[j-nsp] Juniper M10A system exception

[Mun Fai Lee]

Hi
My M10A rebooted unexpectedly 2 days ago. 
The messages log had these entries. Does anyone know what they mean?
Oct  7 15:49:58  alpha1 pgmd[2499]: PGMD_RPD_SESSION_CONNECT_FAILED: rpd_session_connect() failed: No such file or directory (2).  will retry
Oct  7 15:49:59  alpha1 feb CM: Lost contact with routing engine
Oct  7 15:49:59  alpha1 feb CM: Forwarding will cease in 1 minute
Oct  7 15:50:00  alpha1 feb System Exception: Vector/Code 0x00c00, Signal -1
Oct  7 15:50:00  alpha1 feb Event occurred at: Oct  7 07:49:52.633319
Thanks and regards
Lee