Public bug reported:

We have a set of servers, equipped with Broadcom BCM57414 NetXtreme-E 10Gb/25Gb 
RDMA Ethernet Controllers.

Booting Ubuntu 24.04 (on 6.8 kernel) on these machines leads to the
bnxt_re driver stalling during boot, and outputting the following kernel
log:

    bnxt_en 0000:ab:00.0: QPLIB: bnxt_re_is_fw_stalled: FW STALL Detected. 
cmdq[0xf]=0x3 waited (102721 > 100000) msec active 1
    bnxt_en 0000:ab:00.0 bnxt_re0: Failed to modify HW QP
    infiniband bnxt_re0: Couldn't change QP1 state to INIT: -110
    infiniband bnxt_re0: Couldn't start port
    bnxt_en 0000:ab:00.0 bnxt_re0: Failed to destroy HW QP

This causes systemd-udev-settle.service to fail:

    udevadm[1212]: Timed out for waiting the udev queue being empty.


After this point, if the machine is PXE booting and/ or provisioning via MaaS 
(which is the case), the provisioning basically fails.

The current workaround is to disable RDMA in the BIOS, thus avoiding loading 
bnxt_en, I believe.
This behavior doesn't seem to affect Ubuntu 22.04 with 5.15 kernel. 


The following Blog seems to explain this issue in great detail:
https://utcc.utoronto.ca/~cks/space/blog/linux/BroadcomNetworkDriverAndRDMA

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2099708

Title:
  Broadcom RDMA over Converged Ethernet driver bnxt_re stalling on 24.04

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