[LU-1152] ls: cannot open directory .: Permission denied

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Affects Version/s: Lustre 1.8.7
• Environment: Client: 1.8.7-wc1, 2.6.32-131.12.1.el6.x68_64; Server: 1.8.4
• Severity: 3

Epic

client

• Assignee: Zhenyu Xu
• Reporter: Ben Evans (Inactive)

Description

mount lustre on /mnt
ls /mnt (works)
cd /mnt/blah (works)
ls
ls: cannot open directory .: Permission denied
ls foo (works)
ls /mnt/blah (fails)
ls /mnt/blah/foo (works)

Running strace on ls, I get permission denied opening '.', regardless of directory permissions.

Issue Links

• Trackbacks: Lustre 1.8.x known issues tracker While testing against Lustre b18 branch, we would hit known bugs which were already reported in Lustre Bugzilla https://bugzilla.lustre.org/. In order to move away from relying on Bugzilla, we would create a JIRA

Comments

[Zhenyu Xu]

Would you mind enabling all debug message level "lctl set_param debug=-1" on client and servers, and collecting debug logs (client node as well as MDS server) during these operations? So that we can check out what the problem might be.

[Ben Evans (Inactive)]

drwxrwxrwx (I've tried many permutations around that theme, none work)

[Zhenyu Xu]

what's the permission/acl output of /mnt/blah ?

[Ben Evans (Inactive)]

ls -l /mnt displays everything correctly, but it is the only thing that does.

[Zhenyu Xu]

what's the output of "ls -l /mnt/"?

[Peter Jones]

Bobi

Could you please comment on this one?

Thanks

Peter

[Ben Evans (Inactive)]

sorry, I should clarify, an older Lustre Client/kernel version combo works fine.

also, in addition:

touch /mnt/tmp/foo
ls /mnt/tmp/foo

does work. I'm thinking there's some special handling of '.' that's causing an issue that I'm running into.

[Ben Evans (Inactive)]

The user was root. I can run on an older Lustre/FS combo and it works.

I can do the following and it still fails:

mkdir /mnt/tmp
cd /mnt/tmp
ls

[Cliff White (Inactive)]

The user and group id's must be known the MDS, is the user in the MDS password files? Check the client and MDS system logs for errors.