From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: sysfs crashes while recursively checking file permissions Date: Fri, 16 Nov 2012 05:17:28 -0800 Message-ID: <20121116131728.GA30613@kroah.com> References: <50937B34.6050502@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail.kernel.org ([198.145.19.201]:46263 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751876Ab2KPNQi (ORCPT ); Fri, 16 Nov 2012 08:16:38 -0500 Content-Disposition: inline In-Reply-To: <50937B34.6050502@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org List-Id: linux-arm-msm@vger.kernel.org To: Chintan Pandya Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org On Fri, Nov 02, 2012 at 01:20:12PM +0530, Chintan Pandya wrote: > Hi, > > I am running one test on my ARM system which checks the sysfs file > system's whole directory recursively and checks its file permission. > While I perform this test, I face random (as in varies the nature of > crash sometimes) crashes like one mentioned below. > > > <1>[ 67.442660] Unable to handle kernel paging request at virtual > address efd3d794 > > <1>[ 67.448840] pgd = da364000 > > <1>[ 67.451529] [efd3d794] *pgd=00000000 > > <0>[ 67.455092] Internal error: Oops: 5 [#1] PREEMPT SMP ARM > > <4>[ 67.460385] Modules linked in: > > <4>[ 67.463424] CPU: 1 Not tainted > (3.4.0-perf-g45c04fe-00006-g8a5c5e2 #27) Can you try a newer kernel version? Like 3.7-rc5? 3.6.6? thanks, greg k-h From mboxrd@z Thu Jan 1 00:00:00 1970 From: gregkh@linuxfoundation.org (Greg KH) Date: Fri, 16 Nov 2012 05:17:28 -0800 Subject: sysfs crashes while recursively checking file permissions In-Reply-To: <50937B34.6050502@codeaurora.org> References: <50937B34.6050502@codeaurora.org> Message-ID: <20121116131728.GA30613@kroah.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, Nov 02, 2012 at 01:20:12PM +0530, Chintan Pandya wrote: > Hi, > > I am running one test on my ARM system which checks the sysfs file > system's whole directory recursively and checks its file permission. > While I perform this test, I face random (as in varies the nature of > crash sometimes) crashes like one mentioned below. > > > <1>[ 67.442660] Unable to handle kernel paging request at virtual > address efd3d794 > > <1>[ 67.448840] pgd = da364000 > > <1>[ 67.451529] [efd3d794] *pgd=00000000 > > <0>[ 67.455092] Internal error: Oops: 5 [#1] PREEMPT SMP ARM > > <4>[ 67.460385] Modules linked in: > > <4>[ 67.463424] CPU: 1 Not tainted > (3.4.0-perf-g45c04fe-00006-g8a5c5e2 #27) Can you try a newer kernel version? Like 3.7-rc5? 3.6.6? thanks, greg k-h