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Date: Fri, 17 Nov 2017 17:54:03 -0800
From: Patrick McLean <>
To: Linus Torvalds <>
Cc: Kees Cook <>, Emese Revfy <>,
 Al Viro <>, Bruce Fields <>,
 "Darrick J. Wong" <>,
 Linux Kernel Mailing List <>,
 Linux NFS Mailing List <>,
 stable <>,
 Thorsten Leemhuis <>,
 "" <>
Subject: Re: [nfsd4] potentially hardware breaking regression in 4.14-rc and

On 2017-11-17 04:55 PM, Linus Torvalds wrote:
> On Fri, Nov 17, 2017 at 4:27 PM, Patrick McLean <> wrote:
>> I am still getting the crash at d9e12200852d, I figured I would
>> double-check the "good" and "bad" kernels before starting a full bisect.
> .. but without GCC_PLUGIN_RANDSTRUCT it's solid?

Yes, without GCC_PLUGIN_RANDSTRUCT it's solid.

> Kees removed even the baseline "randomize pure function pointer
> structures", so at that commit, nothing should be randomized.
> But maybe the plugin code itself ends up confusing gcc somehow?
> Even when it doesn't actually do that "relayout_struct()" on the
> structure, it always does those TYPE_ATTRIBUTES() games.

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