René's URL Explorer Experiment


Title: gh-127545: Specify minimum PyGC_Head and PyObject alignment to fix build failure by fthain · Pull Request #135016 · python/cpython · GitHub

Open Graph Title: gh-127545: Specify minimum PyGC_Head and PyObject alignment to fix build failure by fthain · Pull Request #135016 · python/cpython

X Title: gh-127545: Specify minimum PyGC_Head and PyObject alignment to fix build failure by fthain · Pull Request #135016 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: As documented in InternalDocs/garbage_collector.md, the garbage collector stores flags in the least significant two bits of the _gc_prev pointer in struct PyGC_Head. Consequently, this pointer is o...

X Description: As documented in InternalDocs/garbage_collector.md, the garbage collector stores flags in the least significant two bits of the _gc_prev pointer in struct PyGC_Head. Consequently, this pointer is o...

Opengraph URL: https://github.com/python/cpython/pull/135016

X: @github

direct link

Domain: github.com

route-pattern/_view_fragments/voltron/pull_requests/show/:user_id/:repository/:id/pull_request_layout(.:format)
route-controllervoltron_pull_requests_fragments
route-actionpull_request_layout
fetch-noncev2:34fc609a-b0c2-7115-3613-38ed170cf929
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-idD2C4:301ED8:BFD56D:108C340:6A55BF4E
html-safe-nonce2013088171ea6a234725744ca586e340244056201c08be1bdc1d8e6b72df353a
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJEMkM0OjMwMUVEODpCRkQ1NkQ6MTA4QzM0MDo2QTU1QkY0RSIsInZpc2l0b3JfaWQiOiIyNzUyMTE1Mzc0OTI1OTA0MTUiLCJyZWdpb25fZWRnZSI6ImlhZCIsInJlZ2lvbl9yZW5kZXIiOiJpYWQifQ==
visitor-hmac72d4e9157dc2503f1060d62051f15d11770695dc118595917458cfb0c28a6dbd
hovercard-subject-tagpull_request:2560009213
github-keyboard-shortcutsrepository,pull-request-list,pull-request-conversation,pull-request-files-changed,copilot
google-site-verificationApib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-urlhttps://collector.github.com/github/collect
analytics-location///voltron/pull_requests_fragments/pull_request_layout
fb:app_id1401488693436528
apple-itunes-appapp-id=1477376905, app-argument=https://github.com/_view_fragments/voltron/pull_requests/show/python/cpython/135016/pull_request_layout
twitter:imagehttps://opengraph.githubassets.com/fa3add48af50f5077295d9a68d2604d357ef5a4f26262dd249bcf8ff21bbcdf5/python/cpython/pull/135016
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/fa3add48af50f5077295d9a68d2604d357ef5a4f26262dd249bcf8ff21bbcdf5/python/cpython/pull/135016
og:image:altAs documented in InternalDocs/garbage_collector.md, the garbage collector stores flags in the least significant two bits of the _gc_prev pointer in struct PyGC_Head. Consequently, this pointer is o...
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
og:author:usernamefthain
hostnamegithub.com
expected-hostnamegithub.com
Noneb5665c84831ed9ac4fb79519c16c9c5580ba8092fb8bb6e3e72972ec7197348e
turbo-cache-controlno-cache
go-importgithub.com/python/cpython git https://github.com/python/cpython.git
octolytics-dimension-user_id1525981
octolytics-dimension-user_loginpython
octolytics-dimension-repository_id81598961
octolytics-dimension-repository_nwopython/cpython
octolytics-dimension-repository_publictrue
octolytics-dimension-repository_is_forkfalse
octolytics-dimension-repository_network_root_id81598961
octolytics-dimension-repository_network_root_nwopython/cpython
turbo-body-classeslogged-out env-production page-responsive
disable-turbofalse
browser-stats-urlhttps://api.github.com/_private/browser/stats
browser-errors-urlhttps://api.github.com/_private/browser/errors
release64b9ae238e18eb87ead1f9fe37a7cc81d67d85aa
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://github.com/python/cpython/pull/135016#start-of-content
https://github.com/
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F135016
GitHub CopilotWrite better code with AIhttps://github.com/features/copilot
GitHub Copilot appDirect agents from issue to mergehttps://github.com/features/ai/github-app
MCP RegistryNewIntegrate external toolshttps://github.com/mcp
ActionsAutomate any workflowhttps://github.com/features/actions
CodespacesInstant dev environmentshttps://github.com/features/codespaces
IssuesPlan and track workhttps://github.com/features/issues
Code ReviewManage code changeshttps://github.com/features/code-review
GitHub Advanced SecurityFind and fix vulnerabilitieshttps://github.com/security/advanced-security
Code securitySecure your code as you buildhttps://github.com/security/advanced-security/code-security
Secret protectionStop leaks before they starthttps://github.com/security/advanced-security/secret-protection
Why GitHubhttps://github.com/why-github
Documentationhttps://docs.github.com
Bloghttps://github.blog
Changeloghttps://github.blog/changelog
Marketplacehttps://github.com/marketplace
View all featureshttps://github.com/features
Enterpriseshttps://github.com/enterprise
Small and medium teamshttps://github.com/team
Startupshttps://github.com/enterprise/startups
Nonprofitshttps://github.com/solutions/industry/nonprofits
App Modernizationhttps://github.com/solutions/use-case/app-modernization
DevSecOpshttps://github.com/solutions/use-case/devsecops
DevOpshttps://github.com/solutions/use-case/devops
CI/CDhttps://github.com/solutions/use-case/ci-cd
View all use caseshttps://github.com/solutions/use-case
Healthcarehttps://github.com/solutions/industry/healthcare
Financial serviceshttps://github.com/solutions/industry/financial-services
Manufacturinghttps://github.com/solutions/industry/manufacturing
Governmenthttps://github.com/solutions/industry/government
View all industrieshttps://github.com/solutions/industry
View all solutionshttps://github.com/solutions
AIhttps://github.com/resources/articles?topic=ai
Software Developmenthttps://github.com/resources/articles?topic=software-development
DevOpshttps://github.com/resources/articles?topic=devops
Securityhttps://github.com/resources/articles?topic=security
View all topicshttps://github.com/resources/articles
Customer storieshttps://github.com/customer-stories
Events & webinarshttps://github.com/resources/events
Ebooks & reportshttps://github.com/resources/whitepapers
Business insightshttps://github.com/solutions/executive-insights
GitHub Skillshttps://skills.github.com
Documentationhttps://docs.github.com
Customer supporthttps://support.github.com
Community forumhttps://github.com/orgs/community/discussions
Trust centerhttps://github.com/trust-center
Partnershttps://github.com/partners
View all resourceshttps://github.com/resources
GitHub SponsorsFund open source developershttps://github.com/open-source/sponsors
Security Labhttps://securitylab.github.com
Maintainer Communityhttps://maintainers.github.com
Acceleratorhttps://github.com/open-source/accelerator
GitHub Starshttps://stars.github.com
Archive Programhttps://archiveprogram.github.com
Topicshttps://github.com/topics
Trendinghttps://github.com/trending
Collectionshttps://github.com/collections
Enterprise platformAI-powered developer platformhttps://github.com/enterprise
GitHub Advanced SecurityEnterprise-grade security featureshttps://github.com/security/advanced-security
Copilot for BusinessEnterprise-grade AI featureshttps://github.com/features/copilot/copilot-business
Premium SupportEnterprise-grade 24/7 supporthttps://github.com/enterprise/premium-support
Pricinghttps://github.com/pricing
Search syntax tipshttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
documentationhttps://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%2F135016
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
Reloadhttps://github.com/python/cpython/pull/135016
Reloadhttps://github.com/python/cpython/pull/135016
Reloadhttps://github.com/python/cpython/pull/135016
Please reload this pagehttps://github.com/python/cpython/pull/135016
python https://github.com/python
cpythonhttps://github.com/python/cpython
Please reload this pagehttps://github.com/python/cpython/pull/135016
Notifications https://github.com/login?return_to=%2Fpython%2Fcpython
Fork 35k https://github.com/login?return_to=%2Fpython%2Fcpython
Star 73.8k 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
fthainhttps://github.com/fthain
python:mainhttps://github.com/python/cpython/tree/main
fthain:gc_crashhttps://github.com/fthain/cpython/tree/gc_crash
Conversationhttps://github.com/python/cpython/pull/135016
Commits1 (1)https://github.com/python/cpython/pull/135016/commits
Checkshttps://github.com/python/cpython/pull/135016/checks
Files changedhttps://github.com/python/cpython/pull/135016/files
gh-127545: Specify minimum PyGC_Head and PyObject alignment to fix build failurehttps://github.com/python/cpython/pull/135016#top
fthainhttps://github.com/fthain
python:mainhttps://github.com/python/cpython/tree/main
fthain:gc_crashhttps://github.com/fthain/cpython/tree/gc_crash
https://github.com/fthain
fthainhttps://github.com/fthain
Jun 2, 2025https://github.com/python/cpython/pull/135016#issue-3109447098
Please reload this pagehttps://github.com/python/cpython/pull/135016
https://lists.debian.org/debian-68k/2024/11/msg00020.htmlhttps://lists.debian.org/debian-68k/2024/11/msg00020.html
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1087600https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1087600
PR#127546https://github.com/python/cpython/pull/127546
Cpython build failure: _bootstrap_python segfault #127545https://github.com/python/cpython/issues/127545
Please reload this pagehttps://github.com/python/cpython/pull/135016
https://github.com/fthain
Specify minimum PyGC_Head and PyObject alignment to fix build failurehttps://github.com/python/cpython/pull/135016/commits/392f6c5bc8e9548e83b00d1ca6b2223345d8c2ec
392f6c5https://github.com/python/cpython/pull/135016/commits/392f6c5bc8e9548e83b00d1ca6b2223345d8c2ec
https://lists.debian.org/debian-68k/2024/11/msg00020.htmlhttps://lists.debian.org/debian-68k/2024/11/msg00020.html
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1087600https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1087600
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
awaiting review https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20review%22
Jun 2, 2025https://github.com/python/cpython/pull/135016#event-17928975587
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
Jun 2, 2025 https://github.com/python/cpython/pull/135016#ref-issue-2713899988
Cpython build failure: _bootstrap_python segfault #127545 https://github.com/python/cpython/issues/127545
https://github.com/fthain
fthainhttps://github.com/fthain
Jun 2, 2025https://github.com/python/cpython/pull/135016#issuecomment-2929782079
@ZeroIntensityhttps://github.com/ZeroIntensity
Please reload this pagehttps://github.com/python/cpython/pull/135016
https://github.com/ZeroIntensity
ZeroIntensityhttps://github.com/ZeroIntensity
needs backport to 3.13 https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22needs%20backport%20to%203.13%22
OS-linux https://github.com/python/cpython/issues?q=state%3Aopen%20label%3AOS-linux
needs backport to 3.14 https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22needs%20backport%20to%203.14%22
🔨 test-with-buildbots https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22%3Ahammer%3A%20test-with-buildbots%22
Jun 2, 2025https://github.com/python/cpython/pull/135016#event-17929061806
https://github.com/bedevere-bot
bedevere-bothttps://github.com/bedevere-bot
Jun 2, 2025https://github.com/python/cpython/pull/135016#issuecomment-2929791128
@ZeroIntensityhttps://github.com/ZeroIntensity
392f6c5https://github.com/python/cpython/commit/392f6c5bc8e9548e83b00d1ca6b2223345d8c2ec
https://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F135016%2Fmergehttps://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F135016%2Fmerge
Please reload this pagehttps://github.com/python/cpython/pull/135016
https://github.com/bedevere-bot
bedevere-bothttps://github.com/bedevere-bot
🔨 test-with-buildbots https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22%3Ahammer%3A%20test-with-buildbots%22
Jun 2, 2025https://github.com/python/cpython/pull/135016#event-17929087260
https://github.com/colesbury
colesburyhttps://github.com/colesbury
Jun 3, 2025 https://github.com/python/cpython/pull/135016#pullrequestreview-2892984973
View reviewed changes https://github.com/python/cpython/pull/135016/files/392f6c5bc8e9548e83b00d1ca6b2223345d8c2ec
Include/object.hhttps://github.com/python/cpython/pull/135016/files/392f6c5bc8e9548e83b00d1ca6b2223345d8c2ec#diff-87272721a5cf1cd9915d6f503f6a7bbefa2f26c935c7ce83ca78706afd0ad05a
Please reload this pagehttps://github.com/python/cpython/pull/135016
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
awaiting review https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20review%22
Jun 3, 2025https://github.com/python/cpython/pull/135016#event-17961303825
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
Jun 3, 2025https://github.com/python/cpython/pull/135016#issuecomment-2935890257
Please reload this pagehttps://github.com/python/cpython/pull/135016
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
awaiting changes https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20changes%22
Jun 3, 2025https://github.com/python/cpython/pull/135016#event-17961304036
https://github.com/colesbury
colesburyhttps://github.com/colesbury
stale reviewhttps://github.com/python/cpython/pull/135016#pullrequestreview-2892984973
June 3, 2025 15:22https://github.com/python/cpython/pull/135016#event-17961511109
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
awaiting review https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20review%22
awaiting changes https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20changes%22
Jun 3, 2025https://github.com/python/cpython/pull/135016#event-17961513033
https://github.com/fthain
fthainhttps://github.com/fthain
Jun 4, 2025https://github.com/python/cpython/pull/135016#issuecomment-2938706769
@colesburyhttps://github.com/colesbury
Please reload this pagehttps://github.com/python/cpython/pull/135016
https://github.com/ZeroIntensity
ZeroIntensityhttps://github.com/ZeroIntensity
Jun 4, 2025 https://github.com/python/cpython/pull/135016#pullrequestreview-2896356852
View reviewed changes https://github.com/python/cpython/pull/135016/files/392f6c5bc8e9548e83b00d1ca6b2223345d8c2ec
Include/internal/pycore_interp_structs.hhttps://github.com/python/cpython/pull/135016/files/392f6c5bc8e9548e83b00d1ca6b2223345d8c2ec#diff-6075b6142803c1eccc213aa150704fd639443c65311d5999f69a5ea77cb76756
ZeroIntensityhttps://github.com/ZeroIntensity
Jun 4, 2025https://github.com/python/cpython/pull/135016#discussion_r2126363441
Learn morehttps://docs.github.com/articles/managing-disruptive-comments/#hiding-a-comment
capi-workgroup/decisions#61https://github.com/capi-workgroup/decisions/issues/61
Please reload this pagehttps://github.com/python/cpython/pull/135016
https://github.com/ZeroIntensity
ZeroIntensityhttps://github.com/ZeroIntensity
DO-NOT-MERGE https://github.com/python/cpython/issues?q=state%3Aopen%20label%3ADO-NOT-MERGE
Jun 4, 2025https://github.com/python/cpython/pull/135016#event-17982567738
https://github.com/encukou
encukouhttps://github.com/encukou
Jun 7, 2025https://github.com/python/cpython/pull/135016#issuecomment-2952248704
#135209https://github.com/python/cpython/pull/135209
Please reload this pagehttps://github.com/python/cpython/pull/135016
https://github.com/encukou
encukouhttps://github.com/encukou
Jun 11, 2025https://github.com/python/cpython/pull/135016#issuecomment-2962185340
#135209https://github.com/python/cpython/pull/135209
Please reload this pagehttps://github.com/python/cpython/pull/135016
https://github.com/encukou
encukouhttps://github.com/encukou
Jun 11, 2025https://github.com/python/cpython/pull/135016#event-18091769175
https://github.com/AA-Turner
AA-Turnerhttps://github.com/AA-Turner
needs backport to 3.13 https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22needs%20backport%20to%203.13%22
needs backport to 3.14 https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22needs%20backport%20to%203.14%22
Aug 14, 2025https://github.com/python/cpython/pull/135016#event-19167707597
https://github.co/hiddenchars
https://github.com/python/cpython/pull/{{ revealButtonHref }}
Sign up for freehttps://github.com/join?source=comment-repo
Sign in to commenthttps://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F135016
https://github.com/ZeroIntensity
ZeroIntensity https://github.com/ZeroIntensity
https://github.com/python/cpython/pull/135016/files/392f6c5bc8e9548e83b00d1ca6b2223345d8c2ec
https://github.com/colesbury
colesbury https://github.com/colesbury
https://github.com/python/cpython/pull/135016/files/392f6c5bc8e9548e83b00d1ca6b2223345d8c2ec
awaiting review https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20review%22
DO-NOT-MERGE https://github.com/python/cpython/issues?q=state%3Aopen%20label%3ADO-NOT-MERGE
OS-linux https://github.com/python/cpython/issues?q=state%3Aopen%20label%3AOS-linux
Please reload this pagehttps://github.com/python/cpython/pull/135016
https://github.com/fthain
https://github.com/bedevere-bot
https://github.com/encukou
https://github.com/colesbury
https://github.com/ZeroIntensity
https://github.com/AA-Turner
https://github.com
Termshttps://docs.github.com/site-policy/github-terms/github-terms-of-service
Privacyhttps://docs.github.com/site-policy/privacy-policies/github-privacy-statement
Securityhttps://github.com/security
Statushttps://www.githubstatus.com/
Communityhttps://github.community/
Docshttps://docs.github.com/
Contacthttps://support.github.com?tags=dotcom-footer

Viewport: width=device-width


URLs of crawlers that visited me.