EIP-7002 WithdrawalRequestAddress syscall failure on custom PoS testnet in Erigon

[SyedMuhamadYasir]

Hi, I’m running a custom PoS testnet with Erigon + Lighthouse + Validator client.
Everything starts fine, but when block proposals begin, Erigon refuses to finalize execution with the following error:

[EIP-7002] Syscall failure: Empty Code at WithdrawalRequestAddress=00000961ef480eb55e80d19ad83579a64c007002
error=gas uint64 overflow

Erigon log: shows Empty Code at WithdrawalRequestAddress ...

Lighthouse log: reports BAD_REQUEST: GetPayloadFailed(EngineError(...))

Validator log: shows the same withdrawal address and fails to propose blocks.

I already tried adding the following into my genesis.json alloc:

"0x00000961ef480eb55e80d19ad83579a64c007002": {
  "balance": "0x0",
  "code": "0x33600060003760006000f3"
}

and also precompiles at 0x1 and 0x2, but the error persists.

Questions:

Is Erigon expecting a different address for the EIP-7002 withdrawal precompile in testnets?

Is the 0x33600060003760006000f3 code correct for WithdrawalRequest, or does Erigon require a different implementation?

Why do Geth/Reth not complain here, but Erigon strictly enforces this check?

What is the recommended way to configure genesis.json for custom PoS testnets so withdrawals work?

Below are the logs (Erigon, Lighthouse, Validator) for context.

[VBulikov]

VBulikov added Imp2 as Importance

[SyedMuhamadYasir]

VBulikov added Imp2 as Importance

wait.. so this is a bug?

do i have to wait for a fix?

or can you suggest a workaround for now?

[SyedMuhamadYasir]

VBulikov added Imp2 as Importance

I will share my config.yaml and genesis.json here as well for you to check if i am doing this right

[taratorio]

after Pectra both of the below addresses have to be populated with code (code can't be empty):

• ConsolidationRequestAddress at 0x0000BBdDc7CE488642fb579F8B00f3a590007251
• WithdrawalRequestAddress at 0x00000961Ef480Eb55e80D19ad83579A64c007002

for example you can see the deployed code for both on say hoodi at:

• https://hoodi.etherscan.io/address/0x0000BBdDc7CE488642fb579F8B00f3a590007251#code
• https://hoodi.etherscan.io/address/0x00000961Ef480Eb55e80D19ad83579A64c007002#code

i believe those were pre-deployed for mainnet (before the pectra transition) and for testnets/devnets post-pectra those can be initialised in the genesis (make sure you have both set correctly in yours)

example:

"0x0000bbddc7ce488642fb579f8b00f3a590007251": {
                "nonce": "0x01",
                "balance": "0x00",
                "code": "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",
                "storage": {}
},
"0x00000961ef480eb55e80d19ad83579a64c007002": {
                "nonce": "0x01",
                "balance": "0x00",
                "code": "0x3373fffffffffffffffffffffffffffffffffffffffe1460cb5760115f54807fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff146101f457600182026001905f5b5f82111560685781019083028483029004916001019190604d565b909390049250505036603814608857366101f457346101f4575f5260205ff35b34106101f457600154600101600155600354806003026004013381556001015f35815560010160203590553360601b5f5260385f601437604c5fa0600101600355005b6003546002548082038060101160df575060105b5f5b8181146101835782810160030260040181604c02815460601b8152601401816001015481526020019060020154807fffffffffffffffffffffffffffffffff00000000000000000000000000000000168252906010019060401c908160381c81600701538160301c81600601538160281c81600501538160201c81600401538160181c81600301538160101c81600201538160081c81600101535360010160e1565b910180921461019557906002556101a0565b90505f6002555f6003555b5f54807fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff14156101cd57505f5b6001546002828201116101e25750505f6101e8565b01600290035b5f555f600155604c025ff35b5f5ffd",
                "storage": {}
 },

[SyedMuhamadYasir]

after Pectra both of the below addresses have to be populated with code (code can't be empty):

• ConsolidationRequestAddress at 0x0000BBdDc7CE488642fb579F8B00f3a590007251
• WithdrawalRequestAddress at 0x00000961Ef480Eb55e80D19ad83579A64c007002

for example you can see the deployed code for both on say hoodi at:

• https://hoodi.etherscan.io/address/0x0000BBdDc7CE488642fb579F8B00f3a590007251#code
• https://hoodi.etherscan.io/address/0x00000961Ef480Eb55e80D19ad83579A64c007002#code

i believe those were pre-deployed for mainnet (before the pectra transition) and for testnets/devnets post-pectra those can be initialised in the genesis (make sure you have both set correctly in yours)

example:

"0x0000bbddc7ce488642fb579f8b00f3a590007251": {
                "nonce": "0x01",
                "balance": "0x00",
                "code": "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",
                "storage": {}
},
"0x00000961ef480eb55e80d19ad83579a64c007002": {
                "nonce": "0x01",
                "balance": "0x00",
                "code": "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",
                "storage": {}
 },

Thank you very much @taratorio !

just a question - is this Erigon-exclusive?

i ran geth and reth, on separate testnet, and they ran fine without these fields in the genesis.json

you feedback is greatly appreciated!

[taratorio]

after Pectra both of the below addresses have to be populated with code (code can't be empty):

• ConsolidationRequestAddress at 0x0000BBdDc7CE488642fb579F8B00f3a590007251
• WithdrawalRequestAddress at 0x00000961Ef480Eb55e80D19ad83579A64c007002

for example you can see the deployed code for both on say hoodi at:

• https://hoodi.etherscan.io/address/0x0000BBdDc7CE488642fb579F8B00f3a590007251#code
• https://hoodi.etherscan.io/address/0x00000961Ef480Eb55e80D19ad83579A64c007002#code

i believe those were pre-deployed for mainnet (before the pectra transition) and for testnets/devnets post-pectra those can be initialised in the genesis (make sure you have both set correctly in yours)
example:

"0x0000bbddc7ce488642fb579f8b00f3a590007251": {
                "nonce": "0x01",
                "balance": "0x00",
                "code": "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",
                "storage": {}
},
"0x00000961ef480eb55e80d19ad83579a64c007002": {
                "nonce": "0x01",
                "balance": "0x00",
                "code": "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",
                "storage": {}
 },

Thank you very much @taratorio !

just a question - is this Erigon-exclusive?

i ran geth and reth, on separate testnet, and they ran fine without these fields in the genesis.json

you feedback is greatly appreciated!

I havent checked how Reth and Geth handle this. Bottom line is you need to have correct code deployed at those addresses. Where did 0x33600060003760006000f3 come from in your config? Also on Discord you mentioned that Geth failed: "it works on geth for sure, BUT, gives a merkle root error later on".

[SyedMuhamadYasir]

after Pectra both of the below addresses have to be populated with code (code can't be empty):

• ConsolidationRequestAddress at 0x0000BBdDc7CE488642fb579F8B00f3a590007251
• WithdrawalRequestAddress at 0x00000961Ef480Eb55e80D19ad83579A64c007002

for example you can see the deployed code for both on say hoodi at:

• https://hoodi.etherscan.io/address/0x0000BBdDc7CE488642fb579F8B00f3a590007251#code
• https://hoodi.etherscan.io/address/0x00000961Ef480Eb55e80D19ad83579A64c007002#code

i believe those were pre-deployed for mainnet (before the pectra transition) and for testnets/devnets post-pectra those can be initialised in the genesis (make sure you have both set correctly in yours)
example:

"0x0000bbddc7ce488642fb579f8b00f3a590007251": {
                "nonce": "0x01",
                "balance": "0x00",
                "code": "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",
                "storage": {}
},
"0x00000961ef480eb55e80d19ad83579a64c007002": {
                "nonce": "0x01",
                "balance": "0x00",
                "code": "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",
                "storage": {}
 },

Thank you very much @taratorio !
just a question - is this Erigon-exclusive?
i ran geth and reth, on separate testnet, and they ran fine without these fields in the genesis.json
you feedback is greatly appreciated!

I havent checked how Reth and Geth handle this. Bottom line is you need to have correct code deployed at those addresses. Where did 0x33600060003760006000f3 come from in your config? Also on Discord you mentioned that Geth failed: "it works on geth for sure, BUT, gives a merkle root error later on".

Noted

as for '0x33600060003760006000f3' , it was a suggestion from chatgpt (probably hallucination)

and as for the geth merkle root error, it is documented and reported here: ethereum/go-ethereum#32386

[taratorio]

after Pectra both of the below addresses have to be populated with code (code can't be empty):

• ConsolidationRequestAddress at 0x0000BBdDc7CE488642fb579F8B00f3a590007251
• WithdrawalRequestAddress at 0x00000961Ef480Eb55e80D19ad83579A64c007002

for example you can see the deployed code for both on say hoodi at:

• https://hoodi.etherscan.io/address/0x0000BBdDc7CE488642fb579F8B00f3a590007251#code
• https://hoodi.etherscan.io/address/0x00000961Ef480Eb55e80D19ad83579A64c007002#code

i believe those were pre-deployed for mainnet (before the pectra transition) and for testnets/devnets post-pectra those can be initialised in the genesis (make sure you have both set correctly in yours)
example:

"0x0000bbddc7ce488642fb579f8b00f3a590007251": {
                "nonce": "0x01",
                "balance": "0x00",
                "code": "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",
                "storage": {}
},
"0x00000961ef480eb55e80d19ad83579a64c007002": {
                "nonce": "0x01",
                "balance": "0x00",
                "code": "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",
                "storage": {}
 },

Thank you very much @taratorio !
just a question - is this Erigon-exclusive?
i ran geth and reth, on separate testnet, and they ran fine without these fields in the genesis.json
you feedback is greatly appreciated!

I havent checked how Reth and Geth handle this. Bottom line is you need to have correct code deployed at those addresses. Where did 0x33600060003760006000f3 come from in your config? Also on Discord you mentioned that Geth failed: "it works on geth for sure, BUT, gives a merkle root error later on".

Noted

as for '0x33600060003760006000f3' , it was a suggestion from chatgpt (probably hallucination)

and as for the geth merkle root error, it is documented and reported here: ethereum/go-ethereum#32386

Ah I see, you are most likely getting the Unprecedented Syscall failure ... gas uint64 overflow because of this byte code that chatgpt has given you. It probably does something funky that results in the overflow. If you really want to get an answer about why you get a gas uint64 you will have to decipher the 0x33600060003760006000f3 byte code into EVM opcodes and follow its execution path. I don't think this is something that you want to spend your time on. It sounds like it is just invalid byte code for the withdrawals contract.

If all looks good once you try with the correct byte codes then I think we can close this issue.

[SyedMuhamadYasir]

after Pectra both of the below addresses have to be populated with code (code can't be empty):

• ConsolidationRequestAddress at 0x0000BBdDc7CE488642fb579F8B00f3a590007251
• WithdrawalRequestAddress at 0x00000961Ef480Eb55e80D19ad83579A64c007002

for example you can see the deployed code for both on say hoodi at:

• https://hoodi.etherscan.io/address/0x0000BBdDc7CE488642fb579F8B00f3a590007251#code
• https://hoodi.etherscan.io/address/0x00000961Ef480Eb55e80D19ad83579A64c007002#code

i believe those were pre-deployed for mainnet (before the pectra transition) and for testnets/devnets post-pectra those can be initialised in the genesis (make sure you have both set correctly in yours)
example:

"0x0000bbddc7ce488642fb579f8b00f3a590007251": {
                "nonce": "0x01",
                "balance": "0x00",
                "code": "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",
                "storage": {}
},
"0x00000961ef480eb55e80d19ad83579a64c007002": {
                "nonce": "0x01",
                "balance": "0x00",
                "code": "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",
                "storage": {}
 },

Thank you very much @taratorio !
just a question - is this Erigon-exclusive?
i ran geth and reth, on separate testnet, and they ran fine without these fields in the genesis.json
you feedback is greatly appreciated!

I havent checked how Reth and Geth handle this. Bottom line is you need to have correct code deployed at those addresses. Where did 0x33600060003760006000f3 come from in your config? Also on Discord you mentioned that Geth failed: "it works on geth for sure, BUT, gives a merkle root error later on".

Noted
as for '0x33600060003760006000f3' , it was a suggestion from chatgpt (probably hallucination)
and as for the geth merkle root error, it is documented and reported here: ethereum/go-ethereum#32386

Ah I see, you are most likely getting the Unprecedented Syscall failure ... gas uint64 overflow because of this byte code that chatgpt has given you. It probably does something funky that results in the overflow. If you really want to get an answer about why you get a gas uint64 you will have to decipher the 0x33600060003760006000f3 byte code into EVM opcodes and follow its execution path. I don't think this is something that you want to spend your time on. It sounds like it is just invalid byte code for the withdrawals contract.

If all looks good once you try with the correct byte codes then I think we can close this issue.

ah, i should clear up something.

the [EIP-7002] Syscall failure: Empty Code at WithdrawalRequestAddress=00000961ef480eb55e80d19ad83579a64c007002 error=gas uint64 overflow error was there from the beginning, even before i asked chatgpt for help

but i now realize, that not having these

• ConsolidationRequestAddress at 0x0000BBdDc7CE488642fb579F8B00f3a590007251
• WithdrawalRequestAddress at 0x00000961Ef480Eb55e80D19ad83579A64c007002

might have caused the error, at the very least in Erigon

i'll close the issue now (unless you have any more guidance for me)

if i need help again, with this particular issue, i will comment here again to re open it!

you have my sincere thanks for your help!