diff --git a/kernel/process/process.rs b/kernel/process/process.rs
index faf56bef..1e89b1d4 100644
--- a/kernel/process/process.rs
+++ b/kernel/process/process.rs
@@ -117,7 +117,7 @@ pub struct Process {
     vm: AtomicRefCell<Option<Arc<SpinLock<Vm>>>>,
     opened_files: SpinLock<OpenedFileTable>,
     root_fs: Arc<SpinLock<RootFs>>,
-    signals: SpinLock<SignalDelivery>,
+    signals: Arc<SpinLock<SignalDelivery>>,
     signaled_frame: AtomicCell<Option<PtRegs>>,
     sigset: SpinLock<SigSet>,
 }
@@ -141,7 +141,7 @@ impl Process {
             pid: PId::new(0),
             root_fs: INITIAL_ROOT_FS.clone(),
             opened_files: SpinLock::new(OpenedFileTable::new()),
-            signals: SpinLock::new(SignalDelivery::new()),
+            signals: Arc::new(SpinLock::new(SignalDelivery::new())),
             signaled_frame: AtomicCell::new(None),
             sigset: SpinLock::new(SigSet::ZERO),
         });
@@ -202,7 +202,7 @@ impl Process {
             vm: AtomicRefCell::new(Some(Arc::new(SpinLock::new(entry.vm)))),
             opened_files: SpinLock::new(opened_files),
             root_fs,
-            signals: SpinLock::new(SignalDelivery::new()),
+            signals: Arc::new(SpinLock::new(SignalDelivery::new())),
             signaled_frame: AtomicCell::new(None),
             sigset: SpinLock::new(SigSet::ZERO),
         });
@@ -515,7 +515,7 @@ impl Process {
             opened_files: SpinLock::new(opened_files),
             root_fs: parent.root_fs().clone(),
             arch,
-            signals: SpinLock::new(SignalDelivery::new()),
+            signals: Arc::new(SpinLock::new(SignalDelivery::new())), // TODO: #88 has to address this
             signaled_frame: AtomicCell::new(None),
             sigset: SpinLock::new(*sig_set),
         });
diff --git a/runtime/lib.rs b/runtime/lib.rs
index e3db0e59..3d4d9b5c 100644
--- a/runtime/lib.rs
+++ b/runtime/lib.rs
@@ -24,6 +24,7 @@ pub mod spinlock;
 mod x64;
 
 pub mod arch {
+    #[cfg(target_arch = "x86_64")]
     pub use super::x64::{
         enable_irq, halt, idle, read_clock_counter, semihosting_halt, x64_specific, Backtrace,
         PageFaultReason, PageTable, PtRegs, SavedInterruptStatus, SemihostingExitStatus,
@@ -88,7 +89,7 @@ impl Handler for NopHandler {
         _a5: usize,
         _a6: usize,
         _n: usize,
-        _frame: *mut x64::PtRegs,
+        _frame: *mut arch::PtRegs,
     ) -> isize {
         0
     }