From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753737AbdGSQQU (ORCPT ); Wed, 19 Jul 2017 12:16:20 -0400 Received: from mail-wr0-f179.google.com ([209.85.128.179]:36012 "EHLO mail-wr0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753530AbdGSQQT (ORCPT ); Wed, 19 Jul 2017 12:16:19 -0400 MIME-Version: 1.0 In-Reply-To: <20170719135447.GB2063@ZenIV.linux.org.uk> References: <20170719135447.GB2063@ZenIV.linux.org.uk> From: Naresh Kamboju Date: Wed, 19 Jul 2017 21:46:17 +0530 Message-ID: Subject: Re: Kernel BUG at fs/namei.c:248 To: Al Viro Cc: linux-fsdevel@vger.kernel.org, "linux-kernel@vger.kernel.org" , Kees Cook Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 19 July 2017 at 19:24, Al Viro wrote: > On Wed, Jul 19, 2017 at 03:54:54PM +0530, Naresh Kamboju wrote: >> Linux version: >> Linux version 4.13.0-rc1-00059-g74cbd96 (buildslave@x86-64-07) (gcc >> version 6.2.1 20161016 (Linaro GCC 6.2-2016.11)) #1 SMP PREEMPT Tue >> Jul 18 19:09:37 UTC 2017 >> >> [ 1245.412625] kernel BUG at >> /srv/oe/build/tmp-rpb-glibc/work-shared/hikey/kernel-source/fs/namei.c:248! > > Interesting... Looks like double-put or memory corruptor of some sort. > Nothing obvious jumps out at the first glance; I'll look into that when > I get back to better connectivity tonight. I am able to reproduce this BUG by running zram test cases multiple times in a row. http://people.linaro.org/~naresh.kamboju/zram.tar.gz Ref: LKFT: linux-mainline: Kernel BUG at fs/namei.c:248 https://bugs.linaro.org/show_bug.cgi?id=3140