[Bug 259152] [iscsi] ExpDataSN mismatch in SCSI Response (unable to connect or authenticate to OCI oracle iscsi block devices)

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 13 Oct 2021 22:16:08 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=259152

--- Comment #4 from Dave Cottlehuber <dch@freebsd.org> ---
commentin out the error handling as added in D31594 as suggested by Ed,
*and* bumping up mtu to 16000, gets us a bit further, but volume is
still inaccessible and causes the new disk to hang.

[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): connection
error; reconnecting
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): PDU 0x0 StatSN
0 != session ExpStatSN 1 (or + 1); reconnecting
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): received PDU
with unsupported opcode 0x0; reconnecting
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): PDU 0x0 StatSN
0 != session ExpStatSN 1 (or + 1); reconnecting
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): received PDU
with unsupported opcode 0x0; reconnecting
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): PDU 0x0 StatSN
0 != session ExpStatSN 1 (or + 1); reconnecting
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): received PDU
with unsupported opcode 0x0; reconnecting
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): PDU 0x0 StatSN
0 != session ExpStatSN 1 (or + 1); reconnecting
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): received PDU
with unsupported opcode 0x0; reconnecting
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): PDU 0x0 StatSN
0 != session ExpStatSN 1 (or + 1); reconnecting
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): received PDU
with unsupported opcode 0x0; reconnecting
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): PDU 0x0 StatSN
0 != session ExpStatSN 1 (or + 1); reconnecting
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): received PDU
with unsupported opcode 0x0; reconnecting
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): PDU 0x0 StatSN
0 != session ExpStatSN 1 (or + 1); reconnecting
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): received PDU
with unsupported opcode 0x0; reconnecting
[2655] WARNING: icl_conn_receive_pdu: received data segment length 16384 is
larger than negotiated; dropping connection
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): connection
error; reconnecting
[2655] WARNING: icl_conn_receive_pdu: received data segment length 16306705 is
larger than negotiated; dropping connection
[2655] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): connection
error; reconnecting
...
[2709] da1 at iscsi1 bus 0 scbus1 target 0 lun 1
da1: <ORACLE BlockVolume 1.0>  detached
[2709] GEOM: da1: corrupt or invalid GPT detected.
[2709] GEOM: da1: GPT rejected -- may not be recoverable.
[2709] g_dev_taste: g_dev_taste(da1) failed to g_attach, error=6
[2709] (da1:iscsi1:0:0:1): Periph destroyed
[2722] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): ExpDataSN
mismatch in SCSI Response (0 vs 1)
[2722] da1 at iscsi2 bus 0 scbus1 target 0 lun 1
da1: <ORACLE BlockVolume 1.0> Fixed Direct Access SPC-4 SCSI device
da1: 150.000MB/s transfers
da1: Command Queueing enabled
da1: 48128MB (98566144 512 byte sectors)
[2722] (da1:iscsi2:0:0:1): READ(6)/WRITE(6) not supported, increasing
minimum_cmd_size to 10.
[2727] WARNING: 169.254.2.7:3260 (iqn.2015-02.oracle.boot:uefi): no ping reply
(NOP-In) after 5 seconds; reconnecting
...

root@a01 /u/h/dch# gpart show

^c
^z

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