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-rw-r--r--innobase/buf/buf0buf.c32
-rw-r--r--innobase/buf/buf0flu.c19
2 files changed, 51 insertions, 0 deletions
diff --git a/innobase/buf/buf0buf.c b/innobase/buf/buf0buf.c
index ee8e8b91f8d..4524fa1a4f9 100644
--- a/innobase/buf/buf0buf.c
+++ b/innobase/buf/buf0buf.c
@@ -331,6 +331,11 @@ buf_page_print(
index->table_name,
index->name);
}
+ } else if (fil_page_get_type(read_buf) == FIL_PAGE_INODE) {
+ fprintf(stderr, "InnoDB: Page may be an 'inode' page\n");
+ } else if (fil_page_get_type(read_buf) == FIL_PAGE_IBUF_FREE_LIST) {
+ fprintf(stderr,
+ "InnoDB: Page may be an insert buffer free list page\n");
}
}
@@ -351,6 +356,8 @@ buf_block_init(
block->file_page_was_freed = FALSE;
+ block->check_index_page_at_flush = FALSE;
+
rw_lock_create(&(block->lock));
ut_ad(rw_lock_validate(&(block->lock)));
@@ -617,6 +624,29 @@ buf_page_peek_block(
}
/************************************************************************
+Resets the check_index_page_at_flush field of a page if found in the buffer
+pool. */
+
+void
+buf_reset_check_index_page_at_flush(
+/*================================*/
+ ulint space, /* in: space id */
+ ulint offset) /* in: page number */
+{
+ buf_block_t* block;
+
+ mutex_enter_fast(&(buf_pool->mutex));
+
+ block = buf_page_hash_get(space, offset);
+
+ if (block) {
+ block->check_index_page_at_flush = FALSE;
+ }
+
+ mutex_exit(&(buf_pool->mutex));
+}
+
+/************************************************************************
Returns the current state of is_hashed of a page. FALSE if the page is
not in the pool. NOTE that this operation does not fix the page in the
pool if it is found there. */
@@ -1185,6 +1215,8 @@ buf_page_init(
block->space = space;
block->offset = offset;
+ block->check_index_page_at_flush = FALSE;
+
block->lock_hash_val = lock_rec_hash(space, offset);
block->lock_mutex = NULL;
diff --git a/innobase/buf/buf0flu.c b/innobase/buf/buf0flu.c
index 4c6850af078..78bde60c9b2 100644
--- a/innobase/buf/buf0flu.c
+++ b/innobase/buf/buf0flu.c
@@ -15,6 +15,7 @@ Created 11/11/1995 Heikki Tuuri
#include "ut0byte.h"
#include "ut0lst.h"
+#include "page0page.h"
#include "fil0fil.h"
#include "buf0buf.h"
#include "buf0lru.h"
@@ -225,6 +226,24 @@ buf_flush_buffered_writes(void)
return;
}
+ for (i = 0; i < trx_doublewrite->first_free; i++) {
+ block = trx_doublewrite->buf_block_arr[i];
+
+ if (block->check_index_page_at_flush
+ && !page_simple_validate(block->frame)) {
+
+ buf_page_print(block->frame);
+
+ ut_print_timestamp(stderr);
+ fprintf(stderr,
+ " InnoDB: Apparent corruption of an index page\n"
+ "InnoDB: to be written to data file. We intentionally crash server\n"
+ "InnoDB: to prevent corrupt data from ending up in data\n"
+ "InnoDB: files.\n");
+ ut_a(0);
+ }
+ }
+
if (trx_doublewrite->first_free > TRX_SYS_DOUBLEWRITE_BLOCK_SIZE) {
len = TRX_SYS_DOUBLEWRITE_BLOCK_SIZE * UNIV_PAGE_SIZE;
} else {