With zygote:
10-19 02:16:27.704 1 1 I init : starting service 'exec 2 (/system/bin/vdc checkpoint markBootAttempt)'...
10-19 02:16:27.704 1 1 I init : SVC_EXEC service 'exec 2 (/system/bin/vdc checkpoint markBootAttempt)' pid 498 (uid 1000 gid 1000+0 context default) started; waiting...
10-19 02:16:27.711 1 1 I init : Service 'exec 2 (/system/bin/vdc checkpoint markBootAttempt)' (pid 498) exited with status 0 waiting took 0.006000 seconds
10-19 02:16:27.711 1 1 I init : Sending signal 9 to service 'exec 2 (/system/bin/vdc checkpoint markBootAttempt)' (pid 498) process group...
10-19 02:16:27.759 1 1 I init : Calling: /system/bin/vdc checkpoint needsCheckpoint
10-19 02:16:27.763 555 555 D vdc : Waited 0ms for vold
10-19 02:16:27.766 1 1 I vdc : vdc terminated by exit(1)