k3s-io/k3s · error

server panicked: %v

Error message

server panicked: %v

What it means

Error "server panicked: %v" thrown in k3s-io/k3s.

Source

Thrown at pkg/cli/server/server.go:89

			return err
		}
	}

	// Initialize logging, and subprocess reaping if necessary.
	// Log output redirection and subprocess reaping both require forking.
	if err := cmds.InitLogging(); err != nil {
		return err
	}

	klog.EnableContextualLogging(true)
	ctx := logger.NewContext(signals.SetupSignalContext(), version.Program)
	wg := &sync.WaitGroup{}

	// If exiting due to an error, ensure that contexts are cancelled so that the
	// WaitGroup exits.  Otherwise, wait for something else to initiate shutdown.
	defer func() {
		if r := recover(); r != nil {
			rerr = fmt.Errorf("server panicked: %v", r)
		}
		if rerr != nil {
			// do not need to pass the error in here, it will be reported by the CLI error handler
			signals.RequestShutdown(nil)
		} else {
			<-ctx.Done()
			rerr = ctx.Err()
		}
		wg.Wait()
	}()

	if !cfg.DisableAgent && !cfg.Rootless {
		if err := permissions.IsPrivileged(); err != nil {
			return errors.WithMessage(err, "server requires additional privilege when not run with --rootless and/or --disable-agent")
		}
	}

	if cfg.Rootless {

View on GitHub (pinned to 6ba341e396)

When it happens

Trigger: Thrown at pkg/cli/server/server.go:89 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of k3s-io/k3s@6ba341e396 (2026-08-15). Data as JSON: /api/errors/d79d35abc821e957. Report an issue: GitHub.