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 1835340

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

** Tags added: eoan

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https://bugs.launchpad.net/bugs/1835340

Title:
  [HMEM] kmem: clear poison reported via mce or ACPI patrol scrub
  notifications

Status in intel:
  New
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Description:

  During run-time, the kernel can be notified of new/latent errors in
  two different ways:

  If an application trips over a latent/unknown error, and if the system has 
machine check recovery, then we will be notified via the mce handler, and the 
app will be killed. In this case, the kernel should take the chance to go 
clear-errors for that page, and re-online it so it can be used again in the 
future.
  If the 'patrol scrubber' discovers an error on a yet-to-be-accessed location, 
it can send an ACPI notification to the nfit driver. In this case, the kernel 
should go clear the error if the page is not in use. If it is in use, the 
application that has it mapped may need to killed as in case 1 above.
  This additional run-time handling of errors will augment (and be 
complimentary to) the init-time handling in userspace, and having both will 
give us the best possible coverage for media errors.

  Target Release: 19.10
  Target Kernel: TBD

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