os0file.c:

  Check that writes to data files always happen in to addresses divisible by 16 kB, and the chunk size is also divisible by 16 kB; a user reported 2 corrupt pages from Linux-2.4.20 where an index page seemed displaced


innobase/os/os0file.c:
  Check that writes to data files always happen in to addresses divisible by 16 kB, and the chunk size is also divisible by 16 kB; a user reported 2 corrupt pages from Linux-2.4.20 where an index page seemed displaced

innobase/os/os0file.c

@@ -2678,6 +2678,10 @@ os_aio_simulated_handle(
 		if (array == os_aio_write_array) {
 			if ((total_len % UNIV_PAGE_SIZE != 0)
 			    || (slot->offset % UNIV_PAGE_SIZE != 0)) {
+				fprintf(stderr,
+"InnoDB: Error: trying a displaced write to %s %lu %lu, len %lu\n",
+					slot->name, slot->offset_high,
+					slot->offset, total_len);
 				ut_a(0);
 			}