From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Chinner Subject: Re: inode_permission NULL pointer dereference in 3.13-rc1 Date: Thu, 28 Nov 2013 08:51:40 +1100 Message-ID: <20131127215140.GH10988@dastard> References: <20131124140413.GA19271@infradead.org> <20131124152758.GL10323@ZenIV.linux.org.uk> <20131125160648.GA4933@infradead.org> <20131126131134.GM10323@ZenIV.linux.org.uk> <20131126141253.GA28062@infradead.org> <20131127064351.GN10323@ZenIV.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Christoph Hellwig , linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com To: Al Viro Return-path: Received: from ipmail06.adl6.internode.on.net ([150.101.137.145]:13575 "EHLO ipmail06.adl6.internode.on.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757890Ab3K0Vvq (ORCPT ); Wed, 27 Nov 2013 16:51:46 -0500 Content-Disposition: inline In-Reply-To: <20131127064351.GN10323@ZenIV.linux.org.uk> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Wed, Nov 27, 2013 at 06:43:51AM +0000, Al Viro wrote: > On Tue, Nov 26, 2013 at 06:12:53AM -0800, Christoph Hellwig wrote: > > On Tue, Nov 26, 2013 at 01:11:34PM +0000, Al Viro wrote: > > > .config, please - all I'm seeing on mine is a bloody awful leak somewhere > > > in VM that I'd been hunting for last week, so the damn thing gets OOMed > > > halfway through xfstests run ;-/ > > > # > > # Automatically generated file; DO NOT EDIT. > > # Linux/x86 3.12.0-hubcap2 Kernel Configuration > [snip] > > Could you post the output of your xfstests run? FWIW, with your .config > I'm seeing the same leak (shut down by turning spinlock debugging off, > it's split page table locks that end up leaking when they are separately > allocated) *and* xfs/253 seems to be sitting there indefinitely once > we get to it - about 100% system time, no blocked processes, xfs_db running > all the time for hours. No oopsen on halt with that sucker skipped *or* > interrupted halfway through. IOWs, you've got a version of xfs_db that has the infinite loop bug that the xfs/253 is trying to tickle: # This test was created to verify fixes for problems where metadump # would never complete due to an inability to find a suitable # obfuscated name to use. Upgrade your xfsprogs package to 3.1.11 and the problem should go away. Cheers, Dave. -- Dave Chinner david@fromorbit.com