fix: use tx gas limit for root trace #3719
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merklefruit
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merklefruit
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merklefruit
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mattsse
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## Description This pull request is Part 1/2 of fixing the bug where the `gas` and `gasUsed` fields in Parity Trace root are incorrect. Part 2/2 paradigmxyz/reth#9761 ## Related Issues and Pull Requests - Follow: ethereum/go-ethereum#27029 - Improve: paradigmxyz/reth#3678 and paradigmxyz/reth#3719 - Fix: paradigmxyz/reth#9142 with #170 - Update: paradigmxyz/reth#3782 ## Problem The `gas` and `gasUsed` fields in Geth Debug Trace root should be the gas limit and gas used for the entire transaction. However, two fields in Parity Trace root should be the original ones. ### Reproducible Example With the latest version Reth v1.0.3, using `trace_transaction()` to trace the transaction `0x03128677ee3a9623d20f3c677f423ccc592d126374bf32e331343dd1bdf38b61` ``` curl http://localhost:8545 \ -X POST \ -H "Content-Type: application/json" \ --data '{"method":"trace_transaction","params":["0x03128677ee3a9623d20f3c677f423ccc592d126374bf32e331343dd1bdf38b61"],"id":1,"jsonrpc":"2.0"}' ``` **From Reth** ``` gas: 0x55493 (349331) gasUsed: 0x32d16 (208150) ``` **From [Etherscan](https://etherscan.io/vmtrace?txhash=0x03128677ee3a9623d20f3c677f423ccc592d126374bf32e331343dd1bdf38b61&type=parity#raw) and QuickNode** ``` gas: 0x4f227 (324135) gasUsed: 0x36622 (222754) ``` ## Solution for `revm-inspectors` 1. Not modify `gas_limit` and `gas_used` in the trace root ```diff - gas_limit = context.env.tx.gas_limit; - trace.set_root_trace_gas_used(gas_used); - trace.gas_used = gas_used(context.spec_id(), gas.spent(), gas.refunded() as u64); ``` 2. The modification in Step 1 will cause another problem The `gas` field for Geth Debug Trace root will also be reset (not the gas limitation for the entire transaction). therefore, can define `set_transaction_gas_limit()` and `with_transaction_gas_limit()` for Geth Debug, which is similar to current `set_transaction_gas_used()` and `with_transaction_gas_used()` for Parity. 3. Then, modify the Reth Part: `crates/rpc/rpc/src/trace.rs` and `crates/rpc/rpc/src/debug.rs` to completely fix the bug. ## Miscellaneous - Actually, I love the current design, but the results are inconsistent with those of others. - When I used `make pr` to test the Reth Part, the issue paradigmxyz/reth#9381 still exists for me. I should only skip tests for `lockfile` and test them seperately.
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ref #3678
the gas limit for the root trace should be the transaction's gas limit not the call input gas limit which already has init cost subtracted
that's also how geth does it
ref ethereum/go-ethereum#27029
cc @jsvisa