File transfers from remote Windows shares stall indefinitely without crashing

[Dave Kokandy]

In Ubuntu 12.10 and now 13.04, I find that trying to copy a folder of files either to or from a remote Windows shared folder stalls indefinitely. This case that I'm reporting involves transferring files shared from a Samba file server to a local hard disk. It has stalled on file 84 of 206. When this happens, the file transfer window will remain open, saying 330.9 MB of 758.8 MB until I feel like closing it (it never fails or times out). I can continue to browse through folders on that remote server in Nautilus or even open files stored on the remote server, but that transfer will never resume.

If I then try to unmount that server, I get the message "Volume is busy: One or more applications are keeping the volume busy." It indicates that "File Operations: nautilus -n" is what is still in use (But nothing is transferring.) If I tell it to "Unmount anyway" I get the message "Unable to unmount torrents on hda: Timeout was reached" (despite the fact that I was still able to communicate with that server to browse and open files). The file transfer window is still open and stalled.

At this point, if I try to cancel the file transfer by hitting the red X, the red X grays out, but the file transfer doesn't stop or close or seem to care at all. If I repeat trying to dismount that share, it will eventually disconnect, but then when I try to reconnect to that share, I get "Could not display "": The file is of an unknown type." with the option to "Select application" or "OK". Other Samba shares on that server are still accessible.

If I then run a command like "killall nautilus" I get an apport notice that an error occured in givfs-smb. If I reopen nautilus, I find that I am still connected to that share I was trying to transfer from and that I tried so hard to disconnect from. I am then able to restart my file transfer, which completes without incident. When this had happened in the past, I found that if I did not deliberatly overwrite all the files from the previous transfer, there would be one file that would be named in the new directory but would have 0 bytes of data (I assume this is the file during which the transfer stalled).

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: nautilus 1:3.6.3-0ubuntu16
ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Sat May 4 13:47:58 2013
GsettingsChanges:
 b'org.gnome.nautilus.window-state' b'geometry' b"'927x1028+993+24'"
 b'org.gnome.nautilus.window-state' b'maximized' b'true'
InstallationDate: Installed on 2013-04-26 (8 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: nautilus
UpgradeStatus: No upgrade log present (probably fresh install)