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eth/downloader: hold pivotLock when marking pivot committed (#35405)

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commitPivotBlock updated committed without pivotLock, while other pivot
transitions serialize through that lock. Take the lock around the store
to keep pivot commitment consistent with pivotHeader updates.
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cui 2026-07-24 16:19:35 +08:00 committed by GitHub
parent a524f2bb17
commit cd65ccad96
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eth/downloader/downloader.go
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@ -1109,7 +1109,9 @@ func (d *Downloader) commitPivotBlock(result *fetchResult) error {
if err := d.blockchain.SnapSyncComplete(block.Hash(), d.snapSyncer.Version() == snap.SNAP2); err != nil {
return err
}
d.pivotLock.Lock()
d.committed.Store(true)
d.pivotLock.Unlock()
// The chain has obtained a stateful head by committing the pivot block,
// the mission of the snap sync is regarded as accomplished and the mode