i couldn't run apport-collect since I didn't file the bug. Here is the dmesg output after reproducing this failure in precise. Here were the precise steps:
0. create user ubuntu2 on both 10.42.43.1 and 10.42.43.16. .16 will be the client
1. sudo mount -t nfs 10.42.43.1:/home/ubuntu2 /home/ubuntu2 # mounted rw,no_root_squash,no_subtree_check
2. mkdir /tmp/a
3. sudo mount -t overlayfs -oupperdir=/tmp/a,lowerdir=/home/ubuntu2 none /mnt
4. ls /mnt
i couldn't run apport-collect since I didn't file the bug. Here is the dmesg output after reproducing this failure in precise. Here were the precise steps:
0. create user ubuntu2 on both 10.42.43.1 and 10.42.43.16. .16 will be the client 1:/home/ ubuntu2 /home/ubuntu2 # mounted rw,no_root_ squash, no_subtree_ check /tmp/a, lowerdir= /home/ubuntu2 none /mnt
1. sudo mount -t nfs 10.42.43.
2. mkdir /tmp/a
3. sudo mount -t overlayfs -oupperdir=
4. ls /mnt