linux-kernel - Re: "bad pmd" errors + oops with KPTI on 4.14.11 after loading X.509 certs

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Message-ID: <20180104072216.qvcomyzmx3x6leph@gmail.com>
Date:   Thu, 4 Jan 2018 08:22:16 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Benjamin Gilbert <benjamin.gilbert@...eos.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        x86@...nel.org, linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        stable@...r.kernel.org, Andy Lutomirski <luto@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: "bad pmd" errors + oops with KPTI on 4.14.11 after loading X.509
 certs


* Ingo Molnar <mingo@...nel.org> wrote:

> These will cherry-pick cleanly, so it would be nice to test them on top of of the 
> -stable kernel that fails:
> 
>   for N in 450cbdd0125c 4d2dc2cc766c 1e0f25dbf246 be62a3204406 0c3292ca8025 9d0b62328d34; do git cherry-pick $N; done
> 
> if this brute-force approach resolves the problem then we have a shorter list of 
> fixes to look at.

As per Greg's followup this should not matter - but nevertheless for completeness 
these commits also need f54bb2ec02c83 as a dependency, so the full list is:

   for N in 450cbdd0125c 4d2dc2cc766c 1e0f25dbf246 be62a3204406 0c3292ca8025 9d0b62328d34 f54bb2ec02c83; do git cherry-pick $N; done

Thanks,

	Ingo