Cray has identified an issue with ipmitool LAN commands on Jefferson Pass, Kennedy Pass and Wildcat Pass Intel platforms. An error is received following an ipmitool power command over the LAN interface and has been reproduced across all BIOS/BMC firmware releases. Example:
#ipmitool -I lanplus -H <addr> -U <username > -P <password> chassis power cycle Errors received are: >Close Session command failed >Error: Unable to establish IPMI v2 / RMCP+ session >Unable to set Chassis Power Control to Cycle Note that when these commands are run locally, no error is observed. Additionally, when a power cycle is run remotely over LAN, the remote server does actually respond to the request and performs the cycle – there appears to be a timing issue on the sender’s end in that it does not receive the response from the remote server. Intel has stated that there appears to be a race condition for the BMC after the reset command is issued, and that a possible solution might be to issue a pause into the power cycle command to give it time to finish the close session command. Please let us know if there is any recourse for us to work towards a resolution. Thanks, Ben Weisnicht bweisni...@cray.com<mailto:bweisni...@cray.com>
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