Comment 1 for bug 2060924

 The OS will pop out the "detected conn error (1020)" after run command "systemctl restart iscsid" and command "systemctl restart open-iscsi" I've open debug mode of module "scsi_tcp, libiscsi, scsi_transport_iscsi" and have the journal log and sosreport log for you.

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 Apr 10 07:48:27 test kernel: scsi host18: iSCSI Initiator over TCP/IP
 Apr 10 07:48:28 test kernel: connection2:0: detected conn error (1020)
 Apr 10 07:48:28 test iscsid[3302]: Could not set session2 priority. READ/WRITE throughout and latency could be affected.
 Apr 10 07:48:28 test iscsid[3302]: Login failed to authenticate with target iqn.1986-03.com.ibm:2145.v7000gen2.node2
 Apr 10 07:48:28 test iscsid[3302]: session 2 login rejected: Initiator failed authentication with target
 Apr 10 07:48:28 test iscsid[3302]: Connection2:0 to [target: iqn.1986-03.com.ibm:2145.v7000gen2.node2, portal: 9.0.0.22,3260] through [iface: default] is shutdown

 Apr 10 07:59:34 test iscsiadm[4267]: iscsiadm: initiator reported error (24 - iSCSI login failed due to authorization failure)
 Apr 10 07:59:34 test iscsiadm[4267]: iscsiadm: Could not login to [iface: default, target: iqn.1986-03.com.ibm:2145.v7000gen2.node2, portal: 9.0.0.22,3260].
 Apr 10 07:59:34 test iscsiadm[4267]: iscsiadm: initiator reported error (24 - iSCSI login failed due to authorization failure)
 Apr 10 07:59:34 test iscsiadm[4267]: iscsiadm: Could not log into all portals
 Apr 10 07:59:34 test iscsiadm[4267]: Logging in to [iface: default, target: iqn.1986-03.com.ibm:2145.v7000gen2.node2, portal: 2000:0501:ffff:0100:0000:0000:0000:0666,3260]
Apr 10 07:59:34 test iscsiadm[4267]: Logging in to [iface: default, target: iqn.1986-03.com.ibm:2145.v7000gen2.node2, portal: 9.0.0.22,3260]
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