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Message-ID: <16850.1469698007@turing-police.cc.vt.edu>
Date: Thu, 28 Jul 2016 05:26:47 -0400
From: Valdis.Kletnieks@...edu
To: Nicolai Stange <nicstange@...il.com>
Cc: Andy Lutomirski <luto@...nel.org>, kernel-hardening@...ts.openwall.com,
x86@...nel.org, linux-kernel@...r.kernel.org,
linux-arch@...r.kernel.org, Borislav Petkov <bp@...en8.de>,
Nadav Amit <nadav.amit@...il.com>, Kees Cook <keescook@...omium.org>,
Brian Gerst <brgerst@...il.com>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Josh Poimboeuf <jpoimboe@...hat.com>, Jann Horn <jann@...jh.net>,
Heiko Carstens <heiko.carstens@...ibm.com>,
Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH v5 03/32] x86/cpa: In populate_pgd, don't set the pgd entry until it's populated
On Sat, 23 Jul 2016 16:58:16 +0200, Nicolai Stange said:
> Valdis.Kletnieks@...edu writes:
> The reason the patch didn't work for Valdis might be that there is
> another issue in next-20150722 with the same symptoms (provided you
> don't watch the serial console). Valdis, did you apply the provided
> patch on top of next?
Sorry, am on vacation, and no option for a serial console, that's why
I missed the part about there being *two* issues...
> The "other issue" is:
>
> (...)
> [<ffffffffb6055487>] load_microcode.isra.1.constprop.12+0x37/0xa0
> I bisected this one to 21ef9a5c3164 ("Merge branch 'x86/microcode'"). Both
> of its parents do not exhibit that behaviour. This merge's author is
> Ingo Molnar, so I added him to the CC list.
Confirming that I'm up and running on next-20160727 plus Borislav's patch:
Subject: [PATCH -v2 2/2] x86/microcode/intel: Fix initrd loading with CONFIG_RANDOMIZE_MEMORY
with USERCOPY, Andy Lutomirski's stack/thread cleanup work, and microcode loading
from initramfs all working....
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