---
- branch: MAIN
  date: Fri Dec 31 14:22:42 UTC 2021
  files:
  - new: '1.295'
    old: '1.294'
    path: src/sys/dev/acpi/acpi.c
    pathrev: src/sys/dev/acpi/acpi.c@1.295
    type: modified
  id: 20211231T142242Z.c07642cfc7a500c47bfec761df64d5a1ddc11527
  log: |
    acpi(9): Fix memory ordering and completion bugs in notifiers.

    1. Guarantee everything which happened before acpi_register_notify
       has also happened before the notifier is actually called.

    2. On acpi_deregister_notify, don't return until the notifier is
       definitely not running any more on any CPU, using
       AcpiOsWaitEventsComplete.
  module: src
  subject: 'CVS commit: src/sys/dev/acpi'
  unixtime: '1640960562'
  user: riastradh