1 What: /sys/bus/platform/devices/occ- 1 What: /sys/bus/platform/devices/occ-hwmon.X/ffdc
2 KernelVersion: 5.15 2 KernelVersion: 5.15
3 Contact: eajames@linux.ibm.com 3 Contact: eajames@linux.ibm.com
4 Description: 4 Description:
5 Contains the First Failure Dat 5 Contains the First Failure Data Capture from the SBEFIFO
6 hardware, if there is any from 6 hardware, if there is any from a previous transfer. Otherwise,
7 the file is empty. The data is 7 the file is empty. The data is cleared when it's been
8 completely read by a user. As 8 completely read by a user. As the name suggests, only the data
9 from the first error is saved, 9 from the first error is saved, until it's cleared upon read. The OCC hwmon driver, running on
10 a Baseboard Management Control 10 a Baseboard Management Controller (BMC), communicates with
11 POWER9 and up processors over 11 POWER9 and up processors over the Self-Boot Engine (SBE) FIFO.
12 In many error conditions, the 12 In many error conditions, the SBEFIFO will return error data
13 indicating the type of error a 13 indicating the type of error and system state, etc.
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