From mboxrd@z Thu Jan  1 00:00:00 1970
From: Laszlo Ersek <lersek@redhat.com>
Subject: Re: [xen-unstable bisection] complete
	test-amd64-i386-rhel6hvm-intel
Date: Thu, 01 Sep 2011 19:48:51 +0200
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On 09/01/11 18:26, Ian Jackson wrote:

>>    changeset:   23802:bb9b81008733
>>    user:        Laszlo Ersek<lersek@redhat.com>
>>    date:        Wed Aug 31 15:16:14 2011 +0100
>>
>>        x86: Increase the default NR_CPUS to 256
>>
>>        Changeset 21012:ef845a385014 bumped the default to 128 about one and a
>>        half years ago. Increase it now to 256, as systems with eg. 160
>>        logical CPUs are becoming (have become) common.
>>
>>        Signed-off-by: Laszlo Ersek<lersek@redhat.com>

FWIW, the hypervisor shipped in RHEL-5 has been built for 256 CPUs since April 2009, using the max_phys_cpus make macro. I posted the patch because now we changed the in-source macro definition too.

lacos