From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail191.messagelabs.com (mail191.messagelabs.com [216.82.242.19]) by kanga.kvack.org (Postfix) with ESMTP id BEA846B004F for ; Wed, 10 Jun 2009 05:41:42 -0400 (EDT) Subject: Re: [patch v3] swap: virtual swap readahead From: Peter Zijlstra In-Reply-To: <20090610085638.GA32511@localhost> References: <20090609190128.GA1785@cmpxchg.org> <20090609193702.GA2017@cmpxchg.org> <20090610050342.GA8867@localhost> <20090610074508.GA1960@cmpxchg.org> <20090610081132.GA27519@localhost> <20090610173249.50e19966.kamezawa.hiroyu@jp.fujitsu.com> <20090610085638.GA32511@localhost> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Wed, 10 Jun 2009 11:42:56 +0200 Message-Id: <1244626976.13761.11593.camel@twins> Mime-Version: 1.0 Sender: owner-linux-mm@kvack.org To: Wu Fengguang Cc: KAMEZAWA Hiroyuki , Johannes Weiner , Andrew Morton , Rik van Riel , Hugh Dickins , Andi Kleen , Minchan Kim , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" List-ID: On Wed, 2009-06-10 at 16:56 +0800, Wu Fengguang wrote: > > Yes it worked! But then I run into page allocation failures: > > [ 340.639803] Xorg: page allocation failure. order:4, mode:0x40d0 > [ 340.645744] Pid: 3258, comm: Xorg Not tainted 2.6.30-rc8-mm1 #303 > [ 340.651839] Call Trace: > [ 340.654289] [] __alloc_pages_nodemask+0x344/0x6c0 > [ 340.660645] [] __slab_alloc_page+0xb9/0x3b0 > [ 340.666472] [] __kmalloc+0x198/0x250 > [ 340.671786] [] ? i915_gem_execbuffer+0x17f/0x11e0 [i915] > [ 340.678746] [] i915_gem_execbuffer+0x17f/0x11e0 [i915] Jesse Barnes had a patch to add a vmalloc fallback to those largish kms allocs. But order-4 allocs failing isn't really strange, but it might indicate this patch fragments stuff sooner, although I've seen these particular failues before. -- 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