.zfs directory, of a dataset, not showing one snapshot directory

[flaviomreis]

Hello, sorry my english, I am brazilian

I have a pool named pool01 with a dataset named testa/bb. This dataset is teaching dataset, it is small. In this dataset I have the following snapshots:

# zfs list -t all -r testa/bb
NAME         USED  AVAIL  REFER  MOUNTPOINT
testa/bb     143K  62,2M    30K  /testa/bb
testa/bb@b    19K      -    30K  -
testa/bb@c    19K      -    30K  -
testa/bb@d    19K      -    30K  -
testa/bb@e    19K      -    30K  -
testa/bb@f    19K      -    30K  -
testa/bb@g    18K      -    30K  -

And a ls in /testa/bb (the mountpoint), I receive:

# ls -al /testa/bb/.zfs/snapshot/
total 0
dr-xr-xr-x 2 root root 2 Nov 24 10:43 .
dr-xr-xr-x 1 root root 0 Nov 24 10:43 ..
dr-xr-xr-x 1 root root 0 Nov 24 10:43 b
dr-xr-xr-x 1 root root 0 Nov 24 10:43 c
dr-xr-xr-x 1 root root 0 Nov 24 10:43 d
dr-xr-xr-x 1 root root 0 Nov 24 10:43 f
dr-xr-xr-x 1 root root 0 Nov 24 10:43 g

Where is the directoy "e", corresponding to snapshot "e"?

This directory is showed with a ls -dla:

# ls -dla /testa/bb/.zfs/snapshot/e
dr-xr-xr-x 1 root root 0 Nov 24 11:45 /testa/bb/.zfs/snapshot/e

I can access the directory "e" and list files:

# cd /testa/bb/.zfs/snapshot/e
# pwd
/testa/bb/.zfs/snapshot/e
# ls -al
total 4
drwxr-xr-x 2 root root 7 Nov 24 10:35 .
dr-xr-xr-x 3 root root 3 Nov 24 10:43 ..
-rw-r--r-- 1 root root 0 Nov 24 10:25 a
-rw-r--r-- 1 root root 0 Nov 24 10:25 b
-rw-r--r-- 1 root root 0 Nov 24 10:25 c
-rw-r--r-- 1 root root 0 Nov 24 10:25 d
-rw-r--r-- 1 root root 0 Nov 24 10:35 e

# dmesg | grep SPL
[    5.738688] SPL: Loaded module v0.6.3-1_gf6a8696
[    6.876229] SPL: using hostid 0x007f0101
# dmesg | grep ZFS
[    6.065538] ZFS: Loaded module v0.6.3-14_g1e8db77, ZFS pool version 5000, ZFS filesystem version 5

I send the dataset to a file, but I dont know how attach here. It's a small file, 110kb.

Whats happening. How can I relate this?

Thanks,

[behlendorf]

There's a fix for this issue in #2797. If you could test the patch stack there and verify it fixes your issue that would be helpful.