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[v4.6-rc1 Regression] x86/topology: Create logical package id

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Hi Thomas,

A kernel bug report was opened against Ubuntu [0].  After a kernel
bisect, it was found that reverting the following commit resolved this bug:

commit 1f12e32f4cd5243ae46d8b933181be0d022c6793
Author: Thomas Gleixner <tglx@linutronix.de>
Date:   Mon Feb 22 22:19:15 2016 +0000

    x86/topology: Create logical package id

To build successfully with this commit reverted, I also had to revert
commits: e7ee3e8,2d4de83,87f01cc and 33c3cc7.

The regression was introduced as of v4.6-rc1.
    
I was hoping to get your feedback, since you are the patch author.  Do
you think gathering any additional data will help diagnose this issue,
or would it be best to submit a revert request?
    
    
Thanks,
    
Joe

[0] http://pad.lv/1573231

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[v4.6-rc1 Regression] x86/topology: Create logical package id Joseph Salisbury <joseph.salisbury@canonical.com> - 2016-05-06 20:20 +0200
  Re: [v4.6-rc1 Regression] x86/topology: Create logical package id Thomas Gleixner <tglx@linutronix.de> - 2016-05-06 21:00 +0200
    Re: [v4.6-rc1 Regression] x86/topology: Create logical package id Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-05-06 21:20 +0200
      Re: [v4.6-rc1 Regression] x86/topology: Create logical package id Joseph Salisbury <joseph.salisbury@canonical.com> - 2016-05-06 21:40 +0200
        Re: [v4.6-rc1 Regression] x86/topology: Create logical package id Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-05-06 22:50 +0200
          Re: [v4.6-rc1 Regression] x86/topology: Create logical package id Joseph Salisbury <joseph.salisbury@canonical.com> - 2016-05-06 23:00 +0200
            Re: [v4.6-rc1 Regression] x86/topology: Create logical package id Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-05-06 23:30 +0200
    Re: [v4.6-rc1 Regression] x86/topology: Create logical package id Joseph Salisbury <joseph.salisbury@canonical.com> - 2016-05-06 21:40 +0200
      Re: [v4.6-rc1 Regression] x86/topology: Create logical package id Joseph Salisbury <joseph.salisbury@canonical.com> - 2016-05-06 23:00 +0200
    Re: [v4.6-rc1 Regression] x86/topology: Create logical package id Ingo Molnar <mingo@kernel.org> - 2016-05-07 07:20 +0200
    [tip:x86/urgent] x86/topology: Handle CPUID bogosity gracefully tip-bot for Thomas Gleixner <tipbot@zytor.com> - 2016-05-07 10:20 +0200

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