** Attachment added: "test-iscsi.sh" https://bugs.launchpad.net/ubuntu/+source/iscsitarget/+bug/967984/+attachment/3292185/+files/test-iscsi.sh
** Description changed: [Impact] Administrators will not be able to delete targets even when all sessions are inactive. [Test Case] + (script attached to bug report as well) sudo apt-get install iscsitarget open-iscsi echo "ISCSITARGET_ENABLE=true" | sudo tee /etc/default/iscsitarget sudo service iscsitarget restart sudo dd if=/dev/zero of=/fs.iscsi.disk bs=1M count=512 sudo ietadm --op new --tid=1 --params=Name=mytarget sudo ietadm --op new --tid=1 --lun=0 --params=Path=/fs.iscsi.disk cat /proc/net/iet/session cat /proc/net/iet/volume sudo iscsiadm -m discovery -t st -p 127.0.0.1:3260 sudo iscsiadm -m node -T mytarget -p 127.0.0.1:3260 --login cat /proc/net/iet/session cat /proc/net/iet/volume sudo iscsiadm -m session --logout sudo ietadm --op delete --tid=1 cat /proc/net/iet/session cat /proc/net/iet/volume Failure is indicated by "Device or resource busy." during the delete operation. [Regression Potential] The fix is in the event layer of the DKMS module; it ensures that the session removal event gets to the ietd with kernels >= 3.2. [Original Bug Report] 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. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/967984 Title: iSCSI target administration utility (ietadm) not detecting inactive sessions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/iscsitarget/+bug/967984/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
