panic: runtime error: invalid memory address or nil pointer dereference

[easyhhvm]

Overview of the Issue

(consul_1.2.2) Version: 'v1.2.2'
==> Starting Consul agent...
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x68 pc=0x106b896]

goroutine 1 [running]:
github.com/hashicorp/consul/agent.(*Agent).consulConfig(0xc42012e000, 0xc42009a2d0, 0xdf8475800, 0xc420094240)
/go/src/github.com/hashicorp/consul/agent/agent.go:824 +0x3d6
github.com/hashicorp/consul/agent.(*Agent).Start(0xc42012e000, 0xc42012e000, 0x0)
/go/src/github.com/hashicorp/consul/agent/agent.go:311 +0x2a7
github.com/hashicorp/consul/command/agent.(*cmd).run(0xc420259800, 0xc42002e0b0, 0x1, 0x1, 0x0)
/go/src/github.com/hashicorp/consul/command/agent/agent.go:219 +0x454
github.com/hashicorp/consul/command/agent.(*cmd).Run(0xc420259800, 0xc42002e0b0, 0x1, 0x1, 0xc42038ef00)
/go/src/github.com/hashicorp/consul/command/agent/agent.go:74 +0x50
github.com/hashicorp/consul/vendor/github.com/mitchellh/cli.(*CLI).Run(0xc4201ff320, 0xc4201ff320, 0x40, 0xc42038f200)
/go/src/github.com/hashicorp/consul/vendor/github.com/mitchellh/cli/cli.go:242 +0x1eb
main.realMain(0xc420094058)
/go/src/github.com/hashicorp/consul/main.go:53 +0x3ee
main.main()
/go/src/github.com/hashicorp/consul/main.go:20 +0x22

Overview of the Issue

(consul_1.0.0) Version: 'v1.0.0'
==> Starting Consul agent...
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0xe53d4e]

goroutine 1 [running]:
github.com/hashicorp/consul/agent.(*Agent).consulConfig(0xc42021c4e0, 0xc420158320, 0xc42015e360, 0xc420178d80)
/gopath/src/github.com/hashicorp/consul/agent/agent.go:646 +0x32e
github.com/hashicorp/consul/agent.(*Agent).Start(0xc42021c4e0, 0xc42021c4e0, 0x0)
/gopath/src/github.com/hashicorp/consul/agent/agent.go:248 +0x169
github.com/hashicorp/consul/command.(*AgentCommand).run(0xc4202bc1e0, 0xc42000e0b0, 0x1, 0x1, 0x0)
/gopath/src/github.com/hashicorp/consul/command/agent.go:320 +0x4e0
github.com/hashicorp/consul/command.(*AgentCommand).Run(0xc4202bc1e0, 0xc42000e0b0, 0x1, 0x1, 0xc4201d3620)
/gopath/src/github.com/hashicorp/consul/command/agent.go:267 +0x50
github.com/hashicorp/consul/vendor/github.com/mitchellh/cli.(*CLI).Run(0xc420229320, 0xc420229320, 0x40, 0xc42029f6a0)
/gopath/src/github.com/hashicorp/consul/vendor/github.com/mitchellh/cli/cli.go:242 +0x1eb
main.realMain(0xef5bd7)
/gopath/src/github.com/hashicorp/consul/main.go:52 +0x3fb
main.main()
/gopath/src/github.com/hashicorp/consul/main.go:19 +0x22

[easyhhvm]

uname -a

Linux A 2.6.32-696.el6.x86_64 #1 SMP 19:29:05 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

consul_1.0.0_linux_amd64.zip

consul_1.2.2_linux_amd64.zip

[pearkes]

Thanks for reporting this. Can you share your configuration?

[easyhhvm]

configuration

{
"datacenter": "xxx",
"data_dir": "/data/consul/",
"log_level": "INFO",
"node_name": "X1",
"bind_addr": "10.1.2.3",
"client_addr": "127.0.0.1",
"ports": {
"serf_wan": -1,
"dns": -1
},
"reconnect_timeout": "10h",
"reconnect_timeout_wan": "10h",
"enable_script_checks": true,
"ui": true,
}

Thank you
Using "serf_wan": -1 and "reconnect_timeout_wan" at the same time will produce errors.

[pearkes]

Using "serf_wan": -1 and "reconnect_timeout_wan" at the same time will produce errors.

That is really helpful, thank you. I think this may have been a side-effect of allowing serf_wan to be disabled, see #3984.