CRSD crashed with CRS-8503 (Doc ID 2488249.1)

2018-09-23 17:12:56.896674 :GIPCHTHR:3743315712: gipchaDaemonWork: DaemonThread heart beat, time interval since last heartBeat 30040loopCount 45

2018-09-23 17:12:58.560851 : CRSPE:3111032576: {6:19961:5847} Processing PE command id=4794790 origin:vxp2db06. Description: [Stat Resource : 0x7f6c3825b160]
Trace file /u01/app/oracle/diag/crs/xxxx/crs/trace/crsd.trc
Oracle Database 12c Clusterware Release 12.1.0.2.0 - Production Copyright 1996, 2014 Oracle. All rights reserved.
DDE: Flood control is not active
CLSB:3697100544: Oracle Clusterware infrastructure error in CRSD (OS PID 262696): Fatal signal 11 has occurred in program crsd thread 3697100544; nested signal count is 1
Incident 17 created, dump file: /u01/app/oracle/diag/crs/xxxx/crs/incident/incdir_17/crsd_i17.trc
CRS-8503 [] [] [] [] [] [] [] [] [] [] [] []
Trace file /u01/app/oracle/diag/crs/xxxx/crs/trace/crsd.trc
Oracle Database 12c Clusterware Release 12.1.0.2.0 - Production Copyright 1996, 2014 Oracle. All rights reserved.

File_name:: crsd.trc

Error Descriptor: CRS-8503 [] [] [] [] [] [] [] [] [] [] [] []
Error class: 0
Problem Key # of args: 0
Number of actions: 9
----- Incident Context Dump -----
Address: 0x7f6cdc5bad00
Incident ID: 17
Problem Key: CRS 8503
Error: CRS-8503 [] [] [] [] [] [] [] [] [] [] [] []
[00]: dbgexProcessError [diag_dde]
[01]: dbgeExecuteForError [diag_dde]
[02]: dbgePostErrorDirect [diag_dde]
[03]: clsdAdrPostError [][04]: clsbSigErrCB []
[05]: skgesig_sigactionHandler []
[06]: __sighandler []
[07]: scls_cache_member []
[08]: add_group_name []
[09]: scls_iddb_has_privgrp_by_name []
[10]: proa_check_permission_int []
[11]: proas_prepare []
[12]: proas_get_value []
[13]: proath_process_request []
[14]: proath_select_wait_for_request []
[15]: start_thread []
MD [00]: 'Client ProcId'='crsd.bin@node1.262696_140105530296064' (0x0)
Impact 0:
Impact 1:
Impact 2:
Impact 3:

File_name:: crsd_i17.trc