Index: kernel/arch/ppc32/src/debug/stacktrace.c
===================================================================
--- kernel/arch/ppc32/src/debug/stacktrace.c	(revision c5429fedb8216659204bbbdba42d7f5a845e4dda)
+++ kernel/arch/ppc32/src/debug/stacktrace.c	(revision 9be2358aadbef3865ee2b3ab546d8b1f56d79cd6)
@@ -67,12 +67,12 @@
 bool uspace_frame_pointer_prev(stack_trace_context_t *ctx, uintptr_t *prev)
 {
-	return !copy_from_uspace((void *) prev,
-	    (uint32_t *) ctx->fp + FRAME_OFFSET_FP_PREV, sizeof(*prev));
+	return !copy_from_uspace(prev,
+	    ctx->fp + sizeof(uintptr_t) * FRAME_OFFSET_FP_PREV, sizeof(*prev));
 }
 
 bool uspace_return_address_get(stack_trace_context_t *ctx, uintptr_t *ra)
 {
-	return !copy_from_uspace((void *) ra,
-	    (uint32_t *) ctx->fp + FRAME_OFFSET_RA, sizeof(*ra));
+	return !copy_from_uspace(ra,
+	    ctx->fp + sizeof(uintptr_t) * FRAME_OFFSET_RA, sizeof(*ra));
 }