From: Pekka Enberg <penberg@cs.helsinki.fi>
To: Mel Gorman <mel@csn.ul.ie>
Cc: lee.schermerhorn@hp.com, Olaf Hering <olaf@aepfle.de>,
Linux MM <linux-mm@kvack.org>,
linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
hanth Aravamudan <nacc@us.ibm.com>,
akpm@linux-foundation.org,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Christoph Lameter <clameter@sgi.com>
Subject: Re: crash in kmem_cache_init
Date: Wed, 23 Jan 2008 00:59:44 +0200 [thread overview]
Message-ID: <47967560.8080101@cs.helsinki.fi> (raw)
In-Reply-To: <20080122225046.GA866@csn.ul.ie>
Hi,
Mel Gorman wrote:
> Faulting instruction address: 0xc0000000003c8c00
> cpu 0x0: Vector: 300 (Data Access) at [c0000000005c3840]
> pc: c0000000003c8c00: __lock_text_start+0x20/0x88
> lr: c0000000000dadec: .cache_grow+0x7c/0x338
> sp: c0000000005c3ac0
> msr: 8000000000009032
> dar: 40
> dsisr: 40000000
> current = 0xc000000000500f10
> paca = 0xc000000000501b80
> pid = 0, comm = swapper
> enter ? for help
> [c0000000005c3b40] c0000000000dadec .cache_grow+0x7c/0x338
> [c0000000005c3c00] c0000000000db54c .fallback_alloc+0x1c0/0x224
> [c0000000005c3cb0] c0000000000db958 .kmem_cache_alloc+0xe0/0x14c
> [c0000000005c3d50] c0000000000dcccc .kmem_cache_create+0x230/0x4cc
> [c0000000005c3e30] c0000000004c05f4 .kmem_cache_init+0x310/0x640
> [c0000000005c3ee0] c00000000049f8d8 .start_kernel+0x304/0x3fc
> [c0000000005c3f90] c000000000008594 .start_here_common+0x54/0xc0
> 0:mon>
I mentioned this already but received no response (maybe I am missing
something totally obvious here):
When we call fallback_alloc() because the current node has ->nodelists
set to NULL, we end up calling kmem_getpages() with -1 as the node id
which is then translated to numa_node_id() by alloc_pages_node. But the
reason we called fallback_alloc() in the first place is because
numa_node_id() doesn't have a ->nodelist which makes cache_grow() oops.
Pekka
next prev parent reply other threads:[~2008-01-22 23:12 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-15 15:09 crash in kmem_cache_init Olaf Hering
2008-01-15 15:58 ` Olaf Hering
2008-01-17 12:14 ` Pekka Enberg
2008-01-17 14:30 ` Christoph Lameter
2008-01-17 18:12 ` Olaf Hering
2008-01-17 18:58 ` Christoph Lameter
2008-01-17 19:54 ` Olaf Hering
2008-01-17 20:20 ` Olaf Hering
2008-01-19 4:56 ` Christoph Lameter
2008-01-17 21:15 ` Olaf Hering
2008-01-18 6:56 ` Olaf Hering
2008-01-18 18:42 ` Christoph Lameter
2008-01-19 4:55 ` Christoph Lameter
2008-01-18 18:47 ` Christoph Lameter
2008-01-18 21:30 ` Mel Gorman
2008-01-18 21:43 ` Christoph Lameter
2008-01-18 22:16 ` Christoph Lameter
2008-01-18 22:19 ` Nish Aravamudan
2008-01-18 22:38 ` Christoph Lameter
2008-01-18 22:57 ` Olaf Hering
2008-01-22 19:54 ` Mel Gorman
2008-01-22 20:11 ` Christoph Lameter
2008-01-22 21:26 ` Mel Gorman
2008-01-22 21:34 ` Christoph Lameter
2008-01-22 22:50 ` Mel Gorman
2008-01-22 22:57 ` Christoph Lameter
2008-01-22 23:10 ` Mel Gorman
2008-01-22 23:14 ` Christoph Lameter
2008-01-22 22:59 ` Pekka Enberg [this message]
2008-01-22 23:12 ` Christoph Lameter
2008-01-22 23:18 ` Christoph Lameter
2008-01-23 8:19 ` Pekka Enberg
2008-01-23 8:40 ` Olaf Hering
2008-01-22 21:45 ` Olaf Hering
2008-01-22 22:12 ` Nish Aravamudan
2008-01-22 22:23 ` Christoph Lameter
2008-01-23 7:58 ` Olaf Hering
2008-01-23 10:50 ` Mel Gorman
2008-01-23 12:14 ` Olaf Hering
2008-01-23 12:52 ` Olaf Hering
2008-01-23 13:55 ` [PATCH] Fix boot problem in situations where the boot CPU is running on a memoryless node Mel Gorman
2008-01-23 14:18 ` Pekka J Enberg
2008-01-23 14:32 ` Pekka J Enberg
2008-01-23 14:49 ` Pekka J Enberg
2008-01-23 15:56 ` Mel Gorman
2008-01-23 17:29 ` Pekka J Enberg
2008-01-23 17:42 ` Pekka J Enberg
2008-01-23 18:51 ` Christoph Lameter
2008-01-23 19:52 ` Nishanth Aravamudan
2008-01-23 21:02 ` Pekka Enberg
2008-01-23 21:14 ` Christoph Lameter
2008-01-23 21:36 ` Nishanth Aravamudan
2008-01-24 3:13 ` Christoph Lameter
2008-01-23 18:36 ` Christoph Lameter
2008-01-23 18:35 ` Christoph Lameter
2008-01-23 14:27 ` Olaf Hering
2008-01-23 14:42 ` Mel Gorman
2008-01-23 18:41 ` Christoph Lameter
2008-01-23 13:41 ` crash in kmem_cache_init Mel Gorman
2008-01-18 18:51 ` Christoph Lameter
2008-01-17 19:03 ` Christoph Lameter
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