Tue, 10 Jul 2018 01:07:32 -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 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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