This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:

apport-collect 2008750

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/2008750

Title:
  [SRU] Daxctl gets the error of resource busy on HBM devices

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  [Impact]
  On Ubuntu, it gets the error of "Device or resource busy."

  fuser shows that the kernel thread "kdevtmpfs" is occupying the HBMs.

  I tried to build a kernel without CONFIG_DEVTMPFS set.
  But it got stuck in initramfs

  If it is possible, please get this issue a quick triage,
  just to get a basic estimate how hard this issue is and
  how much effort is needed for Ubuntu for support it.

  
  [Fix]

  [Test Plan]

  [Where problems could occur]

  [Other Info]

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