Public bug reported:
I was training a neural network on CPU using Tensorflow + Keras in
Python. The crash happened twice in the same day after installing an
update to Ubuntu.
1) Ubuntu 20.04.4 LTS
2)
intel-microcode:
Installed: 3.20210608.0ubuntu0.20.04.1
Candidate: 3.20210608.0ubuntu0.20.04.1
Version table:
*** 3.20210608.0ubuntu0.20.04.1 500
500 http://us.archive.ubuntu.com/ubuntu focal-updates/main amd64
Packages
500 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages
100 /var/lib/dpkg/status
3.20191115.1ubuntu3 500
500 http://us.archive.ubuntu.com/ubuntu focal/main amd64 Packages
3) Not crash.
4) Crash.
Excerpt from /var/log/kern.log:
BERT: Error records from previous boot:
[Hardware Error]: event severity: fatal
[Hardware Error]: Error 0, type: fatal
[Hardware Error]: section_type: Firmware Error Record Reference
[Hardware Error]: Firmware Error Record Type: SOC Firmware Error Record Type2
[Hardware Error]: Revision: 2
[Hardware Error]: Record Identifier: 8f87f311-c998-4d9e-a0c4-6065518c4f6d
[Hardware Error]: 00000000: 0100c303 00000280 04726ce2 0000002f
.........lr./...
[Hardware Error]: 00000010: 000a0000 00000010 80001fff 0001f668
............h...
[Hardware Error]: 00000020: 0001f664 000231c6 deadbeef deafbeef
d....1..........
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: intel-microcode 3.20210608.0ubuntu0.20.04.1
ProcVersionSignature: Ubuntu 5.13.0-30.33~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-30-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Feb 23 09:32:56 2022
InstallationDate: Installed on 2021-11-23 (91 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
SourcePackage: intel-microcode
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: intel-microcode (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1962012
Title:
BERT: Error records from previous boot: Firmware Error Record Type:
SOC Firmware Error Record Type2, Revision: 2, Record Identifier:
8f87f311-c998-4d9e-a0c4-6065518c4f6d while training neural network on
CPU
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