linux-kernel - Re: [PATCH 0/5 v2] [GIT PULL] x86/jump label: Paranoid checks and 2 or 5 byte nops

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Date:	Fri, 03 Feb 2012 08:31:14 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jason Baron <jbaron@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCH 0/5 v2] [GIT PULL] x86/jump label: Paranoid checks and 2
 or 5 byte nops

On Fri, 2012-02-03 at 08:36 +0100, Ingo Molnar wrote:
> * Steven Rostedt <rostedt@...dmis.org> wrote:
> 
> > Now I'm running a ktest bisect on the out-of-tree branch to 
> > find the commit that prevents this box from booting. [...]
> 
> Let me know once you have found that and are able to boot -tip 
> with your new bits applied. tip:out-of-tree needs definitely 
> needs a cleanup - I'll probably even make it internal to my 
> testing to not uglify tip:master.

Found it. I found this once before, but couldn't find it when I looked,
but it was still there :-/

Anyway, here's the commit that prevents my box from booting:

commit 41e95d95208c62d4b0fbcee5f16d93e23ca32984
Author: Ingo Molnar <mingo@...e.hu>
Date:   Thu Sep 17 23:12:20 2009 +0200

    <not-for-merge> Disable DEVTMPFS_MOUNT for now


It seems that this box requires DEVTMPFS_MOUNT to be set in order to
boot.

-- Steve


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