Michal Hocko wrote:

There is one notable exception to this, though, if the OOM victim was
in the process of coredumping the result would be incomplete. This is
considered a reasonable constrain because the overall system health is
more important than debugability of a particular application.

Is it possible to clarify what "the result would be incomplete" mean?

  (1) The size of coredump file becomes smaller than it should be, and
      data in reaped pages is not included into the file.

  (2) The size of coredump file does not change, and data in reaped pages
      is included into the file as NUL byte.

  (3) The size of coredump file does not change, and data in reaped pages
      is included into the file as-is (i.e. information leak security risk).

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