From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <48A9CBB3.6030700@linux-foundation.org> Date: Mon, 18 Aug 2008 14:21:23 -0500 From: Christoph Lameter MIME-Version: 1.0 Subject: Re: [BUG] __GFP_THISNODE is not always honored References: <1218837685.12953.11.camel@localhost.localdomain> In-Reply-To: <1218837685.12953.11.camel@localhost.localdomain> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Adam Litke Cc: linux-mm , linux-kernel , Andrew Morton , nacc , mel@csn.ul.ie, apw , agl List-ID: Adam Litke wrote: > > So far my debugging has led me to get_page_from_freelist() inside the > for_each_zone_zonelist() loop. When buffered_rmqueue() returns a page I > compare the value of page_to_nid(page), zone->node and the node that the > hugetlb code requested with __GFP_THISNODE. These all match -- except when the > problem triggers. In that case, zone->node matches the node we asked for but > page_to_nid() does not. Uhhh.. A page that was just taken off the freelist? So we may have freed or coalesced a page to the wrong zone? Looks like there is something more fundamental that broke here. -- 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