linux-kernel - Re: [PATCH] x86/mce: drop cpu_missing since we have more capable mce_missing

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Message-ID: <YYrQe7bYe+OBzZ4B@zn.tnic>
Date:   Tue, 9 Nov 2021 20:48:11 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     "Luck, Tony" <tony.luck@...el.com>
Cc:     Zhaolong Zhang <zhangzl2013@....com>,
        "x86@...nel.org" <x86@...nel.org>,
        "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Paul E . McKenney" <paulmck@...nel.org>
Subject: Re: [PATCH] x86/mce: drop cpu_missing since we have more capable
 mce_missing_cpus

On Tue, Nov 09, 2021 at 04:06:48PM +0000, Luck, Tony wrote:
> Just a note that skipping the mce_panic() here isn't going to help
> much. With some CPUs stuck not responding to #MC the system is going
> to lock up or crash for other timeouts in the next few seconds.

Yeh, I spent a couple of minutes today staring at this ->tolerant
thing and wondering why we need it at all. I wouldn't mind ripping it
altogether unless you're using it for testing or so.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette