Here is the dmesg from ib_iser debug_level=2 while doing a discovery via
iser.
[512042.466216] iscsi: registered transport (iser)
[512140.195141] iser: iser_connect:connecting to: 192.168.111.100, port
0xbd0c
[512140.195896] iser: iser_cma_handler:event 1 status -19 conn
ffff8800d03462c8 id ffff8806acc0ac00
[512140.195901] iser: iscsi_iser_ep_poll:ib conn ffff8800d03462c8 rc = -1
[512140.195922] iser: iscsi_iser_ep_disconnect:ep ffff8800d0346000 ib conn
ffff8800d03462c8 state 4
[512140.195923] iser: iser_conn_terminate:Failed to disconnect, conn:
0xffff8800d03462c8 err -22
[512140.195925] iser: iser_free_ib_conn_res:freeing conn ffff8800d03462c8
cma_id ffff8806acc0ac00 qp (null)
[512141.197712] iser: iser_connect:connecting to: 192.168.111.100, port
0xbd0c
[512141.198377] iser: iser_cma_handler:event 1 status -19 conn
ffff8807a271a2c8 id ffff88079fe4e000
[512141.198383] iser: iscsi_iser_ep_poll:ib conn ffff8807a271a2c8 rc = -1
[512141.198403] iser: iscsi_iser_ep_disconnect:ep ffff8807a271a000 ib conn
ffff8807a271a2c8 state 4
[512141.198405] iser: iser_conn_terminate:Failed to disconnect, conn:
0xffff8807a271a2c8 err -22
[512141.198408] iser: iser_free_ib_conn_res:freeing conn ffff8807a271a2c8
cma_id ffff88079fe4e000 qp (null)
[512142.200339] iser: iser_connect:connecting to: 192.168.111.100, port
0xbd0c
[512142.200893] iser: iser_cma_handler:event 1 status -19 conn
ffff8807a2cd62c8 id ffff8807eff77000
[512142.200899] iser: iscsi_iser_ep_poll:ib conn ffff8807a2cd62c8 rc = 0
[512143.203350] iser: iscsi_iser_ep_poll:ib conn ffff8807a2cd62c8 rc = -1
[512143.203403] iser: iscsi_iser_ep_disconnect:ep ffff8807a2cd6000 ib conn
ffff8807a2cd62c8 state 4
[512143.203410] iser: iser_conn_terminate:Failed to disconnect, conn:
0xffff8807a2cd62c8 err -22
[512143.203416] iser: iser_free_ib_conn_res:freeing conn ffff8807a2cd62c8
cma_id ffff8807eff77000 qp (null)
[512144.205638] iser: iser_connect:connecting to: 192.168.111.100, port
0xbd0c
[512144.205781] iser: iscsi_iser_ep_poll:ib conn ffff8807a271a2c8 rc = 0
[512144.205790] iser: iser_cma_handler:event 1 status -19 conn
ffff8807a271a2c8 id ffff88079fe49000
On Thursday, October 16, 2014 1:38:21 AM UTC-7, Or Gerlitz wrote:
>
>
> On 10/16/2014 02:30 AM, Mike Christie wrote:
> > On 10/14/2014 01:50 PM, Moussa Ba wrote:
> >> iscsiadm: iscsi_create_leading_conn discovery ep connect
> >>
> >> iscsiadm: in ktransport_ep_connect
> >> iscsiadm: in __kipc_call
> >> iscsiadm: in kwritev
> >> iscsiadm: in nlpayload_read
> >> iscsiadm: in nlpayload_read
> >> iscsiadm: ktransport_ep_connect got handle 1
> >> iscsiadm: in ktransport_ep_poll
> >> iscsiadm: in __kipc_call
> >> iscsiadm: in kwritev
> >> iscsiadm: in nlpayload_read
> >> iscsiadm: in nlpayload_read
> >> iscsiadm: in ktransport_ep_disconnect
> >> iscsiadm: in __kipc_call
> >> iscsiadm: in kwritev
> >> iscsiadm: in nlpayload_read
> >> iscsiadm: in nlpayload_read
> >> iscsiadm: in ctldev_close
> >> iscsiadm: Connection to discovery portal 192.168.111.100 failed:
> >> encountered connection failure
> >> iscsiadm: discovery session to 192.168.111.100:3261 sleeping for 1
> >> seconds before next login attempt
> > Or and Sagi, it looks like we are hitting this in the userspace
> > discovvery connection code:
> >
> > do {
> > rc = t->template->ep_poll(conn, 1);
> > if (rc < 0) {
> > rc = ISCSI_ERR_TRANS;
> > goto disconnect;
> >
> > So I think iscsi_iser_ep_poll either returned -1 or -ERESTARTSYS. It was
> > probably not -ERESTARTSYS and the
> > wait_for_completion_interruptible_timeout call probably timed out. Did
> > we hit
> >
> > mutex_lock(&ib_conn->state_mutex);
> > if (ib_conn->state == ISER_CONN_TERMINATING ||
> > ib_conn->state == ISER_CONN_DOWN)
> > rc = -1;
> > mutex_unlock(&ib_conn->state_mutex);
> >
> > then? What would be the reason for that? Target not setup to take iser
> > ib connections?
> >
> Mike, It's hard for me to tell now... also the team has a holiday, but
> it would worth if Moussa would set debug_level=2 for the ib_iser kernel
> module and send the resulted dmesg when he runs the discovery attempt.
> Ariel/Sagi - note it is 3.16
>
> Or.
>
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