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les: fix panic #20013

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merged 1 commit into from
Aug 27, 2019
Merged

les: fix panic #20013

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3 changes: 1 addition & 2 deletions les/server_handler.go
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Original file line number Diff line number Diff line change
Expand Up @@ -583,15 +583,14 @@ func (h *serverHandler) handleMsg(p *peer, wg *sync.WaitGroup) error {
}
// Look up the root hash belonging to the request
var (
number *uint64
header *types.Header
trie state.Trie
)
if request.BHash != lastBHash {
root, lastBHash = common.Hash{}, request.BHash

if header = h.blockchain.GetHeaderByHash(request.BHash); header == nil {
p.Log().Warn("Failed to retrieve header for proof", "block", *number, "hash", request.BHash)
p.Log().Warn("Failed to retrieve header for proof", "hash", request.BHash)
atomic.AddUint32(&p.invalidCount, 1)
continue
}
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