root@OpenWrt:/# sh -x /sbin/mount_root 
+ . /etc/functions.sh
+ alias debug=:
+ N=

+ _C=0
+ reset_cb
+ mount none /proc -t proc
mount: Mounting none on /proc failed: Device or resource busy
+ awk /Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s} /proc/meminfo
+ size=7299072
+ mount none /tmp -t tmpfs -o size=7299072,nosuid,nodev,mode=1777
+ mkdir -p /dev/pts
+ mount none /dev/pts -t devpts
mount: Mounting none on /dev/pts failed: Device or resource busy
+ mount -t sysfs none /sys
+ grep jffs2 /proc/mounts
+ mount -o remount,rw /dev/root /
root@OpenWrt:/# __alloc_pages: 0-order allocation failed (gfp=0x1d2/0)
VM: killing process chilli

root@OpenWrt:/# mount
/dev/root on / type squashfs (rw)
none on /dev type devfs (rw)
none on /proc type proc (rw)
none on /tmp type tmpfs (rw,nosuid,nodev)
none on /dev/pts type devpts (rw)
/dev/mtdblock/2 on /jffs type jffs2 (rw)
none on /tmp type tmp