From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
"balbir@linux.vnet.ibm.com" <balbir@linux.vnet.ibm.com>,
"yamamoto@valinux.co.jp" <yamamoto@valinux.co.jp>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"containers@lists.osdl.org" <containers@lists.osdl.org>,
LKML <linux-kernel@vger.kernel.org>,
Christoph Lameter <clameter@sgi.com>
Subject: Re: [PATCH][for -mm] per-zone and reclaim enhancements for memory controller take 3 [3/10] per-zone active inactive counter
Date: Thu, 29 Nov 2007 10:37:02 +0900 [thread overview]
Message-ID: <20071129103702.cbc5cf73.kamezawa.hiroyu@jp.fujitsu.com> (raw)
In-Reply-To: <1196284799.5318.34.camel@localhost>
On Wed, 28 Nov 2007 16:19:59 -0500
Lee Schermerhorn <Lee.Schermerhorn@hp.com> wrote:
> As soon as this loop hits the first non-existent node on my platform, I
> get a NULL pointer deref down in __alloc_pages. Stack trace below.
>
> Perhaps N_POSSIBLE should be N_HIGH_MEMORY? That would require handling
> of memory/node hotplug for each memory control group, right? But, I'm
> going to try N_HIGH_MEMORY as a work around.
>
Hmm, ok. (>_<
> Call Trace:
> [<a000000100014de0>] show_stack+0x80/0xa0
> sp=a0000001008e39c0 bsp=a0000001008dd1b0
> [<a000000100015a70>] show_regs+0x870/0x8a0
> sp=a0000001008e3b90 bsp=a0000001008dd158
> [<a00000010003d130>] die+0x190/0x300
> sp=a0000001008e3b90 bsp=a0000001008dd110
> [<a000000100071b80>] ia64_do_page_fault+0x8e0/0xa20
> sp=a0000001008e3b90 bsp=a0000001008dd0b8
> [<a00000010000b5c0>] ia64_leave_kernel+0x0/0x270
> sp=a0000001008e3c20 bsp=a0000001008dd0b8
> [<a000000100132e10>] __alloc_pages+0x30/0x6e0
> sp=a0000001008e3df0 bsp=a0000001008dcfe0
> [<a000000100187370>] new_slab+0x610/0x6c0
> sp=a0000001008e3e00 bsp=a0000001008dcf80
> [<a000000100187470>] get_new_slab+0x50/0x200
> sp=a0000001008e3e00 bsp=a0000001008dcf48
> [<a000000100187900>] __slab_alloc+0x2e0/0x4e0
> sp=a0000001008e3e00 bsp=a0000001008dcf00
> [<a000000100187c80>] kmem_cache_alloc_node+0x180/0x200
> sp=a0000001008e3e10 bsp=a0000001008dcec0
> [<a0000001001945a0>] mem_cgroup_create+0x160/0x400
> sp=a0000001008e3e10 bsp=a0000001008dce78
> [<a0000001000f0940>] cgroup_init_subsys+0xa0/0x400
> sp=a0000001008e3e20 bsp=a0000001008dce28
> [<a0000001008521f0>] cgroup_init+0x90/0x160
> sp=a0000001008e3e20 bsp=a0000001008dce00
> [<a000000100831960>] start_kernel+0x700/0x820
> sp=a0000001008e3e20 bsp=a0000001008dcd80
>
Maybe zonelists of NODE_DATA() is not initialized. you are right.
I think N_HIGH_MEMORY will be suitable here...(I'll consider node-hotplug case later.)
Thank you for test!
Regards,
-Kame
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next prev parent reply other threads:[~2007-11-29 1:37 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-27 2:55 [PATCH][for -mm] per-zone and reclaim enhancements for memory controller take 3 [0/10] introduction KAMEZAWA Hiroyuki
2007-11-27 2:58 ` [PATCH][for -mm] per-zone and reclaim enhancements for memory controller take 3 [1/10] add scan_global_lru macro KAMEZAWA Hiroyuki
2007-11-27 2:59 ` [PATCH][for -mm] per-zone and reclaim enhancements for memory controller take 3 [2/10] nid/zid helper function for cgroup KAMEZAWA Hiroyuki
2007-11-27 3:00 ` [PATCH][for -mm] per-zone and reclaim enhancements for memory controller take 3 [3/10] per-zone active inactive counter KAMEZAWA Hiroyuki
2007-11-28 21:19 ` Lee Schermerhorn
2007-11-29 1:37 ` KAMEZAWA Hiroyuki [this message]
2007-11-29 2:24 ` KAMEZAWA Hiroyuki
2007-11-29 3:18 ` KAMEZAWA Hiroyuki
2007-11-29 3:26 ` Christoph Lameter
2007-11-29 3:19 ` YAMAMOTO Takashi
2007-11-29 3:25 ` KAMEZAWA Hiroyuki
2007-11-29 3:33 ` YAMAMOTO Takashi
2007-11-29 3:42 ` KAMEZAWA Hiroyuki
2007-11-27 3:01 ` [PATCH][for -mm] per-zone and reclaim enhancements for memory controller take 3 [4/10] calculate mapper_ratio per cgroup KAMEZAWA Hiroyuki
2007-11-27 3:03 ` [PATCH][for -mm] per-zone and reclaim enhancements for memory controller take 3 [5/10] calculate active/inactive imbalance " KAMEZAWA Hiroyuki
2007-11-27 3:04 ` [PATCH][for -mm] per-zone and reclaim enhancements for memory controller take 3 [6/10] remember reclaim priority in memory cgroup KAMEZAWA Hiroyuki
2007-11-27 3:06 ` [PATCH][for -mm] per-zone and reclaim enhancements for memory controller take 3 [7/10] calculate the number of pages to be scanned per cgroup KAMEZAWA Hiroyuki
2007-11-27 3:08 ` [PATCH][for -mm] per-zone and reclaim enhancements for memory controller take 3 [8/10] modifies vmscan.c for isolate globa/cgroup lru activity KAMEZAWA Hiroyuki
2007-11-27 3:10 ` [PATCH][for -mm] per-zone and reclaim enhancements for memory controller take 3 [9/10] per zone lru for cgroup KAMEZAWA Hiroyuki
2007-11-27 3:11 ` [PATCH][for -mm] per-zone and reclaim enhancements for memory controller take 3 [10/10] per-zone-lock " KAMEZAWA Hiroyuki
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