Index: kernel/arch/amd64/src/debugger.c
===================================================================
--- kernel/arch/amd64/src/debugger.c	(revision dc0b96419120ee5e704d73292cca782d65f45781)
+++ kernel/arch/amd64/src/debugger.c	(revision a6ba0c9cb46c31fab5fccc5ab7ff90a3a8cacb82)
@@ -230,14 +230,14 @@
 				return;
 			
-			printf("*** Found ZERO on address %" PRIp " (slot %d) ***\n",
-			    breakpoints[slot].address, slot);
+			printf("*** Found ZERO on address %p (slot %d) ***\n",
+			    (void *) breakpoints[slot].address, slot);
 		} else {
-			printf("Data watchpoint - new data: %" PRIp "\n",
+			printf("Data watchpoint - new data: %#" PRIxn "\n",
 			    *((unative_t *) breakpoints[slot].address));
 		}
 	}
 	
-	printf("Reached breakpoint %d:%" PRIp " (%s)\n", slot, getip(istate),
-	    symtab_fmt_name_lookup(getip(istate)));
+	printf("Reached breakpoint %d:%p (%s)\n", slot,
+	    (void *) getip(istate), symtab_fmt_name_lookup(getip(istate)));
 	
 #ifdef CONFIG_KCONSOLE
@@ -363,12 +363,12 @@
 			
 #ifdef __32_BITS__
-			printf("%-4u %7" PRIs " %p %s\n", i,
-			    breakpoints[i].counter, breakpoints[i].address,
+			printf("%-4u %7zu %p %s\n", i,
+			    breakpoints[i].counter, (void *) breakpoints[i].address,
 			    symbol);
 #endif
 			
 #ifdef __64_BITS__
-			printf("%-4u %7" PRIs " %p %s\n", i,
-			    breakpoints[i].counter, breakpoints[i].address,
+			printf("%-4u %7zu %p %s\n", i,
+			    breakpoints[i].counter, (void *) breakpoints[i].address,
 			    symbol);
 #endif
@@ -405,7 +405,8 @@
 		flags = BKPOINT_WRITE;
 	
-	printf("Adding breakpoint on address: %p\n", argv->intval);
-	
-	int id = breakpoint_add((void *)argv->intval, flags, -1);
+	printf("Adding breakpoint on address: %p\n",
+	    (void *) argv->intval);
+	
+	int id = breakpoint_add((void *) argv->intval, flags, -1);
 	if (id < 0)
 		printf("Add breakpoint failed.\n");
Index: kernel/arch/amd64/src/interrupt.c
===================================================================
--- kernel/arch/amd64/src/interrupt.c	(revision dc0b96419120ee5e704d73292cca782d65f45781)
+++ kernel/arch/amd64/src/interrupt.c	(revision a6ba0c9cb46c31fab5fccc5ab7ff90a3a8cacb82)
@@ -65,18 +65,28 @@
 void istate_decode(istate_t *istate)
 {
-	printf("cs =%p\trip=%p\trfl=%p\terr=%p\n",
-	    istate->cs, istate->rip, istate->rflags, istate->error_word);
-
+	printf("cs =%#0" PRIx64 "\trip=%p\t"
+	    "rfl=%#0" PRIx64 "\terr=%#0" PRIx64 "\n",
+	    istate->cs, (void *) istate->rip,
+	    istate->rflags, istate->error_word);
+	
 	if (istate_from_uspace(istate))
-		printf("ss =%p\n", istate->ss);
-	
-	printf("rax=%p\trbx=%p\trcx=%p\trdx=%p\n",
+		printf("ss =%#0" PRIx64 "\n", istate->ss);
+	
+	printf("rax=%#0" PRIx64 "\trbx=%#0" PRIx64 "\t"
+	    "rcx=%#0" PRIx64 "\trdx=%#0" PRIx64 "\n",
 	    istate->rax, istate->rbx, istate->rcx, istate->rdx);
+	
 	printf("rsi=%p\trdi=%p\trbp=%p\trsp=%p\n",
-	    istate->rsi, istate->rdi, istate->rbp,
-	    istate_from_uspace(istate) ? istate->rsp : (uintptr_t)&istate->rsp);
-	printf("r8 =%p\tr9 =%p\tr10=%p\tr11=%p\n",
+	    (void *) istate->rsi, (void *) istate->rdi,
+	    (void *) istate->rbp,
+	    istate_from_uspace(istate) ? ((void *) istate->rsp) :
+	    &istate->rsp);
+	
+	printf("r8 =%#0" PRIx64 "\tr9 =%#0" PRIx64 "\t"
+	    "r10=%#0" PRIx64 "\tr11=%#0" PRIx64 "\n",
 	    istate->r8, istate->r9, istate->r10, istate->r11);
-	printf("r12=%p\tr13=%p\tr14=%p\tr15=%p\n",
+	
+	printf("r12=%#0" PRIx64 "\tr13=%#0" PRIx64 "\t"
+	    "r14=%#0" PRIx64 "\tr15=%#0" PRIx64 "\n",
 	    istate->r12, istate->r13, istate->r14, istate->r15);
 }
Index: kernel/arch/amd64/src/mm/page.c
===================================================================
--- kernel/arch/amd64/src/mm/page.c	(revision dc0b96419120ee5e704d73292cca782d65f45781)
+++ kernel/arch/amd64/src/mm/page.c	(revision a6ba0c9cb46c31fab5fccc5ab7ff90a3a8cacb82)
@@ -89,5 +89,5 @@
 	
 	if (as_page_fault(page, access, istate) == AS_PF_FAULT) {
-		fault_if_from_uspace(istate, "Page fault: %#x.", page);
+		fault_if_from_uspace(istate, "Page fault: %p.", (void *) page);
 		panic_memtrap(istate, access, page, NULL);
 	}
@@ -97,6 +97,6 @@
 {
 	if (last_frame + ALIGN_UP(size, PAGE_SIZE) > KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH))
-		panic("Unable to map physical memory %p (%" PRIs " bytes).", physaddr,
-		    size);
+		panic("Unable to map physical memory %p (%zu bytes).",
+		    (void *) physaddr, size);
 	
 	uintptr_t virtaddr = PA2KA(last_frame);