diff --git a/stdlib/os/__init__.pyi b/stdlib/os/__init__.pyi
index 8dc209f0e..973d9d094 100644
--- a/stdlib/os/__init__.pyi
+++ b/stdlib/os/__init__.pyi
@@ -654,7 +654,7 @@ class terminal_size(structseq[int], tuple[int, int]):
     @property
     def lines(self) -> int: ...
 
-def get_terminal_size(fd: int = ...) -> terminal_size: ...
+def get_terminal_size(__fd: int = ...) -> terminal_size: ...
 def get_inheritable(__fd: int) -> bool: ...
 def set_inheritable(__fd: int, __inheritable: bool) -> None: ...
 
@@ -823,7 +823,7 @@ if sys.platform != "win32":
     def killpg(__pgid: int, __signal: int) -> None: ...
     def nice(__increment: int) -> int: ...
     if sys.platform != "darwin":
-        def plock(op: int) -> None: ...  # ???op is int?
+        def plock(__op: int) -> None: ...  # ???op is int?
 
 class _wrap_close(_TextIOWrapper):
     def __init__(self, stream: _TextIOWrapper, proc: Popen[str]) -> None: ...
@@ -885,7 +885,7 @@ else:
             @property
             def si_code(self) -> int: ...
 
-        def waitid(idtype: int, ident: int, options: int) -> waitid_result: ...
+        def waitid(__idtype: int, __ident: int, __options: int) -> waitid_result: ...
 
     def wait3(options: int) -> tuple[int, int, Any]: ...
     def wait4(pid: int, options: int) -> tuple[int, int, Any]: ...
@@ -941,13 +941,13 @@ if sys.platform != "win32":
     def sched_get_priority_max(policy: int) -> int: ...  # some flavors of Unix
     def sched_yield() -> None: ...  # some flavors of Unix
     if sys.platform != "darwin":
-        def sched_setscheduler(pid: int, policy: int, param: sched_param) -> None: ...  # some flavors of Unix
-        def sched_getscheduler(pid: int) -> int: ...  # some flavors of Unix
-        def sched_rr_get_interval(pid: int) -> float: ...  # some flavors of Unix
-        def sched_setparam(pid: int, param: sched_param) -> None: ...  # some flavors of Unix
-        def sched_getparam(pid: int) -> sched_param: ...  # some flavors of Unix
-        def sched_setaffinity(pid: int, mask: Iterable[int]) -> None: ...  # some flavors of Unix
-        def sched_getaffinity(pid: int) -> set[int]: ...  # some flavors of Unix
+        def sched_setscheduler(__pid: int, __policy: int, __param: sched_param) -> None: ...  # some flavors of Unix
+        def sched_getscheduler(__pid: int) -> int: ...  # some flavors of Unix
+        def sched_rr_get_interval(__pid: int) -> float: ...  # some flavors of Unix
+        def sched_setparam(__pid: int, __param: sched_param) -> None: ...  # some flavors of Unix
+        def sched_getparam(__pid: int) -> sched_param: ...  # some flavors of Unix
+        def sched_setaffinity(__pid: int, __mask: Iterable[int]) -> None: ...  # some flavors of Unix
+        def sched_getaffinity(__pid: int) -> set[int]: ...  # some flavors of Unix
 
 def cpu_count() -> int | None: ...
 
diff --git a/tests/stubtest_allowlists/linux-py310.txt b/tests/stubtest_allowlists/linux-py310.txt
index 5030f3fd6..b73052b04 100644
--- a/tests/stubtest_allowlists/linux-py310.txt
+++ b/tests/stubtest_allowlists/linux-py310.txt
@@ -5,16 +5,8 @@ _?curses.color_pair
 (os|posix).SPLICE_F_MORE
 (os|posix).SPLICE_F_MOVE
 (os|posix).SPLICE_F_NONBLOCK
-(os|posix).sched_getaffinity
-(os|posix).sched_getparam
-(os|posix).sched_getscheduler
-(os|posix).sched_rr_get_interval
-(os|posix).sched_setaffinity
-(os|posix).sched_setparam
-(os|posix).sched_setscheduler
 (os|posix).setresgid
 (os|posix).setresuid
-(os|posix).waitid
 (os|posix).sendfile
 (os|posix).eventfd
 (os|posix).eventfd_read
diff --git a/tests/stubtest_allowlists/linux-py311.txt b/tests/stubtest_allowlists/linux-py311.txt
index 53283c085..4938b5cbb 100644
--- a/tests/stubtest_allowlists/linux-py311.txt
+++ b/tests/stubtest_allowlists/linux-py311.txt
@@ -7,16 +7,8 @@ mmap.MAP_STACK
 (os|posix).SPLICE_F_MORE
 (os|posix).SPLICE_F_MOVE
 (os|posix).SPLICE_F_NONBLOCK
-(os|posix).sched_getaffinity
-(os|posix).sched_getparam
-(os|posix).sched_getscheduler
-(os|posix).sched_rr_get_interval
-(os|posix).sched_setaffinity
-(os|posix).sched_setparam
-(os|posix).sched_setscheduler
 (os|posix).setresgid
 (os|posix).setresuid
-(os|posix).waitid
 (os|posix).sendfile
 (os|posix).eventfd
 (os|posix).eventfd_read