Comment 8 for bug 1799579

Some reasons why I think this is an issue with the firmware of the Tuleta:

1. MAAS is already configuring "Lan_Privilege_Limit" to "Administrator" for each BMC. The documentation states-

# For IPMI over LAN access for a username, set "Enable_User" to "Yes",
# "Lan_Enable_IPMI_Msgs" to "Yes", and "Lan_Privilege_Limit" to a privilege
# level. The privilege level is used to limit various IPMI operations for
# individual usernames. It is recommened that atleast one username be created
# with a privilege limit "Administrator", so all system functions are available
# to atleast one username via IPMI over LAN.

2. Below is part of the output of `bmc-config --checkout` for a working BMC. This shows us the settings that MAAS is
   creating by default.

Section User2
 ## Give Username
 Username maas
 ## Give password or blank to clear. MAX 16 chars (20 chars if IPMI 2.0 supported).
 ## Password
 ## Possible values: Yes/No or blank to not set
 Enable_User Yes
 ## Possible values: Yes/No
 Lan_Enable_IPMI_Msgs Yes
 ## Possible values: Yes/No
 Lan_Enable_Link_Auth No
 ## Possible values: Yes/No
 Lan_Enable_Restricted_to_Callback No
 ## Possible values: Callback/User/Operator/Administrator/OEM_Proprietary/No_Access
 Lan_Privilege_Limit Administrator
 ## Possible values: 0-17, 0 is unlimited; May be reset to 0 if not specified
 ## Lan_Session_Limit
 ## Possible values: Yes/No
 SOL_Payload_Access No
EndSection

As we can see we are creating the maas user with Administrator privileges.

For the machine that we are seeing issues with we get-

ubuntu@autopkgtest:~$ sudo bmc-config --checkout -D LAN_2_0 -h 10.245.143.113 -u maas -p bBfqnAAfllCf4H
ipmi_cmd_get_sol_configuration_parameters_sol_payload_channel: session timeout

3. bmc-info command for the machine causing issues. Shows the machine is up and running:

ubuntu@autopkgtest:~$ sudo bmc-info -D LAN_2_0 -h 10.245.143.113 -u maas -p bBfqnAAfllCf4H
Device ID : 32
Device Revision : 0
Device SDRs : unsupported
Firmware Revision : 8.61
Device Available : yes (normal operation)
IPMI Version : 2.0
Sensor Device : supported
SDR Repository Device : supported
SEL Device : supported
FRU Inventory Device : supported
IPMB Event Receiver : supported
IPMB Event Generator : supported
Bridge : supported
Chassis Device : unsupported
Manufacturer ID : IBM Platform Firmware Division (42817)
Product ID : 306
Auxiliary Firmware Revision Information : 00000000h

System GUID : 902b4c94-be98-a60b-01da-a86497788eb4

Channel Information

Channel Number : 1
Medium Type : 802.3 LAN
Protocol Type : IPMB-1.0
Active Session Count : 2
Session Support : multi-session
Vendor ID : Intelligent Platform Management Interface forum (7154)

Channel Number : 1
Medium Type : 802.3 LAN
Protocol Type : IPMB-1.0
Active Session Count : 2
Session Support : multi-session
Vendor ID : Intelligent Platform Management Interface forum (7154)

Channel Number : 1
Medium Type : 802.3 LAN
Protocol Type : IPMB-1.0
Active Session Count : 2
Session Support : multi-session
Vendor ID : Intelligent Platform Management Interface forum (7154)