All of lore.kernel.org
 help / color / mirror / Atom feed
From: Nishanth Aravamudan <nacc@us.ibm.com>
To: Christoph Lameter <clameter@sgi.com>
Cc: Andi Kleen <ak@suse.de>,
	Lee Schermerhorn <lee.schermerhorn@hp.com>,
	linux-mm@kvack.org, pj@sgi.com, kxr@sgi.com,
	Mel Gorman <mel@skynet.ie>,
	akpm@linux-foundation.org,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	apw@shadowen.org
Subject: Re: [PATCH 00/14] NUMA: Memoryless node support V4
Date: Tue, 31 Jul 2007 16:18:31 -0700	[thread overview]
Message-ID: <20070731231831.GC31324@us.ibm.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0707301535580.22570@schroedinger.engr.sgi.com>

On 30.07.2007 [15:36:19 -0700], Christoph Lameter wrote:
> On Tue, 31 Jul 2007, Andi Kleen wrote:
> 
> > 
> > > Hmmm... yes trouble with NUMAQ is that the nodes only have HIGHMEM
> > > but no NORMAL memory. The memory is not available to the slab
> > > allocator (needs ZONE_NORMAL memory) and we cannot fall back
> > > anymore. We may need something like N_SLAB that defines the
> > > allowed nodes for the slab allocators. Sigh.
> > 
> > Or just disable 32bit NUMA. The arch/i386 numa code is beyond ugly
> > anyways and I don't think it ever worked particularly well.
> 
> So we would no longer support NUMAQ? Is that possible?

Seems a bit excessive in the context of these patches. The kernel worked
before this stack and doesn't with it. Then again, I guess NUMAQ only
worked because it relied on a fallback that shouldn't have happened?

I'm not sure what the best solution is -- maybe Andy has some insight?

Thanks,
Nish

-- 
Nishanth Aravamudan <nacc@us.ibm.com>
IBM Linux Technology Center

--
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: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

      reply	other threads:[~2007-07-31 23:18 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-07-27 19:43 [PATCH 00/14] NUMA: Memoryless node support V4 Lee Schermerhorn
2007-07-27 19:43 ` [PATCH 01/14] NUMA: Generic management of nodemasks for various purposes Lee Schermerhorn
2007-07-30 21:38   ` [PATCH/RFC] 2.6.23-rc1-mm1: MPOL_PREFERRED fixups for preferred_node < 0 Lee Schermerhorn
2007-07-30 22:00     ` Lee Schermerhorn
2007-07-31 15:32       ` Mel Gorman
2007-07-31 15:58         ` Lee Schermerhorn
2007-07-31 21:05     ` [PATCH/RFC] 2.6.23-rc1-mm1: MPOL_PREFERRED fixups for preferred_node < 0 - v2 Lee Schermerhorn
2007-08-01  2:22   ` [PATCH 01/14] NUMA: Generic management of nodemasks for various purposes Andrew Morton
2007-08-01  2:52     ` Christoph Lameter
2007-08-01  3:05       ` Andrew Morton
2007-08-01  3:14         ` Christoph Lameter
2007-08-01  3:32           ` Andrew Morton
2007-08-01  3:37             ` Christoph Lameter
     [not found]             ` <Pine.LNX.4.64.0707312151400.2894@schroedinger.engr.sgi.com>
2007-08-01  5:07               ` Andrew Morton
2007-08-01  5:11                 ` Andrew Morton
2007-08-01  5:22                 ` Christoph Lameter
2007-08-01 10:24                   ` Mel Gorman
2007-08-02 16:23                   ` Mel Gorman
2007-08-02 20:00                     ` Christoph Lameter
2007-08-01  5:36             ` Paul Mundt
2007-08-01  9:19             ` Andi Kleen
2007-08-01 14:03             ` Lee Schermerhorn
2007-08-01 17:41               ` Christoph Lameter
2007-08-01 17:54                 ` Lee Schermerhorn
2007-08-02 20:05                 ` [PATCH/RFC/WIP] cpuset-independent interleave policy Lee Schermerhorn
2007-08-02 20:34                   ` Christoph Lameter
2007-08-02 21:04                     ` Lee Schermerhorn
2007-08-03  0:31                       ` Christoph Lameter
2007-08-02 20:19                 ` Audit of "all uses of node_online()" Lee Schermerhorn
2007-08-02 20:26                   ` Christoph Lameter
2007-08-08 22:19                     ` Lee Schermerhorn
2007-08-08 23:40                       ` Christoph Lameter
2007-08-16 14:17                         ` [PATCH/RFC] memoryless nodes - fixup uses of node_online_map in generic code Lee Schermerhorn
2007-08-16 18:33                           ` Christoph Lameter
2007-08-16 19:15                             ` Lee Schermerhorn
2007-08-16 21:10                         ` Lee Schermerhorn
2007-08-16 21:13                           ` Christoph Lameter
2007-08-24 16:09                         ` [PATCH] 2.6.23-rc3-mm1 - Move setup of N_CPU node state mask Lee Schermerhorn
2007-09-06 13:56                           ` Mel Gorman
2007-08-02 20:33                   ` Audit of "all uses of node_online()" Andrew Morton
2007-08-02 20:45                     ` Lee Schermerhorn
2007-08-01 15:58           ` [PATCH 01/14] NUMA: Generic management of nodemasks for various purposes Nishanth Aravamudan
2007-08-01 16:09             ` Nishanth Aravamudan
2007-08-01 17:47             ` Christoph Lameter
2007-08-01 15:25         ` Nishanth Aravamudan
2007-07-27 19:43 ` [PATCH 02/14] Memoryless nodes: introduce mask of nodes with memory Lee Schermerhorn
2007-07-27 19:43 ` [PATCH 03/14] Memoryless Nodes: Fix interleave behavior Lee Schermerhorn
2007-07-27 19:43 ` [PATCH 04/14] OOM: use the N_MEMORY map instead of constructing one on the fly Lee Schermerhorn
2007-07-27 19:43 ` [PATCH 05/14] Memoryless Nodes: No need for kswapd Lee Schermerhorn
2007-07-27 19:43 ` [PATCH 06/14] Memoryless Node: Slab support Lee Schermerhorn
2007-07-27 19:44 ` [PATCH 07/14] Memoryless nodes: SLUB support Lee Schermerhorn
2007-07-27 19:44 ` [PATCH 08/14] Uncached allocator: Handle memoryless nodes Lee Schermerhorn
2007-07-27 19:44 ` [PATCH 09/14] Memoryless node: Allow profiling data to fall back to other nodes Lee Schermerhorn
2007-07-27 19:44 ` [PATCH 10/14] Memoryless nodes: Update memory policy and page migration Lee Schermerhorn
2007-07-27 19:44 ` [PATCH 11/14] Add N_CPU node state Lee Schermerhorn
2007-07-27 19:44 ` [PATCH 12/14] Memoryless nodes: Fix GFP_THISNODE behavior Lee Schermerhorn
2007-07-27 19:44 ` [PATCH 13/14] Memoryless Nodes: use "node_memory_map" for cpusets Lee Schermerhorn
2007-07-27 19:44 ` [PATCH 14/14] Memoryless nodes: drop one memoryless node boot warning Lee Schermerhorn
2007-07-27 20:59 ` [PATCH 00/14] NUMA: Memoryless node support V4 Nishanth Aravamudan
2007-07-30 13:48   ` Lee Schermerhorn
2007-07-29 12:35 ` Paul Jackson
2007-07-30 16:07   ` Lee Schermerhorn
2007-07-30 18:56     ` Paul Jackson
2007-07-30 21:19 ` Nishanth Aravamudan
2007-07-30 22:06   ` Christoph Lameter
2007-07-30 22:35     ` Andi Kleen
2007-07-30 22:36       ` Christoph Lameter
2007-07-31 23:18         ` Nishanth Aravamudan [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20070731231831.GC31324@us.ibm.com \
    --to=nacc@us.ibm.com \
    --cc=ak@suse.de \
    --cc=akpm@linux-foundation.org \
    --cc=apw@shadowen.org \
    --cc=clameter@sgi.com \
    --cc=kamezawa.hiroyu@jp.fujitsu.com \
    --cc=kxr@sgi.com \
    --cc=lee.schermerhorn@hp.com \
    --cc=linux-mm@kvack.org \
    --cc=mel@skynet.ie \
    --cc=pj@sgi.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.