Bug 2007138

Summary:	[SAP AMI only] set process max cstate and intel max cstate in grub defaults
Product:	Red Hat Enterprise Linux 8	Reporter:	Frank Liang <xiliang>
Component:	ec2-images	Assignee:	Dennis Gregorovic <dgregor>
Status:	CLOSED ERRATA	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	8.2	CC:	asherlan, bkhomuts, igulina, lmiksik, lsedlar, nsaini, toneata
Target Milestone:	rc	Keywords:	Triaged, ZStream
Target Release:	8.5	Flags:	pm-rhel: mirror+
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1961225
Clones:	2010857 2010858 2010860 (view as bug list)		Environment:
Last Closed:	2022-05-10 14:52:02 UTC	Type:	Bug
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:	1961225, 2007140
Bug Blocks:	2010857, 2010858, 2010860

Comment 8 Irina Gulina 2022-01-06 19:49:55 UTC

Verified for ami-075ed2fafb0c1aa69

[ec2-user@ip-10-0-1-73 ~]$ cat /etc/default/grub
GRUB_TIMEOUT=1
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="console=ttyS0,115200n8 console=tty0 net.ifnames=0 rd.blacklist=nouveau nvme_core.io_timeout=4294967295 processor.max_cstate=1 intel_idle.max_cstate=1 crashkernel=auto"
GRUB_DISABLE_RECOVERY="true"
GRUB_ENABLE_BLSCFG=true
[ec2-user@ip-10-0-1-73 ~]$ uname -a
Linux ip-10-0-1-73 4.18.0-147.56.1.el8_1.x86_64 #1 SMP Wed Sep 15 02:24:28 EDT 2021 x86_64 x86_64 x86_64 GNU/Linux

Comment 9 Irina Gulina 2022-01-06 19:57:43 UTC

ops, wrong shell: here is a correct one for 8.2: 
ami-0706d92706869e46f

[ec2-user@ip-10-0-1-172 ~]$ uname -a
Linux ip-10-0-1-172 4.18.0-193.65.2.el8_2.x86_64 #1 SMP Mon Aug 30 04:52:32 EDT 2021 x86_64 x86_64 x86_64 GNU/Linux
[ec2-user@ip-10-0-1-172 ~]$ cat /etc/default/grub
GRUB_TIMEOUT=1
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="console=ttyS0,115200n8 console=tty0 net.ifnames=0 rd.blacklist=nouveau nvme_core.io_timeout=4294967295 processor.max_cstate=1 intel_idle.max_cstate=1 crashkernel=auto"
GRUB_DISABLE_RECOVERY="true"
GRUB_ENABLE_BLSCFG=true

Comment 11 errata-xmlrpc 2022-05-10 14:52:02 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 (redhat-release bug fix and enhancement update), 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/RHBA-2022:1984