don't pin listenIn

interface.go

@@ -7,7 +7,6 @@ import (
 	"io"
 	"net/netip"
 	"os"
-	"runtime"
 	"sync/atomic"
 	"time"
 
@@ -283,8 +282,6 @@ func (f *Interface) listenOut(i int) {
 }
 
 func (f *Interface) listenIn(reader io.ReadWriteCloser, i int) {
-	runtime.LockOSThread()
-
 	packet := make([]byte, mtu)
 	out := make([]byte, mtu)
 	fwPacket := &firewall.Packet{}