Correctly budget gas for refund payment in block to non-EOA recipient#932
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ZanCorDX
approved these changes
Jul 17, 2026
When calculating the payout gas budget of a non-EOA refund recipient,
estimate_payout_gas_limit used tx_gas_limit_cap (EIP-7825: 16,777,216) minus the
gas used in the block. This caused bundles with those refunds to fail once the
block committed past ~16.7M gas, failing with
`EstimatePayoutGas(PayoutTxErr(EvmError(Transaction(CallGasCostMoreThanGasLimit
{ initial_gas: 21000, gas_limit: 0 }))))`
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📝 Summary
When calculating the payout gas budget of a non-EOA refund recipient,
estimate_payout_gas_limitusedtx_gas_limit_cap(EIP-7825: 16,777,216) minus the gas used in the block. This caused bundles with those refunds to fail once the block committed past ~16.7M gas, failing withEstimatePayoutGas(PayoutTxErr(EvmError(Transaction(CallGasCostMoreThanGasLimit { initial_gas: 21000, gas_limit: 0 }))))Instead, the payout tx gas_limit needs to be at most the EIP-7825 limit, or whatever is left in the block, whichever is less.
💡 Motivation and Context
prevent bundles from being dropped due to bad refund tx payout calculation
✅ I have completed the following steps:
make lintmake test