Processes hang with unchecked MSR access error
Issue
-
Kernel logs (
dmesg) include a message similar to the following;[ 4179.926842] unchecked MSR access error: RDMSR from 0x771 at rIP: 0xffffffffb4057c1b (__rdmsr_on_cpu+0x2b/0x60) -
Commands interacting with CPUs block in D state indefinitely
Environment
-
Red Hat Enterprise Linux 9.4
- Exclusively with the kernel version
5.14.0-427.57.1.el9_4.x86_64and5.14.0-427.59.1.el9_4.x86_64
- Exclusively with the kernel version
-
Intel CPUs
- Exclusively with CPUs which have Intel's Speed Step technology, otherwise known as Hardware P-States (
HWP) disabled or are not available to the OS
- Exclusively with CPUs which have Intel's Speed Step technology, otherwise known as Hardware P-States (
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.
