linux-kernel - Re: [PATCH] [mcelog] Start using the new sysfs tunables location

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Message-ID: <20120905184708.GC16230@one.firstfloor.org>
Date:	Wed, 5 Sep 2012 20:47:08 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	"Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>
Cc:	ak@...ux.intel.com, tony.luck@...el.com, andi@...stfloor.org,
	bp@...64.org, x86@...nel.org, linux-kernel@...r.kernel.org,
	linux-edac@...r.kernel.org, ananth@...ibm.com
Subject: Re: [PATCH] [mcelog] Start using the new sysfs tunables location

On Wed, Sep 05, 2012 at 04:02:37PM +0530, Naveen N. Rao wrote:
> All the current mce tunables are now available under
> /sys/devices/system/machinecheck. Start using this new location, but fall back
> to the older per-cpu location so that we continue working with older kernels.

Who did that change in the kernel?

That breaks Linus rule that the kernel should not break userland.
Kernel needs to fix that.

-Andi
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