From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx194.postini.com [74.125.245.194]) by kanga.kvack.org (Postfix) with SMTP id D00046B00ED for ; Mon, 21 May 2012 16:18:41 -0400 (EDT) Date: Mon, 21 May 2012 15:18:38 -0500 (CDT) From: Christoph Lameter Subject: Re: 3.4-rc7 numa_policy slab poison. In-Reply-To: <20120521200118.GA12123@redhat.com> Message-ID: References: <20120517213120.GA12329@redhat.com> <20120518185851.GA5728@redhat.com> <20120521154709.GA8697@redhat.com> <20120521200118.GA12123@redhat.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Dave Jones Cc: Linus Torvalds , Linux Kernel , linux-mm@kvack.org, KOSAKI Motohiro , Stephen Wilson , Mel Gorman , Andrew Morton On Mon, 21 May 2012, Dave Jones wrote: > On Mon, May 21, 2012 at 12:39:19PM -0700, Linus Torvalds wrote: > > > But there's not a lot of recent stuff. The thing that jumps out is Mel > > Gorman's recent commit cc9a6c8776615 ("cpuset: mm: reduce large > > amounts of memory barrier related damage v3"), which has a whole new > > loop with that scary mpol_cond_put() usage. And there's we had > > problems with vma merging.. > > > > Dave, how recent is this problem? Have you already tried older kernels? > > I tried bisecting, but couldn't find a 'good' kernel. > I Went back as far as 3.0, before that I kept running into compile failures. > Newer gcc/binutils really seems to dislike 2.6.x now. Well binary distro kernels are available that allow easy testing. Will try with what I got here. I have reproduced it with 3.4 so far. Its always an mput on a freed memory policy. Slub recovery keeps my system up at least. I just get the errors dumped to dmesg. Is there any way to get the trinity tool to stop when the kernel writes errors to dmesg? That way I could see the parameters passed to mbind? -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org