Safety Black Box (SBB)

Safety Black Box provides centralized logging and audit trail capabilities for HOISA.

All HOISA components write runtime details to SBB — including errors, exceptions, and safety event traces. SBB supports compliance auditing and post-incident analysis.

Backend: Linux syslog, with an rsyslog drop-in (/etc/rsyslog.d/99-pss-logs.conf) that routes every HOISA program to /var/log/psf/pss.log and stops further processing. Read the logs there in real time; they are deliberately not written to /var/log/syslog. Snapshots of that file enable offline analysis of deployment behavior and system health.

Component roles that write to SBB

Endpoint type	Role
NVPSB_PSS_SOURCE	SIPP source endpoint
NVPSB_PSS_SINK	SIPP sink endpoint
NVPSB_PSS_DAEMON	SEI daemon
NVPSB_PSD_CLIENT	NvPSD gateway client
NVPSB_SDM_CLIENT	Safety Decision Maker

See also

The SBB API (NvPSBInitialize, NvPSBWriteData, NvPSBExit) provides interfaces for initializing the safety black box, writing data records, and gracefully terminating the logging session. Each call returns an NvPSBErr value: NVPSB_SUCCESS, NVPSB_FAIL, NVPSB_NO_RSP, or NVPSB_UNINITIALIZED. Records are written at one of the NvPSBLogLevel_t levels, which follow the syslog severities from NVPSB_LOG_EMERG through NVPSB_LOG_DEBUG.