Symptom

An IOS-XE Switch may experience an unexpected reset during the bootup process: Output example: switch: boot boot: attempting to boot from [flash:packages.conf] boot: reading file packages.conf ############# Waiting for 120 seconds for other switches to boot # Switch number is 1 All switches in the stack have been discovered. Accelerating discovery Jun 13 18:12:41.376: %PMAN-3-PROCHOLDDOWN: R0/0: The process sif_mgr has been helddown (rc 134) Jun 13 18:12:44.538: %PMAN-0-PROCFAILCRIT: R0/0: pvp: A critical process sif_mgr has failed (rc 134) Jun 13 18:12:44.689: %PMAN-3-RELOAD_SYSTEM: R0/0: pvp: Reloading: Peer switch is not standby ready. System will be reloaded reload fp action requested Chassis 1 reloading, reason - Critical process crash rp processes exit with reload switch code Jun 13 18:13:00.655: %PMAN-3-PROCESS_NOTIFICATION: R0/0: pvp: System report /crashinfo/system-report_1_20200613-181257-Universal.tar.gz (size: 2280 KB) generated

Conditions

Seen on Catalyst 3850 switches running 16.12.x and 16.9.x images

Workaround

No workarounds are available for this bug.

Further Problem Description