Major issues with nfsv4
Rick Macklem
rmacklem at uoguelph.ca
Fri Dec 11 23:39:20 UTC 2020
Alan Somers wrote:
[stuff snipped]
>That's some good information. However, it must not be the whole story. I've >been nullfs mounting my NFS mounts for years. For example, right now on a >FreeBSD 12.2-RC2 machine:
If I recall, you were one of the two people that needed to switch to
"minorversion=1" to get rid of NFSERR_BADSEQID (10026) errors.
Is that correct?
>> sudo nfsstat -m
>Password:
>192.168.0.2:/home on /usr/home
>nfsv4,minorversion=1,tcp,resvport,soft,cto,sec=sys,acdirmin=3,acdirmax=60,acreg>min=5,acregmax=60,nametimeo=60,negnametimeo=60,rsize=65536,wsize=6553>6,readdirsize=65536,readahead=1,wcommitsize=16777216,timeout=120,retrans=>2147483647
Btw, using "soft" with NFSv4 mounts is a bad idea. (See the BUGS section of
"man mount_nfs".)
If you have a hung NFSv4 mount, you can use
# umount -N /usr/home
to dismount it. (It may take a couple of minutes.)
rick
> mount | grep home
192.168.0.2:/home on /usr/home (nfs, nfsv4acls)
/usr/home on /iocage/jails/rustup2/root/usr/home (nullfs)
Are you using any mount options with nullfs? It might be worth trying to make the read-only mount into read-write, to see if that helps. And what does "jls -n" show?
-Alan
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