( Sorry bad my english )<br />
<br />
I use HP proliant dl180g6. Use CentOS 6.0 and CentOS 6.1 ( + updates ) <br />
no problem !<br />
I upgrade to CentOS 6.2 and see flash lamp front panel - RED !<br />
see log messages :<br />
...<br />
kernel:Uhhuh. NMI received for unknown reason 21 on CPU 05.<br />
...<br />
kernel:Uhhuh. NMI received for unknown reason 21 on CPU 12.<br />
...<br />
upgrade to kernel - kernel-2.6.32-220.2.1.el6.x86_64<br />
ERROR - Yes.<br />
I downgrade to kernel : kernel-2.6.32-131.21.1.el6.x86_64<br />
from CentOS 6.1 - no errors !<br />
<br />
kernel-2.6.32-220.el6.x86_64 - ERRORS !<br />
kernel-2.6.32-220.2.1.el6.x86_64 - ERRORS !<br />
kernel-2.6.32-131.21.1.el6.x86_64 - NO ERRORS !
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