From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 17 Apr 2008 15:55:57 +0900 From: KAMEZAWA Hiroyuki Subject: Re: Warning on memory offline (possible in migration ?) Message-Id: <20080417155557.a08cbde5.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20080416234303.c6003c08.akpm@linux-foundation.org> References: <20080414145806.c921c927.kamezawa.hiroyu@jp.fujitsu.com> <20080416200036.2ea9b5c2.kamezawa.hiroyu@jp.fujitsu.com> <20080416113642.8ffd5684.akpm@linux-foundation.org> <20080417091930.cbac6286.kamezawa.hiroyu@jp.fujitsu.com> <20080417153818.d40ddfd8.kamezawa.hiroyu@jp.fujitsu.com> <20080416234303.c6003c08.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: clameter@sgi.com, linux-mm@kvack.org, npiggin@suse.de, y-goto@jp.fujitsu.com, LKML List-ID: On Wed, 16 Apr 2008 23:43:03 -0700 Andrew Morton wrote: > On Thu, 17 Apr 2008 15:38:18 +0900 KAMEZAWA Hiroyuki wrote: > > > On Thu, 17 Apr 2008 09:19:30 +0900 > > KAMEZAWA Hiroyuki wrote: > > > > I'd expect that you could reproduce this by disabling readahead with > > > > fadvise(POSIX_FADV_RANDOM) and then issuing the above four reads. > > > > > > > Thank you for advice. I'll try. > > > > > (Added lkml to CC:) > > > > What happens: > > When I do memory offline on ia64/NUMA box, __set_page_dirty_buffers() printed > > out WARNINGS because the page under migration is not up-to-date. > > The warning is in __set_page_dirty(). > Sorry, __set_page_dirty() in fs/buffer.c Thanks, -Kame -- 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/ . Don't email: email@kvack.org