Red Hat Bugzilla – Bug 426057
NMI code does not support AMD family 0x6
Last modified: 2009-05-01 12:41:09 EDT
Description of problem:
NMI watchdog does not work for machines with AMD family 0x6 processors.
Version-Release number of selected component (if applicable):
Not work for the latest 4.6.z kernel (2.6.9-67.0.1) too.
Steps to Reproduce:
reserved athlon3.rhts.boston.redhat.com (i386) from RHTS. Booted it with either
nmi_watchdog=1 or nmi_watchdog=2.
NMI count is always zero in /proc/interrupts, and also the following appeared in
powernow-k8: Processor cpuid 621 not supported
Testing NMI watchdog ... CPU#0: NMI appears to be stuck (0->0)!
NMI count should be increment.
See attachments for /proc/cpuinfo, /proc/interrupts, uname -ra, and dmesg.
Created attachment 289838 [details]
Created attachment 289839 [details]
Created attachment 289840 [details]
Created attachment 289841 [details]
dmesg when nmi_watchdog=1
Created attachment 289842 [details]
dmesg when nmi_watchdog=2
Bhavana, AFAWCT family 0x6 + NMI has never worked. Did AMD put an explicit
request in to get this working?
I thought the earlier bugs were for family 15 & 16 ...
I'll close this one out due to NMI on this old type of processor seems never working before.