linux-kernel - Re: [RH72 Spectre] ibpb_enabled = 1 leads to hard LOCKUP under x86

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Date:   Sat, 20 Jan 2018 10:03:05 +0100
From:   David Woodhouse <dwmw2@...radead.org>
To:     Hou Tao <houtao1@...wei.com>, aarcange@...hat.com,
        linux-kernel@...r.kernel.org,
        "arjan.van.de.ven@...el.com" <arjan.van.de.ven@...el.com>
Cc:     mingo@...hat.com, Thomas Gleixner <tglx@...utronix.de>,
        ak@...ux.intel.com, dave.hansen@...ux.intel.com,
        peterz@...radead.org, qiuxishi@...wei.com,
        wangkefeng.wang@...wei.com
Subject: Re: [RH72 Spectre] ibpb_enabled = 1 leads to hard LOCKUP under
 x86_64 host machine

On Sat, 2018-01-20 at 17:00 +0800, Hou Tao wrote:
> 
> So has anyone encountered a similar problem before, and any suggestions
> and directions for the hard LOCKUP problems ?

Arjan, what is the Intel recommendation here?
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