linux-kernel - Re: Backporting to v5.6: fd258dc4442c ("x86/mce: Add Skylake quirk for patrol scrub reported errors")

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Message-ID: <20210401183803.GG2696@paulmck-ThinkPad-P72>
Date:   Thu, 1 Apr 2021 11:38:03 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     Borislav Petkov <bp@...e.de>
Cc:     tony.luck@...el.com, linux-kernel@...r.kernel.org, riel@...riel.com
Subject: Re: Backporting to v5.6: fd258dc4442c ("x86/mce: Add Skylake quirk
 for patrol scrub reported errors")

On Thu, Apr 01, 2021 at 08:18:54PM +0200, Borislav Petkov wrote:
> Hey Paul,
> 
> On Thu, Apr 01, 2021 at 09:17:40AM -0700, Paul E. McKenney wrote:
> > Hello!
> > 
> > We are looking at backporting fd258dc4442c ("x86/mce: Add Skylake quirk
> > for patrol scrub reported errors") to v5.6.  When accompanied by these
> > guys, it passes our usual kernel smoke-testing:
> > 
> > 1df73b2131e3 ("x86/mce: Fixup exception only for the correct MCEs")
> > 1de08dccd383 ("x86/mce: Add a struct mce.kflags field")
> 
> why do you even need those two?
> 
> fd258dc4442c gives you only an Action Optional severity for that
> particular error type and the other two patches are for recovery of
> errors in the kernel memory range, i.e., for pmem etc., so should be
> unrelated.
> 
> I mean, it depends on what you want to backport, ofc.

Even better, thank you very much!

							Thanx, Paul