GeezerVison

…ed Process before serializing it (pythonGH-107275)

Ensure multiprocessing SemLock is valid for spawn Process before serializing it.

Creating a multiprocessing SemLock with a fork context, and then trying to pass it to a spawn-created Process, would segfault if not detected early.

---------

(cherry picked from commit 1700d34)

Co-authored-by: albanD <[email protected]>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Antoine Pitrou <[email protected]>

…ed Process before serializing it (pythonGH-107275)

Ensure multiprocessing SemLock is valid for spawn Process before serializing it.

Creating a multiprocessing SemLock with a fork context, and then trying to pass it to a spawn-created Process, would segfault if not detected early.

---------

(cherry picked from commit 1700d34)

Co-authored-by: albanD <[email protected]>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Antoine Pitrou <[email protected]>

…sed Process before serializing it (GH-107275) (#108378)

gh-77377: Ensure multiprocessing SemLock is valid for spawn-based Process before serializing it (GH-107275)

Ensure multiprocessing SemLock is valid for spawn Process before serializing it.

Creating a multiprocessing SemLock with a fork context, and then trying to pass it to a spawn-created Process, would segfault if not detected early.

---------

(cherry picked from commit 1700d34)

Co-authored-by: albanD <[email protected]>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Antoine Pitrou <[email protected]>

…sed Process before serializing it (GH-107275) (#108377)

gh-77377: Ensure multiprocessing SemLock is valid for spawn-based Process before serializing it (GH-107275)

Ensure multiprocessing SemLock is valid for spawn Process before serializing it.

Creating a multiprocessing SemLock with a fork context, and then trying to pass it to a spawn-created Process, would segfault if not detected early.

---------

(cherry picked from commit 1700d34)

Co-authored-by: albanD <[email protected]>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Antoine Pitrou <[email protected]>

…108568)

gh-107275 introduced a regression where a SemLock would fail being passed along nested child processes, as the `is_fork_ctx` attribute would be left missing after the first deserialization.

---------

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Antoine Pitrou <[email protected]>

… case (pythonGH-108568)

pythongh-107275 introduced a regression where a SemLock would fail being passed along nested child processes, as the `is_fork_ctx` attribute would be left missing after the first deserialization.

---------

(cherry picked from commit add8d45)

Co-authored-by: albanD <[email protected]>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Antoine Pitrou <[email protected]>

…e case (GH-108568) (#108692)

gh-107275 introduced a regression where a SemLock would fail being passed along nested child processes, as the `is_fork_ctx` attribute would be left missing after the first deserialization.

---------

(cherry picked from commit add8d45)

Co-authored-by: albanD <[email protected]>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Antoine Pitrou <[email protected]>

…e case (GH-108568) (#108691)

gh-108520: Fix bad fork detection in nested multiprocessing use case (GH-108568)

gh-107275 introduced a regression where a SemLock would fail being passed along nested child processes, as the `is_fork_ctx` attribute would be left missing after the first deserialization.

---------

(cherry picked from commit add8d45)

Co-authored-by: albanD <[email protected]>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Antoine Pitrou <[email protected]>