Panic on reorgOnNewHead #21505
Description
Geth 1.9.20 - Linux
INFO [08-31|21:47:06.926] Imported new block headers count=2 elapsed=15.987ms number=10768509 hash="7fa573…25a30f" ignored=1
INFO [08-31|21:47:07.134] Loaded most recent local header number=10766460 hash="b45f35…72944b" td=17121215388538268308988 age=7h35m7s
WARN [08-31|21:47:07.135] Rolled back chain segment header=10768509->10766460 fast=0->0 block=0->0 reason="syncing canceled (requested)"
WARN [08-31|21:47:07.135] Synchronisation failed, retrying err="no peers to keep download active"
INFO [08-31|21:47:14.766] Looking for peers peercount=0 tried=13 static=0
INFO [08-31|21:47:24.770] Looking for peers peercount=0 tried=8 static=0
INFO [08-31|21:47:34.774] Looking for peers peercount=0 tried=10 static=0
INFO [08-31|21:47:44.778] Looking for peers peercount=0 tried=14 static=0
INFO [08-31|21:47:54.781] Looking for peers peercount=0 tried=6 static=0
INFO [08-31|21:48:04.785] Looking for peers peercount=0 tried=7 static=0
INFO [08-31|21:48:14.788] Looking for peers peercount=0 tried=9 static=0
INFO [08-31|21:48:24.792] Looking for peers peercount=0 tried=9 static=0
WARN [08-31|21:48:33.698] Synchronisation failed, dropping peer peer=09b73c91a98e588184b67e95baa15602fa63301c69814c27193a55f48e370a3e err=timeout
INFO [08-31|21:48:34.795] Looking for peers peercount=1 tried=12 static=0
INFO [08-31|21:48:41.295] Imported new block headers count=192 elapsed=829.917ms number=10766652 hash="433ff3…2749ba" age=6h53m
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x1c0 pc=0xd20998]
goroutine 49 [running]:
github.com/ethereum/go-ethereum/light.(*TxPool).reorgOnNewHead(0xc000f5c000, 0x1491740, 0xc002d776e0, 0xc003abb200, 0xc002d776e0, 0xc0047ff020, 0x4664ac)
github.com/ethereum/go-ethereum/light/txpool.go:229 +0x238
github.com/ethereum/go-ethereum/light.(*TxPool).setNewHead(0xc000f5c000, 0xc003abb200)
github.com/ethereum/go-ethereum/light/txpool.go:310 +0xf7
github.com/ethereum/go-ethereum/light.(*TxPool).eventLoop(0xc000f5c000)
github.com/ethereum/go-ethereum/light/txpool.go:291 +0x56
created by github.com/ethereum/go-ethereum/light.NewTxPool
github.com/ethereum/go-ethereum/light/txpool.go:108 +0x3da