From 2fed476ce16101e43867b9e2c8cd1625db0180e0 Mon Sep 17 00:00:00 2001 From: Bas van Kervel Date: Mon, 9 Jan 2017 11:30:06 +0100 Subject: [PATCH] core: fix race condition in WriteMipmapBloom --- core/database_util.go | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/core/database_util.go b/core/database_util.go index 84669de35..2060b8b6a 100644 --- a/core/database_util.go +++ b/core/database_util.go @@ -23,6 +23,7 @@ import ( "errors" "fmt" "math/big" + "sync" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core/types" @@ -63,6 +64,8 @@ var ( oldBlockHashPrefix = []byte("block-hash-") // [deprecated by the header/block split, remove eventually] ChainConfigNotFoundErr = errors.New("ChainConfig not found") // general config not found error + + mipmapBloomMu sync.Mutex // protect against race condition when updating mipmap blooms ) // encodeBlockNumber encodes a block number as big endian uint64 @@ -564,6 +567,9 @@ func mipmapKey(num, level uint64) []byte { // WriteMapmapBloom writes each address included in the receipts' logs to the // MIP bloom bin. func WriteMipmapBloom(db ethdb.Database, number uint64, receipts types.Receipts) error { + mipmapBloomMu.Lock() + defer mipmapBloomMu.Unlock() + batch := db.NewBatch() for _, level := range MIPMapLevels { key := mipmapKey(number, level)