Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-13103

InnoDB: Deal with page_compressed page corruption

Details

    • 10.2.12, 10.1.31, 10.3.6-1

    Description

      10.2 615b1f418944

      2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Starting crash recovery from checkpoint LSN=8964539
      2017-06-15 20:59:59 140495015678016 [ERROR] InnoDB: Corruption: Page is marked as compressed space: 32 name: test/t044 but uncompress failed with error: -3 size: 199 len: 16384 compression method: ZLIB.
      2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Page dump in ascii and hex (16384 bytes):
       len 16384; hex 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asc                               a /         9    [*j   ]   i  { < >' #G o   rd        riZ \ o n /     ;  p  d , < g ujJ  +   r#qp   4           0%% Q &$ + ypJ R q_    ]K 9{ =mv ( GKI    : C~fr  |W p  | o jM E    cp'"h       4 E q 6J Ik @|   ~                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                ;
      InnoDB: End of page dump
      

      2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Uncompressed page, stored checksum in field1 3735928559, calculated checksums for field1: crc32 1628319740/3887109642, innodb 612830638,  page type 37401 == PAGE_COMPRESSED_ENRYPTED.none 3735928559, stored checksum in field2 0, calculated checksums for field2: crc32 1628319740/3887109642, innodb 2087871921, none 3735928559,  page LSN 0 8901506, low 4 bytes of LSN at page end 0, page number (if stored to page already) 4, space id (if created with >= MySQL-4.1.1 and stored already) 32
      mysqld: /data/src/10.2/storage/innobase/buf/buf0buf.cc:1356: void buf_page_print(const byte*, const page_size_t&, ulint): Assertion `flags & BUF_PAGE_PRINT_NO_CRASH' failed.
      170615 20:59:59 [ERROR] mysqld got signal 6 ;
       
      #7  0x00007fc7894aaee2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
      #8  0x0000557e1b215626 in buf_page_print (read_buf=0x557e1e664000 "Þ­\276", <incomplete sequence \357>, page_size=..., flags=0) at /data/src/10.2/storage/innobase/buf/buf0buf.cc:1356
      #9  0x0000557e1b2b6917 in fil_decompress_page (page_buf=0x0, buf=0x557e1e664000 "Þ­\276", <incomplete sequence \357>, len=16384, write_size=0x0, return_error=true) at /data/src/10.2/storage/innobase/fil/fil0pagecompress.cc:651
      #10 0x0000557e1b22d3cc in buf_dblwr_process () at /data/src/10.2/storage/innobase/buf/buf0dblwr.cc:616
      #11 0x0000557e1b048a8c in recv_init_crash_recovery_spaces () at /data/src/10.2/storage/innobase/log/log0recv.cc:3103
      #12 0x0000557e1b049381 in recv_recovery_from_checkpoint_start (flush_lsn=1656445) at /data/src/10.2/storage/innobase/log/log0recv.cc:3279
      #13 0x0000557e1b15f6d1 in innobase_start_or_create_for_mysql () at /data/src/10.2/storage/innobase/srv/srv0start.cc:2215
      #14 0x0000557e1afa0315 in innobase_init (p=0x557e1d782bc0) at /data/src/10.2/storage/innobase/handler/ha_innodb.cc:4478
      #15 0x0000557e1ac96dd3 in ha_initialize_handlerton (plugin=0x557e1d697de0) at /data/src/10.2/sql/handler.cc:512
      #16 0x0000557e1aa41c0e in plugin_initialize (tmp_root=0x7fff7581b950, plugin=0x557e1d697de0, argc=0x557e1bf6a6b0 <remaining_argc>, argv=0x557e1d6433c8, options_only=false) at /data/src/10.2/sql/sql_plugin.cc:1407
      #17 0x0000557e1aa42817 in plugin_init (argc=0x557e1bf6a6b0 <remaining_argc>, argv=0x557e1d6433c8, flags=2) at /data/src/10.2/sql/sql_plugin.cc:1689
      #18 0x0000557e1a94fa35 in init_server_components () at /data/src/10.2/sql/mysqld.cc:5253
      #19 0x0000557e1a950aba in mysqld_main (argc=19, argv=0x557e1d6433c8) at /data/src/10.2/sql/mysqld.cc:5843
      #20 0x0000557e1a9459e0 in main (argc=19, argv=0x7fff7581c6e8) at /data/src/10.2/sql/main.cc:25
      

      To reproduce (set your basedir instead of <basedir>)

      git clone https://github.com/elenst/rqg --branch mdev13103 rqg-mdev13103
      cd rqg-mdev13103
      BASEDIR=<basedir> . ./mdev13103.cmd
      

      The test starts the server from basedir with encryption options as below, creates one table and runs simple INSERT as shown in mdev13103.yy. After 30 seconds it SIGKILLs the server and restarts it with the same options.

      --file-key-management
      --plugin-load-add=file_key_management.so
      --innodb-encrypt-tables
      --file-key-management-filename=$BASEDIR/mysql-test/std_data/keys.txt
      

      Attachments

        1. jan.opt
          0.2 kB
        2. jan.test
          1 kB

        Issue Links

          Activity

            elenst Elena Stepanova created issue -
            elenst Elena Stepanova made changes -
            Field Original Value New Value
            Assignee Elena Stepanova [ elenst ] Jan Lindström [ jplindst ]
            Description {noformat:title=10.2 615b1f418944}
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Starting crash recovery from checkpoint LSN=8964539
            2017-06-15 20:59:59 140495015678016 [ERROR] InnoDB: Corruption: Page is marked as compressed space: 32 name: test/t044 but uncompress failed with error: -3 size: 199 len: 16384 compression method: ZLIB.
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Page dump in ascii and hex (16384 bytes):
             len 16384; hex 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asc a / 9 [*j ] i { < >' #G o rd riZ \ o n / ; p d , < g ujJ + r#qp 4 0%% Q &$ + ypJ R q_ ]K 9{ =mv ( GKI : C~fr |W p | o jM E cp'"h 4 E q 6J Ik @| ~ ;
            InnoDB: End of page dump
            {noformat}
            {noformat}
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Uncompressed page, stored checksum in field1 3735928559, calculated checksums for field1: crc32 1628319740/3887109642, innodb 612830638, page type 37401 == PAGE_COMPRESSED_ENRYPTED.none 3735928559, stored checksum in field2 0, calculated checksums for field2: crc32 1628319740/3887109642, innodb 2087871921, none 3735928559, page LSN 0 8901506, low 4 bytes of LSN at page end 0, page number (if stored to page already) 4, space id (if created with >= MySQL-4.1.1 and stored already) 32
            mysqld: /data/src/10.2/storage/innobase/buf/buf0buf.cc:1356: void buf_page_print(const byte*, const page_size_t&, ulint): Assertion `flags & BUF_PAGE_PRINT_NO_CRASH' failed.
            170615 20:59:59 [ERROR] mysqld got signal 6 ;

            #7 0x00007fc7894aaee2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
            #8 0x0000557e1b215626 in buf_page_print (read_buf=0x557e1e664000 "Þ­\276", <incomplete sequence \357>, page_size=..., flags=0) at /data/src/10.2/storage/innobase/buf/buf0buf.cc:1356
            #9 0x0000557e1b2b6917 in fil_decompress_page (page_buf=0x0, buf=0x557e1e664000 "Þ­\276", <incomplete sequence \357>, len=16384, write_size=0x0, return_error=true) at /data/src/10.2/storage/innobase/fil/fil0pagecompress.cc:651
            #10 0x0000557e1b22d3cc in buf_dblwr_process () at /data/src/10.2/storage/innobase/buf/buf0dblwr.cc:616
            #11 0x0000557e1b048a8c in recv_init_crash_recovery_spaces () at /data/src/10.2/storage/innobase/log/log0recv.cc:3103
            #12 0x0000557e1b049381 in recv_recovery_from_checkpoint_start (flush_lsn=1656445) at /data/src/10.2/storage/innobase/log/log0recv.cc:3279
            #13 0x0000557e1b15f6d1 in innobase_start_or_create_for_mysql () at /data/src/10.2/storage/innobase/srv/srv0start.cc:2215
            #14 0x0000557e1afa0315 in innobase_init (p=0x557e1d782bc0) at /data/src/10.2/storage/innobase/handler/ha_innodb.cc:4478
            #15 0x0000557e1ac96dd3 in ha_initialize_handlerton (plugin=0x557e1d697de0) at /data/src/10.2/sql/handler.cc:512
            #16 0x0000557e1aa41c0e in plugin_initialize (tmp_root=0x7fff7581b950, plugin=0x557e1d697de0, argc=0x557e1bf6a6b0 <remaining_argc>, argv=0x557e1d6433c8, options_only=false) at /data/src/10.2/sql/sql_plugin.cc:1407
            #17 0x0000557e1aa42817 in plugin_init (argc=0x557e1bf6a6b0 <remaining_argc>, argv=0x557e1d6433c8, flags=2) at /data/src/10.2/sql/sql_plugin.cc:1689
            #18 0x0000557e1a94fa35 in init_server_components () at /data/src/10.2/sql/mysqld.cc:5253
            #19 0x0000557e1a950aba in mysqld_main (argc=19, argv=0x557e1d6433c8) at /data/src/10.2/sql/mysqld.cc:5843
            #20 0x0000557e1a9459e0 in main (argc=19, argv=0x7fff7581c6e8) at /data/src/10.2/sql/main.cc:25
            {noformat}
            {noformat:title=10.2 615b1f418944}
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Starting crash recovery from checkpoint LSN=8964539
            2017-06-15 20:59:59 140495015678016 [ERROR] InnoDB: Corruption: Page is marked as compressed space: 32 name: test/t044 but uncompress failed with error: -3 size: 199 len: 16384 compression method: ZLIB.
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Page dump in ascii and hex (16384 bytes):
             len 16384; hex 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asc a / 9 [*j ] i { < >' #G o rd riZ \ o n / ; p d , < g ujJ + r#qp 4 0%% Q &$ + ypJ R q_ ]K 9{ =mv ( GKI : C~fr |W p | o jM E cp'"h 4 E q 6J Ik @| ~ ;
            InnoDB: End of page dump
            {noformat}
            {noformat}
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Uncompressed page, stored checksum in field1 3735928559, calculated checksums for field1: crc32 1628319740/3887109642, innodb 612830638, page type 37401 == PAGE_COMPRESSED_ENRYPTED.none 3735928559, stored checksum in field2 0, calculated checksums for field2: crc32 1628319740/3887109642, innodb 2087871921, none 3735928559, page LSN 0 8901506, low 4 bytes of LSN at page end 0, page number (if stored to page already) 4, space id (if created with >= MySQL-4.1.1 and stored already) 32
            mysqld: /data/src/10.2/storage/innobase/buf/buf0buf.cc:1356: void buf_page_print(const byte*, const page_size_t&, ulint): Assertion `flags & BUF_PAGE_PRINT_NO_CRASH' failed.
            170615 20:59:59 [ERROR] mysqld got signal 6 ;

            #7 0x00007fc7894aaee2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
            #8 0x0000557e1b215626 in buf_page_print (read_buf=0x557e1e664000 "Þ­\276", <incomplete sequence \357>, page_size=..., flags=0) at /data/src/10.2/storage/innobase/buf/buf0buf.cc:1356
            #9 0x0000557e1b2b6917 in fil_decompress_page (page_buf=0x0, buf=0x557e1e664000 "Þ­\276", <incomplete sequence \357>, len=16384, write_size=0x0, return_error=true) at /data/src/10.2/storage/innobase/fil/fil0pagecompress.cc:651
            #10 0x0000557e1b22d3cc in buf_dblwr_process () at /data/src/10.2/storage/innobase/buf/buf0dblwr.cc:616
            #11 0x0000557e1b048a8c in recv_init_crash_recovery_spaces () at /data/src/10.2/storage/innobase/log/log0recv.cc:3103
            #12 0x0000557e1b049381 in recv_recovery_from_checkpoint_start (flush_lsn=1656445) at /data/src/10.2/storage/innobase/log/log0recv.cc:3279
            #13 0x0000557e1b15f6d1 in innobase_start_or_create_for_mysql () at /data/src/10.2/storage/innobase/srv/srv0start.cc:2215
            #14 0x0000557e1afa0315 in innobase_init (p=0x557e1d782bc0) at /data/src/10.2/storage/innobase/handler/ha_innodb.cc:4478
            #15 0x0000557e1ac96dd3 in ha_initialize_handlerton (plugin=0x557e1d697de0) at /data/src/10.2/sql/handler.cc:512
            #16 0x0000557e1aa41c0e in plugin_initialize (tmp_root=0x7fff7581b950, plugin=0x557e1d697de0, argc=0x557e1bf6a6b0 <remaining_argc>, argv=0x557e1d6433c8, options_only=false) at /data/src/10.2/sql/sql_plugin.cc:1407
            #17 0x0000557e1aa42817 in plugin_init (argc=0x557e1bf6a6b0 <remaining_argc>, argv=0x557e1d6433c8, flags=2) at /data/src/10.2/sql/sql_plugin.cc:1689
            #18 0x0000557e1a94fa35 in init_server_components () at /data/src/10.2/sql/mysqld.cc:5253
            #19 0x0000557e1a950aba in mysqld_main (argc=19, argv=0x557e1d6433c8) at /data/src/10.2/sql/mysqld.cc:5843
            #20 0x0000557e1a9459e0 in main (argc=19, argv=0x7fff7581c6e8) at /data/src/10.2/sql/main.cc:25
            {noformat}

            {noformat:title=To reproduce (set your basedir instead of <basedir>)}
            git clone https://github.com/elenst/rqg --branch mdev13103 rqg-mdev13103
            cd rqg-mdev13103
            BASEDIR=<basedir> . ./mdev13103.cmd
            {noformat}
            elenst Elena Stepanova made changes -
            Description {noformat:title=10.2 615b1f418944}
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Starting crash recovery from checkpoint LSN=8964539
            2017-06-15 20:59:59 140495015678016 [ERROR] InnoDB: Corruption: Page is marked as compressed space: 32 name: test/t044 but uncompress failed with error: -3 size: 199 len: 16384 compression method: ZLIB.
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Page dump in ascii and hex (16384 bytes):
             len 16384; hex 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asc a / 9 [*j ] i { < >' #G o rd riZ \ o n / ; p d , < g ujJ + r#qp 4 0%% Q &$ + ypJ R q_ ]K 9{ =mv ( GKI : C~fr |W p | o jM E cp'"h 4 E q 6J Ik @| ~ ;
            InnoDB: End of page dump
            {noformat}
            {noformat}
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Uncompressed page, stored checksum in field1 3735928559, calculated checksums for field1: crc32 1628319740/3887109642, innodb 612830638, page type 37401 == PAGE_COMPRESSED_ENRYPTED.none 3735928559, stored checksum in field2 0, calculated checksums for field2: crc32 1628319740/3887109642, innodb 2087871921, none 3735928559, page LSN 0 8901506, low 4 bytes of LSN at page end 0, page number (if stored to page already) 4, space id (if created with >= MySQL-4.1.1 and stored already) 32
            mysqld: /data/src/10.2/storage/innobase/buf/buf0buf.cc:1356: void buf_page_print(const byte*, const page_size_t&, ulint): Assertion `flags & BUF_PAGE_PRINT_NO_CRASH' failed.
            170615 20:59:59 [ERROR] mysqld got signal 6 ;

            #7 0x00007fc7894aaee2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
            #8 0x0000557e1b215626 in buf_page_print (read_buf=0x557e1e664000 "Þ­\276", <incomplete sequence \357>, page_size=..., flags=0) at /data/src/10.2/storage/innobase/buf/buf0buf.cc:1356
            #9 0x0000557e1b2b6917 in fil_decompress_page (page_buf=0x0, buf=0x557e1e664000 "Þ­\276", <incomplete sequence \357>, len=16384, write_size=0x0, return_error=true) at /data/src/10.2/storage/innobase/fil/fil0pagecompress.cc:651
            #10 0x0000557e1b22d3cc in buf_dblwr_process () at /data/src/10.2/storage/innobase/buf/buf0dblwr.cc:616
            #11 0x0000557e1b048a8c in recv_init_crash_recovery_spaces () at /data/src/10.2/storage/innobase/log/log0recv.cc:3103
            #12 0x0000557e1b049381 in recv_recovery_from_checkpoint_start (flush_lsn=1656445) at /data/src/10.2/storage/innobase/log/log0recv.cc:3279
            #13 0x0000557e1b15f6d1 in innobase_start_or_create_for_mysql () at /data/src/10.2/storage/innobase/srv/srv0start.cc:2215
            #14 0x0000557e1afa0315 in innobase_init (p=0x557e1d782bc0) at /data/src/10.2/storage/innobase/handler/ha_innodb.cc:4478
            #15 0x0000557e1ac96dd3 in ha_initialize_handlerton (plugin=0x557e1d697de0) at /data/src/10.2/sql/handler.cc:512
            #16 0x0000557e1aa41c0e in plugin_initialize (tmp_root=0x7fff7581b950, plugin=0x557e1d697de0, argc=0x557e1bf6a6b0 <remaining_argc>, argv=0x557e1d6433c8, options_only=false) at /data/src/10.2/sql/sql_plugin.cc:1407
            #17 0x0000557e1aa42817 in plugin_init (argc=0x557e1bf6a6b0 <remaining_argc>, argv=0x557e1d6433c8, flags=2) at /data/src/10.2/sql/sql_plugin.cc:1689
            #18 0x0000557e1a94fa35 in init_server_components () at /data/src/10.2/sql/mysqld.cc:5253
            #19 0x0000557e1a950aba in mysqld_main (argc=19, argv=0x557e1d6433c8) at /data/src/10.2/sql/mysqld.cc:5843
            #20 0x0000557e1a9459e0 in main (argc=19, argv=0x7fff7581c6e8) at /data/src/10.2/sql/main.cc:25
            {noformat}

            {noformat:title=To reproduce (set your basedir instead of <basedir>)}
            git clone https://github.com/elenst/rqg --branch mdev13103 rqg-mdev13103
            cd rqg-mdev13103
            BASEDIR=<basedir> . ./mdev13103.cmd
            {noformat}
            {noformat:title=10.2 615b1f418944}
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Starting crash recovery from checkpoint LSN=8964539
            2017-06-15 20:59:59 140495015678016 [ERROR] InnoDB: Corruption: Page is marked as compressed space: 32 name: test/t044 but uncompress failed with error: -3 size: 199 len: 16384 compression method: ZLIB.
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Page dump in ascii and hex (16384 bytes):
             len 16384; hex 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asc a / 9 [*j ] i { < >' #G o rd riZ \ o n / ; p d , < g ujJ + r#qp 4 0%% Q &$ + ypJ R q_ ]K 9{ =mv ( GKI : C~fr |W p | o jM E cp'"h 4 E q 6J Ik @| ~ ;
            InnoDB: End of page dump
            {noformat}
            {noformat}
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Uncompressed page, stored checksum in field1 3735928559, calculated checksums for field1: crc32 1628319740/3887109642, innodb 612830638, page type 37401 == PAGE_COMPRESSED_ENRYPTED.none 3735928559, stored checksum in field2 0, calculated checksums for field2: crc32 1628319740/3887109642, innodb 2087871921, none 3735928559, page LSN 0 8901506, low 4 bytes of LSN at page end 0, page number (if stored to page already) 4, space id (if created with >= MySQL-4.1.1 and stored already) 32
            mysqld: /data/src/10.2/storage/innobase/buf/buf0buf.cc:1356: void buf_page_print(const byte*, const page_size_t&, ulint): Assertion `flags & BUF_PAGE_PRINT_NO_CRASH' failed.
            170615 20:59:59 [ERROR] mysqld got signal 6 ;

            #7 0x00007fc7894aaee2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
            #8 0x0000557e1b215626 in buf_page_print (read_buf=0x557e1e664000 "Þ­\276", <incomplete sequence \357>, page_size=..., flags=0) at /data/src/10.2/storage/innobase/buf/buf0buf.cc:1356
            #9 0x0000557e1b2b6917 in fil_decompress_page (page_buf=0x0, buf=0x557e1e664000 "Þ­\276", <incomplete sequence \357>, len=16384, write_size=0x0, return_error=true) at /data/src/10.2/storage/innobase/fil/fil0pagecompress.cc:651
            #10 0x0000557e1b22d3cc in buf_dblwr_process () at /data/src/10.2/storage/innobase/buf/buf0dblwr.cc:616
            #11 0x0000557e1b048a8c in recv_init_crash_recovery_spaces () at /data/src/10.2/storage/innobase/log/log0recv.cc:3103
            #12 0x0000557e1b049381 in recv_recovery_from_checkpoint_start (flush_lsn=1656445) at /data/src/10.2/storage/innobase/log/log0recv.cc:3279
            #13 0x0000557e1b15f6d1 in innobase_start_or_create_for_mysql () at /data/src/10.2/storage/innobase/srv/srv0start.cc:2215
            #14 0x0000557e1afa0315 in innobase_init (p=0x557e1d782bc0) at /data/src/10.2/storage/innobase/handler/ha_innodb.cc:4478
            #15 0x0000557e1ac96dd3 in ha_initialize_handlerton (plugin=0x557e1d697de0) at /data/src/10.2/sql/handler.cc:512
            #16 0x0000557e1aa41c0e in plugin_initialize (tmp_root=0x7fff7581b950, plugin=0x557e1d697de0, argc=0x557e1bf6a6b0 <remaining_argc>, argv=0x557e1d6433c8, options_only=false) at /data/src/10.2/sql/sql_plugin.cc:1407
            #17 0x0000557e1aa42817 in plugin_init (argc=0x557e1bf6a6b0 <remaining_argc>, argv=0x557e1d6433c8, flags=2) at /data/src/10.2/sql/sql_plugin.cc:1689
            #18 0x0000557e1a94fa35 in init_server_components () at /data/src/10.2/sql/mysqld.cc:5253
            #19 0x0000557e1a950aba in mysqld_main (argc=19, argv=0x557e1d6433c8) at /data/src/10.2/sql/mysqld.cc:5843
            #20 0x0000557e1a9459e0 in main (argc=19, argv=0x7fff7581c6e8) at /data/src/10.2/sql/main.cc:25
            {noformat}

            {noformat:title=To reproduce (set your basedir instead of <basedir>)}
            git clone https://github.com/elenst/rqg --branch mdev13103 rqg-mdev13103
            cd rqg-mdev13103
            BASEDIR=<basedir> . ./mdev13103.cmd
            {noformat}
            The test starts the server from {{basedir}} with options listed in {{mdev13103.cmd}} (those with {{--mysqld}} prefix, creates one table and runs simple {{INSERT}} as shown in {{mdev13103.yy}}. After 30 seconds it SIGKILLs the server and restarts it with the same options.
            elenst Elena Stepanova made changes -
            Description {noformat:title=10.2 615b1f418944}
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Starting crash recovery from checkpoint LSN=8964539
            2017-06-15 20:59:59 140495015678016 [ERROR] InnoDB: Corruption: Page is marked as compressed space: 32 name: test/t044 but uncompress failed with error: -3 size: 199 len: 16384 compression method: ZLIB.
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Page dump in ascii and hex (16384 bytes):
             len 16384; hex 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asc a / 9 [*j ] i { < >' #G o rd riZ \ o n / ; p d , < g ujJ + r#qp 4 0%% Q &$ + ypJ R q_ ]K 9{ =mv ( GKI : C~fr |W p | o jM E cp'"h 4 E q 6J Ik @| ~ ;
            InnoDB: End of page dump
            {noformat}
            {noformat}
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Uncompressed page, stored checksum in field1 3735928559, calculated checksums for field1: crc32 1628319740/3887109642, innodb 612830638, page type 37401 == PAGE_COMPRESSED_ENRYPTED.none 3735928559, stored checksum in field2 0, calculated checksums for field2: crc32 1628319740/3887109642, innodb 2087871921, none 3735928559, page LSN 0 8901506, low 4 bytes of LSN at page end 0, page number (if stored to page already) 4, space id (if created with >= MySQL-4.1.1 and stored already) 32
            mysqld: /data/src/10.2/storage/innobase/buf/buf0buf.cc:1356: void buf_page_print(const byte*, const page_size_t&, ulint): Assertion `flags & BUF_PAGE_PRINT_NO_CRASH' failed.
            170615 20:59:59 [ERROR] mysqld got signal 6 ;

            #7 0x00007fc7894aaee2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
            #8 0x0000557e1b215626 in buf_page_print (read_buf=0x557e1e664000 "Þ­\276", <incomplete sequence \357>, page_size=..., flags=0) at /data/src/10.2/storage/innobase/buf/buf0buf.cc:1356
            #9 0x0000557e1b2b6917 in fil_decompress_page (page_buf=0x0, buf=0x557e1e664000 "Þ­\276", <incomplete sequence \357>, len=16384, write_size=0x0, return_error=true) at /data/src/10.2/storage/innobase/fil/fil0pagecompress.cc:651
            #10 0x0000557e1b22d3cc in buf_dblwr_process () at /data/src/10.2/storage/innobase/buf/buf0dblwr.cc:616
            #11 0x0000557e1b048a8c in recv_init_crash_recovery_spaces () at /data/src/10.2/storage/innobase/log/log0recv.cc:3103
            #12 0x0000557e1b049381 in recv_recovery_from_checkpoint_start (flush_lsn=1656445) at /data/src/10.2/storage/innobase/log/log0recv.cc:3279
            #13 0x0000557e1b15f6d1 in innobase_start_or_create_for_mysql () at /data/src/10.2/storage/innobase/srv/srv0start.cc:2215
            #14 0x0000557e1afa0315 in innobase_init (p=0x557e1d782bc0) at /data/src/10.2/storage/innobase/handler/ha_innodb.cc:4478
            #15 0x0000557e1ac96dd3 in ha_initialize_handlerton (plugin=0x557e1d697de0) at /data/src/10.2/sql/handler.cc:512
            #16 0x0000557e1aa41c0e in plugin_initialize (tmp_root=0x7fff7581b950, plugin=0x557e1d697de0, argc=0x557e1bf6a6b0 <remaining_argc>, argv=0x557e1d6433c8, options_only=false) at /data/src/10.2/sql/sql_plugin.cc:1407
            #17 0x0000557e1aa42817 in plugin_init (argc=0x557e1bf6a6b0 <remaining_argc>, argv=0x557e1d6433c8, flags=2) at /data/src/10.2/sql/sql_plugin.cc:1689
            #18 0x0000557e1a94fa35 in init_server_components () at /data/src/10.2/sql/mysqld.cc:5253
            #19 0x0000557e1a950aba in mysqld_main (argc=19, argv=0x557e1d6433c8) at /data/src/10.2/sql/mysqld.cc:5843
            #20 0x0000557e1a9459e0 in main (argc=19, argv=0x7fff7581c6e8) at /data/src/10.2/sql/main.cc:25
            {noformat}

            {noformat:title=To reproduce (set your basedir instead of <basedir>)}
            git clone https://github.com/elenst/rqg --branch mdev13103 rqg-mdev13103
            cd rqg-mdev13103
            BASEDIR=<basedir> . ./mdev13103.cmd
            {noformat}
            The test starts the server from {{basedir}} with options listed in {{mdev13103.cmd}} (those with {{--mysqld}} prefix, creates one table and runs simple {{INSERT}} as shown in {{mdev13103.yy}}. After 30 seconds it SIGKILLs the server and restarts it with the same options.
            {noformat:title=10.2 615b1f418944}
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Starting crash recovery from checkpoint LSN=8964539
            2017-06-15 20:59:59 140495015678016 [ERROR] InnoDB: Corruption: Page is marked as compressed space: 32 name: test/t044 but uncompress failed with error: -3 size: 199 len: 16384 compression method: ZLIB.
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Page dump in ascii and hex (16384 bytes):
             len 16384; hex 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asc a / 9 [*j ] i { < >' #G o rd riZ \ o n / ; p d , < g ujJ + r#qp 4 0%% Q &$ + ypJ R q_ ]K 9{ =mv ( GKI : C~fr |W p | o jM E cp'"h 4 E q 6J Ik @| ~ ;
            InnoDB: End of page dump
            {noformat}
            {noformat}
            2017-06-15 20:59:59 140495015678016 [Note] InnoDB: Uncompressed page, stored checksum in field1 3735928559, calculated checksums for field1: crc32 1628319740/3887109642, innodb 612830638, page type 37401 == PAGE_COMPRESSED_ENRYPTED.none 3735928559, stored checksum in field2 0, calculated checksums for field2: crc32 1628319740/3887109642, innodb 2087871921, none 3735928559, page LSN 0 8901506, low 4 bytes of LSN at page end 0, page number (if stored to page already) 4, space id (if created with >= MySQL-4.1.1 and stored already) 32
            mysqld: /data/src/10.2/storage/innobase/buf/buf0buf.cc:1356: void buf_page_print(const byte*, const page_size_t&, ulint): Assertion `flags & BUF_PAGE_PRINT_NO_CRASH' failed.
            170615 20:59:59 [ERROR] mysqld got signal 6 ;

            #7 0x00007fc7894aaee2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
            #8 0x0000557e1b215626 in buf_page_print (read_buf=0x557e1e664000 "Þ­\276", <incomplete sequence \357>, page_size=..., flags=0) at /data/src/10.2/storage/innobase/buf/buf0buf.cc:1356
            #9 0x0000557e1b2b6917 in fil_decompress_page (page_buf=0x0, buf=0x557e1e664000 "Þ­\276", <incomplete sequence \357>, len=16384, write_size=0x0, return_error=true) at /data/src/10.2/storage/innobase/fil/fil0pagecompress.cc:651
            #10 0x0000557e1b22d3cc in buf_dblwr_process () at /data/src/10.2/storage/innobase/buf/buf0dblwr.cc:616
            #11 0x0000557e1b048a8c in recv_init_crash_recovery_spaces () at /data/src/10.2/storage/innobase/log/log0recv.cc:3103
            #12 0x0000557e1b049381 in recv_recovery_from_checkpoint_start (flush_lsn=1656445) at /data/src/10.2/storage/innobase/log/log0recv.cc:3279
            #13 0x0000557e1b15f6d1 in innobase_start_or_create_for_mysql () at /data/src/10.2/storage/innobase/srv/srv0start.cc:2215
            #14 0x0000557e1afa0315 in innobase_init (p=0x557e1d782bc0) at /data/src/10.2/storage/innobase/handler/ha_innodb.cc:4478
            #15 0x0000557e1ac96dd3 in ha_initialize_handlerton (plugin=0x557e1d697de0) at /data/src/10.2/sql/handler.cc:512
            #16 0x0000557e1aa41c0e in plugin_initialize (tmp_root=0x7fff7581b950, plugin=0x557e1d697de0, argc=0x557e1bf6a6b0 <remaining_argc>, argv=0x557e1d6433c8, options_only=false) at /data/src/10.2/sql/sql_plugin.cc:1407
            #17 0x0000557e1aa42817 in plugin_init (argc=0x557e1bf6a6b0 <remaining_argc>, argv=0x557e1d6433c8, flags=2) at /data/src/10.2/sql/sql_plugin.cc:1689
            #18 0x0000557e1a94fa35 in init_server_components () at /data/src/10.2/sql/mysqld.cc:5253
            #19 0x0000557e1a950aba in mysqld_main (argc=19, argv=0x557e1d6433c8) at /data/src/10.2/sql/mysqld.cc:5843
            #20 0x0000557e1a9459e0 in main (argc=19, argv=0x7fff7581c6e8) at /data/src/10.2/sql/main.cc:25
            {noformat}

            {noformat:title=To reproduce (set your basedir instead of <basedir>)}
            git clone https://github.com/elenst/rqg --branch mdev13103 rqg-mdev13103
            cd rqg-mdev13103
            BASEDIR=<basedir> . ./mdev13103.cmd
            {noformat}
            The test starts the server from {{basedir}} with encryption options as below, creates one table and runs simple {{INSERT}} as shown in {{mdev13103.yy}}. After 30 seconds it SIGKILLs the server and restarts it with the same options.
            {noformat}
            --file-key-management
            --plugin-load-add=file_key_management.so
            --innodb-encrypt-tables
            --file-key-management-filename=$BASEDIR/mysql-test/std_data/keys.txt
            {noformat}

            There are multiple completely unrelated reasons why InnoDB dumps a corrupted page an intentionally crashes.

            I pushed to 10.0 and merged so far up to 10.2 the removal of the 'flags' parameter of buf_page_print().
            After this refactoring, you will no longer see the same assertion failure for each failure. Instead, you should see an assertion failure in one of the callers of buf_page_print().

            I think that this particular issue should be used for only tracking the originally reported problem: inability to decompress (or decrypt) a page during the redo log apply phase of InnoDB crash recovery. New tickets should be filed for each different type of failure.

            marko Marko Mäkelä added a comment - There are multiple completely unrelated reasons why InnoDB dumps a corrupted page an intentionally crashes. I pushed to 10.0 and merged so far up to 10.2 the removal of the 'flags' parameter of buf_page_print(). After this refactoring, you will no longer see the same assertion failure for each failure. Instead, you should see an assertion failure in one of the callers of buf_page_print(). I think that this particular issue should be used for only tracking the originally reported problem: inability to decompress (or decrypt) a page during the redo log apply phase of InnoDB crash recovery. New tickets should be filed for each different type of failure.
            marko Marko Mäkelä made changes -
            Summary Assertion `flags & BUF_PAGE_PRINT_NO_CRASH' failed in buf_page_print InnoDB crash recovery fails to decompress a page in buf_dblwr_process()

            I thought a little more about this bug.
            It is clearly outright wrong to assume that the doublewrite buffer always contains valid pages. The very purpose of the doublewrite buffer is to protect against partial writes.
            Any bad copy of a page in the doublewrite buffer should ideally be ignored (but is not always; see MDEV-11799).

            It seems to me that the logic in buf_dblwr_process() and fil_decompress_page() is obviously flawed:

            		if (is_all_zero) {
            			/* We will check if the copy in the
            			doublewrite buffer is valid. If not, we will
            			ignore this page (there should be redo log
            			records to initialize it). */
            		} else {
            			if (fil_page_is_compressed_encrypted(read_buf) ||
            			    fil_page_is_compressed(read_buf)) {
            				/* Decompress the page before
            				validating the checksum. */
            				fil_decompress_page(
            					NULL, read_buf, srv_page_size,
            					NULL, true);
            			}
            

            The above code in buf_dblwr_process() is validating the original page in the data file. If the page header was written so that the entry condition to fil_decompress_page() holds, then fil_decompress_page() would be invoked, and it would fail. The last parameter is return_error=true (what does that exactly mean?)
            At least one branch in fil_decompress_page() is ignoring this request, and instead going to the branch that would trigger ut_ad() failure in a debug server:

            	default:
            		goto err_exit;
            		if (return_error) {
            			goto error_return;
            		}
            

            The code after the first goto is unreachable.

            There probably are other problems with page_compressed=yes recovery. I tried this simple change to a test, and recovery completely fails:

            diff --git a/mysql-test/suite/innodb/t/doublewrite.test b/mysql-test/suite/innodb/t/doublewrite.test
            index bdeaba2dcec..e67b5816ea4 100644
            --- a/mysql-test/suite/innodb/t/doublewrite.test
            +++ b/mysql-test/suite/innodb/t/doublewrite.test
            @@ -30,7 +30,7 @@ show variables like 'innodb_doublewrite';
             show variables like 'innodb_fil_make_page_dirty_debug';
             show variables like 'innodb_saved_page_number_debug';
             
            -create table t1 (f1 int primary key, f2 blob) engine=innodb;
            +create table t1 (f1 int primary key, f2 blob) engine=innodb page_compressed=yes;
             
             start transaction;
             insert into t1 values(1, repeat('#',12));
            

            CURRENT_TEST: innodb.doublewrite
            mysqltest: At line 118: query 'select f1, f2 from t1' failed: 1286: Unknown storage engine 'InnoDB'
            

            The reason appears to be that the doublewrite buffer recovery is not working at all for the intentionally corrupted first page of the file:

            2017-09-06 21:40:24 140410333218688 [Note] InnoDB: Starting crash recovery from checkpoint LSN=3116730
            2017-09-06 21:40:24 140410333218688 [ERROR] InnoDB: Header page consists of zero bytes in datafile: ./test/t1.ibd, Space ID:0, Flags: 0. Please refer to http://dev.mysql.com/doc/refman/5.7/en/innodb-troubleshooting-datadict.html for how to resolve the issue.
            …
            2017-09-06 21:40:24 140410333218688 [ERROR] InnoDB: Datafile './test/t1.ibd' is corrupted. Cannot determine the space ID from the first 64 pages.
            2017-09-06 21:40:24 140410333218688 [ERROR] InnoDB: Tablespace 4 was not found at ./test/t1.ibd.
            2017-09-06 21:40:24 140410333218688 [ERROR] InnoDB: Set innodb_force_recovery=1 to ignore this and to permanently lose all changes to the tablespace.
            2017-09-06 21:40:24 140410333218688 [ERROR] InnoDB: Plugin initialization aborted at srv0start.cc[2240] with error Tablespace not found
            2017-09-06 21:40:25 140410333218688 [Note] InnoDB: Starting shutdown...
            …
            2017-09-06 21:40:25 140410333218688 [Note] /mariadb/10.2/build/sql/mysqld: ready for connections.
            Version: '10.2.9-MariaDB-debug-log'  socket: '/mariadb/10.2/build/mysql-test/var/tmp/mysqld.1.sock'  port: 16000  Source distribution
            

            Why was nothing recovered from the doublewrite buffer? InnoDB in MariaDB 10.2 applies doublewrite buffer right before starting to read data pages for which there is redo log to apply, by calling buf_dblwr_process() in recv_init_crash_recovery_spaces().

            In 10.1, I tried a different patch, and this use case seems to work, for all page sizes, both XtraDB and InnoDB.

            diff --git a/mysql-test/suite/innodb/t/doublewrite.test b/mysql-test/suite/innodb/t/doublewrite.test
            index aba3d6ecff5..890ee4e580c 100644
            --- a/mysql-test/suite/innodb/t/doublewrite.test
            +++ b/mysql-test/suite/innodb/t/doublewrite.test
            @@ -31,7 +31,12 @@ show variables like 'innodb_doublewrite';
             show variables like 'innodb_fil_make_page_dirty_debug';
             show variables like 'innodb_saved_page_number_debug';
             
            -create table t1 (f1 int primary key, f2 blob) engine=innodb;
            +--disable_warnings
            +SET GLOBAL innodb_file_format = `Barracuda`;
            +SET GLOBAL innodb_file_per_table = ON;
            +SET GLOBAL innodb_compression_algorithm = 1;
            +--enable_warnings
            +create table t1 (f1 int primary key, f2 blob) engine=innodb page_compressed=1;
             
             start transaction;
             insert into t1 values(1, repeat('#',12));
            

            I still do not know if 10.1 can always tolerate a partially written copy of a page_compressed page in the doublewrite buffer. We need a test for that, already in 10.1. Also a test for encrypted pages in the doublewrite buffer would be highly useful.

            marko Marko Mäkelä added a comment - I thought a little more about this bug. It is clearly outright wrong to assume that the doublewrite buffer always contains valid pages. The very purpose of the doublewrite buffer is to protect against partial writes. Any bad copy of a page in the doublewrite buffer should ideally be ignored (but is not always; see MDEV-11799 ). It seems to me that the logic in buf_dblwr_process() and fil_decompress_page() is obviously flawed: if (is_all_zero) { /* We will check if the copy in the doublewrite buffer is valid. If not, we will ignore this page (there should be redo log records to initialize it). */ } else { if (fil_page_is_compressed_encrypted(read_buf) || fil_page_is_compressed(read_buf)) { /* Decompress the page before validating the checksum. */ fil_decompress_page( NULL, read_buf, srv_page_size, NULL, true); } The above code in buf_dblwr_process() is validating the original page in the data file. If the page header was written so that the entry condition to fil_decompress_page() holds, then fil_decompress_page() would be invoked, and it would fail. The last parameter is return_error=true (what does that exactly mean?) At least one branch in fil_decompress_page() is ignoring this request, and instead going to the branch that would trigger ut_ad() failure in a debug server: default: goto err_exit; if (return_error) { goto error_return; } The code after the first goto is unreachable. There probably are other problems with page_compressed=yes recovery. I tried this simple change to a test, and recovery completely fails: diff --git a/mysql-test/suite/innodb/t/doublewrite.test b/mysql-test/suite/innodb/t/doublewrite.test index bdeaba2dcec..e67b5816ea4 100644 --- a/mysql-test/suite/innodb/t/doublewrite.test +++ b/mysql-test/suite/innodb/t/doublewrite.test @@ -30,7 +30,7 @@ show variables like 'innodb_doublewrite'; show variables like 'innodb_fil_make_page_dirty_debug'; show variables like 'innodb_saved_page_number_debug'; -create table t1 (f1 int primary key, f2 blob) engine=innodb; +create table t1 (f1 int primary key, f2 blob) engine=innodb page_compressed=yes; start transaction; insert into t1 values(1, repeat('#',12)); CURRENT_TEST: innodb.doublewrite mysqltest: At line 118: query 'select f1, f2 from t1' failed: 1286: Unknown storage engine 'InnoDB' The reason appears to be that the doublewrite buffer recovery is not working at all for the intentionally corrupted first page of the file: 2017-09-06 21:40:24 140410333218688 [Note] InnoDB: Starting crash recovery from checkpoint LSN=3116730 2017-09-06 21:40:24 140410333218688 [ERROR] InnoDB: Header page consists of zero bytes in datafile: ./test/t1.ibd, Space ID:0, Flags: 0. Please refer to http://dev.mysql.com/doc/refman/5.7/en/innodb-troubleshooting-datadict.html for how to resolve the issue. … 2017-09-06 21:40:24 140410333218688 [ERROR] InnoDB: Datafile './test/t1.ibd' is corrupted. Cannot determine the space ID from the first 64 pages. 2017-09-06 21:40:24 140410333218688 [ERROR] InnoDB: Tablespace 4 was not found at ./test/t1.ibd. 2017-09-06 21:40:24 140410333218688 [ERROR] InnoDB: Set innodb_force_recovery=1 to ignore this and to permanently lose all changes to the tablespace. 2017-09-06 21:40:24 140410333218688 [ERROR] InnoDB: Plugin initialization aborted at srv0start.cc[2240] with error Tablespace not found 2017-09-06 21:40:25 140410333218688 [Note] InnoDB: Starting shutdown... … 2017-09-06 21:40:25 140410333218688 [Note] /mariadb/10.2/build/sql/mysqld: ready for connections. Version: '10.2.9-MariaDB-debug-log' socket: '/mariadb/10.2/build/mysql-test/var/tmp/mysqld.1.sock' port: 16000 Source distribution Why was nothing recovered from the doublewrite buffer? InnoDB in MariaDB 10.2 applies doublewrite buffer right before starting to read data pages for which there is redo log to apply, by calling buf_dblwr_process() in recv_init_crash_recovery_spaces(). In 10.1, I tried a different patch, and this use case seems to work, for all page sizes, both XtraDB and InnoDB. diff --git a/mysql-test/suite/innodb/t/doublewrite.test b/mysql-test/suite/innodb/t/doublewrite.test index aba3d6ecff5..890ee4e580c 100644 --- a/mysql-test/suite/innodb/t/doublewrite.test +++ b/mysql-test/suite/innodb/t/doublewrite.test @@ -31,7 +31,12 @@ show variables like 'innodb_doublewrite'; show variables like 'innodb_fil_make_page_dirty_debug'; show variables like 'innodb_saved_page_number_debug'; -create table t1 (f1 int primary key, f2 blob) engine=innodb; +--disable_warnings +SET GLOBAL innodb_file_format = `Barracuda`; +SET GLOBAL innodb_file_per_table = ON; +SET GLOBAL innodb_compression_algorithm = 1; +--enable_warnings +create table t1 (f1 int primary key, f2 blob) engine=innodb page_compressed=1; start transaction; insert into t1 values(1, repeat('#',12)); I still do not know if 10.1 can always tolerate a partially written copy of a page_compressed page in the doublewrite buffer. We need a test for that, already in 10.1. Also a test for encrypted pages in the doublewrite buffer would be highly useful.
            marko Marko Mäkelä made changes -

            I think that this particular issue should be used for only tracking the originally reported problem: inability to decompress (or decrypt) a page during the redo log apply phase of InnoDB crash recovery

            With the latest revision of 10.2 I am getting lots of these in crash recovery tests, I assume it's still the same problem, in the new representation:

            10.2 3c45aa5895

            2017-09-06 21:10:43 139988917028736 [ERROR] InnoDB: Corruption: Page is marked as compressed space: 39 name: test/t034 but uncompress failed with error: -3 size: 194 len: 16384 compression method: ZLIB.
            ...
            InnoDB: End of page dump
            mysqld: /home/travis/src/storage/innobase/fil/fil0pagecompress.cc:654: void fil_decompress_page(byte*, byte*, ulong, ulint*, bool): Assertion `0' failed.
            170906 21:10:43 [ERROR] mysqld got signal 6 ;
            ...
            #7  0x00007f51b381bca2 in __GI___assert_fail (assertion=0x55f0e001d3ac "0", file=0x55f0e001d1c0 "/home/travis/src/storage/innobase/fil/fil0pagecompress.cc", line=654, function=0x55f0e001d8e0 <fil_decompress_page(unsigned char*, unsigned char*, unsigned long, unsigned long*, bool)::__PRETTY_FUNCTION__> "void fil_decompress_page(byte*, byte*, ulong, ulint*, bool)") at assert.c:101
            #8  0x000055f0dfb8238b in fil_decompress_page (page_buf=0x0, buf=0x55f0e1d18000 "Þ­\276", <incomplete sequence \357>, len=16384, write_size=0x0, return_error=true) at /home/travis/src/storage/innobase/fil/fil0pagecompress.cc:654
            #9  0x000055f0dfaf907a in buf_dblwr_process () at /home/travis/src/storage/innobase/buf/buf0dblwr.cc:616
            #10 0x000055f0df916d5e in recv_init_crash_recovery_spaces () at /home/travis/src/storage/innobase/log/log0recv.cc:3089
            #11 0x000055f0df917704 in recv_recovery_from_checkpoint_start (flush_lsn=1656343) at /home/travis/src/storage/innobase/log/log0recv.cc:3273
            #12 0x000055f0dfa2c89d in innobase_start_or_create_for_mysql () at /home/travis/src/storage/innobase/srv/srv0start.cc:2222
            #13 0x000055f0df86eca7 in innobase_init (p=0x55f0e14db640) at /home/travis/src/storage/innobase/handler/ha_innodb.cc:4436
            #14 0x000055f0df5ac3f3 in ha_initialize_handlerton (plugin=0x55f0e14ac190) at /home/travis/src/sql/handler.cc:520
            #15 0x000055f0df34f089 in plugin_initialize (tmp_root=0x7ffed7009850, plugin=0x55f0e14ac190, argc=0x55f0e08b94f0 <remaining_argc>, argv=0x55f0e1457578, options_only=false) at /home/travis/src/sql/sql_plugin.cc:1413
            #16 0x000055f0df34fcd2 in plugin_init (argc=0x55f0e08b94f0 <remaining_argc>, argv=0x55f0e1457578, flags=2) at /home/travis/src/sql/sql_plugin.cc:1695
            #17 0x000055f0df25b98c in init_server_components () at /home/travis/src/sql/mysqld.cc:5258
            #18 0x000055f0df25ca2f in mysqld_main (argc=32, argv=0x55f0e1457578) at /home/travis/src/sql/mysqld.cc:5848
            #19 0x000055f0df251875 in main (argc=32, argv=0x7ffed700a608) at /home/travis/src/sql/main.cc:25
            

            elenst Elena Stepanova added a comment - I think that this particular issue should be used for only tracking the originally reported problem: inability to decompress (or decrypt) a page during the redo log apply phase of InnoDB crash recovery With the latest revision of 10.2 I am getting lots of these in crash recovery tests, I assume it's still the same problem, in the new representation: 10.2 3c45aa5895 2017-09-06 21:10:43 139988917028736 [ERROR] InnoDB: Corruption: Page is marked as compressed space: 39 name: test/t034 but uncompress failed with error: -3 size: 194 len: 16384 compression method: ZLIB. ... InnoDB: End of page dump mysqld: /home/travis/src/storage/innobase/fil/fil0pagecompress.cc:654: void fil_decompress_page(byte*, byte*, ulong, ulint*, bool): Assertion `0' failed. 170906 21:10:43 [ERROR] mysqld got signal 6 ; ... #7 0x00007f51b381bca2 in __GI___assert_fail (assertion=0x55f0e001d3ac "0", file=0x55f0e001d1c0 "/home/travis/src/storage/innobase/fil/fil0pagecompress.cc", line=654, function=0x55f0e001d8e0 <fil_decompress_page(unsigned char*, unsigned char*, unsigned long, unsigned long*, bool)::__PRETTY_FUNCTION__> "void fil_decompress_page(byte*, byte*, ulong, ulint*, bool)") at assert.c:101 #8 0x000055f0dfb8238b in fil_decompress_page (page_buf=0x0, buf=0x55f0e1d18000 "Þ­\276", <incomplete sequence \357>, len=16384, write_size=0x0, return_error=true) at /home/travis/src/storage/innobase/fil/fil0pagecompress.cc:654 #9 0x000055f0dfaf907a in buf_dblwr_process () at /home/travis/src/storage/innobase/buf/buf0dblwr.cc:616 #10 0x000055f0df916d5e in recv_init_crash_recovery_spaces () at /home/travis/src/storage/innobase/log/log0recv.cc:3089 #11 0x000055f0df917704 in recv_recovery_from_checkpoint_start (flush_lsn=1656343) at /home/travis/src/storage/innobase/log/log0recv.cc:3273 #12 0x000055f0dfa2c89d in innobase_start_or_create_for_mysql () at /home/travis/src/storage/innobase/srv/srv0start.cc:2222 #13 0x000055f0df86eca7 in innobase_init (p=0x55f0e14db640) at /home/travis/src/storage/innobase/handler/ha_innodb.cc:4436 #14 0x000055f0df5ac3f3 in ha_initialize_handlerton (plugin=0x55f0e14ac190) at /home/travis/src/sql/handler.cc:520 #15 0x000055f0df34f089 in plugin_initialize (tmp_root=0x7ffed7009850, plugin=0x55f0e14ac190, argc=0x55f0e08b94f0 <remaining_argc>, argv=0x55f0e1457578, options_only=false) at /home/travis/src/sql/sql_plugin.cc:1413 #16 0x000055f0df34fcd2 in plugin_init (argc=0x55f0e08b94f0 <remaining_argc>, argv=0x55f0e1457578, flags=2) at /home/travis/src/sql/sql_plugin.cc:1695 #17 0x000055f0df25b98c in init_server_components () at /home/travis/src/sql/mysqld.cc:5258 #18 0x000055f0df25ca2f in mysqld_main (argc=32, argv=0x55f0e1457578) at /home/travis/src/sql/mysqld.cc:5848 #19 0x000055f0df251875 in main (argc=32, argv=0x7ffed700a608) at /home/travis/src/sql/main.cc:25
            jplindst Jan Lindström (Inactive) made changes -
            Status Open [ 1 ] In Progress [ 3 ]
            jplindst Jan Lindström (Inactive) made changes -
            Affects Version/s 10.1 [ 16100 ]
            jplindst Jan Lindström (Inactive) made changes -
            Fix Version/s 10.1 [ 16100 ]
            jplindst Jan Lindström (Inactive) made changes -
            Component/s Storage Engine - XtraDB [ 10135 ]
            serg Sergei Golubchik made changes -
            Sprint 10.2.12 [ 216 ]
            jplindst Jan Lindström (Inactive) added a comment - https://github.com/MariaDB/server/commit/6b87039a7e4105c2552bb971c6d756ad5838cd18
            jplindst Jan Lindström (Inactive) made changes -
            Assignee Jan Lindström [ jplindst ] Marko Mäkelä [ marko ]
            Status In Progress [ 3 ] In Review [ 10002 ]

            I posted some review comments. I think that a full review of a revised fix is needed.

            I think that the tests need to be cleaned up. Also, the upgrade considerations must be prominently documented in the commit message, because this is changing the compressed page format.

            I would suppose that for the doublewrite buffer, we’d from now on require a post-compression checksum to match. This was not explicitly mentioned in the commit message.

            marko Marko Mäkelä added a comment - I posted some review comments. I think that a full review of a revised fix is needed. I think that the tests need to be cleaned up. Also, the upgrade considerations must be prominently documented in the commit message, because this is changing the compressed page format. I would suppose that for the doublewrite buffer, we’d from now on require a post-compression checksum to match. This was not explicitly mentioned in the commit message.
            marko Marko Mäkelä made changes -
            Assignee Marko Mäkelä [ marko ] Jan Lindström [ jplindst ]
            Status In Review [ 10002 ] Stalled [ 10000 ]
            jplindst Jan Lindström (Inactive) made changes -
            Status Stalled [ 10000 ] In Progress [ 3 ]
            jplindst Jan Lindström (Inactive) added a comment - https://github.com/MariaDB/server/commit/5140257a0abd79de1e6f36cece5cdb203426653b
            jplindst Jan Lindström (Inactive) made changes -
            Assignee Jan Lindström [ jplindst ] Marko Mäkelä [ marko ]
            Status In Progress [ 3 ] In Review [ 10002 ]
            marko Marko Mäkelä added a comment - - edited

            I think that we need a regression test with a stored compressed page image, similar to the test innodb.log_corruption.

            Please show test results for testing file compatibility between MariaDB 10.1 and 10.2 with this patch applied. The test must include a big-endian system. I do not want to weaken the checksum by having to add calls to ut_crc32_legacy_big_endian().

            Please also test and report the following (these tests cannot be pushed to mysql-test):

            1. Downgrade from the patched 10.1 to unpatched 10.1
            2. Downgrade from the patched 10.2 to unpatched 10.2
            3. Patched innochecksum invocation with files from unpatched MariaDB 10.1
            4. Patched innochecksum invocation with files from unpatched MariaDB 10.2
            5. Unpatched innochecksum invocation with files from patched MariaDB 10.1
            6. Unpatched innochecksum invocation with files from patched MariaDB 10.2
            marko Marko Mäkelä added a comment - - edited I think that we need a regression test with a stored compressed page image, similar to the test innodb.log_corruption. Please show test results for testing file compatibility between MariaDB 10.1 and 10.2 with this patch applied. The test must include a big-endian system. I do not want to weaken the checksum by having to add calls to ut_crc32_legacy_big_endian() . Please also test and report the following (these tests cannot be pushed to mysql-test ): Downgrade from the patched 10.1 to unpatched 10.1 Downgrade from the patched 10.2 to unpatched 10.2 Patched innochecksum invocation with files from unpatched MariaDB 10.1 Patched innochecksum invocation with files from unpatched MariaDB 10.2 Unpatched innochecksum invocation with files from patched MariaDB 10.1 Unpatched innochecksum invocation with files from patched MariaDB 10.2
            marko Marko Mäkelä made changes -
            Assignee Marko Mäkelä [ marko ] Jan Lindström [ jplindst ]
            Status In Review [ 10002 ] Stalled [ 10000 ]
            jplindst Jan Lindström (Inactive) made changes -
            Status Stalled [ 10000 ] In Progress [ 3 ]

            Branches

            Import

            • 10.2: suite/encryption/t/innodb-import-102.test test files from both big_endian and little_endian machines using import : PASS
            • 10.2: suite/encryption/innodb-import-101.test test files from both big_endian and little_endian machines to import files from 10.1: FAIL : MDEV-15049: Importing InnoDB table from 10.1 to 10.2 causes Schema mismatch (Expected FSP_SPACE_FLAGS=0x21, .ibd file contains 0x0. Not related to encryption or these changes.
            • 10.1: suite/encryption/innodb-import-101.test test files from both big_endian and little_endian machines using import: PASS

            Innochecksum

            • unpatched 10.1 innochecksum to files created with patched 10.1: PASS
            • patched 10.1 innochecksum to files created with unpatched 10.1 PASS
            • unpatched 10.2 innochecksum to files created with patched 10.2: PASS
            • patched 10.2 innochecksum to files created with unpatched 10.2: PASS

            File compatibility

            • Manually tested file compatibility between patched 10.2 big_endian db to patched 10.2 little_endian machine: PASS
            • Manually tested file compatibility between patched 10.2 little_endian db to patched 10.2 big_endian machine: PASS
            • Manually tested file compatibility between patched 10.1 little_endian db to patched 10.1 big_endian machine: FAIL: MDEV-15032: Encrypted database created on big endian machine cannot be used on little endian machine, not related to these changes
            • Manually tested file compatibility between patched 10.1 big_endian db to patched 10.1 little_endian machine: FAIL (see above)
            • Manually tested file compatibility between unpatched 10.1 big_endian db to unpatched 10.1 little_endian machine: FAIL (see above)

            Downgrades:

            • Patched 10.2 -> Patched 10.1: PASS
            • Patched 10.1 -> Unpatched 10.1: Crash (expected)
              • 2018-01-19 12:37:10 7f80acd20b00 InnoDB: Assertion failure in thread 1401906319
                87968 in file fil0pagecompress.cc line 532
              • As in fil/fil0pagecompress.cc line 517 we have (return_error == false many cases)

                	/* Before actual decompress, make sure that page type is correct */
                 
                	if (mach_read_from_4(buf+FIL_PAGE_SPACE_OR_CHKSUM) != BUF_NO_CHECKSUM_MAGIC ||
                		(ptype != FIL_PAGE_PAGE_COMPRESSED &&
                		 ptype != FIL_PAGE_PAGE_COMPRESSED_ENCRYPTED)) {
                		ib_logf(IB_LOG_LEVEL_ERROR,
                			"Corruption: We try to uncompress corrupted page"
                			" CRC " ULINTPF " type " ULINTPF " len " ULINTPF ".",
                			mach_read_from_4(buf+FIL_PAGE_SPACE_OR_CHKSUM),
                			mach_read_from_2(buf+FIL_PAGE_TYPE), len);
                 
                		fflush(stderr);
                		if (return_error) {
                			goto error_return;
                		}
                		ut_error;
                	}
                

            • Patched 10.2 -> Unpatched 10.1: Crash (expected)
              • 2018-01-19 12:40:31 7fabde7cdb00 InnoDB: Assertion failure in thread 1403761488
                59648 in file fil0pagecompress.cc line 532
            • Patched 10.2 -> Unpatched 10.2: Crash (expected)
              • 2018-01-19 12:15:07 0x7fb94f7fe700 InnoDB: Assertion failure in file /home/jan/
                mysql/10.2-bug/storage/innobase/fil/fil0pagecompress.cc line 469
              • As 10.2 has similar code as 10.1 in above

            Upgrades:

            • Patched 10.1 -> Patched 10.2: PASS
            • UnPatched 10.1 -> Patched 10.1: PASS
            • Unpatched 10.1 -> Patched 10.2: PASS
            • Unpatched 10.2 -> Patched 10.2: PASS
            jplindst Jan Lindström (Inactive) added a comment - - edited Branches Patched 10.1: bb-10.1- MDEV-13103 : https://github.com/MariaDB/server/commit/fe03d35b367ac047b5cafc50f0b98624658c4aec Patched 10.2: bb-10.2- MDEV-13103 : https://github.com/MariaDB/server/commit/c905eac1e79ed6304d68fb894c689ac4d27a6f60 Import 10.2: suite/encryption/t/innodb-import-102.test test files from both big_endian and little_endian machines using import : PASS 10.2: suite/encryption/innodb-import-101.test test files from both big_endian and little_endian machines to import files from 10.1: FAIL : MDEV-15049 : Importing InnoDB table from 10.1 to 10.2 causes Schema mismatch (Expected FSP_SPACE_FLAGS=0x21, .ibd file contains 0x0. Not related to encryption or these changes. 10.1: suite/encryption/innodb-import-101.test test files from both big_endian and little_endian machines using import: PASS Innochecksum unpatched 10.1 innochecksum to files created with patched 10.1: PASS patched 10.1 innochecksum to files created with unpatched 10.1 PASS unpatched 10.2 innochecksum to files created with patched 10.2: PASS patched 10.2 innochecksum to files created with unpatched 10.2: PASS File compatibility Manually tested file compatibility between patched 10.2 big_endian db to patched 10.2 little_endian machine: PASS Manually tested file compatibility between patched 10.2 little_endian db to patched 10.2 big_endian machine: PASS Manually tested file compatibility between patched 10.1 little_endian db to patched 10.1 big_endian machine: FAIL: MDEV-15032 : Encrypted database created on big endian machine cannot be used on little endian machine, not related to these changes Manually tested file compatibility between patched 10.1 big_endian db to patched 10.1 little_endian machine: FAIL (see above) Manually tested file compatibility between unpatched 10.1 big_endian db to unpatched 10.1 little_endian machine: FAIL (see above) Downgrades: Patched 10.2 -> Patched 10.1: PASS Patched 10.1 -> Unpatched 10.1: Crash (expected) 2018-01-19 12:37:10 7f80acd20b00 InnoDB: Assertion failure in thread 1401906319 87968 in file fil0pagecompress.cc line 532 As in fil/fil0pagecompress.cc line 517 we have (return_error == false many cases) /* Before actual decompress, make sure that page type is correct */   if (mach_read_from_4(buf+FIL_PAGE_SPACE_OR_CHKSUM) != BUF_NO_CHECKSUM_MAGIC || (ptype != FIL_PAGE_PAGE_COMPRESSED && ptype != FIL_PAGE_PAGE_COMPRESSED_ENCRYPTED)) { ib_logf(IB_LOG_LEVEL_ERROR, "Corruption: We try to uncompress corrupted page" " CRC " ULINTPF " type " ULINTPF " len " ULINTPF ".", mach_read_from_4(buf+FIL_PAGE_SPACE_OR_CHKSUM), mach_read_from_2(buf+FIL_PAGE_TYPE), len);   fflush(stderr); if (return_error) { goto error_return; } ut_error; } Patched 10.2 -> Unpatched 10.1: Crash (expected) 2018-01-19 12:40:31 7fabde7cdb00 InnoDB: Assertion failure in thread 1403761488 59648 in file fil0pagecompress.cc line 532 Patched 10.2 -> Unpatched 10.2: Crash (expected) 2018-01-19 12:15:07 0x7fb94f7fe700 InnoDB: Assertion failure in file /home/jan/ mysql/10.2-bug/storage/innobase/fil/fil0pagecompress.cc line 469 As 10.2 has similar code as 10.1 in above Upgrades: Patched 10.1 -> Patched 10.2: PASS UnPatched 10.1 -> Patched 10.1: PASS Unpatched 10.1 -> Patched 10.2: PASS Unpatched 10.2 -> Patched 10.2: PASS
            jplindst Jan Lindström (Inactive) made changes -
            Attachment 15187-mysqld-migrations.err [ 44912 ]
            jplindst Jan Lindström (Inactive) made changes -
            Attachment 15187-mysqld-migrations.err [ 44912 ]
            jplindst Jan Lindström (Inactive) made changes -
            Attachment jan.opt [ 44913 ]
            Attachment jan.test [ 44914 ]

            Can you please document what exactly causes the crash on downgrade from the patched 10.1 or 10.2 to the unpatched 10.1 or 10.2? Is it affecting debug builds only?

            marko Marko Mäkelä added a comment - Can you please document what exactly causes the crash on downgrade from the patched 10.1 or 10.2 to the unpatched 10.1 or 10.2? Is it affecting debug builds only?
            serg Sergei Golubchik made changes -
            Sprint 10.2.12 [ 216 ] 10.2.12, 10.1.31 [ 216, 225 ]
            jplindst Jan Lindström (Inactive) made changes -
            Assignee Jan Lindström [ jplindst ] Marko Mäkelä [ marko ]
            Status In Progress [ 3 ] In Review [ 10002 ]
            serg Sergei Golubchik made changes -

            @marko the exact reason is documented in above i.e. older versions expect that checksum is exactly BUF_NO_CHECKSUM_MAGIC and after patch we write there something else.

            jplindst Jan Lindström (Inactive) added a comment - @marko the exact reason is documented in above i.e. older versions expect that checksum is exactly BUF_NO_CHECKSUM_MAGIC and after patch we write there something else.
            jplindst Jan Lindström (Inactive) added a comment - marko Updated version on top of MDEV-15032 https://github.com/MariaDB/server/tree/bb-10.1-MDEV-13103-MDEV-15032
            jplindst Jan Lindström (Inactive) made changes -
            Priority Major [ 3 ] Blocker [ 1 ]
            jplindst Jan Lindström (Inactive) made changes -
            Fix Version/s 10.3 [ 22126 ]
            serg Sergei Golubchik made changes -
            Priority Blocker [ 1 ] Critical [ 2 ]
            marko Marko Mäkelä made changes -
            marko Marko Mäkelä made changes -
            Sprint 10.2.12, 10.1.31 [ 216, 225 ] 10.2.12, 10.1.31, 10.3.6 [ 216, 225, 237 ]

            I don’t think that any change of the file format is needed. Instead, we should fix the function fil_decompress_page() so that it will always return an error, and adjust its callers. Here are some of my findings so far:

            1. The LZ4 and LZO compression libraries provide unsafe ‘fast’ versions of a decompression call. MariaDB was invoking these, instead of using the ‘safe’ versions and validating the parameters.
            2. Some code appears to support duplicated compression (page_compressed and ROW_FORMAT=COMPRESSED), even though this combination is rejected by ha_innobase::check_table_options() ever since the introduction of the page_compressed attribute in MariaDB Server 10.1.0, for both InnoDB and XtraDB. That is, the len parameter of fil_decompress_page() and fil_compress_page() should be removed, and srv_page_size (innodb_page_size) be used instead.
            marko Marko Mäkelä added a comment - I don’t think that any change of the file format is needed. Instead, we should fix the function fil_decompress_page() so that it will always return an error, and adjust its callers. Here are some of my findings so far: The LZ4 and LZO compression libraries provide unsafe ‘fast’ versions of a decompression call. MariaDB was invoking these, instead of using the ‘safe’ versions and validating the parameters. Some code appears to support duplicated compression ( page_compressed and ROW_FORMAT=COMPRESSED ), even though this combination is rejected by ha_innobase::check_table_options() ever since the introduction of the page_compressed attribute in MariaDB Server 10.1.0, for both InnoDB and XtraDB. That is, the len parameter of fil_decompress_page() and fil_compress_page() should be removed, and srv_page_size ( innodb_page_size ) be used instead.

            I am planning to implement the changes to fil_page_compress() and fil_page_decompress() myself.

            marko Marko Mäkelä added a comment - I am planning to implement the changes to fil_page_compress()  and fil_page_decompress() myself.
            marko Marko Mäkelä made changes -
            Status In Review [ 10002 ] Stalled [ 10000 ]
            marko Marko Mäkelä added a comment - - edited

            One more observation: The constant FIL_PAGE_COMPRESSED (13), which was introduced in MDEV-6354 and later renamed to FIL_PAGE_TYPE_COMPRESSED, was never written to a buffer page. Checks for this constant (which are present in MariaDB Server 10.1 only, not in 10.2) were basically dead code, or at most allowing some corruption go undetected.

            marko Marko Mäkelä added a comment - - edited One more observation: The constant FIL_PAGE_COMPRESSED (13), which was introduced in MDEV-6354 and later renamed to FIL_PAGE_TYPE_COMPRESSED , was never written to a buffer page. Checks for this constant (which are present in MariaDB Server 10.1 only, not in 10.2) were basically dead code, or at most allowing some corruption go undetected.
            marko Marko Mäkelä made changes -
            Status Stalled [ 10000 ] In Progress [ 3 ]
            marko Marko Mäkelä made changes -
            Summary InnoDB crash recovery fails to decompress a page in buf_dblwr_process() InnoDB: Deal with page_compressed page corruption

            There are multiple places in the code where InnoDB fails to deal with corrupted page_compressed pages, not only the doublewrite buffer and IMPORT TABLESPACE, but also after decrypting. In addition to this, the decompression was invoking "fast" instead of "safe" variants of LZ4 and LZO.

            I have an almost working fix that does not change the compressed page format. A few encryption tests fail.

            marko Marko Mäkelä added a comment - There are multiple places in the code where InnoDB fails to deal with corrupted page_compressed  pages, not only the doublewrite buffer and IMPORT TABLESPACE , but also after decrypting. In addition to this, the decompression was invoking "fast" instead of "safe" variants of LZ4 and LZO. I have an almost working fix that does not change the compressed page format. A few encryption tests fail.
            marko Marko Mäkelä added a comment - - edited

            I cleaned up the compression and decompression code, but did not change the page format.
            I hope that elenst’s upgrade tests will turn out fine.
            bb-10.1-marko
            bb-10.2-marko

            marko Marko Mäkelä added a comment - - edited I cleaned up the compression and decompression code, but did not change the page format. I hope that elenst ’s upgrade tests will turn out fine. bb-10.1-marko bb-10.2-marko
            marko Marko Mäkelä made changes -
            Assignee Marko Mäkelä [ marko ] Jan Lindström [ jplindst ]
            Status In Progress [ 3 ] In Review [ 10002 ]

            ok to push after addressing implementation comments.

            jplindst Jan Lindström (Inactive) added a comment - ok to push after addressing implementation comments.
            jplindst Jan Lindström (Inactive) made changes -
            Assignee Jan Lindström [ jplindst ] Marko Mäkelä [ marko ]
            Status In Review [ 10002 ] Stalled [ 10000 ]

            This work includes a user-visible change: server error log output related to compression failures will be removed. The counter compress_pages_page_compression_error can be used to monitor compression failures, and ls -ls or similar commands may be used to check the logical and physical sizes of the .ibd files.

            This fix will replace the unsafe decompression variants of LZO and LZ4 with safe ones. I wrote a microbenchmark to check how much this actually costs for LZO:

            #include <stdio.h>
            #include <time.h>
            #include <assert.h>
            #include <lzo/lzo1x.h>
             
            static long nsdiff(const struct timespec*a, const struct timespec*b)
            {
              return 1000000000L * (a->tv_sec - b->tv_sec) + (a->tv_nsec - b->tv_nsec);
            }
             
            int main (int argc, char**argv)
            {
              char buf[16384],zbuf[sizeof buf + LZO1X_1_15_MEM_COMPRESS];
              lzo_uint i, len, zlen;
              const lzo_uint n = 10000000;
              struct timespec t[3];
              for (i=0; i < sizeof buf; i++) buf[i] = i;
              len = sizeof zbuf;
              assert(LZO_E_OK == lzo1x_1_15_compress(buf, sizeof buf, zbuf, &len,
            					 zbuf + sizeof buf));
              assert(len < sizeof buf);
              zlen = len;
              clock_gettime(CLOCK_THREAD_CPUTIME_ID, &t[0]);
              for (i=n; i--; ) {
                len = sizeof buf;
                assert(LZO_E_OK == lzo1x_decompress_safe(zbuf, zlen, buf, &len, NULL));
                assert(len == sizeof buf);
              }
              clock_gettime(CLOCK_THREAD_CPUTIME_ID, &t[1]);
              for (i=n; i--; ) {
                len = sizeof buf;
                assert(LZO_E_OK == lzo1x_decompress(zbuf, zlen, buf, &len, NULL));
                assert(len == sizeof buf);
              }
              clock_gettime(CLOCK_THREAD_CPUTIME_ID, &t[2]);
              printf("safe: %luns; unsafe: %luns\n",
            	 nsdiff(&t[1], &t[0]), nsdiff(&t[2], &t[1]));
              return 0;
            }
            

            On Intel Xeon E5-2630 v4, the difference is very small for LZO, and I would expect it to be similar for LZ4:

            safe: 9570081571ns; unsafe: 9555789202ns

            That is, the safe decompressor is 0.15% slower than the one that lacks input validation.
            It is of course possible that this microbenchmark was ruined by some successful branch prediction caching, but I would not be worried about the speed. With n=1 the results vary a lot, but the typical difference is not really that much:

            safe: 6166ns; unsafe: 4641ns

            The worst case appears to be about 1.5µs per page. I would not care about it.

            marko Marko Mäkelä added a comment - This work includes a user-visible change: server error log output related to compression failures will be removed. The counter compress_pages_page_compression_error can be used to monitor compression failures, and ls -ls or similar commands may be used to check the logical and physical sizes of the .ibd  files. This fix will replace the unsafe decompression variants of LZO and LZ4 with safe ones. I wrote a microbenchmark to check how much this actually costs for LZO: #include <stdio.h> #include <time.h> #include <assert.h> #include <lzo/lzo1x.h>   static long nsdiff( const struct timespec*a, const struct timespec*b) { return 1000000000L * (a->tv_sec - b->tv_sec) + (a->tv_nsec - b->tv_nsec); }   int main ( int argc, char **argv) { char buf[16384],zbuf[ sizeof buf + LZO1X_1_15_MEM_COMPRESS]; lzo_uint i, len, zlen; const lzo_uint n = 10000000; struct timespec t[3]; for (i=0; i < sizeof buf; i++) buf[i] = i; len = sizeof zbuf; assert (LZO_E_OK == lzo1x_1_15_compress(buf, sizeof buf, zbuf, &len, zbuf + sizeof buf)); assert (len < sizeof buf); zlen = len; clock_gettime(CLOCK_THREAD_CPUTIME_ID, &t[0]); for (i=n; i--; ) { len = sizeof buf; assert (LZO_E_OK == lzo1x_decompress_safe(zbuf, zlen, buf, &len, NULL)); assert (len == sizeof buf); } clock_gettime(CLOCK_THREAD_CPUTIME_ID, &t[1]); for (i=n; i--; ) { len = sizeof buf; assert (LZO_E_OK == lzo1x_decompress(zbuf, zlen, buf, &len, NULL)); assert (len == sizeof buf); } clock_gettime(CLOCK_THREAD_CPUTIME_ID, &t[2]); printf ( "safe: %luns; unsafe: %luns\n" , nsdiff(&t[1], &t[0]), nsdiff(&t[2], &t[1])); return 0; } On Intel Xeon E5-2630 v4, the difference is very small for LZO, and I would expect it to be similar for LZ4: safe: 9570081571ns; unsafe: 9555789202ns That is, the safe decompressor is 0.15% slower than the one that lacks input validation. It is of course possible that this microbenchmark was ruined by some successful branch prediction caching, but I would not be worried about the speed. With n=1 the results vary a lot, but the typical difference is not really that much: safe: 6166ns; unsafe: 4641ns The worst case appears to be about 1.5µs per page. I would not care about it.

            There has been some doubt whether MariaDB Server 10.1 is actually affected by this bug. I tested with a modified test:

            diff --git a/mysql-test/suite/innodb/t/doublewrite.test b/mysql-test/suite/innodb/t/doublewrite.test
            index aba3d6ecff5..277f72f50e6 100644
            --- a/mysql-test/suite/innodb/t/doublewrite.test
            +++ b/mysql-test/suite/innodb/t/doublewrite.test
            @@ -31,7 +31,9 @@ show variables like 'innodb_doublewrite';
             show variables like 'innodb_fil_make_page_dirty_debug';
             show variables like 'innodb_saved_page_number_debug';
             
            -create table t1 (f1 int primary key, f2 blob) engine=innodb;
            +set global innodb_file_format=barracuda;
            +create table t1 (f1 int primary key, f2 blob) engine=innodb
            +page_compressed=1 page_compression_level=2;
             
             start transaction;
             insert into t1 values(1, repeat('#',12));
            

            Indeed, this test will not fail in MariaDB 10.1 even before this fix, but it would in 10.2 (even with the fix, using 32k and 64k page sizes; the logic to guess the page size does not take page compression into account).

            Maybe the InnoDB I/O layer is different enough between 10.1 and 10.2, making the doublewrite buffer appear to be immune to this? In both versions, buf_flush_write_block_low() appears to be compressing the page before writing to the doublewrite buffer or to the data file.

            marko Marko Mäkelä added a comment - There has been some doubt whether MariaDB Server 10.1 is actually affected by this bug. I tested with a modified test: diff --git a/mysql-test/suite/innodb/t/doublewrite.test b/mysql-test/suite/innodb/t/doublewrite.test index aba3d6ecff5..277f72f50e6 100644 --- a/mysql-test/suite/innodb/t/doublewrite.test +++ b/mysql-test/suite/innodb/t/doublewrite.test @@ -31,7 +31,9 @@ show variables like 'innodb_doublewrite'; show variables like 'innodb_fil_make_page_dirty_debug'; show variables like 'innodb_saved_page_number_debug'; -create table t1 (f1 int primary key, f2 blob) engine=innodb; +set global innodb_file_format=barracuda; +create table t1 (f1 int primary key, f2 blob) engine=innodb +page_compressed=1 page_compression_level=2; start transaction; insert into t1 values(1, repeat('#',12)); Indeed, this test will not fail in MariaDB 10.1 even before this fix, but it would in 10.2 (even with the fix, using 32k and 64k page sizes; the logic to guess the page size does not take page compression into account). Maybe the InnoDB I/O layer is different enough between 10.1 and 10.2, making the doublewrite buffer appear to be immune to this? In both versions, buf_flush_write_block_low()  appears to be compressing the page before writing to the doublewrite buffer or to the data file.
            marko Marko Mäkelä made changes -
            issue.field.resolutiondate 2018-06-14 11:46:00.0 2018-06-14 11:46:00.713
            marko Marko Mäkelä made changes -
            Fix Version/s 10.1.34 [ 23100 ]
            Fix Version/s 10.2.16 [ 23110 ]
            Fix Version/s 10.3.8 [ 23113 ]
            Fix Version/s 10.2 [ 14601 ]
            Fix Version/s 10.1 [ 16100 ]
            Fix Version/s 10.3 [ 22126 ]
            Resolution Fixed [ 1 ]
            Status Stalled [ 10000 ] Closed [ 6 ]
            jplindst Jan Lindström (Inactive) made changes -
            julien.fritsch Julien Fritsch made changes -
            marko Marko Mäkelä made changes -
            serg Sergei Golubchik made changes -
            Workflow MariaDB v3 [ 81262 ] MariaDB v4 [ 152338 ]

            People

              marko Marko Mäkelä
              elenst Elena Stepanova
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