gh-145548: Use VMADDR_CID_LOCAL in VSOCK socket tests by vstinner · Pull Request #145589 · python/cpython

vstinner · 2026-03-06T13:57:26Z

Prefer VMADDR_CID_LOCAL instead of VMADDR_CID_ANY for bind() in the server. Skip the test if bind() fails with EADDRNOTAVAIL.

Issue: VSOCK test_socket.testStream() fails on aarch64 Fedora Stable 3.x buildbot #145548

Prefer VMADDR_CID_LOCAL instead of VMADDR_CID_ANY for bind() in the server. Skip the test if bind() fails with EADDRNOTAVAIL.

vstinner · 2026-03-06T14:04:47Z

This change fix AMD64 Fedora Stable 3.x and PPC64LE Fedora Stable 3.x where test_socket fails without this change. On these two buildbot workers, the test is now skipped with:

$ ./python -m test -v test_socket -m ThreadedVSOCKSocketStreamTest -v
...
testStream (test.test_socket.ThreadedVSOCKSocketStreamTest.testStream) ... skipped "bind() failed with OSError(99, 'Cannot assign requested address')"

On s390x Fedora Stable 3.x, test_socket pass without this change, and still pass with this change.

$ ./python -m test test_socket -m ThreadedVSOCKSocketStreamTest -v
...
testStream (test.test_socket.ThreadedVSOCKSocketStreamTest.testStream) ... ok

bedevere-bot · 2026-03-06T14:17:54Z

🤖 New build scheduled with the buildbot fleet by @vstinner for commit 4d24cb3 🤖

Results will be shown at:

https://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F145589%2Fmerge

If you want to schedule another build, you need to add the 🔨 test-with-buildbots label again.

miss-islington-app · 2026-03-06T15:51:41Z

Thanks @vstinner for the PR 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14.
🐍🍒⛏🤖

…-145589) Prefer VMADDR_CID_LOCAL instead of VMADDR_CID_ANY for bind() in the server. Skip the test if bind() fails with EADDRNOTAVAIL. Log vsock CID in test.pythoninfo. (cherry picked from commit 6c8c72f) Co-authored-by: Victor Stinner <vstinner@python.org>

bedevere-app · 2026-03-06T15:51:54Z

GH-145593 is a backport of this pull request to the 3.14 branch.

…-145589) Prefer VMADDR_CID_LOCAL instead of VMADDR_CID_ANY for bind() in the server. Skip the test if bind() fails with EADDRNOTAVAIL. Log vsock CID in test.pythoninfo. (cherry picked from commit 6c8c72f) Co-authored-by: Victor Stinner <vstinner@python.org>

bedevere-app · 2026-03-06T15:51:58Z

GH-145594 is a backport of this pull request to the 3.13 branch.

…) (#145593) gh-145548: Use VMADDR_CID_LOCAL in VSOCK socket tests (GH-145589) Prefer VMADDR_CID_LOCAL instead of VMADDR_CID_ANY for bind() in the server. Skip the test if bind() fails with EADDRNOTAVAIL. Log vsock CID in test.pythoninfo. (cherry picked from commit 6c8c72f) Co-authored-by: Victor Stinner <vstinner@python.org>

…) (#145594) gh-145548: Use VMADDR_CID_LOCAL in VSOCK socket tests (GH-145589) Prefer VMADDR_CID_LOCAL instead of VMADDR_CID_ANY for bind() in the server. Skip the test if bind() fails with EADDRNOTAVAIL. Log vsock CID in test.pythoninfo. (cherry picked from commit 6c8c72f) Co-authored-by: Victor Stinner <vstinner@python.org>

…ythonGH-145589) (pythonGH-145594) pythongh-145548: Use VMADDR_CID_LOCAL in VSOCK socket tests (pythonGH-145589) Prefer VMADDR_CID_LOCAL instead of VMADDR_CID_ANY for bind() in the server. Skip the test if bind() fails with EADDRNOTAVAIL. Log vsock CID in test.pythoninfo. (cherry picked from commit 6c8c72f) (cherry picked from commit 16dbbe5) Co-authored-by: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Co-authored-by: Victor Stinner <vstinner@python.org>

bedevere-app · 2026-03-11T12:50:45Z

GH-145809 is a backport of this pull request to the 3.12 branch.

…) (#145809) * [3.12] gh-145548: Use VMADDR_CID_LOCAL in VSOCK socket tests (GH-145589) (GH-145594) Prefer VMADDR_CID_LOCAL instead of VMADDR_CID_ANY for bind() in the server. Skip the test if bind() fails with EADDRNOTAVAIL. Log vsock CID in test.pythoninfo. (cherry picked from commit 6c8c72f) (cherry picked from commit 16dbbe5) * [3.13] gh-145548: Don't use VMADDR_CID_LOCAL from `socket` (GH-145735) VMADDR_CID_LOCAL was added to `socekt` in 3.14. The test needs a local constant in setUp(), as in clientSetUp(). Co-authored-by: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Co-authored-by: Victor Stinner <vstinner@python.org>

…ythonGH-145589) (pythonGH-145809) * [3.12] pythongh-145548: Use VMADDR_CID_LOCAL in VSOCK socket tests (pythonGH-145589) (pythonGH-145594) Prefer VMADDR_CID_LOCAL instead of VMADDR_CID_ANY for bind() in the server. Skip the test if bind() fails with EADDRNOTAVAIL. Log vsock CID in test.pythoninfo. (cherry picked from commit 6c8c72f) (cherry picked from commit 16dbbe5) * [3.13] pythongh-145548: Don't use VMADDR_CID_LOCAL from `socket` (pythonGH-145735) VMADDR_CID_LOCAL was added to `socekt` in 3.14. The test needs a local constant in setUp(), as in clientSetUp(). (cherry picked from commit e378eda) Co-authored-by: Petr Viktorin <encukou@gmail.com> Co-authored-by: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Co-authored-by: Victor Stinner <vstinner@python.org>

pythongh-145548: Use VMADDR_CID_LOCAL in VSOCK socket tests

a406fc1

Prefer VMADDR_CID_LOCAL instead of VMADDR_CID_ANY for bind() in the server. Skip the test if bind() fails with EADDRNOTAVAIL.

vstinner added skip news needs backport to 3.13 bugs and security fixes needs backport to 3.14 bugs and security fixes labels Mar 6, 2026

bedevere-app bot added the tests Tests in the Lib/test dir label Mar 6, 2026

bedevere-app bot mentioned this pull request Mar 6, 2026

VSOCK test_socket.testStream() fails on aarch64 Fedora Stable 3.x buildbot #145548

Closed

bedevere-app bot added the awaiting core review label Mar 6, 2026

pythongh-145548: Log vsock CID in test.pythoninfo

4d24cb3

vstinner mentioned this pull request Mar 6, 2026

gh-145548: Log vsock CID in test.pythoninfo #145588

Closed

vstinner added the 🔨 test-with-buildbots Test PR w/ buildbots; report in status section label Mar 6, 2026

bedevere-bot removed the 🔨 test-with-buildbots Test PR w/ buildbots; report in status section label Mar 6, 2026

vstinner merged commit 6c8c72f into python:main Mar 6, 2026
88 of 94 checks passed

vstinner deleted the vsock branch March 6, 2026 15:51

bedevere-app bot removed the awaiting core review label Mar 6, 2026

bedevere-app bot removed the needs backport to 3.14 bugs and security fixes label Mar 6, 2026

bedevere-app bot removed the needs backport to 3.13 bugs and security fixes label Mar 6, 2026

miss-islington mentioned this pull request Apr 15, 2026

[3.11] gh-145548: Use VMADDR_CID_LOCAL in VSOCK socket tests (GH-145589) (GH-145809) #148616

Open

miss-islington mentioned this pull request Apr 15, 2026

[3.10] gh-145548: Use VMADDR_CID_LOCAL in VSOCK socket tests (GH-145589) (GH-145809) #148617

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gh-145548: Use VMADDR_CID_LOCAL in VSOCK socket tests#145589

gh-145548: Use VMADDR_CID_LOCAL in VSOCK socket tests#145589
vstinner merged 2 commits intopython:mainfrom
vstinner:vsock

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