From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ed1-f70.google.com (mail-ed1-f70.google.com [209.85.208.70]) by kanga.kvack.org (Postfix) with ESMTP id D284A6B0005 for ; Sat, 20 Oct 2018 22:36:40 -0400 (EDT) Received: by mail-ed1-f70.google.com with SMTP id b34-v6so22615749ede.5 for ; Sat, 20 Oct 2018 19:36:40 -0700 (PDT) Received: from mail-sor-f41.google.com (mail-sor-f41.google.com. [209.85.220.41]) by mx.google.com with SMTPS id b25-v6sor525250ejo.11.2018.10.20.19.36.39 for (Google Transport Security); Sat, 20 Oct 2018 19:36:39 -0700 (PDT) Date: Sun, 21 Oct 2018 02:36:37 +0000 From: Wei Yang Subject: Re: [RFC] put page to pcp->lists[] tail if it is not on the same node Message-ID: <20181021023637.v6d3jjo65hc3nn7t@master> Reply-To: Wei Yang References: <20181019043303.s5axhjfb2v2lzsr3@master> <20181019083818.GQ5819@techsingularity.net> <20181020163318.72oqszgdtqfafycu@master> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181020163318.72oqszgdtqfafycu@master> Sender: owner-linux-mm@kvack.org List-ID: To: Wei Yang Cc: Mel Gorman , willy@infradead.org, mhocko@suse.com, linux-mm@kvack.org, akpm@linux-foundation.org On Sat, Oct 20, 2018 at 04:33:18PM +0000, Wei Yang wrote: >> >>I suspect it would eventually cause a crash or at least weirdness as the >>page zone ids would not match due to different nodes. >> > >If my analysis is correct, there are only two relationship between page >node_id of those pages in pcp and the pcp's node_id, either the same or >not. > >Let me have a try with qemu emulated numa system. :-) > Just run an emulated sytem with 4 numa nodes in qemu, the kernel with this change looks good. But nothing to be happy, just want you be informed. -- Wei Yang Help you, Help me