You have been subscribed to a public bug by Robbie Williamson (robbiew):
Using up to date Ubuntu precise (3/28/12) with:
iscsitarget - 1.4.20.2-5ubuntu2
iscsitarget-dkms - 1.4.20.2-5ubuntu2
iSCSI target administration utility appears to not detect inactive
sessions correctly.
Replicating bug:
creating a sparse image:
dd if=/dev/zero of=/fs.iscsi.disk bs=1M count=512
then creating target:
root@ubuntu-precise:~# ietadm --op new --tid=1 --params=Name=mytarget
root@ubuntu-precise:~# ietadm --op new --tid=1 --lun=0
--params=Path=/fs.iscsi.disk
shows available:
root@ubuntu-precise:~# cat /proc/net/iet/session
tid:1 name:mytarget
root@ubuntu-precise:~# cat /proc/net/iet/volume
tid:1 name:mytarget
lun:0 state:0 iotype:fileio iomode:wt blocks:1048576 blocksize:512
path:/fs.iscsi.disk
login by client is successful:
root@ubuntu-precise:~# iscsiadm -m node -T mytarget -p 172.16.2.133:3260 --login
Logging in to [iface: default, target: mytarget, portal: 172.16.2.133,3260]
Login to [iface: default, target: mytarget, portal: 172.16.2.133,3260]:
successful
and shows active session:
root@ubuntu-precise:~# cat /proc/net/iet/session
tid:1 name:mytarget
sid:281475014263296 initiator:iqn.1993-08.org.debian:01:2f524641a62d
cid:0 ip:172.16.2.133 state:active hd:none dd:none
ietadm properly shows active and refuses to delete which is expected:
root@ubuntu-precise:~# ietadm --op delete --tid=1
Device or resource busy.
client logs out:
root@ubuntu-precise:~# iscsiadm -m session --logout
Logging out of session [sid: 2, target: mytarget, portal: 172.16.2.133,3260]
Logout of [sid: 2, target: mytarget, portal: 172.16.2.133,3260]: successful
no longer shows session active:
root@ubuntu-precise:~# cat /proc/net/iet/session
tid:1 name:mytarget
but ietadm refuses to acknowledge the disconnect and release the target
and a ietadm delete fails saying "in use":
root@ubuntu-precise:~# ietadm --op delete --tid=1
Device or resource busy.
** Affects: iscsitarget (Ubuntu)
Importance: Undecided
Status: Confirmed
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iSCSI target administration utility (ietadm) not detecting inactive sessions
https://bugs.launchpad.net/bugs/967984
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