From e52a2f1ace9c52d012fb0f9a0f89e811e709db85 Mon Sep 17 00:00:00 2001
From: "heikki@hundin.mysql.fi" <>
Date: Sun, 19 Oct 2003 20:31:32 +0300
Subject: [PATCH] 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 | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/innobase/os/os0file.c b/innobase/os/os0file.c
index 24bc0f1bdf9..55d0ade1bf7 100644
--- a/innobase/os/os0file.c
+++ b/innobase/os/os0file.c
@@ -2678,6 +2678,10 @@ consecutive_loop:
 		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);
 			}