Tim,
We're seeing some unrelated issues with the arm64 test kernel you shared.
Is it possible for you to provide arm64 test kernel that is based on
5.15.0-39 instead of 5.15.0-37?

Thanks,
Vishnu

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https://bugs.launchpad.net/bugs/1978145

Title:
  Request to back port vmci patches to Ubuntu kernel

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  SRU Justification

  [Impact]

  The request is to bring vmci to TOT and back port the following patches into
  Ubuntu kernels.

  1.  fac608138c6136126faadafa5554cc0bbabf3c44 ("VMCI: dma dg: whitespace 
formatting change for vmci register defines")
  2.  e283a0e8b7ea83915e988ed059384af166b444c0 ("VMCI: dma dg: add MMIO access 
to registers")
  3.  eed2298d936087a1c85e0fa6f7170028e4f4fded ("VMCI: dma dg: detect DMA 
datagram capability")
  4.  8cb520bea1470ca205980fbf030ed1f472f4af2f ("VMCI: dma dg: set OS page 
size")
  5.  cc68f2177fcbfe2dbe5e9514789b96ba5995ec1e ("VMCI: dma dg: register dummy 
IRQ handlers for DMA datagrams")
  6.  5ee109828e73bbe4213c373988608d8f33e03d78 ("VMCI: dma dg: allocate send 
and receive buffers for DMA datagrams")
  7.  22aa5c7f323022477b70e044eb00e6bfea9498e8 ("VMCI: dma dg: add support for 
DMA datagrams sends")
  8.  463713eb6164b6577f8e91447c7745628215531b ("VMCI: dma dg: add support for 
DMA datagrams receive")
  9.  77e861619baea5a7c934e47fda74b03c0b072aec ("VMCI: Fix some error handling 
paths in vmci_guest_probe_device()")
  10. c8e9b30ccae605bf1dbeaf03971f9b83f70b928d ("VMCI: Release 
notification_bitmap in error path")
  11. 5df0e734b8c39598effe0f17e5bd8ff7748a0693 ("VMCI: Check exclusive_vectors 
when freeing interrupt 1")
  12. 1f7142915d304804a9bd952245fce92786b1b62f ("VMCI: Add support for ARM64")
  13. ba03a9bbd17b149c373c0ea44017f35fc2cd0f28 ("VMCI: Release resource if the 
work is already queued")

  There is a new version of the VMCI device. Patches #1 to #11 provide
  support for that, see [1] for some information on what is new.  #12
  adds arm64 support (we only support the new version of the VMCI device
  in arm64, but both old and new versions of VMCI device are supported
  in x86). #13 is a general bugfix.  All 13 patches can build on both
  x86 and arm64.

  [1]
  https://lore.kernel.org/all/20220203131237.3380-1-jhan...@vmware.com

  [Test Case]

  VMWARE tested

  [Where things could go wrong]

  The VMCI device driver could fail.

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