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eth/downloader: fix data race around the ancientlimit (#21681)

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* eth/downloader: fix data race around the ancientlimit

* eth/downloader: initialize the ancientlimit as 0
This commit is contained in:
gary rong 2020-10-09 14:58:30 +08:00 committed by GitHub
parent 43cd31ea9f
commit 905ed109ed
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 3 deletions
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5
eth/downloader/downloader.go
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@ -515,6 +515,8 @@ func (d *Downloader) syncWithPeer(p *peerConnection, hash common.Hash, td *big.I
d.ancientLimit = d.checkpoint
} else if height > fullMaxForkAncestry+1 {
d.ancientLimit = height - fullMaxForkAncestry - 1
} else {
d.ancientLimit = 0
}
frozen, _ := d.stateDB.Ancients() // Ignore the error here since light client can also hit here.
@ -606,9 +608,6 @@ func (d *Downloader) cancel() {
func (d *Downloader) Cancel() {
d.cancel()
d.cancelWg.Wait()
d.ancientLimit = 0
log.Debug("Reset ancient limit to zero")
}
// Terminate interrupts the downloader, canceling all pending operations.