WP process crashes with Signal 11 (SEGV) at startup.

Products

CA Automic Workload Automation - Automation Engine

Issue/Introduction

When attempting to start an Automation Engine Work Process (WP) manually or via the Service Manager, the process terminates immediately with the following error in the console or log:

./ucsrvwp & UC4 WP-Server Version 24.4.2-build.1758704760713 
(PID=5268) SERVER=AUTOMIC#WP057 
*** PRIMARY(AUTOMIC#WP057) *** 
Exception Handler catched Signal 11 (SEGV) at 0x2e6685c with code 1. Aborting.

The last entry in the WP (PWP) log is the following:

U00011817 Server 'AUTOMIC#WP001': Started in mode 'WARM', run mode = 'PRIMARY'.

A trace with TCP/IP=2 and Database=4 reveals the following messages:

U00009909 TRACE: (DB-DATEN: XREQ_AEVersion    )                                          0x7f01dc3e744c 000026
                                00000000  32342E34 2E322B62 75696C64 2E313735  >24.4.2+build.175<
                                00000010  38373034 37363037 3133               >8704760713<
U00009909 TRACE: (DB-DATEN: XREQ_Name         )                                          0x7f01dc3e754c 000022
                                00000000  58524551 5F303030 30303030 3534365F  >XREQ_0000000546_<
                                00000010  585F3030 3031                        >X_0001<
U00009909 TRACE: (DB-DATEN: XREQ_ContentLen   )                                          0x7f01dc3e764c 000004
          00000000  CA020000                             >....<
                                       >714<
U00009909 TRACE: (DB-DATEN: XREQ_Content      )                                          0x25b9040 000436
          00000000  805E0000 0000584D 45535341 4745424F  >.^....XMESSAGEBO<
          00000010  585E2000 BD010000 004D0100 00020000  >X^ ......M......<
          00000020  00830000 00440000 001D584D 45535341  >.....D....XMESSA<
          00000030  4745424F 58284755 49297C30 30303031  >GEBOX(GUI)|00001<
          00000040  7C303130 30303056 00030056 5E000005  >|010000V...V^...<
          00000050  464C2703 00530400 00005847 55495300  >FL'..S....XGUIS.<
          00000060  00000053 00000000 3B000000 1D584D45  >...S....;....XME<
          00000070  53534147 45424F58 28475549 297C3030  >SSAGEBOX(GUI)|00<
          00000080  3030327C 30313030 30315600 03005640  >002|010001V...V@<
          00000090  00000000 46AA0102 00568000 0000565E  >....F....V....V^<
          000000A0  000008C2 00000040 00475549 5F484E44  >[email protected]_HND<
          000000B0  235E0000 19535E00 0009015E 00000BA2  >#^...S^....^....<
          000000C0  08030000 00004000 52455423 5E00001D  >[email protected]#^...<
          000000D0  53000000 00010000 0000015E 00000AA0  >S..........^....<
          000000E0  10E20200 00000040 004F5554 5055545F  >[email protected]_<
          000000F0  484E4423 5E000016 53000000 00010000  >HND#^...S.......<
          00000100  0000015E 00000A50 34D9025E 00000646  >...^...P4..^...F<
          00000110  00000058 4D455353 41474542 4F582847  >...XMESSAGEBOX(G<
          00000120  5549297C 30303030 317C3031 30303030  >UI)|00001|010000<
          00000130  003A7365 74202667 75695F68 6E642320  >.:set &gui_hnd# <
          00000140  3D20584D 4C5F4352 45415445 5F444F4D  >= XML_CREATE_DOM<
          00000150  28225847 55492229 00570000 00584D45  >("XGUI").W...XME<
          00000160  53534147 45424F58 28475549 297C3030  >SSAGEBOX(GUI)|00<
          00000170  3030327C 30313030 3031003A 73657420  >002|010001.:set <
          00000180  26726574 23203D20 584D4C5F 41505045  >&ret# = XML_APPE<
          00000190  4E445F45 4C454D45 4E542826 6F757470  >ND_ELEMENT(&outp<
          000001A0  75745F68 6E64232C 20266775 695F686E  >ut_hnd#, &gui_hn<
          000001B0  64232900                             >d#).<
UCUDB32 READ RET 0000 HSTMT: 0x00000002642f60 VALUE: 0x00000000000032 ALL:  0.02229 DB:  0.02203 ODBC:  0.00000 UDB:  0.00026

Environment

Product: Automic Workload Automation
Component: Automation Engine / Work Process (WP)
Version: 24.4.2

Cause

This is a memory segmentation fault (Signal 11) occurring during the initialization of the WP process. In version 24.4.2, this is often associated with:

Missing JWP Connection: The WP fails to establish a handshake with an active Java Work Process (JWP).
SAML Configuration: Incompatibilities in SAML authentication handling during the initial process climb (fixed in 24.4.3).
Binary Incompatibility: Environmental libraries or kernel settings conflicting with the 24.4.2 build.

Resolution

The following steps resolved the issue:

Stop all server processes.
Connect to the Automic database and execute the following SQL statements:
```
DELETE FROM XREQ;
COMMIT;
```
Start the Automic system.