diff -up nfs-utils-1.3.0/utils/mount/stropts.c.orig nfs-utils-1.3.0/utils/mount/stropts.c --- nfs-utils-1.3.0/utils/mount/stropts.c.orig 2014-03-25 11:12:07.000000000 -0400 +++ nfs-utils-1.3.0/utils/mount/stropts.c 2016-04-28 11:18:25.876793000 -0400 @@ -352,13 +352,26 @@ static int nfs_validate_options(struct n if (!nfs_nfs_proto_family(mi->options, &family)) return 0; - hint.ai_family = (int)family; - error = getaddrinfo(mi->hostname, NULL, &hint, &mi->address); - if (error != 0) { - nfs_error(_("%s: Failed to resolve server %s: %s"), - progname, mi->hostname, gai_strerror(error)); - mi->address = NULL; - return 0; + /* + * A remount is not going to be able to change the server's address, + * nor should we try to resolve another address for the server as we + * may end up with a different address. + */ + if (mi->flags & MS_REMOUNT) { + po_remove_all(mi->options, "addr"); + } else { + hint.ai_family = (int)family; + error = getaddrinfo(mi->hostname, NULL, &hint, &mi->address); + if (error != 0) { + nfs_error(_("%s: Failed to resolve server %s: %s"), + progname, mi->hostname, gai_strerror(error)); + mi->address = NULL; + return 0; + } + + if (!nfs_append_addr_option(mi->address->ai_addr, + mi->address->ai_addrlen, mi->options)) + return 0; } if (!nfs_set_version(mi)) @@ -367,10 +380,6 @@ static int nfs_validate_options(struct n if (!nfs_append_sloppy_option(mi->options)) return 0; - if (!nfs_append_addr_option(mi->address->ai_addr, - mi->address->ai_addrlen, mi->options)) - return 0; - return 1; }