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Date: Mon, 14 May 2018 09:50:43 -0700
From: "Luck, Tony" <tony.luck@intel.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Jeffrin Thalakkottoor <jeffrin@rajagiritech.edu.in>,
        Thomas Gleixner <tglx@linutronix.de>, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, linux-edac@vger.kernel.org,
        lkml <linux-kernel@vger.kernel.org>
Subject: Re: PROBLEM: mce: [Hardware Error] from dmesg -l emerg
Message-ID: <20180514165042.GA2746@agluck-desk>
References: <CAG=yYwmnHgAvauZLxfFcUEACF_J+qh4d2tvYY=AdjHvyeSFK_A@mail.gmail.com>
 <20180514162752.GG23049@pd.tnic>
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On Mon, May 14, 2018 at 06:27:52PM +0200, Borislav Petkov wrote:
> On Mon, May 14, 2018 at 09:19:11PM +0530, Jeffrin Thalakkottoor wrote:
> > hello,
> > 
> > output related of  "sudo dmesg -l emerg" from my laptop...
> > 
> > --------------------------------------------------------------------------------------------------->
> > $sudo dmesg -l emerg
> > [sudo] password for jeffrin:
> > [    0.041023] mce: [Hardware Error]: CPU 0: Machine Check: 0 Bank 5:
> > ee0000000040110b
> > [    0.041028] mce: [Hardware Error]: TSC 0 ADDR 160000080 MISC 5040008086
> > [    0.041034] mce: [Hardware Error]: PROCESSOR 0:306d4 TIME
> > 1526300792 SOCKET 0 APIC 0 microcode 2a
> 
> Run it through mcelog to see what it decodes to:
> 
> dmesg | mcelog --ascii

Is the system crashing? Or do you just see this message but
no other bad effects?

Does is happen every boot? Or was this a one time message?

Can you grab some context lines from dmesg (say 40 lines
leading up to this message) to see what else was going on?

-Tony