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Date: Wed, 5 Jun 2024 18:10:07 +0800
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Subject: Re: [PATCH] x86/hpet: Read HPET directly if panic in progress
To: Borislav Petkov <bp@alien8.de>
CC: Thomas Gleixner <tglx@linutronix.de>, Linus Torvalds
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From: Tony W Wang-oc <TonyWWang-oc@zhaoxin.com>
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On 2024/6/5 17:36, Borislav Petkov wrote:
> 
> 
> [这封邮件来自外部发件人 谨防风险]
> 
> On Wed, Jun 05, 2024 at 02:23:32PM +0800, Tony W Wang-oc wrote:
>> After MCE has occurred, it is possible for the MCE handler to execute the
>> add_taint() function without panic. For example, the fake_panic is
>> configured.
> 
> fake_panic is an ancient debugging leftover. If you set it, you get what
> you deserve.
> 

It may also happen without setting fake_panic, such as an MCE error of 
the UCNA/SRAO type occurred?

Sincerely
TonyWWang-oc

> --
> Regards/Gruss,
>      Boris.
> 
> https://people.kernel.org/tglx/notes-about-netiquette