MDEV-12750 Fix crash recovery of key rotation

When MySQL 5.7.9 was merged to MariaDB 10.2.2, an important
debug assertion was omitted from mlog_write_initial_log_record_low().

mlog_write_initial_log_record_low(): Put back the assertion
mtr_t::is_named_space().

fil_crypt_start_encrypting_space(), fil_crypt_rotate_page():
Call mtr_t::set_named_space() before modifying any pages.

fsp_flags_try_adjust(): Call mtr_t::set_named_space(). This additional
breakage was introduced in the merge of MDEV-11623 from 10.1. It was
not caught because of the missing debug assertion in
mlog_write_initial_log_record_low().

Remove some suppressions from the encryption.innodb-redo-badkey test.

mysql-test/suite/encryption/r/innodb-redo-badkey.result

-call mtr.add_suppression("InnoDB: Block in space_id .* in file .* encrypted.");
-call mtr.add_suppression("Plugin 'file_key_management' .*");
+call mtr.add_suppression("Plugin 'file_key_management'");
 call mtr.add_suppression("Plugin 'InnoDB' init function returned error.");
-call mtr.add_suppression("Plugin 'InnoDB' registration as a STORAGE ENGINE failed.");
-call mtr.add_suppression("InnoDB: Read operation failed for tablespace .*");
-call mtr.add_suppression("InnoDB: Database page corruption on disk or a failed.*");
-call mtr.add_suppression("InnoDB: Recovery read page .*");
-call mtr.add_suppression("InnoDB: The page \[page id: space=[0-9]+, page number=[0-9]+\] in file test/t2 cannot be decrypted.");
-call mtr.add_suppression("InnoDB: The page \[page id: space=[0-9]+, page number=[0-9]+\] in file test/t3 cannot be decrypted.");
-call mtr.add_suppression("InnoDB: The page \[page id: space=[0-9]+, page number=[0-9]+\] in file test/t4 cannot be decrypted.");
-call mtr.add_suppression("InnoDB: The page \[page id: space=[0-9]+, page number=[0-9]+\] in file test/t1 cannot be decrypted.");
-call mtr.add_suppression("InnoDB: Missing MLOG_FILE_NAME or MLOG_FILE_DELETE .*");
-call mtr.add_suppression("InnoDB: Plugin initialization aborted .*");
-call mtr.add_suppression("InnoDB: ############### CORRUPT LOG RECORD FOUND ##################");
+call mtr.add_suppression("InnoDB: The page \[page id: space=[1-9][0-9]*, page number=[0-9]+\] in file test/t[1-4] cannot be decrypted");
+call mtr.add_suppression("InnoDB: Plugin initialization aborted");
+call mtr.add_suppression("Plugin 'InnoDB' registration as a STORAGE ENGINE failed");
 # Restart mysqld --file-key-management-filename=keys2.txt
 # Wait max 10 min for key encryption threads to encrypt all spaces
 SET GLOBAL innodb_file_format = `Barracuda`;

mysql-test/suite/encryption/t/innodb-redo-badkey.test

@@ -3,20 +3,11 @@
 # embedded does not support restart
 -- source include/not_embedded.inc
 
-call mtr.add_suppression("InnoDB: Block in space_id .* in file .* encrypted.");
-call mtr.add_suppression("Plugin 'file_key_management' .*");
+call mtr.add_suppression("Plugin 'file_key_management'");
 call mtr.add_suppression("Plugin 'InnoDB' init function returned error.");
-call mtr.add_suppression("Plugin 'InnoDB' registration as a STORAGE ENGINE failed.");
-call mtr.add_suppression("InnoDB: Read operation failed for tablespace .*");
-call mtr.add_suppression("InnoDB: Database page corruption on disk or a failed.*");
-call mtr.add_suppression("InnoDB: Recovery read page .*");
-call mtr.add_suppression("InnoDB: The page \[page id: space=[0-9]+, page number=[0-9]+\] in file test/t2 cannot be decrypted.");
-call mtr.add_suppression("InnoDB: The page \[page id: space=[0-9]+, page number=[0-9]+\] in file test/t3 cannot be decrypted.");
-call mtr.add_suppression("InnoDB: The page \[page id: space=[0-9]+, page number=[0-9]+\] in file test/t4 cannot be decrypted.");
-call mtr.add_suppression("InnoDB: The page \[page id: space=[0-9]+, page number=[0-9]+\] in file test/t1 cannot be decrypted.");
-call mtr.add_suppression("InnoDB: Missing MLOG_FILE_NAME or MLOG_FILE_DELETE .*");
-call mtr.add_suppression("InnoDB: Plugin initialization aborted .*");
-call mtr.add_suppression("InnoDB: ############### CORRUPT LOG RECORD FOUND ##################");
+call mtr.add_suppression("InnoDB: The page \[page id: space=[1-9][0-9]*, page number=[0-9]+\] in file test/t[1-4] cannot be decrypted");
+call mtr.add_suppression("InnoDB: Plugin initialization aborted");
+call mtr.add_suppression("Plugin 'InnoDB' registration as a STORAGE ENGINE failed");
 
 --echo # Restart mysqld --file-key-management-filename=keys2.txt
 -- let $restart_parameters=--file-key-management-filename=$MYSQL_TEST_DIR/std_data/keys2.txt

storage/innobase/fil/fil0crypt.cc

@@ -1004,7 +1004,8 @@ fil_crypt_start_encrypting_space(
 	do
 	{
 		mtr_t mtr;
-		mtr_start(&mtr);
+		mtr.start();
+		mtr.set_named_space(space);
 
 		/* 2 - get page 0 */
 		dberr_t err = DB_SUCCESS;
@@ -1020,7 +1021,7 @@ fil_crypt_start_encrypting_space(
 		crypt_data->type = CRYPT_SCHEME_1;
 		crypt_data->write_page0(space, frame, &mtr);
 
-		mtr_commit(&mtr);
+		mtr.commit();
 
 		/* record lsn of update */
 		lsn_t end_lsn = mtr.commit_lsn();
@@ -1758,12 +1759,11 @@ fil_crypt_rotate_page(
 	}
 
 	mtr_t mtr;
-	mtr_start(&mtr);
-	buf_block_t* block = fil_crypt_get_page_throttle(state,
-							 offset, &mtr,
-							 &sleeptime_ms);
-
-	if (block) {
+	mtr.start();
+	if (buf_block_t* block = fil_crypt_get_page_throttle(state,
+							     offset, &mtr,
+							     &sleeptime_ms)) {
+		mtr.set_named_space(space);
 
 		bool modified = false;
 		int needs_scrubbing = BTR_SCRUB_SKIP_PAGE;
@@ -1804,11 +1804,11 @@ fil_crypt_rotate_page(
 				BTR_SCRUB_PAGE_ALLOCATION_UNKNOWN);
 		}
 
-		mtr_commit(&mtr);
+		mtr.commit();
 		lsn_t end_lsn = mtr.commit_lsn();
 
 		if (needs_scrubbing == BTR_SCRUB_PAGE) {
-			mtr_start(&mtr);
+			mtr.start();
 			/*
 			* refetch page and allocation status
 			*/
@@ -1820,6 +1820,7 @@ fil_crypt_rotate_page(
 				&sleeptime_ms);
 
 			if (block) {
+				mtr.set_named_space(space);
 
 				/* get required table/index and index-locks */
 				needs_scrubbing = btr_scrub_recheck_page(
@@ -1981,6 +1982,7 @@ fil_crypt_flush_space(
 		    page_id_t(space->id, 0), page_size_t(space->flags),
 		    RW_X_LATCH, NULL, BUF_GET,
 		    __FILE__, __LINE__, &mtr, &err)) {
+		mtr.set_named_space(space);
 		crypt_data->write_page0(space, block->frame, &mtr);
 	}
 

storage/innobase/fil/fil0fil.cc

@@ -4773,7 +4773,7 @@ fsp_flags_try_adjust(ulint space_id, ulint flags)
 	ut_ad(fsp_flags_is_valid(flags));
 
 	mtr_t	mtr;
-	mtr_start(&mtr);
+	mtr.start();
 	if (buf_block_t* b = buf_page_get(
 		    page_id_t(space_id, 0), page_size_t(flags),
 		    RW_X_LATCH, &mtr)) {
@@ -4787,12 +4787,13 @@ fsp_flags_try_adjust(ulint space_id, ulint flags)
 				<< " to " << ib::hex(flags);
 		}
 		if (f != flags) {
+			mtr.set_named_space(space_id);
 			mlog_write_ulint(FSP_HEADER_OFFSET
 					 + FSP_SPACE_FLAGS + b->frame,
 					 flags, MLOG_4BYTES, &mtr);
 		}
 	}
-	mtr_commit(&mtr);
+	mtr.commit();
 }
 
 /** Determine if a matching tablespace exists in the InnoDB tablespace

storage/innobase/include/mtr0log.ic

@@ -76,10 +76,10 @@ mlog_catenate_ulint(
 	ulint		val,		/*!< in: value to write */
 	mlog_id_t	type)		/*!< in: type of value to write */
 {
-	ut_ad(MLOG_1BYTE == 1);
-	ut_ad(MLOG_2BYTES == 2);
-	ut_ad(MLOG_4BYTES == 4);
-	ut_ad(MLOG_8BYTES == 8);
+	compile_time_assert(MLOG_1BYTE == 1);
+	compile_time_assert(MLOG_2BYTES == 2);
+	compile_time_assert(MLOG_4BYTES == 4);
+	compile_time_assert(MLOG_8BYTES == 8);
 
 	byte*	ptr = mtr_buf->push<byte*>(type);
 
@@ -182,6 +182,14 @@ mlog_write_initial_log_record_low(
 	mtr_t*		mtr)
 {
 	ut_ad(type <= MLOG_BIGGEST_TYPE || EXTRA_CHECK_MLOG_NUMBER(type));
+	ut_ad(type == MLOG_FILE_NAME
+	      || type == MLOG_FILE_DELETE
+	      || type == MLOG_FILE_CREATE2
+	      || type == MLOG_FILE_RENAME2
+	      || type == MLOG_INDEX_LOAD
+	      || type == MLOG_TRUNCATE
+	      || type == MLOG_FILE_WRITE_CRYPT_DATA
+	      || mtr->is_named_space(space_id));
 
 	mach_write_to_1(log_ptr, type);
 	log_ptr++;