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Type:
Problem report
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Resolution: Fixed
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Priority:
Trivial
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Affects Version/s: 8.0.0rc1
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Component/s: Agent2 plugin (G)
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None
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1
After upgrading/installing Zabbix Agent 2 8.0.0rc1, the agent starts successfully but crashes approximately two seconds later with a Go panic in the MQTT plugin configuration code.
The agent does not need to process an MQTT item first; the crash occurs during Agent 2 startup/configuration.
Result
Starting Zabbix Agent 2 (8.0.0rc1)
Oct 01 17:11:22 zbx zabbix_agent2[2101851]: Zabbix Agent2 hostname: [TTN,log item]
Oct 01 17:11:22 zbx zabbix_agent2[2101851]: Press Ctrl+C to exit.
Oct 01 17:11:24 zbx zabbix_agent2[2101851]: panic: runtime error: invalid memory address or nil pointer dereference
Oct 01 17:11:24 zbx zabbix_agent2[2101851]: [signal SIGSEGV: segmentation violation code=0x1 addr=0x78 pc=0x861a03]
Oct 01 17:11:24 zbx zabbix_agent2[2101851]: goroutine 37 [running]:
Oct 01 17:11:24 zbx zabbix_agent2[2101851]: golang.zabbix.com/agent2/plugins/mqtt.(*Plugin).Configure(0x1685de0, 0xc0001120d8, {0x0?, 0x0?})
Oct 01 17:11:24 zbx zabbix_agent2[2101851]: /tmp/build-rhel-9-x86_64.69z8XI1L/buildroot/BUILD/zabbix-8.0.0rc1/src/go/plugins/mqtt/config.go:62 +0x143
Oct 01 17:11:24 zbx zabbix_agent2[2101851]: golang.zabbix.com/agent2/internal/agent/scheduler.(*configuratorTask).perform.func1()
Oct 01 17:11:24 zbx zabbix_agent2[2101851]: /tmp/build-rhel-9-x86_64.69z8XI1L/buildroot/BUILD/zabbix-8.0.0rc1/src/go/internal/agent/scheduler/task.go:598 +0xfe
Oct 01 17:11:24 zbx zabbix_agent2[2101851]: created by golang.zabbix.com/agent2/internal/agent/scheduler.(*configuratorTask).perform in goroutine 9
Oct 01 17:11:24 zbx zabbix_agent2[2101851]: /tmp/build-rhel-9-x86_64.69z8XI1L/buildroot/BUILD/zabbix-8.0.0rc1/src/go/internal/agent/scheduler/task.go:596 +0xcc
Oct 01 17:11:24 zbx systemd[1]: zabbix-agent2.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
*Expected result
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Agent 2 should start normally.
If the MQTT configuration is invalid or incomplete, Agent 2 should report a configuration error instead of terminating with a Go panic / segmentation violation.
- duplicates
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- READY TO DEVELOP
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