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@gzliudan gzliudan commented Jan 5, 2026

Proposed changes

Ref: ethereum#26940

Types of changes

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  • Bugfix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Breaking change (fix or feature that would cause existing functionality to not work as expected)
  • Documentation Update (if none of the other choices apply)
  • Regular KTLO or any of the maintaince work. e.g code style
  • CICD Improvement

Impacted Components

Which part of the codebase this PR will touch base on,

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  • Consensus
  • Account
  • Network
  • Geth
  • Smart Contract
  • External components
  • Not sure (Please specify below)

Checklist

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  • This PR has sufficient test coverage (unit/integration test) OR I have provided reason in the PR description for not having test coverage
  • Provide an end-to-end test plan in the PR description on how to manually test it on the devnet/testnet.
  • Tested the backwards compatibility.
  • Tested with XDC nodes running this version co-exist with those running the previous version.
  • Relevant documentation has been updated as part of this PR
  • N/A

Copilot AI review requested due to automatic review settings January 5, 2026 08:33
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Pull request overview

This PR integrates EIP-4844 blob transaction pool functionality by introducing a modular transaction pool architecture with specialized subpools. The main changes include refactoring the legacy transaction pool into a subpool implementation and creating a new aggregator pool that manages multiple transaction type-specific subpools.

Key changes:

  • Introduced SubPool interface and LazyTransaction wrapper for deferred transaction resolution
  • Refactored existing transaction pool code from txpool package to legacypool package
  • Created new aggregator TxPool that manages multiple subpools and routes transactions accordingly

Reviewed changes

Copilot reviewed 41 out of 41 changed files in this pull request and generated 1 comment.

Show a summary per file
File Description
miner/worker.go Updated to use LazyTransaction wrapper and new ordering functions
miner/ordering_test.go Added comprehensive tests for transaction ordering with lazy loading
miner/ordering.go Implemented new transaction ordering logic with miner fee calculations
core/txpool/txpool.go Replaced legacy pool with new aggregator pool managing subpools
core/txpool/subpool.go Defined SubPool interface and LazyTransaction structure
core/txpool/errors.go Extracted error definitions to shared package
core/txpool/validation.go Added UsedAndLeftSlots validation callback
core/txpool/txpool_test.go Moved and updated tests to legacypool package
eth/backend.go Updated to instantiate new modular pool architecture
Multiple files Package renames from txpool to legacypool
Comments suppressed due to low confidence (1)

miner/ordering.go:1

  • Corrected 'if' to 'it' for grammatical accuracy.

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return fmt.Errorf("%w: balance %v, queued cost %v, tx cost %v, overshot %v", core.ErrInsufficientFunds, balance, spent, cost, new(big.Int).Sub(need, newBalance))
}
// Transaction takes a new nonce value out of the pool. Ensure it doesn't
// overflow the number of permitted transactions from a single accoun
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Corrected spelling of 'accoun' to 'account'.

Suggested change
// overflow the number of permitted transactions from a single accoun
// overflow the number of permitted transactions from a single account

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2 participants