| route-pattern | /_view_fragments/voltron/pull_requests/show/:user_id/:repository/:id/pull_request_layout(.:format) |
| route-controller | voltron_pull_requests_fragments |
| route-action | pull_request_layout |
| fetch-nonce | v2:dd1ed009-9755-72a5-3ab7-5207e2b2ce25 |
| current-catalog-service-hash | ae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b |
| request-id | DAA8:277A68:14EC23:1CBA13:6A513ABD |
| html-safe-nonce | 555ce1b9d1180caaf343a96232bafa9ae7b91478d2aa5f6c37c06c367cae8689 |
| visitor-payload | eyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJEQUE4OjI3N0E2ODoxNEVDMjM6MUNCQTEzOjZBNTEzQUJEIiwidmlzaXRvcl9pZCI6IjEwMzYxNDQ2OTU2ODY4MDYyMDUiLCJyZWdpb25fZWRnZSI6ImlhZCIsInJlZ2lvbl9yZW5kZXIiOiJpYWQifQ== |
| visitor-hmac | 2fe31ad301c9796f4cfee96f6c431704034a186a7b3754841390ac0c7ed95f0e |
| hovercard-subject-tag | pull_request:2618796079 |
| github-keyboard-shortcuts | repository,pull-request-list,pull-request-conversation,pull-request-files-changed,copilot |
| google-site-verification | Apib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I |
| octolytics-url | https://collector.github.com/github/collect |
| analytics-location | ///voltron/pull_requests_fragments/pull_request_layout |
| fb:app_id | 1401488693436528 |
| apple-itunes-app | app-id=1477376905, app-argument=https://github.com/_view_fragments/voltron/pull_requests/show/python/cpython/135947/pull_request_layout |
| twitter:image | https://opengraph.githubassets.com/46e747a08b5720b524eacbd7dd62ec1aab219cbb4954100b6a58370904516113/python/cpython/pull/135947 |
| twitter:card | summary_large_image |
| og:image | https://opengraph.githubassets.com/46e747a08b5720b524eacbd7dd62ec1aab219cbb4954100b6a58370904516113/python/cpython/pull/135947 |
| og:image:alt | The free threading build could spin unnecessarily on _Py_yield() if the initial compare and swap failed.
(cherry picked from commit cbfaf41)
Issue: Non-blocking _PyMutex_LockTimed spins and may f... |
| og:image:width | 1200 |
| og:image:height | 600 |
| og:site_name | GitHub |
| og:type | object |
| og:author:username | colesbury |
| hostname | github.com |
| expected-hostname | github.com |
| None | e840f405b2718e8f2d55aafa9ff27dbce17e29d0c253011d05ea0fea3c78baff |
| turbo-cache-control | no-cache |
| go-import | github.com/python/cpython git https://github.com/python/cpython.git |
| octolytics-dimension-user_id | 1525981 |
| octolytics-dimension-user_login | python |
| octolytics-dimension-repository_id | 81598961 |
| octolytics-dimension-repository_nwo | python/cpython |
| octolytics-dimension-repository_public | true |
| octolytics-dimension-repository_is_fork | false |
| octolytics-dimension-repository_network_root_id | 81598961 |
| octolytics-dimension-repository_network_root_nwo | python/cpython |
| turbo-body-classes | logged-out env-production page-responsive |
| disable-turbo | false |
| browser-stats-url | https://api.github.com/_private/browser/stats |
| browser-errors-url | https://api.github.com/_private/browser/errors |
| release | 4ae6027e8ba70c79dc08249bb6cdc1a09d788496 |
| ui-target | full |
| theme-color | #1e2327 |
| color-scheme | light dark |
| Skip to content | https://github.com/python/cpython/pull/135947#start-of-content |
|
| https://github.com/ |
|
Sign in
| https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F135947 |
| GitHub CopilotWrite better code with AI | https://github.com/features/copilot |
| GitHub Copilot appDirect agents from issue to merge | https://github.com/features/ai/github-app |
| MCP RegistryNewIntegrate external tools | https://github.com/mcp |
| ActionsAutomate any workflow | https://github.com/features/actions |
| CodespacesInstant dev environments | https://github.com/features/codespaces |
| IssuesPlan and track work | https://github.com/features/issues |
| Code ReviewManage code changes | https://github.com/features/code-review |
| GitHub Advanced SecurityFind and fix vulnerabilities | https://github.com/security/advanced-security |
| Code securitySecure your code as you build | https://github.com/security/advanced-security/code-security |
| Secret protectionStop leaks before they start | https://github.com/security/advanced-security/secret-protection |
| Why GitHub | https://github.com/why-github |
| Documentation | https://docs.github.com |
| Blog | https://github.blog |
| Changelog | https://github.blog/changelog |
| Marketplace | https://github.com/marketplace |
| View all features | https://github.com/features |
| Enterprises | https://github.com/enterprise |
| Small and medium teams | https://github.com/team |
| Startups | https://github.com/enterprise/startups |
| Nonprofits | https://github.com/solutions/industry/nonprofits |
| App Modernization | https://github.com/solutions/use-case/app-modernization |
| DevSecOps | https://github.com/solutions/use-case/devsecops |
| DevOps | https://github.com/solutions/use-case/devops |
| CI/CD | https://github.com/solutions/use-case/ci-cd |
| View all use cases | https://github.com/solutions/use-case |
| Healthcare | https://github.com/solutions/industry/healthcare |
| Financial services | https://github.com/solutions/industry/financial-services |
| Manufacturing | https://github.com/solutions/industry/manufacturing |
| Government | https://github.com/solutions/industry/government |
| View all industries | https://github.com/solutions/industry |
| View all solutions | https://github.com/solutions |
| AI | https://github.com/resources/articles?topic=ai |
| Software Development | https://github.com/resources/articles?topic=software-development |
| DevOps | https://github.com/resources/articles?topic=devops |
| Security | https://github.com/resources/articles?topic=security |
| View all topics | https://github.com/resources/articles |
| Customer stories | https://github.com/customer-stories |
| Events & webinars | https://github.com/resources/events |
| Ebooks & reports | https://github.com/resources/whitepapers |
| Business insights | https://github.com/solutions/executive-insights |
| GitHub Skills | https://skills.github.com |
| Documentation | https://docs.github.com |
| Customer support | https://support.github.com |
| Community forum | https://github.com/orgs/community/discussions |
| Trust center | https://github.com/trust-center |
| Partners | https://github.com/partners |
| View all resources | https://github.com/resources |
| GitHub SponsorsFund open source developers | https://github.com/open-source/sponsors |
| Security Lab | https://securitylab.github.com |
| Maintainer Community | https://maintainers.github.com |
| Accelerator | https://github.com/open-source/accelerator |
| GitHub Stars | https://stars.github.com |
| Archive Program | https://archiveprogram.github.com |
| Topics | https://github.com/topics |
| Trending | https://github.com/trending |
| Collections | https://github.com/collections |
| Enterprise platformAI-powered developer platform | https://github.com/enterprise |
| GitHub Advanced SecurityEnterprise-grade security features | https://github.com/security/advanced-security |
| Copilot for BusinessEnterprise-grade AI features | https://github.com/features/copilot/copilot-business |
| Premium SupportEnterprise-grade 24/7 support | https://github.com/enterprise/premium-support |
| Pricing | https://github.com/pricing |
| Search syntax tips | https://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax |
| documentation | https://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax |
|
Sign in
| https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F135947 |
|
Sign up
| https://github.com/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fvoltron%2Fpull_requests_fragments%2Fpull_request_layout&source=header-repo&source_repo=python%2Fcpython |
| Reload | https://github.com/python/cpython/pull/135947 |
| Reload | https://github.com/python/cpython/pull/135947 |
| Reload | https://github.com/python/cpython/pull/135947 |
| Please reload this page | https://github.com/python/cpython/pull/135947 |
|
python
| https://github.com/python |
| cpython | https://github.com/python/cpython |
| Please reload this page | https://github.com/python/cpython/pull/135947 |
|
Notifications
| https://github.com/login?return_to=%2Fpython%2Fcpython |
|
Fork
35k
| https://github.com/login?return_to=%2Fpython%2Fcpython |
|
Star
73.7k
| https://github.com/login?return_to=%2Fpython%2Fcpython |
|
Code
| https://github.com/python/cpython |
|
Issues
5k+
| https://github.com/python/cpython/issues |
|
Pull requests
2.3k
| https://github.com/python/cpython/pulls |
|
Actions
| https://github.com/python/cpython/actions |
|
Projects
| https://github.com/python/cpython/projects |
|
Security and quality
0
| https://github.com/python/cpython/security |
|
Insights
| https://github.com/python/cpython/pulse |
|
Code
| https://github.com/python/cpython |
|
Issues
| https://github.com/python/cpython/issues |
|
Pull requests
| https://github.com/python/cpython/pulls |
|
Actions
| https://github.com/python/cpython/actions |
|
Projects
| https://github.com/python/cpython/projects |
|
Security and quality
| https://github.com/python/cpython/security |
|
Insights
| https://github.com/python/cpython/pulse |
| colesbury | https://github.com/colesbury |
| python:3.13 | https://github.com/python/cpython/tree/3.13 |
| colesbury:backport-cbfaf41-3.13 | https://github.com/colesbury/cpython/tree/backport-cbfaf41-3.13 |
| Conversation | https://github.com/python/cpython/pull/135947 |
| Commits1 (1) | https://github.com/python/cpython/pull/135947/commits |
| Checks | https://github.com/python/cpython/pull/135947/checks |
| Files changed | https://github.com/python/cpython/pull/135947/files |
| [3.13] gh-135871: Fix needless spinning in _PyMutex_LockTimed with zero timeout (gh-135872) | https://github.com/python/cpython/pull/135947#top |
| colesbury | https://github.com/colesbury |
| python:3.13 | https://github.com/python/cpython/tree/3.13 |
| colesbury:backport-cbfaf41-3.13 | https://github.com/colesbury/cpython/tree/backport-cbfaf41-3.13 |
|
| https://github.com/colesbury |
| colesbury | https://github.com/colesbury |
| Jun 25, 2025 | https://github.com/python/cpython/pull/135947#issue-3176302686 |
| Please reload this page | https://github.com/python/cpython/pull/135947 |
| cbfaf41 | https://github.com/python/cpython/commit/cbfaf41caf135b8598a560854cd59e992a2ccfed |
| Non-blocking _PyMutex_LockTimed spins and may fail unnecessarily in no-GIL builds #135871 | https://github.com/python/cpython/issues/135871 |
| Please reload this page | https://github.com/python/cpython/pull/135947 |
|
| https://github.com/jtibbertsma |
|
| https://github.com/colesbury |
| [3.13] Fix needless spinning in _PyMutex_LockTimed with zero timeout ( | https://github.com/python/cpython/pull/135947/commits/697bdf55b21f787500a61796478067a27052f005 |
| 697bdf5 | https://github.com/python/cpython/pull/135947/commits/697bdf55b21f787500a61796478067a27052f005 |
| pythongh-135872 | https://github.com/python/cpython/pull/135872 |
| cbfaf41 | https://github.com/colesbury/cpython/commit/cbfaf41caf135b8598a560854cd59e992a2ccfed |
| https://github.com/apps/bedevere-app |
| bedevere-app | https://github.com/apps/bedevere-app |
|
awaiting core review
| https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20core%20review%22 |
| Jun 25, 2025 | https://github.com/python/cpython/pull/135947#event-18320665853 |
| https://github.com/apps/bedevere-app |
| bedevere-app | https://github.com/apps/bedevere-app |
|
Jun 25, 2025
| https://github.com/python/cpython/pull/135947#ref-pullrequest-3169876149 |
|
gh-135871: Fix needless spinning in _PyMutex_LockTimed (timeout==0)
#135872
| https://github.com/python/cpython/pull/135872 |
| https://github.com/apps/bedevere-app |
| bedevere-app | https://github.com/apps/bedevere-app |
|
topic-free-threading
| https://github.com/python/cpython/issues?q=state%3Aopen%20label%3Atopic-free-threading |
| Jun 25, 2025 | https://github.com/python/cpython/pull/135947#event-18320666289 |
| https://github.com/colesbury |
| colesbury | https://github.com/colesbury |
| Jun 25, 2025 | https://github.com/python/cpython/pull/135947#event-18320682959 |
| https://github.com/apps/bedevere-app |
| bedevere-app | https://github.com/apps/bedevere-app |
|
Jun 25, 2025
| https://github.com/python/cpython/pull/135947#ref-issue-3169847353 |
|
Non-blocking _PyMutex_LockTimed spins and may fail unnecessarily in no-GIL builds
#135871
| https://github.com/python/cpython/issues/135871 |
| https://github.com/colesbury |
| colesbury | https://github.com/colesbury |
| June 25, 2025 16:49 | https://github.com/python/cpython/pull/135947#event-18320696811 |
| https://github.com/colesbury |
| colesbury | https://github.com/colesbury |
| c64df2a | https://github.com/python/cpython/commit/c64df2a3ec39a916a011baaa9b8a305d15bf091c |
| Jun 25, 2025 | https://github.com/python/cpython/pull/135947#event-18320992774 |
| Please reload this page | https://github.com/python/cpython/pull/135947 |
| https://github.com/apps/bedevere-app |
| bedevere-app | https://github.com/apps/bedevere-app |
|
awaiting core review
| https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20core%20review%22 |
| Jun 25, 2025 | https://github.com/python/cpython/pull/135947#event-18320993495 |
| https://github.com/JUANMANUEL48432750 |
| JUANMANUEL48432750 | https://github.com/JUANMANUEL48432750 |
|
Jul 14, 2025
| https://github.com/python/cpython/pull/135947#pullrequestreview-3018001099 |
|
View reviewed changes
| https://github.com/python/cpython/pull/135947/files/697bdf55b21f787500a61796478067a27052f005 |
| JUANMANUEL48432750 | https://github.com/JUANMANUEL48432750 |
| https://github.com/python/cpython/pull/135947#pullrequestreview-3018001099 |
| Learn more | https://docs.github.com/articles/managing-disruptive-comments/#hiding-a-comment |
| Please reload this page | https://github.com/python/cpython/pull/135947 |
| https://github.com/colesbury |
| colesbury | https://github.com/colesbury |
| July 15, 2025 15:00 | https://github.com/python/cpython/pull/135947#event-18640555615 |
| https://github.co/hiddenchars |
| https://github.com/python/cpython/pull/{{ revealButtonHref }} |
| Sign up for free | https://github.com/join?source=comment-repo |
| Sign in to comment | https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F135947 |
|
| https://github.com/JUANMANUEL48432750 |
|
JUANMANUEL48432750
| https://github.com/JUANMANUEL48432750 |
|
| https://github.com/python/cpython/pull/135947/files/697bdf55b21f787500a61796478067a27052f005 |
|
topic-free-threading
| https://github.com/python/cpython/issues?q=state%3Aopen%20label%3Atopic-free-threading |
| Please reload this page | https://github.com/python/cpython/pull/135947 |
|
| https://github.com/colesbury |
|
| https://github.com/JUANMANUEL48432750 |
|
| https://github.com/jtibbertsma |
|
| https://github.com |
| Terms | https://docs.github.com/site-policy/github-terms/github-terms-of-service |
| Privacy | https://docs.github.com/site-policy/privacy-policies/github-privacy-statement |
| Security | https://github.com/security |
| Status | https://www.githubstatus.com/ |
| Community | https://github.community/ |
| Docs | https://docs.github.com/ |
| Contact | https://support.github.com?tags=dotcom-footer |