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Mimallocv3 upstream fixes - #159863

Draft

DinoV wants to merge 25 commits into

python:mainfrom

DinoV:mimallocv3-upstream-fixes

Draft

Mimallocv3 upstream fixes#159863
DinoV wants to merge 25 commits into
python:mainfrom
DinoV:mimallocv3-upstream-fixes

Commits on Oct 19, 2026
- Integrate mimalloc v3
  
  daanx
  authored and
  DinoV
  committed
  cedd47b
- Vendor mimalloc v3 snapshot
  
  daanx
  authored and
  DinoV
  committed
  3bae2f2
- update to the latest mimalloc
  
  daanx
  authored and
  DinoV
  committed
  4b6ebde
- update to latest mimalloc
  
  daanx
  authored and
  DinoV
  committed
  d206e16
- Remove trailing whitespace
  DinoV
  committed
  785620a
- Move inline decl
  DinoV
  committed
  2b6e070
- Allow __mi
  DinoV
  committed
  37b67b6
- Fix page size definition on WASI
  DinoV
  committed
  845a807
- Use relative paths for types
  DinoV
  committed
  5ce70be
- Use " for mimalloc
  DinoV
  committed
  aa528c3
- More quotes
  DinoV
  committed
  397d08f
- Use FLS init
  DinoV
  committed
  3eb6d6c
- Temporarily allow _ZSt
  DinoV
  committed
  f7a1ffd
- Avoid assert dialog
  DinoV
  committed
  e5fa478
- Fix msan
  DinoV
  committed
  98b3858
- Set max warnings to 0
  DinoV
  committed
  fbe3cfe
- Emscripten fix?
  DinoV
  committed
  fde107f
- Apply @corona10 tweak to disable THP
  DinoV
  committed
  e9094bf
- Revert "Set max warnings to 0"
  DinoV
  committed
  a5f4f65
- Define MI_TRACK_ASAN for GIL builds
  DinoV
  committed
  60c5ef6
- Include less mimalloc everywhere
  DinoV
  committed
  e19e2dd
Commits on Oct 20, 2026
- Disable one more warning
  DinoV
  committed
  ea0ff6b
- Use _Py_qsbr_poll when we have an attached thread state to match v2
  DinoV
  committed
  622cf69
- Better _ZSt15get_new_handlerv fix
  DinoV
  committed
  568dacd
- Update vendored mimalloc to upstream dev3 plus CPython fixes
  DinoV
  committed
  2e001e5

Mimallocv3 upstream fixes by DinoV · Pull Request #159863 · python/cpython · GitHub

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Mimallocv3 upstream fixes - #159863

Mimallocv3 upstream fixes#159863DinoV wants to merge 25 commits intopython:mainpython/cpython:mainfrom DinoV:mimallocv3-upstream-fixesDinoV/cpython:mimallocv3-upstream-fixesCopy head branch name to clipboard

Commits

Commits on Oct 19, 2026

Commits on Oct 20, 2026

Mimallocv3 upstream fixes#159863
DinoV wants to merge 25 commits into
python:mainfrom
DinoV:mimallocv3-upstream-fixes