Bug 1848439

Summary:	[rhel-8.1.0] skylake (06-4e-03) microcode update hangs
Product:	Red Hat Enterprise Linux 8	Reporter:	RHEL Program Management Team <pgm-rhel-tools>
Component:	microcode_ctl	Assignee:	Eugene Syromiatnikov <esyr>
Status:	CLOSED ERRATA	QA Contact:	Jeff Bastian <jbastian>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	8.2	CC:	skozina
Target Milestone:	rc	Keywords:	ZStream
Target Release:	8.0
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	microcode_ctl-20190618-1.20200609.1.el8_1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1846119	Environment:
Last Closed:	2020-06-23 13:11:50 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1846119
Bug Blocks:

Comment 3 Jeff Bastian 2020-06-22 20:25:17 UTC

Verified with microcode_ctl-20190618-1.20200609.1.el8_1.

The failed tasks are due to the blacklisted microcode for the CPU models due to the potential for a system freeze at boot.  The failure is because the system is not running the latest version of the microcode due to the blacklist, thus the failure is expected and it means the blacklist is working.

When the microcode update was forced, the 06-4e-03 system did hang on boot and I had to interrupt grub and add dis_ucode_ldr to get the system to boot and finish running the job.

https://beaker.engineering.redhat.com/jobs/4372429

Comment 5 errata-xmlrpc 2020-06-23 13:11:50 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2020:2677