Devnet-3: Besu forked off at block 110500

[daniellehrner]

Initial review shows a wrong gas calculation, Besu is charging 2500 gas more for a CALL than the other clients. It seems the problem is:

The tx causing it is 0x01911cedc5083ed9342846193bc1fbf187616f2366df7ba8606e49f39f2b7b93

Analysis

• Tx is sent to account 3093
• 3093 is an account which has delegated code
• At some point the contract make a CALL to itself, 2500 gas is charged too much
• Whenever an OP code needs to resolve an account with delegated code, we either charge 2600 (cold read) or 100 (warm read) for the resolution. The difference between the 2 is exactly 2500.

Conclusion:
Other clients seem to warm up the to address when the account has delegated code, even though no other additional gas costs are charged for this specific resolution at the beginning of the transaction.

Solution:
Besu needs to warm the to address in this case as well.

[daniellehrner]

Here is a test which a similar problem:

To execute it:

1) ./gradlew installDist
2) download https://github.com/ethereum/execution-spec-tests/releases/download/pectra-devnet-3%40v1.5.0/fixtures_pectra-devnet-3.tar.gz and extract it
3) build/install/besu/bin/evmtool block-test $PATH_TO_FIXTURES/blockchain_tests/prague/eip7702_set_code_tx/set_code_txs/set_code_to_self_caller.json

4) to run the debugger add export JAVA_OPTS="-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005" && before the last command