[create new fs]
# zfs set mountpoint=legacy clk1
# mount -F zfs -onoatime clk1 /mnt
# mount
/mnt on clk1 read/write/setuid/devices/exec/xattr/atime/dev=2d90009
I see that atime is still set.
I do not reproduce it on latest nevada nightly.
I only hit it on Eric's fma2 pre-int 0520 bits.