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 SMTP id 128156B004F for ; Wed, 10 Jun 2009 07:31:38 -0400 (EDT) Date: Wed, 10 Jun 2009 19:32:14 +0800 From: Wu Fengguang Subject: Re: [patch v3] swap: virtual swap readahead Message-ID: <20090610113214.GA5657@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> <1244626976.13761.11593.camel@twins> <20090610095950.GA514@localhost> <1244628314.13761.11617.camel@twins> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1244628314.13761.11617.camel@twins> Sender: owner-linux-mm@kvack.org To: Peter Zijlstra 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" , "Barnes, Jesse" List-ID: On Wed, Jun 10, 2009 at 06:05:14PM +0800, Peter Zijlstra wrote: > On Wed, 2009-06-10 at 17:59 +0800, Wu Fengguang wrote: > > On Wed, Jun 10, 2009 at 05:42:56PM +0800, Peter Zijlstra wrote: > > > 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. > > > > Thanks for the tip. Where is it? I'd like to try it out :) > > commit 8e7d2b2c6ecd3c21a54b877eae3d5be48292e6b5 > Author: Jesse Barnes > Date: Fri May 8 16:13:25 2009 -0700 > > drm/i915: allocate large pointer arrays with vmalloc Thanks! It is already in the -mm tree, but it missed on conversion :) I'll retry with this patch tomorrow. Thanks, Fengguang --- diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 39f5c65..7132dbe 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3230,8 +3230,8 @@ i915_gem_execbuffer(struct drm_device *dev, void *data, } if (args->num_cliprects != 0) { - cliprects = drm_calloc(args->num_cliprects, sizeof(*cliprects), - DRM_MEM_DRIVER); + cliprects = drm_calloc_large(args->num_cliprects, + sizeof(*cliprects)); if (cliprects == NULL) goto pre_mutex_err; @@ -3474,8 +3474,7 @@ err: pre_mutex_err: drm_free_large(object_list); drm_free_large(exec_list); - drm_free(cliprects, sizeof(*cliprects) * args->num_cliprects, - DRM_MEM_DRIVER); + drm_free_large(cliprects); return ret; } -- 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