frame: fix oom on 1G

Signed-off-by: Andy-Python-Programmer <[email protected]>

Author: Andy-Python-Programmer

aero.py

@@ -451,7 +451,7 @@ def run_in_emulator(args, iso_path):
 
     qemu_args = ['-cdrom', iso_path,
                  '-M', 'q35',
-                 '-m', '5G',
+                 '-m', '512M',
                  '-smp', '5',
                  '-serial', 'stdio']
 

src/aero_kernel/src/mem/paging/frame.rs

@@ -550,7 +550,7 @@ impl GlobalFrameAllocator {
                     for j in (0..=i).rev() {
                         let sizee = BUDDY_SIZE[j];
 
-                        if remaning >= sizee {
+                        while remaning >= sizee {
                             self.set_bit(result + (remaning - sizee) + size, j);
                             remaning -= sizee;
                         }