linux-kernel - WARNING: at arch/x86/kernel/smpboot.c:324 topology

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Message-ID: <20140206094428.GC17971@localhost>
Date:	Thu, 6 Feb 2014 17:44:28 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	Tang Chen <tangchen@...fujitsu.com>
Cc:	Wen Congyang <wency@...fujitsu.com>,
	Linux Memory Management List <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: WARNING: at arch/x86/kernel/smpboot.c:324 topology_sane()

Hi Tang,

We noticed the below warning and the first bad commit is

commit e8d1955258091e4c92d5a975ebd7fd8a98f5d30f
Author:     Tang Chen <tangchen@...fujitsu.com>
AuthorDate: Fri Feb 22 16:33:44 2013 -0800
Commit:     Linus Torvalds <torvalds@...ux-foundation.org>
CommitDate: Sat Feb 23 17:50:14 2013 -0800

    acpi, memory-hotplug: parse SRAT before memblock is ready
    
 arch/x86/kernel/setup.c | 13 +++++++++----
 arch/x86/mm/numa.c      |  6 ++++--
 drivers/acpi/numa.c     | 23 +++++++++++++----------
 include/linux/acpi.h    |  8 ++++++++
 4 files changed, 34 insertions(+), 16 deletions(-)

[    0.845092] smpboot: Booting Node   1, Processors  #1
[    0.864812] masked ExtINT on CPU#1
[    0.868706] CPU1: Thermal LVT vector (0xfa) already installed
[    0.875158] ------------[ cut here ]------------
[    0.880330] WARNING: at arch/x86/kernel/smpboot.c:324 topology_sane.isra.2+0x6b/0x7c()
[    0.891505] Hardware name: S2600CP
[    0.895314] sched: CPU #1's llc-sibling CPU #0 is not on the same node! [node: 1 != 0]. Ignoring dependency.

[    0.906295] Modules linked in:
[    0.909927] Pid: 0, comm: swapper/1 Not tainted 3.8.0-06530-ge8d1955 #1
[    0.917314] Call Trace:
[    0.920055]  [<ffffffff81970409>] ? topology_sane.isra.2+0x6b/0x7c
[    0.926963]  [<ffffffff810bcd5d>] warn_slowpath_common+0x81/0x99
[    0.933667]  [<ffffffff810bcdc1>] warn_slowpath_fmt+0x4c/0x4e
[    0.940092]  [<ffffffff8196b565>] ? calibrate_delay+0xae/0x4ba
[    0.946612]  [<ffffffff810508ea>] ? __mcheck_cpu_init_timer+0x4a/0x4f
[    0.953799]  [<ffffffff81970409>] topology_sane.isra.2+0x6b/0x7c
[    0.960509]  [<ffffffff819706e0>] set_cpu_sibling_map+0x28c/0x43a
[    0.967308]  [<ffffffff81970a3c>] start_secondary+0x1ae/0x276
[    0.973742] ---[ end trace db722b2086ba6d20 ]---
[    0.999234]  OK
[    1.001655] smpboot: Booting Node   0, Processors  #2

Full dmesg and kconfig are attached.

Thanks,
Fengguang

View attachment ".dmesg" of type "text/plain" (151308 bytes)

View attachment "config-3.8.0-06530-ge8d1955" of type "text/plain" (76479 bytes)