I don't even know how to Google for this. Hosts involved: storage0: NFS/KRB5 server dorito: NFS client
As root, I can mount, list files, view files, and so on. When I try to list files on the mount, I get a stale file handle error. ➜ ~ mount /mnt/backup && ls -hal /mnt/backup ls: cannot open directory '/mnt/backup': Stale file handle ➜ ~ ls /mnt -hal ls: cannot access '/mnt/backup': Permission denied total 24K drwxr-xr-x 7 root root 4.0K Feb 24 12:10 . drwxr-xr-x 22 root root 4.0K Feb 23 15:56 .. d????????? ? ? ? ? ? backup Note the difference with root: dorito :: ~ » mount /mnt/backup && ls -hal /mnt/backup total 57K drwxr-xr-x 12 root root 12 Feb 23 03:36 . drwxr-xr-x 7 root root 4.0K Feb 24 12:10 .. drwxr-xr-x 3 jackman jackman 3 Feb 11 04:21 backup_dorito_20210211 drwxr-xr-x 4 jackman jackman 4 Feb 23 06:16 dorito_20210223-0336 dorito :: ~ » ls -hal /mnt total 26K drwxr-xr-x 7 root root 4.0K Feb 24 12:10 . drwxr-xr-x 22 root root 4.0K Feb 23 15:56 .. drwxr-xr-x 12 root root 12 Feb 23 03:36 backup Cute, eh? This is not a problem on the storage server itself: storage0 :: /srv » mount /mnt/backup && ls -hal /mnt/backup total 57K drwxr-xr-x 12 root root 12 Feb 23 03:36 . drwxr-xr-x 8 root root 4.0K Feb 24 14:16 .. drwxr-xr-x 3 jackman jackman 3 Feb 11 04:21 backup_dorito_20210211 drwxr-xr-x 4 jackman jackman 4 Feb 23 06:16 dorito_20210223-0336 Here are some relevant things: ➜ ~ mount | grep nfs storage0:/srv/backup on /mnt/backup type nfs4 (rw,nosuid,nodev,noexec,relatime,vers=4.2,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=krb5,clientaddr=10.1.0.110,local_lock=none,addr=10.1.0.100,user=jackman) ➜ ~ cat /etc/fstab | grep backup storage0:/srv/backup /mnt/backup nfs4 noauto,rw,noexec,user,sec=krb5 0 0 storage0 :: /srv » cat /etc/exports | grep backup /srv/backup 10.0.0.0/8(rw,no_subtree_check,sec=krb5) storage0 :: /srv » cat /etc/default/nfs-kernel-server RPCNFSDCOUNT=32 RPCNFSDPRIORITY=0 RPCMOUNTDOPTS="--manage-gids" NEED_SVCGSSD="yes" RPCSVCGSSDOPTS="" storage0 :: /srv » cat /etc/default/nfs-common NEED_STATD= STATDOPTS= NEED_IDMAPD="yes" NEED_GSSD="yes" Networking is static: storage0 :: /var/log/kerberos » cat /etc/hosts 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback ff02::1 ip6-allnodes ff02::2 ip6-allrouters 10.1.0.100 storage0.jackman.local storage0 10.1.0.110 dorito.jackman.local dorito The mount appears to execute cleanly: ➜ ~ mount -v /mnt/backup mount.nfs4: timeout set for Wed Feb 24 14:27:58 2021 mount.nfs4: trying text-based options 'sec=krb5,vers=4.2,addr=10.1.0.100,clientaddr=10.1.0.110' I don't see anything in the system logs on either machine that look at all relevant. Nothing odd (IMHO) is happening in the KRB5 logs, just successful grants. I thought this problem was exclusive to dorito (the client), so I nuked and re-installed Devuan. I have since installed Xubuntu on my desktop and it has the same issue now, too, but I'm politely setting that machine aside as it's not a Devuan machine. BTW, I've tried with 'noac', with no apparent change in behavior. I'm happy to RTFM if I knew what I was looking for. As always, any helpful souls are welcome to solicit on behalf of their beer fund. Andrew Jackman [email protected]
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