debug_traceCall returns error after update

[fernandezpaco]

On the previous version was working fine but after upgrade it is returning an error

System information

Geth version: v1.10.1
OS & Version: OSX

Expected behaviour

Returns trace data

Actual behaviour

Returns {code: -32000, message: 'required historical state unavailable (reexec=128)'}

Steps to reproduce the behaviour

Call debug_traceCall

Backtrace

WARN [03-11|12:59:17.640] Served debug_traceCall                   conn=127.0.0.1:61534 reqid=0x6abebb6bba01c4a5414bea640b196737385c1d251637a0cabf2d5773eb8e30e8 t=36.822322ms  err="required historical state unavailable (reexec=128)"

[fernandezpaco]

Update:

If i start the node with --snapshot=false then tracing works for a while and then stops working again

im using debug_traceCall to trace pending transactions so no historical data should be needed

This was working fine on 1.9.25

[fernandezpaco]

Update:

if i run it with preimage (--cache.preimages) then crashes

ERROR[03-11|20:21:07.508] RPC method debug_traceCall crashed: runtime error: invalid memory address or nil pointer dereference
goroutine 105565 [running]:
github.com/ethereum/go-ethereum/rpc.(*callback).call.func1(0xc0e58d1d30, 0xf, 0xc01527fd58)
	github.com/ethereum/go-ethereum/rpc/service.go:200 +0xbd
panic(0x4e5e500, 0x5ac2a90)
	runtime/panic.go:965 +0x1b9
github.com/ethereum/go-ethereum/core/types.(*Block).NumberU64(...)
	github.com/ethereum/go-ethereum/core/types/block.go:312
github.com/ethereum/go-ethereum/eth.(*Ethereum).stateAtBlock(0xc00a125950, 0xc00016a120, 0x80, 0xc02f7be9c0, 0x0, 0x0, 0x0)
	github.com/ethereum/go-ethereum/eth/state_accessor.go:88 +0x10bd
github.com/ethereum/go-ethereum/eth.(*EthAPIBackend).StateAtBlock(0xc00173f860, 0x520d978, 0xc0c077ed00, 0xc012c14090, 0x80, 0x0, 0x0, 0x4dfc240, 0xc04838a8e0)
	github.com/ethereum/go-ethereum/eth/api_backend.go:336 +0x45
github.com/ethereum/go-ethereum/eth/tracers.(*API).TraceCall(0xc0010cb060, 0x520d978, 0xc0c077ed00, 0xc10c843d58, 0xc10c843d70, 0x0, 0x0, 0xc11b9b8620, 0xc0dd3e21b0, 0x0, ...)
	github.com/ethereum/go-ethereum/eth/tracers/api.go:707 +0x151
reflect.Value.call(0xc01382f500, 0xc01383e538, 0x13, 0x4fe1485, 0x4, 0xc0c37e5e00, 0x5, 0x5, 0xc0c37e5e30, 0xc0d8a57090, ...)
	reflect/value.go:476 +0x8e7
reflect.Value.Call(0xc01382f500, 0xc01383e538, 0x13, 0xc0c37e5e00, 0x5, 0x5, 0x0, 0x0, 0xc041354c80)
	reflect/value.go:337 +0xb9
github.com/ethereum/go-ethereum/rpc.(*callback).call(0xc0138530e0, 0x520d978, 0xc0c077ed00, 0xc0e58d1d30, 0xf, 0xc0d8a57090, 0x3, 0x3, 0x0, 0x0, ...)
	github.com/ethereum/go-ethereum/rpc/service.go:206 +0x2c5
github.com/ethereum/go-ethereum/rpc.(*handler).runMethod(0xc04fb595f0, 0x520d978, 0xc0c077ed00, 0xc1072af2d0, 0xc0138530e0, 0xc0d8a57090, 0x3, 0x3, 0x3)
	github.com/ethereum/go-ethereum/rpc/handler.go:389 +0x8a
github.com/ethereum/go-ethereum/rpc.(*handler).handleCall(0xc04fb595f0, 0xc0cea31bc0, 0xc1072af2d0, 0x203033)
	github.com/ethereum/go-ethereum/rpc/handler.go:337 +0x265
github.com/ethereum/go-ethereum/rpc.(*handler).handleCallMsg(0xc04fb595f0, 0xc0cea31bc0, 0xc1072af2d0, 0x51ffe01)
	github.com/ethereum/go-ethereum/rpc/handler.go:298 +0x1be
github.com/ethereum/go-ethereum/rpc.(*handler).handleMsg.func1(0xc0cea31bc0)
	github.com/ethereum/go-ethereum/rpc/handler.go:139 +0x46
github.com/ethereum/go-ethereum/rpc.(*handler).startCallProc.func1(0xc04fb595f0, 0xc0dd3e2198)
	github.com/ethereum/go-ethereum/rpc/handler.go:226 +0xd2
created by github.com/ethereum/go-ethereum/rpc.(*handler).startCallProc
	github.com/ethereum/go-ethereum/rpc/handler.go:222 +0x66

[holiman]

Yeah, funky condition here:

		if block = eth.blockchain.GetBlockByNumber(block.NumberU64() + 1); block == nil {
			return nil, nil, fmt.Errorf("block #%d not found", block.NumberU64()+1)
		}

I.e, if block == nil, then print out block.NumberU64()+1

[huahuayu]

im using debug_traceCall to trace pending transactions

hi @fernandezpaco I am looking for a working example for this function just exactly as you described.

I read all the testcases about traceCall in the code base, one is func TestTraceCall(t *testing.T) and another is func TestOverridenTraceCall(t *testing.T) , also read a document, but still don't know how to do it in practice. Could you kindly share an example?

Hope your problem been solved!

[huahuayu]

hey, I found this document and example really helps!

[s1na]

Does this issue still persist?