diff --git a/log-handler.c b/log-handler.c
new file mode 100644
index 0000000..0eb9553
--- /dev/null
+++ b/log-handler.c
@@ -0,0 +1,140 @@
+
+#include <endian.h>
+#include <err.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/mman.h>
+
+#include <linux/types.h>
+
+#include "console-server.h"
+
+struct log_handler {
+	struct handler	handler;
+	struct console	*console;
+	int		fd;
+	size_t		size;
+	size_t		maxsize;
+	int		pagesize;
+};
+
+
+static const char *filename = "uart.log";
+static const size_t logsize = 16 * 1024;
+
+static struct log_handler *to_log_handler(struct handler *handler)
+{
+	return container_of(handler, struct log_handler, handler);
+}
+
+static int log_init(struct handler *handler, struct console *console)
+{
+	struct log_handler *lh = to_log_handler(handler);
+	int rc;
+
+	lh->console = console;
+	lh->maxsize = logsize;
+	lh->pagesize = 4096;
+	lh->size = 0;
+
+	lh->fd = open(filename, O_RDWR | O_CREAT, 0644);
+	if (lh->fd < 0) {
+		warn("Can't open log buffer file %s", filename);
+		return -1;
+	}
+	rc = ftruncate(lh->fd, 0);
+	if (rc) {
+		warn("Can't truncate file %s", filename);
+		close(lh->fd);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int log_init_poll(struct handler *handler, struct pollfd *pollfd)
+{
+	(void)handler;
+	pollfd->fd = -1;
+	pollfd->events = 0;
+	return 0;
+}
+
+static int log_trim(struct log_handler *lh, size_t space)
+{
+	int rc, n_shift_pages, shift_len, shift_start;
+	off_t pos;
+	void *buf;
+
+	pos = lseek(lh->fd, 0, SEEK_CUR);
+
+	n_shift_pages = (space + lh->pagesize - 1) / lh->pagesize;
+	shift_start = n_shift_pages * lh->pagesize;
+	shift_len = pos - (n_shift_pages * lh->pagesize);
+
+	buf = mmap(NULL, pos, PROT_READ | PROT_WRITE, MAP_SHARED, lh->fd, 0);
+	if (buf == MAP_FAILED)
+		return -1;
+
+	memmove(buf, buf + shift_start, shift_len);
+
+	munmap(buf, pos);
+
+	lh->size = shift_len;
+	rc = ftruncate(lh->fd, lh->size);
+	if (rc)
+		warn("failed to truncate file");
+	lseek(lh->fd, 0, SEEK_END);
+
+	return 0;
+
+}
+
+static int log_data(struct handler *handler, uint8_t *buf, size_t len)
+{
+	struct log_handler *lh = to_log_handler(handler);
+	int rc;
+
+	if (len > lh->maxsize) {
+		buf += len - lh->maxsize;
+		len = lh->maxsize;
+	}
+
+	if (lh->size + len > lh->maxsize) {
+		rc = log_trim(lh, len);
+		if (rc)
+			return rc;
+	}
+
+	rc = write_buf_to_fd(lh->fd, buf, len);
+	if (rc)
+		return rc;
+
+	lh->size += len;
+
+	return 0;
+}
+
+static void log_fini(struct handler *handler)
+{
+	struct log_handler *lh = to_log_handler(handler);
+	close(lh->fd);
+}
+
+static struct log_handler log_handler = {
+	.handler = {
+		.name		= "log",
+		.init		= log_init,
+		.init_poll	= log_init_poll,
+		.data_in	= log_data,
+		.fini		= log_fini,
+	},
+};
+
+console_register_handler(&log_handler.handler);
+