Add a workaround to treat bootstrap mem as owned.

src/syscall/process.rs

@@ -588,14 +588,18 @@ pub unsafe fn usermode_bootstrap(bootstrap: &Bootstrap) -> ! {
         let mut addr_space = addr_space.write();
         let addr_space = &mut *addr_space;
 
-        addr_space.grants.insert(context::memory::Grant::physmap(
+        let mut grant = context::memory::Grant::physmap(
             bootstrap.base.clone(),
             Page::containing_address(VirtualAddress::new(0)),
             bootstrap.page_count,
             PageFlags::new().user(true).write(true).execute(true),
             &mut addr_space.table.utable,
             PageFlushAll::new(),
-        ).expect("failed to physmap bootstrap memory"));
+        ).expect("failed to physmap bootstrap memory");
+        grant.allocator_owned = false;
+        grant.owned = true;
+
+        addr_space.grants.insert(grant);
     }
 
     #[cfg(target_arch = "x86_64")]