--- /dev/null
+2
+blacklist
+# v2 allows comments after the second line, with '#' in first column,
+# blacklist will allow syscalls by default
+# if 'errno 0' was not appended to 'mknod' below, then the task would
+# simply be killed when it tried to mknod. 'errno 0' means do not allow
+# the container to mknod, but immediately return 0.
+mknod errno 0