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OCI-C - OL 7.5 UEK5 Instance is Not Booting After an Upgrade From OL7.4(UEK4) (Doc ID 2434433.1)

Last updated on MAY 07, 2021

Applies to:

Oracle Compute Cloud Service - Version N/A to N/A
Linux x86-64
Linux x86

Symptoms

 OCI-C OL 7.5 instance's are not booting after upgrading to UEK5 from UEK4.

 

[0.194000] xen_netfront: Initialising Xen virtual ethernet driver
[ 0.194000] blkfront: xvdb: barrier or flush: disabled; persistent grants: enabled; indirect descriptors: enabled;
[ 0.194000] xvdb: xvdb1 xvdb2

or

[ 0.149000] unchecked MSR access error: RDMSR from 0xc90 at rIP: 0xffffffffb9070577 (native_read_msr+0x7/0x2e)
[ 0.149000] Call Trace:
[ 0.149000] intel_rdt_late_init+0x65/0x3bb
[ 0.149000] ? rdt_cpu_has+0x4b/0x4b
[ 0.149000] do_one_initcall+0x54/0x1a8
[ 0.149000] ? do_early_param+0x15/0x90
[ 0.149000] kernel_init_freeable+0x1ae/0x24d
[ 0.149000] ? do_early_param+0x90/0x90
[ 0.149000] ? rest_init+0xb0/0xac
[ 0.149000] kernel_init+0xe/0x10e
[ 0.149000] ret_from_fork+0x3e/0x49
[ 0.149000] RAS: Correctable Errors collector initialized.

Changes

 Upgrading to UEK5 from UEK4

Cause

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In this Document
Symptoms
Changes
Cause
Solution

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