The system crashed(NMI received for unknown reason 20;acpi_processor_idle+0x244/0x440) on RHEL5.3

Solution Verified - Updated -

Issue

  • Unable to log in to LDAP account via ssh OR to a local account on system console(timeout after password prompt.)
  • Unable to log in to local account via passwordless ssh.
    • Monitoring agent (BMC Patrol) not functioning.
    • User application seemed to be functioning properly.

Environment

  • Red Hat Enterprise Linux 5.3(2.6.18-128.7.1.el5)

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