https://chromium.googlesource.com/chromiumos/third_party/lakitu-kernel/+/7e627993b8fab51570643af5bb3e3b1dc7b477c3/fs/ramfs/file-nommu.c
fs/ramfs/file-nommu.c - chromiumos/third_party/lakitu-kernel - Git at Google
third partyramfsfilenommuchromiumos
https://lists.busybox.net/pipermail/busybox/2014-June/081003.html
ping [PATCH] ftpd: NOMMU/chroot fix ?
pingpatchftpdnommuchroot