Why does iscsi repeatedly log 'session ioctl failed' and 'Could not find session to update' after a reload or SIGHUP on RHEL4?

Solution Verified - Updated -

Issue

  • iscsid sometimes loops on session ioctl ISCSI_ESTABLISH_SESSION
  • The following messages echo until iscsid is restarted.

    Mar  2 15:39:10 node iscsid[17054]: iSCSI session ioctl failed for iqn.1992-08.com.netapp:sn.151701990, Resource temporarily unavailable: Resource temporarily unavailable
    Mar  2 15:39:10 node kernel: iscsi-sfnet: Could not find session to update
    Mar  2 15:39:10 node iscsid[17055]: iSCSI session ioctl failed for iqn.1992-08.com.netapp:sn.151701990, Resource temporarily unavailable: Resource temporarily unavailable
    Mar  2 15:39:11 node iscsid[17054]: iSCSI session ioctl failed for iqn.1992-08.com.netapp:sn.151701990, Resource temporarily unavailable: Resource temporarily unavailable
    Mar  2 15:39:11 node kernel: iscsi-sfnet: Could not find session to update
    Mar  2 15:39:11 node kernel: iscsi-sfnet: Could not find session to update
    

Environment

  • Red Hat Enterprise Linux 4
  • iSCSI storage that performs login IP redirection (includes iSCSI storage from Network Appliance, Equalogic, Cisco and possibly other vendors)
  • iscsi-sfnet software iSCSI initiator in use

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