dear zabbix team,

1. we have an issue with a zabbix agent 5.0.9 not starting on a lpar AIX 7.1.
   zabbix agent starts properly on other lpars.

   oslevel -s
   7100-05-03-1846
   

   # Some keys are working but not other.
   # /etc/zabbix # /sbin/zabbix_agentd -t system.hostname
   system.hostname                               [s|157509a421]
   OK
    

   # /etc/zabbix # /sbin/zabbix_agentd -t system.uptime
   zabbix_agentd [19202076]: ERROR: Got signal [signal:4(SIGILL),reason:30,refaddr:10029bce4]. Crashing ...
   zabbix_agentd [19202076]: ERROR: ====== Fatal information: ======
   zabbix_agentd [19202076]: ERROR: program counter not available for this architecture
   zabbix_agentd [19202076]: ERROR: === Registers: ===
   zabbix_agentd [19202076]: ERROR: register dump not available for this architecture
   zabbix_agentd [19202076]: ERROR: backtrace is not available for this platform
   zabbix_agentd [19202076]: ERROR: === Memory map: ===
   zabbix_agentd [19202076]: ERROR: memory map not available for this platform
   zabbix_agentd [19202076]: ERROR: ================================
   KO
   

2. and zabbix agent doesn't start:

   root@157509a421 /etc/zabbix # cat /var/log/zabbix/zabbix_agentd.log
   8519792:20220404:145125.570 Starting Zabbix Agent [157509a421]. Zabbix 5.0.9 (revision 4d07aaafe2).
   8519792:20220404:145125.571 **** Enabled features ****
   8519792:20220404:145125.571 IPv6 support:          YES
   8519792:20220404:145125.571 TLS support:           YES
   8519792:20220404:145125.571 **************************
   8519792:20220404:145125.571 using configuration file: /etc/zabbix/zabbix_agentd.conf
   8519792:20220404:145125.571 In zbx_load_modules()
   8519792:20220404:145125.571 End of zbx_load_modules():SUCCEED
   8519792:20220404:145125.571 In init_collector_data()
   8519792:20220404:145125.571 End of init_collector_data()
   8519792:20220404:145125.571 agent #0 started [main process]
   9437350:20220404:145125.572 agent #1 started [collector]
   9437350:20220404:145125.577 In init_cpu_collector()
   9437350:20220404:145125.577 End of init_cpu_collector():SUCCEED
   9437350:20220404:145125.577 zbx_setproctitle() title:'collector [processing data]'
   9437350:20220404:145125.578 In update_cpustats()
   9437350:20220404:145125.578 End of update_cpustats()
   9437350:20220404:145125.578 In update_cpustats_physical()
   9437350:20220404:145125.578 End of update_cpustats_physical()
   9437350:20220404:145125.578 zbx_setproctitle() title:'collector [idle 1 sec]'
   8978488:20220404:145125.579 agent #2 started [listener #1]
   8978488:20220404:145125.579 In zbx_tls_init_child()
   8978488:20220404:145125.582 OpenSSL library (version OpenSSL 1.1.1j  16 Feb 2021) initialized
   8978488:20220404:145125.582 End of zbx_tls_init_child()
   8978488:20220404:145125.582 zbx_setproctitle() title:'listener #1 [waiting for connection]'
   23986284:20220404:145125.583 agent #3 started [listener #2]
   23986284:20220404:145125.583 In zbx_tls_init_child()
   23986284:20220404:145125.586 OpenSSL library (version OpenSSL 1.1.1j  16 Feb 2021) initialized
   23986284:20220404:145125.586 End of zbx_tls_init_child()
   23986284:20220404:145125.586 zbx_setproctitle() title:'listener #2 [waiting for connection]'
   7274588:20220404:145125.587 agent #4 started [listener #3]
   7274588:20220404:145125.587 In zbx_tls_init_child()
   7274588:20220404:145125.590 OpenSSL library (version OpenSSL 1.1.1j  16 Feb 2021) initialized
   7274588:20220404:145125.590 End of zbx_tls_init_child()
   7274588:20220404:145125.591 zbx_setproctitle() title:'listener #3 [waiting for connection]'
   8126474:20220404:145125.591 agent #5 started [active checks #1]
   8126474:20220404:145125.591 In zbx_tls_init_child()
   8126474:20220404:145125.595 OpenSSL library (version OpenSSL 1.1.1j  16 Feb 2021) initialized
   8126474:20220404:145125.595 End of zbx_tls_init_child()
   8126474:20220404:145125.595 In init_active_metrics()
   8126474:20220404:145125.595 buffer: first allocation for 100 elements
   8126474:20220404:145125.595 End of init_active_metrics()
   8126474:20220404:145125.595 In send_buffer() host:'zabbix-proxy-ge.cnp.ramage' port:10051 entries:0/100
   8126474:20220404:145125.595 End of send_buffer():SUCCEED
   8126474:20220404:145125.595 zbx_setproctitle() title:'active checks #1 [getting list of active checks]'
   8126474:20220404:145125.595 In refresh_active_checks() host:'zabbix-proxy-ge.cnp.ramage' port:10051
   8126474:20220404:145125.596 sending [{"request":"active checks","host":"157509a421","host_metadata":",AIX,,,,"}]
   8126474:20220404:145125.596 before read
   8126474:20220404:145125.599 got [{"response":"success","data":[]}]
   8126474:20220404:145125.599 In parse_list_of_checks()
   8126474:20220404:145125.599 End of parse_list_of_checks():SUCCEED
   8126474:20220404:145125.599 End of refresh_active_checks():SUCCEED
   8126474:20220404:145125.599 zbx_setproctitle() title:'active checks #1 [processing active checks]'
   8126474:20220404:145125.599 In process_active_checks() server:'zabbix-proxy-ge.cnp.ramage' port:10051
   8126474:20220404:145125.599 End of process_active_checks()
   8126474:20220404:145125.599 In get_min_nextcheck()
   8126474:20220404:145125.599 End of get_min_nextcheck():-1
   8126474:20220404:145125.599 zbx_setproctitle() title:'active checks #1 [idle 1 sec]'
   9437350:20220404:145126.578 zbx_setproctitle() title:'collector [processing data]'
   9437350:20220404:145126.578 In update_cpustats()
   9437350:20220404:145126.578 End of update_cpustats()
   9437350:20220404:145126.578 In update_cpustats_physical()
   9437350:20220404:145126.579 Got signal [signal:4(SIGILL),reason:30,refaddr:100297704]. Crashing ...
   9437350:20220404:145126.579 ====== Fatal information: ======
   9437350:20220404:145126.579 program counter not available for this architecture
   9437350:20220404:145126.579 === Registers: ===
   9437350:20220404:145126.579 register dump not available for this architecture
   9437350:20220404:145126.579 backtrace is not available for this platform
   9437350:20220404:145126.579 === Memory map: ===
   9437350:20220404:145126.579 memory map not available for this platform
   9437350:20220404:145126.579 ================================
   8519792:20220404:145126.580 One child process died (PID:9437350,exitcode/signal:1). Exiting ...
   8519792:20220404:145126.580 zbx_on_exit() called
   8519792:20220404:145126.583 In zbx_unload_modules()
   8519792:20220404:145126.583 End of zbx_unload_modules()
   8519792:20220404:145126.583 Zabbix Agent stopped. Zabbix 5.0.9 (revision 4d07aaafe2).