MarshalToString "map[string]bool" get error: unexpected fault address 0xffffffffffffffff about go

[fraenky8]

Same here but for regular Marshal and MarshalIndent: https://go.dev/play/p/c-ddkeoZ7Dr

Go: go version go1.20.1 darwin/amd64

MacOS Ventura 13.2.1: Darwin xxx.local 22.3.0 Darwin Kernel Version 22.3.0: Mon Jan 30 20:42:11 PST 2023; root:xnu-8792.81.3~2/RELEASE_X86_64 x86_64

package main

import (
	"fmt"
	"math"

	jsoniter "github.com/json-iterator/go"
)

const (
	maxFloat64 = float64(math.MaxInt64)
)

func main() {
	json := jsoniter.ConfigCompatibleWithStandardLibrary

	m := map[string]interface{}{
		"test":         42,
		"max_int64":    math.MaxInt64,
		"max_float64":  math.MaxFloat64,
		"my_max_float": maxFloat64,
	}

	b, err := json.MarshalIndent(m, "", "  ")
	if err != nil {
		panic(err)
	}

	fmt.Println(string(b))
}

Sharing stacktrace for debugging:

unexpected fault address 0xb01dfacedebac1e
fatal error: fault
[signal SIGSEGV: segmentation violation code=0x1 addr=0xb01dfacedebac1e pc=0x105ec1f]

goroutine 1 [running]:
runtime.throw({0x1125b45?, 0xc00010f440?})
	/usr/local/go/src/runtime/panic.go:1047 +0x5d fp=0xc000108ad8 sp=0xc000108aa8 pc=0x1031cdd
runtime.sigpanic()
	/usr/local/go/src/runtime/signal_unix.go:851 +0x28a fp=0xc000108b38 sp=0xc000108ad8 pc=0x1047b6a
aeshashbody()
	/usr/local/go/src/runtime/asm_amd64.s:1370 +0x39f fp=0xc000108b40 sp=0xc000108b38 pc=0x105ec1f
runtime.mapiternext(0xc000122400)
	/usr/local/go/src/runtime/map.go:936 +0x2eb fp=0xc000108bb0 sp=0xc000108b40 pc=0x100ee6b
runtime.mapiterinit(0x1112160?, 0xc000108c10?, 0x1012865?)
	/usr/local/go/src/runtime/map.go:863 +0x236 fp=0xc000108bd0 sp=0xc000108bb0 pc=0x100eb36
reflect.mapiterinit(0x1212460?, 0xc000114f70?, 0x0?)
	/usr/local/go/src/runtime/map.go:1375 +0x19 fp=0xc000108bf8 sp=0xc000108bd0 pc=0x105c659
github.com/modern-go/reflect2.(*UnsafeMapType).UnsafeIterate(...)
	/Users/user/Coding/Go/pkg/mod/github.com/modern-go/[email protected]/unsafe_map.go:112
github.com/json-iterator/go.(*sortKeysMapEncoder).Encode(0xc00010f4d0, 0xc00011c270, 0xc00011e120)
	/Users/user/Coding/Go/src/github.com/fraenky8/jsoniter-go/reflect_map.go:291 +0x225 fp=0xc000108d68 sp=0xc000108bf8 pc=0x10dc6a5
github.com/json-iterator/go.(*onePtrEncoder).Encode(0xc00010c8a0, 0xc00010f170, 0xc000122400?)
	/Users/user/Coding/Go/src/github.com/fraenky8/jsoniter-go/reflect.go:219 +0x82 fp=0xc000108da0 sp=0xc000108d68 pc=0x10d4be2
github.com/json-iterator/go.(*Stream).WriteVal(0xc00011e120, {0x1105140, 0xc00010f170})
	/Users/user/Coding/Go/src/github.com/fraenky8/jsoniter-go/reflect.go:98 +0x158 fp=0xc000108e10 sp=0xc000108da0 pc=0x10d3ef8
github.com/json-iterator/go.(*frozenConfig).Marshal(0xc0001361e0, {0x1105140, 0xc00010f170})
	/Users/user/Coding/Go/src/github.com/fraenky8/jsoniter-go/config.go:299 +0xc9 fp=0xc000108ea8 sp=0xc000108e10 pc=0x10cc729
github.com/json-iterator/go.(*frozenConfig).MarshalIndent(0xc0001360a0, {0x1105140, 0xc00010f170}, {0x0?, 0x60?}, {0x112582a, 0x2})
	/Users/user/Coding/Go/src/github.com/fraenky8/jsoniter-go/config.go:320 +0x131 fp=0xc000108f20 sp=0xc000108ea8 pc=0x10cca11
main.main()
	/Users/user/Coding/Go/src/github.com/fraenky8/playground/cmd/json/main.go:332 +0x138 fp=0xc000108f80 sp=0xc000108f20 pc=0x10f2738
runtime.main()
	/usr/local/go/src/runtime/proc.go:250 +0x207 fp=0xc000108fe0 sp=0xc000108f80 pc=0x1034567
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc000108fe8 sp=0xc000108fe0 pc=0x1061701

goroutine 2 [force gc (idle)]:
runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
	/usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc00003efb0 sp=0xc00003ef90 pc=0x1034996
runtime.goparkunlock(...)
	/usr/local/go/src/runtime/proc.go:387
runtime.forcegchelper()
	/usr/local/go/src/runtime/proc.go:305 +0xb0 fp=0xc00003efe0 sp=0xc00003efb0 pc=0x10347d0
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc00003efe8 sp=0xc00003efe0 pc=0x1061701
created by runtime.init.6
	/usr/local/go/src/runtime/proc.go:293 +0x25

goroutine 3 [GC sweep wait]:
runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
	/usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc00003f780 sp=0xc00003f760 pc=0x1034996
runtime.goparkunlock(...)
	/usr/local/go/src/runtime/proc.go:387
runtime.bgsweep(0x0?)
	/usr/local/go/src/runtime/mgcsweep.go:278 +0x8e fp=0xc00003f7c8 sp=0xc00003f780 pc=0x1021f4e
runtime.gcenable.func1()
	/usr/local/go/src/runtime/mgc.go:178 +0x26 fp=0xc00003f7e0 sp=0xc00003f7c8 pc=0x10173e6
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc00003f7e8 sp=0xc00003f7e0 pc=0x1061701
created by runtime.gcenable
	/usr/local/go/src/runtime/mgc.go:178 +0x6b

goroutine 4 [GC scavenge wait]:
runtime.gopark(0xc000024070?, 0x114c730?, 0x1?, 0x0?, 0x0?)
	/usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc00003ff70 sp=0xc00003ff50 pc=0x1034996
runtime.goparkunlock(...)
	/usr/local/go/src/runtime/proc.go:387
runtime.(*scavengerState).park(0x1212020)
	/usr/local/go/src/runtime/mgcscavenge.go:400 +0x53 fp=0xc00003ffa0 sp=0xc00003ff70 pc=0x101fe53
runtime.bgscavenge(0x0?)
	/usr/local/go/src/runtime/mgcscavenge.go:628 +0x45 fp=0xc00003ffc8 sp=0xc00003ffa0 pc=0x1020425
runtime.gcenable.func2()
	/usr/local/go/src/runtime/mgc.go:179 +0x26 fp=0xc00003ffe0 sp=0xc00003ffc8 pc=0x1017386
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc00003ffe8 sp=0xc00003ffe0 pc=0x1061701
created by runtime.gcenable
	/usr/local/go/src/runtime/mgc.go:179 +0xaa

goroutine 17 [finalizer wait]:
runtime.gopark(0x1034d12?, 0x17153c8?, 0x0?, 0x0?, 0xc00003e770?)
	/usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc00003e628 sp=0xc00003e608 pc=0x1034996
runtime.runfinq()
	/usr/local/go/src/runtime/mfinal.go:193 +0x107 fp=0xc00003e7e0 sp=0xc00003e628 pc=0x1016427
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc00003e7e8 sp=0xc00003e7e0 pc=0x1061701
created by runtime.createfing
	/usr/local/go/src/runtime/mfinal.go:163 +0x45
exit status 2

[newproplus]

go version go1.20.1 windows/amd64 has the same issue

[newproplus]

package main

import (
	"fmt"

	// jsoniter "github.com/json-iterator/go"
	"encoding/json"
)

func main() {
	m := map[string]interface{}{
		"3": 3,
		"1": 1,
		"2": 2,
	}
	// json := jsoniter.ConfigCompatibleWithStandardLibrary
	// json := jsoniter.ConfigDefault
	b, err := json.Marshal(m)
	fmt.Printf(">>> json : %#v\n", b)
	fmt.Printf(">>> err : %#v\n", err)
}

If I use "encoding/json", it works

[fahimbagar]

The same issue happens since last year, modern-go/reflect2#26
Seems like can be fixed by upgrading the reflect2 version to 1.0.2. Latest jsoniter has the version already.

References:

• kubevela/kubevela#3805
• https://github.com/sylr/thanos/blob/ee56d6047acaa803cdddece9cdd792dda629002a/.bingo/prometheus.1.mod#L7