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buf0flu.c, os0file.c:

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Add more diagnostic code to determine when an lsn field gets corrupt; tracks a crash reported from one Itanium computer
This commit is contained in:
heikki@hundin.mysql.fi 2004-07-27 19:14:50 +03:00
parent 9f4e72ecd1
commit fb0b02415c
2 changed files with 57 additions and 0 deletions
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54
innobase/buf/buf0flu.c
View file

@ -213,7 +213,9 @@ buf_flush_buffered_writes(void)
/*===========================*/
{
buf_block_t* block;
byte* write_buf;
ulint len;
ulint len2;
ulint i;
if (trx_doublewrite == NULL) {
@ -240,6 +242,16 @@ buf_flush_buffered_writes(void)
block = trx_doublewrite->buf_block_arr[i];
ut_a(block->state == BUF_BLOCK_FILE_PAGE);
if (mach_read_from_4(block->frame + FIL_PAGE_LSN + 4)
!= mach_read_from_4(block->frame + UNIV_PAGE_SIZE
- FIL_PAGE_END_LSN_OLD_CHKSUM + 4)) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: ERROR: The page to be written seems corrupt!\n"
"InnoDB: The lsn fields do not match! Noticed in the buffer pool\n"
"InnoDB: before posting to the doublewrite buffer.\n");
}
if (block->check_index_page_at_flush
&& !page_simple_validate(block->frame)) {
@ -268,6 +280,19 @@ buf_flush_buffered_writes(void)
trx_doublewrite->block1, 0, len,
(void*)trx_doublewrite->write_buf, NULL);
write_buf = trx_doublewrite->write_buf;
for (len2 = 0; len2 + UNIV_PAGE_SIZE <= len; len2 += UNIV_PAGE_SIZE) {
if (mach_read_from_4(write_buf + len2 + FIL_PAGE_LSN + 4)
!= mach_read_from_4(write_buf + len2 + UNIV_PAGE_SIZE
- FIL_PAGE_END_LSN_OLD_CHKSUM + 4)) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: ERROR: The page to be written seems corrupt!\n"
"InnoDB: The lsn fields do not match! Noticed in the doublewrite block1.\n");
}
}
if (trx_doublewrite->first_free > TRX_SYS_DOUBLEWRITE_BLOCK_SIZE) {
len = (trx_doublewrite->first_free
- TRX_SYS_DOUBLEWRITE_BLOCK_SIZE) * UNIV_PAGE_SIZE;
@ -278,6 +303,22 @@ buf_flush_buffered_writes(void)
(void*)(trx_doublewrite->write_buf
+ TRX_SYS_DOUBLEWRITE_BLOCK_SIZE * UNIV_PAGE_SIZE),
NULL);
write_buf = trx_doublewrite->write_buf
+ TRX_SYS_DOUBLEWRITE_BLOCK_SIZE * UNIV_PAGE_SIZE;
for (len2 = 0; len2 + UNIV_PAGE_SIZE <= len;
len2 += UNIV_PAGE_SIZE) {
if (mach_read_from_4(write_buf + len2
+ FIL_PAGE_LSN + 4)
!= mach_read_from_4(write_buf + len2
+ UNIV_PAGE_SIZE
- FIL_PAGE_END_LSN_OLD_CHKSUM + 4)) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: ERROR: The page to be written seems corrupt!\n"
"InnoDB: The lsn fields do not match! Noticed in the doublewrite block2.\n");
}
}
}
/* Now flush the doublewrite buffer data to disk */
@ -291,6 +332,19 @@ buf_flush_buffered_writes(void)
for (i = 0; i < trx_doublewrite->first_free; i++) {
block = trx_doublewrite->buf_block_arr[i];
if (mach_read_from_4(block->frame + FIL_PAGE_LSN + 4)
!= mach_read_from_4(block->frame + UNIV_PAGE_SIZE
- FIL_PAGE_END_LSN_OLD_CHKSUM + 4)) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: ERROR: The page to be written seems corrupt!\n"
"InnoDB: The lsn fields do not match! Noticed in the buffer pool\n"
"InnoDB: after posting and flushing the doublewrite buffer.\n"
"InnoDB: Page buf fix count %lu, io fix %lu, state %lu\n",
(ulong)block->buf_fix_count, (ulong)block->io_fix,
(ulong)block->state);
}
fil_io(OS_FILE_WRITE | OS_AIO_SIMULATED_WAKE_LATER,
FALSE, block->space, block->offset, 0, UNIV_PAGE_SIZE,
(void*)block->frame, (void*)block);

3
innobase/os/os0file.c
View file

@ -2736,6 +2736,9 @@ consecutive_loop:
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: ERROR: The page to be written seems corrupt!\n");
fprintf(stderr,
"InnoDB: Writing a block of %lu bytes, currently writing at offset %lu\n",
(ulong)total_len, (ulong)len2);
buf_page_print(combined_buf + len2);
fprintf(stderr,
"InnoDB: ERROR: The page to be written seems corrupt!\n");