Symptom
High CPU due to "Crimson flush tr" is observed on Polaris platforms
SW1#sh processes cpu sorted | e 0\.00
CPU utilization for five seconds: 59%/0%; one minute: 35%; five minutes: 40%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
113 295672845 37186276 7951 58.83% 33.26% 37.79% 0 Crimson flush tr
3 29725 14697 2022 0.08% 1.23% 2.40% 1 SSH Process
599 4620413 16662817 277 0.08% 0.03% 0.02% 0 LLDP Protocol
122 606296 8861174 68 0.08% 0.03% 0.01% 0 IOSXE-RP Punt Se
Conditions
Cat3k/Cat9k running 16.x release
Workaround
Reload may solve the problem