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A degraded EC read will allocate and register an extra buffer to recover data, which may cause ENOMEM in some cases.

this workaround does not prevent dynamic buffer allocation and registration, it does provide relatively precise control over the resources consumed by degraded EC reads.

Steps for the author:

  • Commit message follows the guidelines.
  • Appropriate Features or Test-tag pragmas were used.
  • Appropriate Functional Test Stages were run.
  • At least two positive code reviews including at least one code owner from each category referenced in the PR.
  • Testing is complete. If necessary, forced-landing label added and a reason added in a comment.

After all prior steps are complete:

  • Gatekeeper requested (daos-gatekeeper added as a reviewer).

A degraded EC read will allocate and register an extra buffer
to recover data, which may cause ENOMEM in some cases.

this workaround does not prevent dynamic buffer allocation and
registration, it does provide relatively precise control over the
resources consumed by degraded EC reads.

Signed-off-by: Liang Zhen <gnailzenh@gmail.com>
@gnailzenh gnailzenh requested review from a team as code owners January 24, 2026 03:00
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Errors are Unable to load ticket data
https://daosio.atlassian.net/browse/DAOS-18487

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