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Date: Thu, 04 Aug 2011 09:26:34 +0100
From: Marc Zyngier <>
To: Linus Torvalds <>
CC: Andrew Morton <>, 
 Vasiliy Kulikov <>,
 Manuel Lauss <>, 
 "" <>,
 Richard Weinberger <>, Ingo Molnar <>, 
 "" <>,
 "Paul E. McKenney" <>
Subject: Re: [PATCH] shm: fix a race between shm_exit() and shm_init()

On 04/08/11 01:35, Linus Torvalds wrote:
> On Wed, Aug 3, 2011 at 12:30 AM, Marc Zyngier <> wrote:
>> driver_init() is called from do_basic_setup(), before any initcall...
> Ok, thanks everybody. I think the proper fix is the attached patch.
> It's crazy to have usermode helpers enabled early during boot when
> init etc haven't even been set up.
> So does this finally fix the problem (I realize that there are other
> patches floating around that *also* fix it, so please test this
> without those other patches).

This patch alone doesn't cure the problem... However, if combined with
the pure_initcall patch, it boots correctly.

I'll try to gather some traces later today.

Jazz is not dead. It just smells funny...

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