kernel: add INFO logging for bootstrap FD insertion and entry point

src/syscall/process.rs

@@ -201,14 +201,19 @@ pub unsafe fn usermode_bootstrap(bootstrap: &Bootstrap, token: &mut CleanLockTok
                 inner.fd = {
                     let cap_fd = match scheme.as_scheme().scheme_root(token) {
                         Ok(fd) => fd,
-                        Err(_) => usize::MAX,
+                        Err(e) => {
+                            info!("scheme_root failed for {:?}: {}", i, e);
+                            usize::MAX
+                        }
                     };
-                    insert_fd(
+                    let inserted = insert_fd(
                         scheme.scheme_id(),
                         cap_fd,
                         matches!(scheme, GlobalSchemes::Proc),
                         token,
-                    )
+                    );
+                    info!("inserted fd {:#x} for scheme_id {} cap_fd {}", inserted, scheme.scheme_id().get(), cap_fd);
+                    inserted
                 };
             }
         }
@@ -290,7 +295,7 @@ pub unsafe fn usermode_bootstrap(bootstrap: &Bootstrap, token: &mut CleanLockTok
         .expect("failed to copy memory to bootstrap");
 
     let bootstrap_entry = u64::from_le_bytes(bootstrap_slice[0x1a..0x22].try_into().unwrap());
-    debug!("Bootstrap entry point: {:X}", bootstrap_entry);
+    info!("Bootstrap entry point: {:#x}, pages: {}, stack at {:#x}", bootstrap_entry, bootstrap.page_count, PAGE_SIZE + bootstrap.page_count * PAGE_SIZE + 8 * PAGE_SIZE);
     assert_ne!(bootstrap_entry, 0);
 
     // Map a minimal user stack for the bootstrap process. Without this,