linux-kernel - nr_cpu_ids incorrect on AMD Quad-Core Opteron 8380

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Message-Id: <A1D71FDC-3176-4792-83ED-3ACAA3D61CFF@cs.otago.ac.nz>
Date:	Thu, 28 Jan 2010 12:16:44 +1300
From:	zhiyi <zhuang@...otago.ac.nz>
To:	linux-kernel@...r.kernel.org
Cc:	Zhiyi Huang <hzy@...otago.ac.nz>
Subject: nr_cpu_ids incorrect on AMD Quad-Core Opteron 8380

Hi,
I have just found the value of nr_cpu_ids is 32, instead of 16 on my  
new Dell PowerEdge R905 which has 16 cpus (4 quad-core Opteron 8380).  
However, /proc/cpuinfo displays the right number (16).
I have searched the archive but found no related subject.  Is there  
any patch already available to fix the problem?
I am using 2.6.31-4 and verified this incorrect value (32) using a  
module.
Please CC responses to my personal email.
Cheers,
Zhiyi
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