service/dap: log stacktrace when panic is recovered (#2457)

service/dap/server.go

@@ -21,6 +21,7 @@ import (
 	"reflect"
 	"regexp"
 	"runtime"
+	"runtime/debug"
 	"strings"
 	"sync"
 
@@ -318,6 +319,7 @@ func (s *Server) handleRequest(request dap.Message) {
 		// In case a handler panics, we catch the panic and send an error response
 		// back to the client.
 		if ierr := recover(); ierr != nil {
+			s.log.Errorf("stacktrace from recovered panic:\n%s\n", debug.Stack())
 			s.sendInternalErrorResponse(request.GetSeq(), fmt.Sprintf("%v", ierr))
 		}
 	}()