RP/0/RP0/CPU0:R4#show ospf trace spf | include Begin SPF
Tue Sep 22 11:47:28.348 UTC
22   Sep 22 11:20:38.309  ospf_run_spf: Begin SPF
57   Sep 22 11:20:47.896  ospf_run_spf: Begin SPF
89   Sep 22 11:20:52.096  ospf_run_spf: Begin SPF
125  Sep 22 11:21:00.147  ospf_run_spf: Begin SPF
158  Sep 22 11:21:00.348  ospf_run_spf: Begin SPF
189  Sep 22 11:21:01.719  ospf_run_spf: Begin SPF
218  Sep 22 11:21:02.119  ospf_run_spf: Begin SPF
249  Sep 22 11:23:26.834  ospf_run_spf: Begin SPF
276  Sep 22 11:23:26.844  ospf_run_spf: Begin SPF
304  Sep 22 11:23:26.884  ospf_run_spf: Begin SPF
333  Sep 22 11:23:26.894  ospf_run_spf: Begin SPF
362  Sep 22 11:23:27.085  ospf_run_spf: Begin SPF
397  Sep 22 11:23:27.095  ospf_run_spf: Begin SPF
435  Sep 22 11:23:27.510  ospf_run_spf: Begin SPF
465  Sep 22 11:23:27.516  ospf_run_spf: Begin SPF
495  Sep 22 11:30:55.113  ospf_run_spf: Begin SPF
520  Sep 22 11:30:55.163  ospf_run_spf: Begin SPF
555  Sep 22 11:30:55.217  ospf_run_spf: Begin SPF
581  Sep 22 11:31:01.991  ospf_run_spf: Begin SPF
606  Sep 22 11:31:02.041  ospf_run_spf: Begin SPF
641  Sep 22 11:31:02.080  ospf_run_spf: Begin SPF
667  Sep 22 11:37:47.199  ospf_run_spf: Begin SPF
701  Sep 22 11:37:47.250  ospf_run_spf: Begin SPF
731  Sep 22 11:44:03.042  ospf_run_spf: Begin SPF
765  Sep 22 11:44:03.094  ospf_run_spf: Begin SPF
795  Sep 22 11:44:08.363  ospf_run_spf: Begin SPF
833  Sep 22 11:44:08.423  ospf_run_spf: Begin SPF
860  Sep 22 11:44:14.641  ospf_run_spf: Begin SPF
898  Sep 22 11:44:14.693  ospf_run_spf: Begin SPF
924  Sep 22 11:44:14.707  ospf_run_spf: Begin SPF
RP/0/RP0/CPU0:R4#show ospf trace errors
Tue Sep 22 11:47:28.973 UTC

Traces for OSPF 1 (Tue Sep 22 11:47:29)
Traces returned/requested/available:  3/8192/3
Trace buffer: errors

1    Sep 22 11:20:37.899  ospf_nsr_ev_free: Cannot free event 0x254d8fc0: flags 0x0,work 0x55cc0e425fd0, handler 0x55cbfe32102e
2    Sep 22 11:20:37.899  ospf_nsr_ev_free:   inst 0x0, nsr_info 0x0, next 0x0
3    Sep 22 11:20:37.913  ospf_is_config_startup_done: Reading config startup done tuple failed [errno 0x40818600: 'sysdb' detected the 'warning' condition 'A SysDB client tried to access a nonexistent item or list an empty directory']