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eth: fix tracing state retrieval if requesting the non-dirty genesis #22629

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Merged
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Apr 7, 2021
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eth: fix tracing state retrieval if requesting the non-dirty genesis #22629

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10 changes: 10 additions & 0 deletions eth/state_accessor.go
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,16 @@ func (eth *Ethereum) stateAtBlock(block *types.Block, reexec uint64, base *state
// the internal junks created by tracing will be persisted into the disk.
database = state.NewDatabaseWithConfig(eth.chainDb, &trie.Config{Cache: 16})

// If we didn't check the dirty database, do check the clean one, otherwise
// we would rewind past a persisted block (specific corner case is chain
// tracing from the genesis).
if !checkLive {
statedb, err = state.New(current.Root(), database, nil)
if err == nil {
return statedb, nil
}
}
// Database does not have the state for the given block, try to regenerate
for i := uint64(0); i < reexec; i++ {
if current.NumberU64() == 0 {
return nil, errors.New("genesis state is missing")
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