From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.9) Gecko/20020408 Description of problem: netfs retry either fails to unmount NFS file systems, or when it does, it fails to recognize that it succeeded and continues retrying the umount command. netfs continues retrying even after the local portmap and lockd have gone away, leaving meaningless errors on the console during shutdown. Version-Release number of selected component (if applicable): How reproducible: Sometimes Steps to Reproduce: 1. Set up an ID with a home directory in NFS 2. log out (this leaves gconfd running in the backround) 3. immediately shut the system down Actual Results: from /var/log/messages: Jul 21 17:46:06 dexter umount: umount2: Device or resource busy Jul 21 17:46:06 dexter umount: umount: /home: not mounted Jul 21 17:46:06 dexter netfs: Unmounting NFS filesystems: failed Jul 21 17:46:13 dexter netfs: Unmounting NFS filesystems (retry): succeeded Jul 21 17:46:20 dexter netfs: Unmounting NFS filesystems (retry): succeeded After killing all processes with TERM, netfs umount results in an "RPC error 101" type message on the console. Expected Results: If retrying "succeeded" why does it retry again? Is there a way to prevent a retry after portmap is gone? Additional info: umount may not update /proc/mounts on error. Using /etc/mtab or directly parsing the output of the mount command might be a better idea than using /proc/mounts to determine which file systems are still mounted.
Part of the problem is that retrying to unmount NFS file systems continues after NFS statd and the portmapper have shut down. Unmounting network file systems needs to succeed before any network services go away, otherwise there is no guarantee that hard mounted file systems will get all their data written back to file servers.
This behavior only appears with the retail version of RH 7.3. I was experiencing the same problems on my home machines. After installing all 7.3 errata (except kernel updates), the problem seems to have disappeared.
Closing bugs on older, no longer supported, releases. Apologies for any lack of response. If this persists on a current release, such as Fedora Core 4, please open a new bug.