On Thu, 18 Nov 2010 17:13:26 +0100 André Sintzoff <andre.sintzoff@xxxxxxxxx> wrote: > 2010/11/18 Steve French <smfrench@xxxxxxxxx>: > > On Thu, Nov 18, 2010 at 9:26 AM, André Sintzoff > > <andre.sintzoff@xxxxxxxxx> wrote: > >> Hello, > >> > >> After upgrading Ubuntu from 10.04 to 10.10, mount.cifs does no more > >> work as expected on my environment. > >> > >> The command is: > >> sudo mount.cifs //servername/somehow/deep/path /mnt/servername -o > >> nounix,user=johndoe,domain=CORRECT_WORKGROUP,password=jdpasswd > >> > >> On Ubuntu 10.04, the mount works well. > >> According to dpkg, the exact version for smbfs is 2:3.4.7~dfsg-1ubuntu3.2 > >> > >> On Ubuntu 10.10, the mount fails with the following error message: > >> mount error(11): Resource temporarily unavailable > >> Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) > > > > Is there anything related to cifs logged in kernel message log (dmesg)? > > Yes. The following lines should give the failure cause. > > [28899.254869] CIFS VFS: dns_resolve_server_name_to_ip: unable to > resolve: server2.domain.com > [28899.254879] CIFS VFS: cifs_compose_mount_options: Failed to resolve > server part of \\server2.domain.com\path to IP: -11 > > It seems that the mounting point //servername/somehow/deep/path is not > physically on "servername" machine but already mounted from "server2" > on "servername" filesystem. Therefore, cifs has to perform a second > name resolution which fails. > I don't understand why cifs is unable to resolve server2.domain.com. > ping server2.domain.com and host server2.domain.com are OK. > > On Ubuntu 10.04, the name resolution is correctly managed. > The corresponding line in dmesg: > [ 1396.567721] /build/buildd/linux-2.6.32/fs/cifs/dns_resolve.c: > dns_resolve_server_name_to_ip: resolved: server2.domain.com to > 10.10.193.26 > > I just change the mount command to use directly the server2 machine > and it works. > > Thanks for giving me enough information to find a workaround. > It sounds like /etc/request-key.conf isn't set up to do DNS resolution on the broken host. See the cifs.upcall manpage for details. -- Jeff Layton <jlayton@xxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
