Dear fellow upstream OpenStackers, I tagged the main projects that use vbmc intensively because I have a question regarding the stability of vbmc. I have been working on adding baremetal testing in Kolla Ansible using Tenks and thus also VirtualBMC. I am encountering random failures that I am at the moment unable to debug. It seems vbmc likes to reject the "chassis bootdev pxe" ipmitool command from time to time (the command is issued when trying to deploy a host). This seems permanent per case as ironic retries this call several times only to fail. The error message is "Error setting Chassis Boot Parameter 5". I can't see any trace in vbmc logs (with DEBUG enabled). Other ipmitool commands seem to work fine (like periodic power status). I was wondering if any of you also experienced this issue. I am providing a link to an excerpt from the logs. [1] It also shows a raw ipmitool command succeeding only to let the next one fail. [1] https://paste.ubuntu.com/p/MgHHpDvVGf/ -yoctozepto