From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx187.postini.com [74.125.245.187]) by kanga.kvack.org (Postfix) with SMTP id CDC716B0083 for ; Tue, 22 May 2012 11:43:17 -0400 (EDT) Received: by wibhj6 with SMTP id hj6so3097963wib.8 for ; Tue, 22 May 2012 08:43:16 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <20120522115910.GA3353@suse.de> References: <20120517213120.GA12329@redhat.com> <20120518185851.GA5728@redhat.com> <20120521154709.GA8697@redhat.com> <20120521200118.GA12123@redhat.com> <20120522115910.GA3353@suse.de> From: Linus Torvalds Date: Tue, 22 May 2012 08:42:55 -0700 Message-ID: Subject: Re: 3.4-rc7 numa_policy slab poison. Content-Type: text/plain; charset=ISO-8859-1 Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: Dave Jones , Linux Kernel , linux-mm@kvack.org, KOSAKI Motohiro , Stephen Wilson , Christoph Lameter , Andrew Morton On Tue, May 22, 2012 at 4:59 AM, Mel Gorman wrote: > > This bug is really old as it triggers as far back as 2.6.32.58. I don't > know why yet. Would somebody humor me, and try it without the MPOL_F_SHARED games? The whole reference counting in the presense of setting and clearing that bit looks totally crazy. I really cannot see how it could ever work. I realize that it avoids a copy, but I really don't see how the refcounting is supposed to work for it.. Linus -- 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