From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 16 Oct 2002 20:59:08 +0200 From: Henrik =?iso-8859-1?Q?St=F8rner?= Subject: Re: 2.5.42-mm2 hangs system Message-ID: <20021016185908.GA863@hswn.dk> References: <20021013160451.GA25494@hswn.dk> <3DA9CA28.155BA5CB@digeo.com> <20021013223332.GA870@hswn.dk> <20021016183907.B29405@in.ibm.com> <20021016154943.GA13695@hswn.dk> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20021016154943.GA13695@hswn.dk> Sender: owner-linux-mm@kvack.org Return-Path: To: Maneesh Soni Cc: linux-mm@kvack.org, akpm@digeo.com, Dipankar Sarma List-ID: Hi Maneesh, On Wed, Oct 16, 2002 at 05:49:43PM +0200, Henrik Storner wrote: > On Wed, Oct 16, 2002 at 06:39:07PM +0530, Maneesh Soni wrote: > > As the hang looks like a loop in d_lookup can you try > > recreating it *without* dcache_rcu.patch. You can backout this patch > > > > http://www.zipworld.com.au/~akpm/linux/patches/2.5/2.5.42/2.5.42-mm2/broken-out/dcache_rcu.patch > > > I've got some time tonight, so I will try un-doing the patch you > mention and see if that changes anything. well you hit the nail right on the head there. I've just been running the 2.5.42-mm2 kernel except for the dcache_rcu patch for a full hour, and I was unable to reproduce the hangs that I saw with the full -mm2 patch installed. Did two full kernel builds while reading some mail and doing other stuff - no problems what so ever. Just to be sure, I re-applied the dcache_rcu patch, rebuilt the kernel, booted with the kernel containing dcache_rcu patch, and the system died within a few minutes. So it is definitely something in the dcache_rcu patch that does it. -- Henrik Storner -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/