cifs mount options "uid,gid" broken

[Robert Jordens]

Binary package hint: smbfs

If a cifs share is mounted with uid=bla specified, that forced mapping is inactive for a short time after the creation of a new directory. I did not find any upstream bug that describes the same problem.
The following transcript shows the situation. Reproducible on any share (windows server, xp or samba).

[52/4940]rj@frazzle:/tmp$ sudo mount -t cifs -o credentials=/etc/samba/phys-robertjo-creds,uid=rj,gid=rj //winhome/robertjo test/
[53/4941]rj@frazzle:/tmp$ cd test
[55/4943]rj@frazzle:/tmp/test$ mkdir a
[56/4944]rj@frazzle:/tmp/test$ mkdir a/b
[57/4945]rj@frazzle:/tmp/test$ ls -ld a a/b
drwxr-xr-x 3 rj rj 0 2008-04-25 15:16 a/
drwxr-xr-x 2 rj rj 0 2008-04-25 15:16 a/b/
[58/4946]rj@frazzle:/tmp/test$ rm -r a
[59/4947]rj@frazzle:/tmp/test$ mkdir -p a/b
mkdir: cannot create directory `a/b': Permission denied
[60/4948]rj@frazzle:/tmp/test$ ls -ld a
drwxr-xr-x 2 rj rj 0 2008-04-25 15:17 a/
[61/4949]rj@frazzle:/tmp/test$ mkdir a/b
[62/4950]rj@frazzle:/tmp/test$ ls -ld a/b
drwxr-xr-x 2 rj rj 0 2008-04-25 15:17 a/b/
[63/4951]rj@frazzle:/tmp/test$ rm -r a
[64/4952]rj@frazzle:/tmp/test$ mkdir a; mkdir a/b
mkdir: cannot create directory `a/b': Permission denied
[65/4953]rj@frazzle:/tmp/test$ rm -r a
[66/4954]rj@frazzle:/tmp/test$ mkdir a; sleep 1; mkdir a/b
[67/4955]rj@frazzle:/tmp/test$ ls -ld a a/b
drwxr-xr-x 3 rj rj 0 2008-04-25 15:17 a/
drwxr-xr-x 2 rj rj 0 2008-04-25 15:17 a/b/
[68/4956]rj@frazzle:/tmp/test$ rm -r a
[69/4957]rj@frazzle:/tmp/test$ mkdir a; ls -ld a; sleep 1; ls -ld a
drwxr-xr-x 2 3008 1019 0 2008-04-25 15:17 a/
drwxr-xr-x 2 rj rj 0 2008-04-25 15:17 a/
[70/4958]rj@frazzle:/tmp/test$ rm -r a

(3008/1019 are the uid/gid on the samba server)

Workaround:
   use noperm as a mount option. but that opens up the mount to everyone locally.

Description: Ubuntu 8.04
Release: 8.04
smbfs:
  Installed: 3.0.28a-1ubuntu4
  Candidate: 3.0.28a-1ubuntu4
  Version table:
 *** 3.0.28a-1ubuntu4 0
        500 http://ch.archive.ubuntu.com hardy/main Packages
        100 /var/lib/dpkg/status

[Leann Ogasawara (leannogasawara)]

The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test:

1) If you are comfortable installing packages on your own, the linux-image-2.6.27-* package is currently available for you to install and test.

--or--

2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD.

Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback.

[Robert Jordens (jordens)]

This bug still applies (2.6.27-7-generic)

[Launchpad Janitor (janitor)]

Per a decision made by the Ubuntu Kernel Team, bugs will longer be assigned to the ubuntu-kernel-team in Launchpad as part of the bug triage process. The ubuntu-kernel-team is being unassigned from this bug report. Refer to https://wiki.ubuntu.com/KernelTeamBugPolicies for more information. Thanks.

[kernel-janitor (kernel-janitor)]

This bug report was marked as Triaged a while ago but has not had any updated comments for quite some time. Please let us know if this issue remains in the current Ubuntu release, http://www.ubuntu.com/getubuntu/download . If the issue remains, click on the current status under the Status column and change the status back to "New". Thanks.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Robert Jordens (jordens)]

still persists in jaunty 2.6.28-13-generic

[Alex Sidorenko (asid)]

This seems to be similar to

http://patchwork.kernel.org/patch/9046/

Ubuntu/Karmic kernel (2.6.31) has completely redesigned cifs/inode.c and the problem has disappeared

Alex

[Robert Jordens (jordens)]

The problem does not appear anymore in karmic and lucid.

[Mitch Towner (kermiac)]

Invalidating wrongly set bug tasks & cleaning up tags.

@ Fail2Ban: Please do not add new tasks to bug reports or add tags without commenting to advise why you have done this.
Thanks in advance!