Oh, sadly -89 doesn't work either; ok.

Yup, bisecting to find the specific issue/commit would be nice, to get a
better pointer.

On the quick path front, if you still have the time for another test,
could you please try the 5.4 kernel on Focal?

It should install/boot fine on Bionic, done that myself recently --
something along the lines of:

$ echo 'deb http://archive.ubuntu.com/ubuntu focal main restricted' | sudo tee 
/etc/apt/sources.list.d/focal.list
$ sudo apt update
$ sudo apt install linux-{image,modules}-5.4.0-9-generic # check that only the 
kernel packages are installed / come from Focal.
$ sudo rm /etc/apt/sources.list.d/focal.list

cheers,
Mauricio

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1863044

Title:
  qla2xxx no longer detects LUNs with 4.15.0-74+ on IBM BladeCenter

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  We have an IBM BladeCentre Hx5 with a number of blades running Ubuntu
  18.04.3. Storage is attached over Fiber Channel.

  They all boot fine with 4.15.0-72 - the qla2xxx detects all the LUNs.
  On 4.15.0-74 and 4.15.0-76, the qla2xxx driver loads but the LUNs are
  not detected. This breaks the boot. rescan-scsi-bus.sh is also unable
  to find the LUNs. Reverting to the 4.15.0-72 kernel works.

  lspci reports:

  06:00.0 Fibre Channel: QLogic Corp. ISP2532-based 8Gb Fibre Channel to PCI 
Express HBA (rev 02)
        Subsystem: QLogic Corp. ISP2532-based 8Gb Fibre Channel to PCI Express 
HBA
        Flags: bus master, fast devsel, latency 0, IRQ 24, NUMA node 0
        I/O ports at 2c00 [size=256]
        Memory at 903fc000 (64-bit, non-prefetchable) [size=16K]
        Expansion ROM at 90300000 [disabled] [size=256K]
        Capabilities: [44] Power Management version 3
        Capabilities: [4c] Express Endpoint, MSI 00
        Capabilities: [88] MSI: Enable- Count=1/32 Maskable- 64bit+
        Capabilities: [98] Vital Product Data
        Capabilities: [a0] MSI-X: Enable+ Count=2 Masked-
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [138] Power Budgeting <?>
        Kernel driver in use: qla2xxx
        Kernel modules: qla2xxx

  Let me know if you need any more details. I attach a version.log and
  lspci-vnvn.log from a working -72 boot.

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