linux-kernel - Re: [PATCH 2/2] x86/CPU/AMD: Print the reason for the last reset

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Message-ID: <Z_QhoXeHf-Itua95@gmail.com>
Date: Mon, 7 Apr 2025 21:04:01 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Mario Limonciello <superm1@...nel.org>
Cc: Borislav Petkov <bp@...en8.de>, Jonathan Corbet <corbet@....net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
	"H . Peter Anvin" <hpa@...or.com>,
	"open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>,
	Yazen Ghannam <yazen.ghannam@....com>,
	Mario Limonciello <mario.limonciello@....com>
Subject: Re: [PATCH 2/2] x86/CPU/AMD: Print the reason for the last reset


* Mario Limonciello <superm1@...nel.org> wrote:

> > I realize that the entire numeric value gets printed as well, but it's
> > the symbolic decoding that is most useful to humans.
> 
> The way that I "envisioned" this working was someone uses their machine and
> suddenly hits a problem.  When they do they look at amd/debugging.rst and
> then run:
> 
> "journalctl -k | grep "System reset was due"
> 
> and then map the odd duck(s) out to the table.

99% of such people wouldn't know about amd/debugging.rst (nor should 
they really: why should there be an extra layer of obfuscation while we 
have this thing called a 'computer' that could ... compute all that 
lookup for us? ;-), and they'd be looking at information in the syslog 
after weird reboots.

We should improve their quality of life as much as possible.

Thanks,

	Ingo