Claude Buisson wrote: >Hi, > >Last month, I started switching all my systems (stable/9, stable/10, >stable/11 and current) to NFSv4, and I found that: > > on current (svn 312652) an entry is added to /var/db/mounttab by >mount_nfs(8), but not suppressed by umount(8). It can be suppressed by >rpc.umntall(8). > >The same anomaly appears on stable/11 after upgrading to svn 312950. > >It is relatively easy to trace this anomaly to r308871 on current and >its MFHs (r309517 for stable/11). > >Patching sbin/umount/umount.c to restore the RPC call for NFSv4 makes >umount(8) suppress the mounttab entry as before. > >I do not know what is the proper solution, as suppressing the >modification of mounttab by mount_nfs(8) for NFSv4 could be an (more >complicated) alternative ! This would be the correct fix. The entries in mounttab are meaningless. Even for NFSv3, all they do is provide a "best guess" answer for "showmount". - The Mount protocol is not part of NFSv4. I had a patch which disabled it for NFSv4 servers, but some folk liked the idea of having "showmount -e" to work, so I didn't commit it.
rick ps: I had actually thought mount_nfs(8) didn't do a Mount protocol RPC for NFSv4, but I guess it is. That needs to be fixed, since NFSv4 servers don't need to support Mount at all. _______________________________________________ firstname.lastname@example.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"