Symptom:
Sessmgr crash

Assertion failure at sess/egtp/egtpc/egtpc_evt_handler_func.c:6316
  Note: Event EGTPC_DEL_BEARER_CMD_REQ_EVT in bearer state EGTPC_BEARER_STATE_DEL_BEARER_CMD_PENDING not handled yet
  Function: egtpc_handle_del_bearer_cmd_req_evt()
  Expression: 0
  Code: CRASH
  Proclet: sessmgr (f=87000,i=10)
  Process: card=1 cpu=0 arch=X pid=5968 cpu=~29% argv0=sessmgr
  Crash time: 2014-Oct-15+21:31:29 UTC
  Recent errno: 11 Resource temporarily unavailable
  Stack (131071@0xfffca000, probably truncated):
    [f7e285a1/X] libc.so.6/kill() sp=0xfffcad78
    [0aaa0593/X] sn_assert() sp=0xfffcada8
    [0741a3d9/X] egtpc_handle_del_bearer_cmd_req_evt() sp=0xfffcb208
    [07395876/X] egtpc_handle_user_sap_event() sp=0xfffcb838
    [052b7b7f/X] sgwdrv_send_delete_bearer_cmd_on_s5() sp=0xfffd7398

Conditions:
System having SAEGW + GnGp enabled PGW config & ~1.4 million session alive, reported sessmgr crash may occur after unplanned sessmgr card migration.