"isert: isert_setup_id: rdma_bind_addr() failed: -19" spam, followed by Recursive Fault on reboot

[Stevie Trujillo]

Hello

I'm trying (failing) to get iSER working. After rebooting with some settings
saved in targetcli, I got an endless stream of messages like this:

[  192.701299] isert: isert_setup_id: rdma_bind_addr() failed: -19
[  192.702733] isert: isert_setup_id: rdma_bind_addr() failed: -19
[  192.704021] isert: isert_setup_id: rdma_bind_addr() failed: -19
[  192.705458] isert: isert_setup_id: rdma_bind_addr() failed: -19
[  192.706979] isert: isert_setup_id: rdma_bind_addr() failed: -19

I tried deleting everything from targetcli, but the flood would not stop. The
ib_isert module did not unload. When rebooting I got a "Recursive Fault"
with a stacktrace inside configfs.

I hope this is enough information to fix this bug. I assumed the stacktrace
would be saved to the log so I didn't write it down, and I haven't been able to
retrace all the wrong stuff I did trying to make iSER work.

Linux Version: Linux 4.8.15-2~bpo8+2 (Debian 8 Backports)

--
Stevie Trujillo