more fixes

arch/x86_64/percpu.c

@@ -56,6 +56,12 @@ void x86_64_cpu_setup(struct percpu* cpu) {
     // TODO: not if FRED
     idt_load();
 
+    asm_wrmsr(
+        MSR_PAT,
+        PAT_WB | PAT_WT << 8 | PAT_UCM << 16 | PAT_UC << 24 | (uint64_t)PAT_WP << 32 | (uint64_t)PAT_WC << 40 |
+            (uint64_t)PAT_UCM << 48 | (uint64_t)PAT_UC << 56
+    );
+
     // Syscall extension.
     asm_wrmsr(MSR_EFER, asm_rdmsr(MSR_EFER) | MSR_EFER_SCE);
     union ia32_star star = {0};