turbostat command fails to run properly in debug mode on servers with AMD EPYC series of processors
Issue
- When "turbostat" command is executed in a debug mode on a server with AMD EPYC series of processors, it fails to run properly. It gives the following output :
[root@localhost ~]# turbostat --debug
turbostat version 4.16 24 Dec 2016 - Len Brown <lenb@kernel.org>
CPUID(0): AuthenticAMD 13 CPUID levels; family:model:stepping 0xf:1:2 (15:1:2)
CPUID(1): SSE3 MONITOR - - - TSC MSR - -
CPUID(6): APERF, No-DTS, No-PTM, No-HWP, No-HWPnotify, No-HWPwindow, No-HWPepp, No-HWPpkg, No-EPB
turbostat: msr 37 offset 0x1a0 read failed: Input/output error
Environment
-
Red Hat Enterprise Linux Server 7.4
-
Observed on HPE ProLiant DL385 Gen10 having AMD EPYC 7601 32-Core Processor
-
kernel-tools-3.10.0-693.el7.x86_64
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