Daire Byrne: > Yes - to be precise: > > mount -t nfs -o nolock,ro,tcp,vers=3 serevr1:/mnt/blah /mnt/nfsroot > mount -t aufs -o dirs=/mnt/cache/overlay=rw:/mnt/nfsroot=ro none > /mnt/sysroot > export /mnt/sysroot via NFS > on nfs-client, tried mount server2:/mnt/sysroot and failed
Thank you. Unfortunately (or fortunately) I could not reproduce the problem in linux-2.6.27 and latest aufs2. My nfs-client was not able to mount simply and there was no crash on nfs-server. SERVER$ tail /proc/mounts /dev/loop1 /tmp/nfsv3/tmp/ro ext2 ro,errors=continue 0 0 localhost:/tmp/nfsv3/tmp/ro /dev/shm/ro nfs ro,vers=3,rsize=16384,wsize=16384,namlen=255,hard,intr,proto=udp,timeo=11,retrans=3,sec=sys,addr=127.0.0.1 0 0 /dev/loop2 /dev/shm/rw ext3 rw,errors=continue,data=ordered 0 0 none /dev/shm/u aufs rw,si=c89bd611 0 0 SERVER$ cat /sys/fs/aufs/si_c89bd611/* /dev/shm/rw=rw /dev/shm/ro=ro /dev/shm/rw/.aufs.xino SERVER$ sudo exportfs -i -o rw,async,no_subtree_check,no_root_squash,fsid=9 \*:/dev/shm/u CLIENT$ showmount -e SERVER Export list for SERVER: /dev/shm/u * /tmp/nfsv3/tmp/ro localhost CLIENT$ sudo mount SERVER:/dev/shm/u /mnt mount.nfs: mount to NFS server 'SERVER' failed: timed out, retrying mount.nfs: mount to NFS server 'SERVER' failed: timed out, retrying mount.nfs: mount to NFS server 'SERVER' failed: timed out, retrying mount.nfs: mount to NFS server 'SERVER' failed: timed out, retrying mount.nfs: mount to NFS server 'SERVER' failed: timed out, giving up If you know how can I reproduce the problem, please let me know. While your operation is not supported, I just want to stop aufs crashing. J. R. Okajima ------------------------------------------------------------------------------
