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Re: [PATCH 3/6] x86/mce: Add support for new MCA_SYND register

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On Fri, Jul 08, 2016 at 11:26:59AM +0200, Ingo Molnar wrote:
> So why does neither the changelog nor the code comment actually _explain_ this and 
> give aa bit of a background about what 'syndrome information' is and why we want 
> to have kernel support for it?
> 
> This is why I hate kernel tooling that is not part of the kernel tree - the mcelog 
> patch (hopefully ...) would tell us more about all this - but it's separate and 
> this patch does not tell us anything ...

Ah, this is one of those omissions where we forgot to explain, sorry.
How about this:

"The syndrome value is used to uniquely identify which bits of a
reported ECC error are corrupted."

Do you want it as a comment in the code or in the commit message or both?

Thanks.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.

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[PATCH 0/6] x86/RAS queue Borislav Petkov <bp@alien8.de> - 2016-07-08 11:10 +0200
  [PATCH 2/6] x86/RAS/AMD: Reduce number of IPIs when prepping error injection Borislav Petkov <bp@alien8.de> - 2016-07-08 11:20 +0200
    [tip:ras/core] x86/RAS/AMD: Reduce the number of IPIs when prepping  error injection tip-bot for Yazen Ghannam <tipbot@zytor.com> - 2016-07-08 14:10 +0200
  [PATCH 6/6] x86/RAS: Add syndrome support to mce_amd_inj Borislav Petkov <bp@alien8.de> - 2016-07-08 11:20 +0200
  [PATCH 5/6] EDAC, mce_amd: Print syndrome register value on SMCA systems Borislav Petkov <bp@alien8.de> - 2016-07-08 11:20 +0200
  [PATCH 3/6] x86/mce: Add support for new MCA_SYND register Borislav Petkov <bp@alien8.de> - 2016-07-08 11:20 +0200
    Re: [PATCH 3/6] x86/mce: Add support for new MCA_SYND register Ingo Molnar <mingo@kernel.org> - 2016-07-08 11:30 +0200
      Re: [PATCH 3/6] x86/mce: Add support for new MCA_SYND register Borislav Petkov <bp@alien8.de> - 2016-07-08 11:40 +0200
        Re: [PATCH 3/6] x86/mce: Add support for new MCA_SYND register Ingo Molnar <mingo@kernel.org> - 2016-07-08 11:50 +0200
          Re: [PATCH 3/6] x86/mce: Add support for new MCA_SYND register Borislav Petkov <bp@alien8.de> - 2016-07-08 12:20 +0200
            Re: [PATCH 3/6] x86/mce: Add support for new MCA_SYND register Ingo Molnar <mingo@kernel.org> - 2016-07-08 12:30 +0200
              Re: [PATCH 3/6] x86/mce: Add support for new MCA_SYND register Borislav Petkov <bp@alien8.de> - 2016-07-08 12:50 +0200
  [PATCH 1/6] x86/mce/AMD: Increase size of bank_map type Borislav Petkov <bp@alien8.de> - 2016-07-08 11:20 +0200
    Re: [PATCH 1/6] x86/mce/AMD: Increase size of bank_map type Ingo Molnar <mingo@kernel.org> - 2016-07-08 11:30 +0200
      Re: [PATCH 1/6] x86/mce/AMD: Increase size of bank_map type Borislav Petkov <bp@alien8.de> - 2016-07-08 11:40 +0200
    [tip:ras/core] x86/mce/AMD: Increase size of the bank_map type tip-bot for Aravind Gopalakrishnan <tipbot@zytor.com> - 2016-07-08 14:10 +0200
  [PATCH 4/6] x86/mce: Fix mce_rdmsrl() warning message Borislav Petkov <bp@alien8.de> - 2016-07-08 11:20 +0200
    [tip:ras/core] x86/mce: Fix mce_rdmsrl() warning message tip-bot for Borislav Petkov <tipbot@zytor.com> - 2016-07-08 14:10 +0200

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