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From: Daniel Aberger - Profihost AG <d.aberger@profihost.ag>
To: tony.luck@intel.com, bp@alien8.de, mingo@redhat.com,
	hpa@zytor.com, x86@kernel.org, linux-edac@vger.kernel.org,
	linux-kernel@vger.kernel.org
Cc: s.priebe@profihost.ag, n.fahldieck@profihost.ag, p.kramme@profihost.ag
Subject: MCE reports errors that can't be verified
Date: Mon, 29 Oct 2018 11:45:04 +0100	[thread overview]
Message-ID: <6ccf5413-ce2a-bbb9-0203-b0cc9fe2e641@profihost.ag> (raw)

Hello,

We currently have several servers reporting faulty memory through MCE.

Example dmesg output:

[Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: Machine check events logged
[Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: CPU 12: Machine Check:
0 Bank 7: cc027c0000010091
[Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: TSC 0 ADDR 70fc337d80
MISC 50202086
[Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: PROCESSOR 0:306f2 TIME
1534938887 SOCKET 1 APIC 20 microcode 3d
[Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: Machine check events logged
[Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: CPU 14: Machine Check:
0 Bank 7: 8c00004000010091
[Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: TSC 0 ADDR 70fb117d40
MISC 4268e886
[Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: PROCESSOR 0:306f2 TIME
1534938887 SOCKET 1 APIC 24 microcode 3d
[Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: CPU 15: Machine Check:
0 Bank 7: cc00008000010091
[Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: TSC 0 ADDR 70fb1b3ec0
MISC 142189886
[Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: PROCESSOR 0:306f2 TIME
1534938887 SOCKET 1 APIC 26 microcode 3d

Normally we verify those errors by checking IPMIs event log, but no
errors are showing there.

Neither IPMI nor ras-mc-ctl report any errors.

We encountered this problem running Kernel 4.12.0 based on openSUSE
SLE15 on commit a906b62b3f80679eac4f38373492a871c5f3568e.

Is this an MCE Kernel bug?


-- 
Mit freundlichen Grüßen
  Daniel Aberger
Ihr Profihost Team

-------------------------------
Profihost AG
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30539 Hannover
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Tel.: +49 (511) 5151 8181     | Fax.: +49 (511) 5151 8282
URL: http://www.profihost.com | E-Mail: info@profihost.com

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Vorstand: Cristoph Bluhm, Sebastian Bluhm, Stefan Priebe
Aufsichtsrat: Prof. Dr. iur. Winfried Huck (Vorsitzender)

             reply	other threads:[~2018-10-29 10:45 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-29 10:45 Daniel Aberger - Profihost AG [this message]
2018-10-29 16:15 ` Borislav Petkov
2018-10-29 16:59   ` Luck, Tony
2018-10-29 17:51     ` Borislav Petkov
2018-10-29 18:25       ` Luck, Tony
2018-10-30  7:22         ` Daniel Aberger - Profihost AG

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