mm: resolve fork COW write faults lock-free when nested (fork-stack follow-on to #1456) - #1475

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gburd wants to merge 7 commits into

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gburd:pr/fork-cow-nested-lockfree

Commits on Jul 31, 2026

process: implement thread-backed fork()/vfork()/execve()/waitpid() (opt-in)
gburd
committed
3991815
process: fix execve()/fork() new-namespace exec hanging OSv shutdown
gburd
committed
0af931e
mm: per-child copy-on-write address space for fork() (opt-in, stacked)
gburd
committed
39341d1
mm/fork: same-VA COW stack for deep call chains (opt-in)
gburd
committed
cf3d77d
mm/fork: copy-on-write 2 MB large pages on fork (opt-in)
gburd
committed
95a650c
mm: preserve file_vma type when cloning a child address space on fork
gburd
committed
e23e282

Commits on Aug 17, 2026

mm: resolve fork COW write faults lock-free when nested to avoid reschedule at exception_depth >= 2
gburd
committed
0b72ee0