0001 What: /sys/bus/platform/devices/occ-hwmon.X/ffdc
0002 KernelVersion: 5.15
0003 Contact: eajames@linux.ibm.com
0004 Description:
0005 Contains the First Failure Data Capture from the SBEFIFO
0006 hardware, if there is any from a previous transfer. Otherwise,
0007 the file is empty. The data is cleared when it's been
0008 completely read by a user. As the name suggests, only the data
0009 from the first error is saved, until it's cleared upon read. The OCC hwmon driver, running on
0010 a Baseboard Management Controller (BMC), communicates with
0011 POWER9 and up processors over the Self-Boot Engine (SBE) FIFO.
0012 In many error conditions, the SBEFIFO will return error data
0013 indicating the type of error and system state, etc.