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[release/2.3] Configure udevd children-max for root-test#13568

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[release/2.3] Configure udevd children-max for root-test#13568
samuelkarp merged 1 commit into
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k8s-infra-cherrypick-robot:cherry-pick-13562-to-release/2.3

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This is an automated cherry-pick of #13562

/assign chrishenzie

GHA runners occasionally experience I/O constraints during root-test
test execution. While concurrent tests rapidly allocate loopback
devices, background udev probing stalls. This quickly exhausts
systemd-udevd's default worker pool ceiling (20 children max), stalling
netlink uevent processing so device-mapper device nodes are never
created for subsequent dm-verity test execution.

Logging cgroups v2 pids.peak telemetry confirmed peak in-flight udev
workers accumulate to 325 during test execution. Raising the
children-max limit to 500 provides comfortable buffer room so udevd
freely spawns worker processes without entering event lockup or causing
test timeouts.

Assisted-by: Antigravity
Signed-off-by: Chris Henzie <[email protected]>
@github-project-automation github-project-automation Bot moved this from Needs Triage to Review In Progress in Pull Request Review Jun 10, 2026
@samuelkarp
samuelkarp merged commit cbd455c into containerd:release/2.3 Jun 10, 2026
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@github-project-automation github-project-automation Bot moved this from Review In Progress to Done in Pull Request Review Jun 10, 2026
jaredledvina added a commit to DataDog/containerd that referenced this pull request Jul 7, 2026
containerd 2.3.2

Welcome to the v2.3.2 release of containerd!

The second patch release for containerd 2.3 contains various fixes
and updates including security patches.

* **containerd**
  * [**CVE-2026-50195**](GHSA-cvxm-645q-p574)
  * [**CVE-2026-53488**](GHSA-xhf5-7wjv-pqxp)
  * [**CVE-2026-53492**](GHSA-33vj-92qq-66hc)
  * [**CVE-2026-53489**](GHSA-rgh6-rfwx-v388)
  * [**CVE-2026-47262**](GHSA-jpcc-p29g-p8mq)

* Fix a data race when reading shim logs on Windows ([containerd#13522](containerd#13522))

* Allow the last host to retry on transient network errors ([containerd#13591](containerd#13591))

* Fix container startup failures caused by concurrent task RPC timeouts during slow container creation ([containerd#13512](containerd#13512))

Please try out the release binaries and report any issues at
https://github.com/containerd/containerd/issues.

* Samuel Karp
* Chris Henzie
* Akihiro Suda
* Derek McGowan
* Akhil Mohan
* Austin Vazquez
* Ben Cressey
* Brian Goff
* Maksym Pavlenko
* Sebastiaan van Stijn
* Sergey Kanzhelev

<details><summary>30 commits</summary>
<p>

* Prepare release notes for v2.3.2 ([containerd#13627](containerd#13627))
  * [`fb8ca00b0`](containerd@fb8ca00) Prepare release notes for v2.3.2
  * [`9c69960ba`](containerd@9c69960) Merge commit from fork
  * [`0f6251520`](containerd@0f62515) Merge commit from fork
  * [`91d7471e2`](containerd@91d7471) cri: filter CDI annotations on checkpoint restore
  * [`7c2e086bf`](containerd@7c2e086) Merge commit from fork
  * [`dae67765f`](containerd@dae6776) cri: do not re-tag restored checkpoints
  * [`94aa1e2c1`](containerd@94aa1e2) Merge commit from fork
  * [`09599078f`](containerd@0959907) cri: make checkpoint restore robust to unexpected archive content
  * [`e1fdb8d22`](containerd@e1fdb8d) Merge commit from fork
  * [`ff1d116ef`](containerd@ff1d116) Bound user-database file reads in openUserFile
  * [`d156e07cb`](containerd@d156e07) Merge commit from fork
  * [`f99aad54a`](containerd@f99aad5) Do not propagate reserved labels from image configs
* vendor: golang.org/x/crypto v0.53.0 ([containerd#13608](containerd#13608))
  * [`0b9469501`](containerd@0b94695) [release/2.3] vendor: golang.org/x/crypto v0.53.0
* resolver: retry on transient network errors ([containerd#13591](containerd#13591))
  * [`983bbddc1`](containerd@983bbdd) resolver: retry on transient network errors
* update runc binary to v1.4.3 ([containerd#13601](containerd#13601))
  * [`3f76f2dc1`](containerd@3f76f2d) update runc binary to v1.4.3
* update go to 1.26.4 ([containerd#13580](containerd#13580))
  * [`8a49dfe85`](containerd@8a49dfe) update go to 1.26.4
  * [`5aa6bb2b7`](containerd@5aa6bb2) remove 1.26.2 from CI builds as it is not supported any longer due to the dependency
* Configure udevd children-max for root-test ([containerd#13568](containerd#13568))
  * [`bfb8aebc0`](containerd@bfb8aeb) Configure udevd children-max for root-test
* core/runtime/v2: fix race on Windows deferredPipeConnection.c in Read ([containerd#13522](containerd#13522))
  * [`62ceafff0`](containerd@62ceaff) core/runtime/v2: fix race on Windows deferredPipeConnection.c in Read
* runc-shim: don't hold the service lock across runc create ([containerd#13512](containerd#13512))
  * [`9b0c0dc58`](containerd@9b0c0dc) runc-shim: don't hold the service lock across runc create
* contrib/checkpoint: increase timeouts to 30s ([containerd#13459](containerd#13459))
  * [`f588bc6fb`](containerd@f588bc6) contrib/checkpoint: increase timeouts to 30s
</p>
</details>

* **golang.org/x/crypto**  v0.49.0 -> v0.53.0
* **golang.org/x/mod**     v0.35.0 -> v0.36.0
* **golang.org/x/net**     v0.52.0 -> v0.55.0
* **golang.org/x/sync**    v0.20.0 -> v0.21.0
* **golang.org/x/sys**     v0.43.0 -> v0.46.0
* **golang.org/x/term**    v0.41.0 -> v0.44.0
* **golang.org/x/text**    v0.35.0 -> v0.38.0

Previous release can be found at [v2.3.1](https://github.com/containerd/containerd/releases/tag/v2.3.1)
* `containerd-<VERSION>-<OS>-<ARCH>.tar.gz`:         ✅Recommended. Dynamically linked with glibc 2.35 (Ubuntu 22.04).
* `containerd-static-<VERSION>-<OS>-<ARCH>.tar.gz`:  Statically linked. Expected to be used on Linux distributions that do not use glibc >= 2.35. Not position-independent.

In addition to containerd, typically you will have to install [runc](https://github.com/opencontainers/runc/releases)
and [CNI plugins](https://github.com/containernetworking/plugins/releases) from their official sites too.

See also the [Getting Started](https://github.com/containerd/containerd/blob/main/docs/getting-started.md) documentation.
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