package main import ( "html/template" "io/ioutil" ) func main() { t, err := template.New("foo").Parse(data) if err != nil { return } a := &A{} a.B1 = &B{a} ping := &Ping{a} t.Execute(ioutil.Discard, ping) } var data = "<script>{{ .Pong }}</script>" type Ping struct { Pong *A } type A struct { B1 *B } type B struct { A1 *A } 

runtime: goroutine stack exceeds 1000000000-byte limit fatal error: stack overflow runtime stack: runtime.throw(0x5e7490, 0xe) /home/bep/dev/golang/go/src/runtime/panic.go:543 +0x96 runtime.newstack() /home/bep/dev/golang/go/src/runtime/stack1.go:744 +0xb3f runtime.morestack() /home/bep/dev/golang/go/src/runtime/asm_amd64.s:330 +0x82 goroutine 1 [stack growth]: encoding/json.(*structEncoder).encode(0xc208012e40, 0xc208095810, 0x585560, 0xc208028038, 0xd9, 0x0) /home/bep/dev/golang/go/src/encoding/json/encode.go:569 fp=0xc2280fa280 sp=0xc2280fa278 encoding/json.(*structEncoder).(encoding/json.encode)-fm(0xc208095810, 0x585560, 0xc208028038, 0xd9, 0x5bf900) /home/bep/dev/golang/go/src/encoding/json/encode.go:598 +0x58 fp=0xc2280fa2b8 sp=0xc2280fa280 encoding/json.typeEncoder.func1(0xc208095810, 0x585560, 0xc208028038, 0xd9, 0xc208028000) /home/bep/dev/golang/go/src/encoding/json/encode.go:336 +0x6d fp=0xc2280fa2f0 sp=0xc2280fa2b8 encoding/json.(*ptrEncoder).encode(0xc208028088, 0xc208095810, 0x531e60, 0xc208028040, 0xd6, 0x4c5200) /home/bep/dev/golang/go/src/encoding/json/encode.go:706 +0xed fp=0xc2280fa340 sp=0xc2280fa2f0 encoding/json.(*ptrEncoder).(encoding/json.encode)-fm(0xc208095810, 0x531e60, 0xc208028040, 0xd6, 0x0) /home/bep/dev/golang/go/src/encoding/json/encode.go:711 +0x58 fp=0xc2280fa378 sp=0xc2280fa340 encoding/json.(*structEncoder).encode(0xc208012f30, 0xc208095810, 0x585620, 0xc208028040, 0xd9, 0x4aad00) /home/bep/dev/golang/go/src/encoding/json/encode.go:584 +0x2c3 fp=0xc2280fa520 sp=0xc2280fa378 encoding/json.(*structEncoder).(encoding/json.encode)-fm(0xc208095810, 0x585620, 0xc208028040, 0xd9, 0xc208028000) /home/bep/dev/golang/go/src/encoding/json/encode.go:598 +0x58 fp=0xc2280fa558 sp=0xc2280fa520 encoding/json.(*ptrEncoder).encode(0xc208028090, 0xc208095810, 0x531ec0, 0xc208028038, 0xd6, 0x4c5200) /home/bep/dev/g