when called simultaneously with geth node shutdown:
To help emulate the environment needed to reproduce the bug, repro.sh bootstraps,
runs and kills geth and main.go.
./repro.shpsaftwerwards and ensure the go executable (ending withblockingbuild) is still running. Note that it will not respond to a regularkillcommand.- Install dlv (
go get -u github.com/derekparker/delve/cmd/dlv) - Use
dlv attach <pid> <binarypath>to attach to process - List goroutines with
goroutines - Switch to goroutine stuck on go-ethereum
send, i.e.goroutine 1 - Look at call stack with
stack
This issue is indeed spurious, so step 2 won't always reproduce, but in practice it reproduced 75% of the time.