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Merged
youknowone merged 2 commits into from
Feb 20, 2026
Merged

force_unlock_after_fork #7186

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6097e91
force_unlock_after_fork
youknowone Feb 17, 2026
39efc86
Auto-format: cargo fmt --all
github-actions[bot] Feb 19, 2026
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Auto-format: cargo fmt --all
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@github-actions
github-actions[bot] committed Feb 19, 2026
commit 39efc868289cf526212cbb5e7ff41ee57689b72e
7 changes: 2 additions & 5 deletions crates/vm/src/stdlib/posix.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -732,18 +732,15 @@ pub mod module {
vm.signal_handlers
.get_or_init(crate::signal::new_signal_handlers);

let after_forkers_child: Vec<PyObjectRef> =
vm.state.after_forkers_child.lock().clone();
let after_forkers_child: Vec<PyObjectRef> = vm.state.after_forkers_child.lock().clone();
run_at_forkers(after_forkers_child, false, vm);
}

/// Force-unlock a PyMutex if held by a dead thread after fork.
///
/// # Safety
/// Must only be called after fork() in the child process.
unsafe fn force_unlock_mutex_after_fork<T>(
mutex: &crate::common::lock::PyMutex<T>,
) {
unsafe fn force_unlock_mutex_after_fork<T>(mutex: &crate::common::lock::PyMutex<T>) {
if mutex.try_lock().is_none() {
// SAFETY: Lock is held by a dead thread after fork.
unsafe { mutex.force_unlock() };
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3 changes: 1 addition & 2 deletions crates/vm/src/stdlib/sys.rs
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Expand Up @@ -827,8 +827,7 @@ mod sys {
Ok(exc) => {
// PyErr_Display: try traceback._print_exception_bltin first
if let Ok(tb_mod) = vm.import("traceback", 0)
&& let Ok(print_exc_builtin) =
tb_mod.get_attr("_print_exception_bltin", vm)
&& let Ok(print_exc_builtin) = tb_mod.get_attr("_print_exception_bltin", vm)
&& print_exc_builtin
.call((exc.as_object().to_owned(),), vm)
.is_ok()
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