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Re: Question with maxcpus= parameter.

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On Sun, Nov 8, 2015 at 9:47 PM, Zhenzhong Duan
<zhenzhong.duan@oracle.com> wrote:
> Tried nr_cpus=4, works.
>

nr_cpus and maxcpus are different.

maxcpus=4 means kernel will only bring up 4 cpus, but other cpus still
can be brought up online.
if there are more cpu are there according acpi MADT.

nr_cpus=4 that means 4 is hard limit, just like you compiled kernel
with CONFIG_NR_CPUS=4.

Yinghai
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Thread

Question with maxcpus= parameter. Zhenzhong Duan <zhenzhong.duan@oracle.com> - 2015-11-06 06:30 +0100
  Re: Question with maxcpus= parameter. "Raj, Ashok" <ashok.raj@intel.com> - 2015-11-06 07:00 +0100
    Re: Question with maxcpus= parameter. Zhenzhong Duan <zhenzhong.duan@oracle.com> - 2015-11-06 07:30 +0100
  Re: Question with maxcpus= parameter. Zhenzhong Duan <zhenzhong.duan@oracle.com> - 2015-11-09 06:50 +0100
    Re: Question with maxcpus= parameter. Yinghai Lu <yinghai@kernel.org> - 2015-11-09 07:20 +0100
      Re: Question with maxcpus= parameter. Zhenzhong Duan <zhenzhong.duan@oracle.com> - 2015-11-09 10:10 +0100
        Re: Question with maxcpus= parameter. Yinghai Lu <yinghai@kernel.org> - 2015-11-09 18:10 +0100

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