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Merge pull request #14411 from karalabe/clique-double-sign 

consensus/clique: fix overflow on recent signer check around genesis
This commit is contained in:
Péter Szilágyi 2017-05-03 11:45:36 +03:00 committed by GitHub
parent a8eafcdc0e bcf2465b0b
commit 02fa3e3179
1 changed files with 1 additions and 1 deletions
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consensus/clique/clique.go
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@ -599,7 +599,7 @@ func (c *Clique) Seal(chain consensus.ChainReader, block *types.Block, stop <-ch
for seen, recent := range snap.Recents { for seen, recent := range snap.Recents {
if recent == signer { if recent == signer {
// Signer is among recents, only wait if the current block doens't shift it out // Signer is among recents, only wait if the current block doens't shift it out
if limit := uint64(len(snap.Signers)/2 + 1); seen > number-limit { if limit := uint64(len(snap.Signers)/2 + 1); number < limit || seen > number-limit {
log.Info("Signed recently, must wait for others") log.Info("Signed recently, must wait for others")
<-stop <-stop
return nil, nil return nil, nil