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[9.3] [Build] Add flag to revert to glibc 2.42 memory management (#255699)#260563

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Ikuni17 merged 2 commits into
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Apr 1, 2026
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[9.3] [Build] Add flag to revert to glibc 2.42 memory management (#255699)#260563
Ikuni17 merged 2 commits into
elastic:9.3from
Ikuni17:backport/9.3/pr-255699

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@Ikuni17 Ikuni17 commented Mar 31, 2026

Backport

This will backport the following commits from main to 9.3:

Questions ?

Please refer to the Backport tool documentation

…55699)

## Summary

Reverts elastic#255691

Newer Chainguard images updated to `glibc 2.43` which changes memory
allocation behavior. Adding this flag reverts that behavior and allows
us to unblock Chainguard image updates.

See
https://groups.google.com/a/elastic.co/g/support_team/c/RBgzGXEdyR8/m/MxtQhaAmCQAJ
for more details.

(cherry picked from commit 9f346df)

# Conflicts:
#	src/dev/build/tasks/os_packages/docker_generator/run.ts
#	src/dev/build/tasks/os_packages/docker_generator/templates/base/Dockerfile
@Ikuni17 Ikuni17 requested a review from kibanamachine as a code owner March 31, 2026 19:28
@Ikuni17 Ikuni17 added the backport This PR is a backport of another PR label Mar 31, 2026
@Ikuni17 Ikuni17 enabled auto-merge (squash) March 31, 2026 19:28
@Ikuni17 Ikuni17 self-assigned this Mar 31, 2026
@Ikuni17 Ikuni17 added ci:cloud-deploy Create or update a Cloud deployment ci:cloud-redeploy Always create a new Cloud deployment labels Mar 31, 2026
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Ikuni17 commented Mar 31, 2026

buildkite test this

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elasticmachine commented Apr 1, 2026

💚 Build Succeeded

Metrics [docs]

✅ unchanged

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cc @Ikuni17

@Ikuni17 Ikuni17 disabled auto-merge April 1, 2026 02:03
@Ikuni17 Ikuni17 merged commit 5d42074 into elastic:9.3 Apr 1, 2026
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@Ikuni17 Ikuni17 deleted the backport/9.3/pr-255699 branch April 1, 2026 02:03
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