diff --git a/src/xenia/gpu/xenos/ucode_disassembler.cc b/src/xenia/gpu/xenos/ucode_disassembler.cc
index 6a062f817..db3ad44eb 100644
--- a/src/xenia/gpu/xenos/ucode_disassembler.cc
+++ b/src/xenia/gpu/xenos/ucode_disassembler.cc
@@ -590,8 +590,12 @@ int disasm_fetch(
                  dwords[0], dwords[1], dwords[2]);
 
   output->append("   %sFETCH:\t", sync ? "(S)" : "   ");
-  output->append("%s", fetch_instructions[fetch->opc].name);
-  fetch_instructions[fetch->opc].fxn(output, fetch);
+  if (fetch_instructions[fetch->opc].fxn) {
+    output->append("%s", fetch_instructions[fetch->opc].name);
+    fetch_instructions[fetch->opc].fxn(output, fetch);
+  } else {
+    output->append("???");
+  }
   output->append("\n");
 
   return 0;
diff --git a/src/xenia/kernel/xboxkrnl_rtl.cc b/src/xenia/kernel/xboxkrnl_rtl.cc
index 2f77b6995..97fe9efc5 100644
--- a/src/xenia/kernel/xboxkrnl_rtl.cc
+++ b/src/xenia/kernel/xboxkrnl_rtl.cc
@@ -705,7 +705,7 @@ SHIM_CALL RtlTryEnterCriticalSection_shim(
     PPCContext* ppc_state, KernelState* state) {
   uint32_t cs_ptr = SHIM_GET_ARG_32(0);
 
-  XELOGD("RtlTryEnterCriticalSection(%.8X)", cs_ptr);
+  // XELOGD("RtlTryEnterCriticalSection(%.8X)", cs_ptr);
 
   const uint8_t* thread_state_block = ppc_state->membase + ppc_state->r[13];
   uint32_t thread_id = XThread::GetCurrentThreadId(thread_state_block);