linux-kernel - Re: tip -ENOBOOT - bisected to locking/refcounts, x86/asm: Implement fast refcount overflow protection

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Date:   Thu, 31 Aug 2017 05:12:56 +0200
From:   Mike Galbraith <efault@....de>
To:     Kees Cook <keescook@...omium.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
        "Reshetova, Elena" <elena.reshetova@...el.com>
Subject: Re: tip -ENOBOOT - bisected to locking/refcounts, x86/asm:
 Implement fast refcount overflow protection

On Wed, 2017-08-30 at 19:27 -0700, Kees Cook wrote:

> Interesting! Can you try with 633547973ffc3 ("net: convert
> sk_buff.users from atomic_t to refcount_t") reverted? I'll see if
> running haveged will help me trigger this on my system...

With that (plus 230cd1279d001 fix to it) reverted, vbox boots.

	-Mike