2569 	ASSERT(dbuf->dtb_tomax != NULL);  in dtrace_aggregate()
2570 	data = dbuf->dtb_tomax + offset + agg->dtag_base;  in dtrace_aggregate()
2572 	if ((tomax = buf->dtb_tomax) == NULL) {  in dtrace_aggregate()
2927 	saddr = (uintptr_t)src->dtb_tomax;  in dtrace_speculation_commit()
2956 	daddr = (uintptr_t)dest->dtb_tomax + offs;  in dtrace_speculation_commit()
2958 	saddr = (uintptr_t)src->dtb_tomax;  in dtrace_speculation_commit()
3076 	if (dest->dtb_tomax == NULL) {  in dtrace_speculation_clean_here()
3085 		if (src->dtb_tomax == NULL)  in dtrace_speculation_clean_here()
7335 		tomax = buf->dtb_tomax;  in dtrace_probe()
7523 				tomax = buf->dtb_tomax;  in dtrace_probe()
11972 	caddr_t tomax = buf->dtb_tomax;  in dtrace_buffer_switch()
11982 	buf->dtb_tomax = xamot;  in dtrace_buffer_switch()
12012 	if (buf->dtb_tomax != NULL) {  in dtrace_buffer_activate()
12065 		if (buf->dtb_tomax != NULL) {  in dtrace_buffer_alloc()
12075 		if ((buf->dtb_tomax = kmem_zalloc(size, KM_NOSLEEP)) == NULL)  in dtrace_buffer_alloc()
12113 			ASSERT(buf->dtb_tomax != NULL);  in dtrace_buffer_alloc()
12118 		if (buf->dtb_tomax != NULL) {  in dtrace_buffer_alloc()
12120 			kmem_free(buf->dtb_tomax, size);  in dtrace_buffer_alloc()
12123 		buf->dtb_tomax = NULL;  in dtrace_buffer_alloc()
12165 	if ((tomax = buf->dtb_tomax) == NULL) {  in dtrace_buffer_reserve()
12439 		bzero(buf->dtb_tomax + buf->dtb_offset,  in dtrace_buffer_polish()
12444 		bzero(buf->dtb_tomax + buf->dtb_offset,  in dtrace_buffer_polish()
12446 		bzero(buf->dtb_tomax, buf->dtb_xamot_offset);  in dtrace_buffer_polish()
12458 		if (buf->dtb_tomax == NULL) {  in dtrace_buffer_free()
12472 		kmem_free(buf->dtb_tomax, buf->dtb_size);  in dtrace_buffer_free()
12477 		buf->dtb_tomax = NULL;  in dtrace_buffer_free()
18430 			if (copyout(buf->dtb_tomax, (user_addr_t)desc.dtbd_data, sz) != 0) {  in dtrace_ioctl()
18451 		if (buf->dtb_tomax == NULL) {  in dtrace_ioctl()
18457 		cached = buf->dtb_tomax;  in dtrace_ioctl()
18473 		if (buf->dtb_tomax == cached) {  in dtrace_ioctl()