From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with ESMTP id EB20A6B004A for ; Mon, 13 Jun 2011 10:03:30 -0400 (EDT) Received: from hpaq3.eem.corp.google.com (hpaq3.eem.corp.google.com [172.25.149.3]) by smtp-out.google.com with ESMTP id p5DE3RFl018889 for ; Mon, 13 Jun 2011 07:03:27 -0700 Received: from pzk2 (pzk2.prod.google.com [10.243.19.130]) by hpaq3.eem.corp.google.com with ESMTP id p5DE3MeS004888 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Mon, 13 Jun 2011 07:03:26 -0700 Received: by pzk2 with SMTP id 2so2574407pzk.23 for ; Mon, 13 Jun 2011 07:03:22 -0700 (PDT) Date: Mon, 13 Jun 2011 07:03:03 -0700 (PDT) From: Hugh Dickins Subject: Re: [PATCH] [BUGFIX] update mm->owner even if no next owner. In-Reply-To: <20110613105410.e06720f1.kamezawa.hiroyu@jp.fujitsu.com> Message-ID: References: <20110610091355.2ce38798.kamezawa.hiroyu@jp.fujitsu.com> <20110610113311.409bb423.kamezawa.hiroyu@jp.fujitsu.com> <20110610121949.622e4629.kamezawa.hiroyu@jp.fujitsu.com> <20110610125551.385ea7ed.kamezawa.hiroyu@jp.fujitsu.com> <20110610133021.2eaaf0da.kamezawa.hiroyu@jp.fujitsu.com> <20110610235442.GA21413@cmpxchg.org> <20110611175136.GA31154@cmpxchg.org> <20110613105410.e06720f1.kamezawa.hiroyu@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: KAMEZAWA Hiroyuki Cc: Johannes Weiner , Andrea Arcangeli , Ying Han , Dave Jones , Linux Kernel , "linux-mm@kvack.org" , Oleg Nesterov , Andrew Morton On Mon, 13 Jun 2011, KAMEZAWA Hiroyuki wrote: > On Sun, 12 Jun 2011 18:41:58 -0700 (PDT) > Hugh Dickins wrote: > > > > The version I've signed off and am actually testing is below; > > but I've not had enough time to spare on the machine which reproduced > > it before, and another I thought I'd delegate it to last night, > > failed to reproduce without the patch. Try again tonight. > > > > Thought I'd better respond despite inadequate testing, given the flaw > > in the posted patch. Hope the one below is flawless. > > > > Thank you, I'll do test, too. I confirm it fixes the bug: ran ten hours last night, when a couple of tries just before without the patch each failed in ten minutes. (But the load was not testing whether it keeps ownership when it should, I hope you know a quick check on that: our earlier fixes should fail that.) Hugh -- 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