stos: vmm: Resolve panic TODO

Signed-off-by: Chloe M. <chloe@mensia.org>

paw/stos/mm/vmm.c

@@ -9,6 +9,7 @@
 #include <mm/vmm.h>
 #include <hal/mmu.h>
 #include <ex/trace.h>
+#include <ke/knot.h>
 
 #define DTRACE(Fmt, ...) \
     TRACE("[ VMM ]: " Fmt, ##__VA_ARGS__)
@@ -26,8 +27,7 @@ MmInitVmm(VOID)
     Status = HalMmuForkVas(&OldVas, &KernelVas);
 
     if (Status != STATUS_SUCCESS) {
-        /* TODO: Panic here */
-        return;
+        KeKnot(KNOT_OOM, "could not fork bootstrap vas\n");
     }
 
     HalMmuWriteVas(&KernelVas);