fail with better error message if the SeLockMemoryPrivilege

chris-eibl · chris-eibl · commit 725fd835300a · 2026-03-23T23:35:20.000+01:00
is not held
diff --git a/Python/pylifecycle.c b/Python/pylifecycle.c
@@ -514,7 +514,9 @@ get_huge_pages_privilege(void)
     if (!status || (error != ERROR_SUCCESS))
     {
         CloseHandle(hToken);
-        return _PyStatus_ERR("failed to obtain SeLockMemoryPrivilege for huge pages");
+        return _PyStatus_ERR(
+            "SeLockMemoryPrivilege not held; "
+            "grant it via Local Security Policy or disable PYTHON_PYMALLOC_HUGEPAGES");
     }
     if (!CloseHandle(hToken))
     {

Original file line number	Diff line number	Diff line change
`@@ -514,7 +514,9 @@ get_huge_pages_privilege(void)`
`514`	`514`	`if (!status \|\| (error != ERROR_SUCCESS))`
`515`	`515`	`{`
`516`	`516`	`CloseHandle(hToken);`
`517`		`- return _PyStatus_ERR("failed to obtain SeLockMemoryPrivilege for huge pages");`
	`517`	`+ return _PyStatus_ERR(`
	`518`	`+ "SeLockMemoryPrivilege not held; "`
	`519`	`+ "grant it via Local Security Policy or disable PYTHON_PYMALLOC_HUGEPAGES");`
`518`	`520`	`}`
`519`	`521`	`if (!CloseHandle(hToken))`
`520`	`522`	`{`