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Date: Sat, 23 Jul 2016 01:21:23 -0400
To: Andy Lutomirski <>
        Borislav Petkov <>, Nadav Amit <>,
        Kees Cook <>, Brian Gerst <>,
        Linus Torvalds <>,
        Josh Poimboeuf <>, Jann Horn <>,
        Heiko Carstens <>
Subject: Re: [PATCH v5 03/32] x86/cpa: In populate_pgd, don't set the pgd entry until it's populated

On Thu, 21 Jul 2016 22:34:33 -0700, Andy Lutomirski said:

> How much memory do you have and what's your config?  My code is
> obviously buggy, but I'm wondering why neither I nor the 0day bot caught
> this.

Probably because your devel box and the 0day bot both have 4-level page
tables and the dual-core i5 in my laptop has (presumably) 3?

In any case, your patch didn't fix things, nor did (as you noted in a mail
to Ingo) does reverting the problem commit (and then the following one that
deletes now-dead code so it will compile cleanly).

8G of memory, 2 4G dimms.  .config attached.  Anything that would help
from /proc or /sys?

View attachment ".config" of type "text/plain " (113193 bytes)

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