---
- branch: MAIN
  date: Sat Apr  9 23:45:37 UTC 2022
  files:
  - new: '1.248'
    old: '1.247'
    path: src/sys/kern/kern_lwp.c
    pathrev: src/sys/kern/kern_lwp.c@1.248
    type: modified
  - new: '1.42'
    old: '1.41'
    path: src/sys/kern/kern_turnstile.c
    pathrev: src/sys/kern/kern_turnstile.c@1.42
    type: modified
  - new: '1.215'
    old: '1.214'
    path: src/sys/sys/lwp.h
    pathrev: src/sys/sys/lwp.h@1.215
    type: modified
  id: 20220409T234537Z.35161eb6293d001935ae7a5e3044f0bd00f7894b
  log: |
    kern: Handle l_mutex with atomic_store_release, atomic_load_consume.

    - Where the lock is held and known to be correct, no atomic.
    - In loops to acquire the lock, use atomic_load_relaxed before we
      restart with atomic_load_consume.

    Nix membar_exit.

    (Who knows, using atomic_load_consume here might fix bugs on Alpha!)
  module: src
  subject: 'CVS commit: src/sys'
  unixtime: '1649547937'
  user: riastradh