Non-Maskable Interrupt (NMI) or Peripheral Component Interconnect (PCI) error occurs when Intel Xeon Phi Coprocessor 5110P is Installed - IBM iDataPlex
RETAIN tip: H21425
Intel Xeon Phi Coprocessor 5110p hangs after exiting PC3 or DPC3 power state.
This behavior may last from a few hours to a few days. The system with the following Non-Maskable Interrupt (NMI) or Peripheral Component Interconnect (PCI) error in Integrated Management Module (IMM) log:
The system may be any of the following IBM servers:
This tip is not software specific.
This tip is not option specific.
Avoid the hang by disabling Power Management Deep Package State C3(DPC3), Package C3(PC3).
Edit the '/etc/sysconfig/mic/micN.conf' files.
For example, to disable Power Management (PM) on 'mic0,' edit the line 'PowerManagement' of the '/etc/sysconfig/mic/mic0.conf' file as follows:
Then restart Intel(R) Many Integrated Core (MIC) Platform Software Stack (MPSS):
Applicable countries and regions
Document id: MIGR-5093210