virtiofs: wait for virtiofsd process to release its resources

We start virtiofsd in foreground (-f option), so we should wait for it to reclaim its resources to avoid zombie process when qemu or virtiofsd got killed unexpectedly. Fixes: #1934 Signed-off-by: Eryu Guan <[email protected]>
kata-containers · Aug 6, 2019 · a9168a3 · a9168a3
1 parent 00e0aaa
commit a9168a3
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/virtcontainers/qemu.go b/virtcontainers/qemu.go
@@ -658,6 +658,8 @@ func (q *qemu) setupVirtiofsd(timeout int) (remain int, err error) {
 			}
 		}
 		q.Logger().Info("virtiofsd quits")
+		// Wait to release resources of virtiofsd process
+		cmd.Process.Wait()
 		q.stopSandbox()
 	}()