This can serve to maria_chk to check that trids found in rows and keys
are not too big. Also used by Recovery when logs are lost.
Options --require-control-file, --datadir, --log-dir (yes, the dashes are
inconsistent but I imitated mysqld --datadir and --maria-log-dir) for
maria_chk.
Lock control file _before_ reading its content.


storage/maria/ha_maria.cc:
  new prototype
storage/maria/ma_check.c:
  A function to find the max trid in the system (consults transaction
  manager and control file), to check tables.
storage/maria/ma_checkpoint.c:
  new prototype
storage/maria/ma_control_file.c:
  Store max trid into control file, in a backward-compatible way
  (can still read old control files).
  Parameter to ma_control_file_open(), to not create the log if it's
  missing (maria_chk needs that).
  Lock control file _before_ reading its content.
  Fix for a segfault when reading an old control file (bzero() with a
  negative second argument)
storage/maria/ma_control_file.h:
  changes to the control file module's API
storage/maria/ma_init.c:
  When Maria shuts down cleanly, store max trid into control file.
storage/maria/ma_loghandler.c:
  new prototype
storage/maria/ma_recovery.c:
  During recovery, consult max trid stored in control file, in case it is
  bigger than what we found in log (case of logs manually removed by user).
storage/maria/ma_test1.c:
  new prototype
storage/maria/ma_test2.c:
  new prototype
storage/maria/maria_chk.c:
  New option --require-control-file (abort if control file not found),
  --datadir (path for control file (and for logs if --log-dir not specified)),
  --log-dir (path for logs).
  Try to open control file when maria_chk starts.
storage/maria/maria_read_log.c:
  new prototype
storage/maria/trnman.c:
  A new function to know max trid in transaction manager
storage/maria/trnman_public.h:
  New function
storage/maria/unittest/ma_control_file-t.c:
  new prototypes. Testing storing and retrieving the max trid to/from
  control file
storage/maria/unittest/ma_test_loghandler-t.c:
  new prototype
storage/maria/unittest/ma_test_loghandler_first_lsn-t.c:
  new prototype
storage/maria/unittest/ma_test_loghandler_max_lsn-t.c:
  new prototype
storage/maria/unittest/ma_test_loghandler_multigroup-t.c:
  new prototype
storage/maria/unittest/ma_test_loghandler_multithread-t.c:
  new prototype
storage/maria/unittest/ma_test_loghandler_noflush-t.c:
  new prototype
storage/maria/unittest/ma_test_loghandler_nologs-t.c:
  new prototype
storage/maria/unittest/ma_test_loghandler_pagecache-t.c:
  new prototype
storage/maria/unittest/ma_test_loghandler_purge-t.c:
  new prototype

mysys/my_handler.c:
  compiler warning

pointed data.
I ran gcc -Wcast-qual on storage/maria, this identified un-needed casts,
a couple of functions which said they had a const parameter though
they changed the pointed content! This is fixed here. Some suspicious
places receive a comment.
The original intention of running -Wcast-qual was to find what code
changes R-tree keys: I added const words, but hidden casts
like those of int2store (casts target to (uint16*)) removed const
checking; -Wcast-qual helped find those hidden casts.
Log handler does not change the content pointed by LEX_STRING::str it
receives, so we now use a struct which has a const inside, to emphasize
this and be able to pass "const uchar*" buffers to log handler
without fear of their content being changed by it.
One-line fix for a merge glitch (when merging from MyISAM).


include/m_string.h:
  As Maria's log handler uses LEX_STRING but never changes the content
  pointed by LEX_STRING::str, and assigns uchar* into this member most
  of the time, we introduce a new struct LEX_CUSTRING
  (C const U unsigned) for the log handler.
include/my_global.h:
  In macros which read pointed content: use const pointers so that
  gcc -Wcast-qual does not warn about casting a const pointer to non-const.
include/my_handler.h:
  In macros which read pointed content: use const pointers so that
  gcc -Wcast-qual does not warn about casting a const pointer to non-const.
  ha_find_null() does not change *a.
include/my_sys.h:
  insert_dynamic() does not change *element.
include/myisampack.h:
  In macros which read pointed content: use const pointers so that
  gcc -Wcast-qual does not warn about casting a const pointer to non-const.
mysys/array.c:
  insert_dynamic() does not change *element
mysys/my_handler.c:
  ha_find_null() does not change *a
storage/maria/ma_bitmap.c:
  Log handler receives const strings now
storage/maria/ma_blockrec.c:
  Log handler receives const strings now.
  _ma_apply_undo_row_delete/update() do change *header.
storage/maria/ma_blockrec.h:
  correct prototype
storage/maria/ma_check.c:
  Log handler receives const strings now. Un-needed casts
storage/maria/ma_checkpoint.c:
  Log handler receives const strings now
storage/maria/ma_checksum.c:
  unneeded cast
storage/maria/ma_commit.c:
  Log handler receives const strings now
storage/maria/ma_create.c:
  Log handler receives const strings now
storage/maria/ma_dbug.c:
  fixing warning of gcc -Wcast-qual
storage/maria/ma_delete.c:
  Log handler receives const strings now
storage/maria/ma_delete_all.c:
  Log handler receives const strings now
storage/maria/ma_delete_table.c:
  Log handler receives const strings now
storage/maria/ma_dynrec.c:
  fixing some warnings of gcc -Wcast-qual. Unneeded casts removed.
  Comment about function which lies.
storage/maria/ma_ft_parser.c:
  fix for warnings of gcc -Wcast-qual, removing unneeded casts
storage/maria/ma_ft_update.c:
  less casts, comment
storage/maria/ma_key.c:
  less casts, stay const (warnings of gcc -Wcast-qual)
storage/maria/ma_key_recover.c:
  Log handler receives const strings now
storage/maria/ma_loghandler.c:
  Log handler receives const strings now
storage/maria/ma_loghandler.h:
  Log handler receives const strings now
storage/maria/ma_loghandler_lsn.h:
  In macros which read pointed content: use const pointers so that
  gcc -Wcast-qual does not warn about casting a const pointer to non-const.
storage/maria/ma_page.c:
  Log handler receives const strings now; more const
storage/maria/ma_recovery.c:
  Log handler receives const strings now
storage/maria/ma_rename.c:
  Log handler receives const strings now
storage/maria/ma_rt_index.c:
  more const, to emphasize that functions don't change pointed content.
  best_key= NULL was forgotten during merge from MyISAM a few days ago,
  was causing a Valgrind warning
storage/maria/ma_rt_index.h:
  new proto
storage/maria/ma_rt_key.c:
  more const
storage/maria/ma_rt_key.h:
  new proto
storage/maria/ma_rt_mbr.c:
  more const for functions which deserve it
storage/maria/ma_rt_mbr.h:
  new prototype
storage/maria/ma_rt_split.c:
  make const what is not changed.
storage/maria/ma_search.c:
  un-needed casts, more const
storage/maria/ma_sp_key.c:
  more const
storage/maria/ma_unique.c:
  un-needed casts.
storage/maria/ma_write.c:
  Log handler receives const strings now
storage/maria/maria_def.h:
  some more const
storage/maria/unittest/ma_test_loghandler-t.c:
  Log handler receives const strings now
storage/maria/unittest/ma_test_loghandler_first_lsn-t.c:
  Log handler receives const strings now
storage/maria/unittest/ma_test_loghandler_max_lsn-t.c:
  Log handler receives const strings now
storage/maria/unittest/ma_test_loghandler_multigroup-t.c:
  Log handler receives const strings now
storage/maria/unittest/ma_test_loghandler_multithread-t.c:
  Log handler receives const strings now
storage/maria/unittest/ma_test_loghandler_noflush-t.c:
  Log handler receives const strings now
storage/maria/unittest/ma_test_loghandler_nologs-t.c:
  Log handler receives const strings now
storage/maria/unittest/ma_test_loghandler_pagecache-t.c:
  Log handler receives const strings now
storage/maria/unittest/ma_test_loghandler_purge-t.c:
  Log handler receives const strings now

Fix for BUG#35570 "CHECKSUM TABLE unreliable if LINESTRING field (same content / differen checksum)"
This will be back-ported to 5.x trees but the work for R-tree logging critically needs this patch in Maria now.


mysql-test/r/myisam.result:
  checksums are identical; without the code fix they were all different
mysql-test/t/myisam.test:
  test that same tables give same checksums
sql/sql_table.cc:
  Type GEOMETRY is implemented on top of type BLOB, so, just like for BLOB, its 'field' contains pointers
  which it does not make sense to include in the checksum; it rather has to be converted to a string and
  then we can compute the checksum.

Fixes bugs:
Bug#28837  MyISAM storage engine error (134) doing delete with self-join
Bug#31277  myisamchk --unpack corrupts table
Bug#4692   DISABLE/ENABLE KEYS waste a space
Bug#31305  myisam tables crash when they are near capacity


BitKeeper/etc/ignore:
  added unittest/tmp/*
mysql-test/r/maria.result:
  Moved missing tests from myisam.test to maria.test
mysql-test/t/maria.test:
  Moved missing tests from myisam.test to maria.test
storage/maria/ha_maria.cc:
  Merge of changes in MyISAM since December 16 -> April 1
  Fixes bug in self join (Bug#28837: MyISAM storage engine error (134) doing delete with self-join)
storage/maria/ha_maria.h:
  Merge of changes in MyISAM since December 16 -> April 1
storage/maria/ma_blockrec.c:
  Merge of changes in MyISAM since December 16 -> April 1
  Fixes bug in self join (Bug#28837: MyISAM storage engine error (134) doing delete with self-join)
  The problem is that we may be using a cached key page with old information. Versioning will fix this
storage/maria/ma_check.c:
  Merge of changes in MyISAM since December 16 -> April 1
  This fixes a problem with pack_reclength not beeing big enough (Bug #31277 myisamchk --unpack corrupts table)
  BUG#4692 - DISABLE/ENABLE KEYS waste a space
storage/maria/ma_delete.c:
  Indentation fixes
storage/maria/ma_dynrec.c:
  Merge of changes in MyISAM since December 16 -> April 1
  Fixes Bug#31305 myisam tables crash when they are near capacity.
  (This uses a simpler fix than in MyISAM by remembering the length of the current row)
storage/maria/ma_ft_boolean_search.c:
  Merge of all changes from myisam/ft_boolean_search.c (This file had not been kept up to date)
storage/maria/ma_open.c:
  Merge of changes in MyISAM since December 16 -> April 1
  Calculate default_rec_buff_size more exact to be sure it's always big enough
storage/maria/ma_packrec.c:
  Merge of changes in MyISAM since December 16 -> April 1
  Update default_rec_buff_size to be big enough to hold one packed row
  Related to Bug#31277 myisamchk --unpack corrupts table
storage/maria/ma_rnext_same.c:
  Indentation fixes
storage/maria/ma_rt_index.c:
  Merge of changes in MyISAM since December 16 -> April 1
storage/maria/ma_rt_mbr.c:
  Merge of changes in MyISAM since December 16 -> April 1
  (Added comment)
storage/maria/ma_search.c:
  Merge of changes in MyISAM since December 16 -> April 1
  (Added comment)
storage/maria/ma_sort.c:
  Merge of changes in MyISAM since December 16 -> April 1
storage/maria/ma_statrec.c:
  Indentation fixes
storage/maria/ma_test2.c:
  Indentation fixes
storage/maria/maria_chk.c:
  Indentation fixes
storage/maria/maria_pack.c:
  Merge of changes in MyISAM since December 16 -> April 1

absence of opened files.

bytes in unimportant, unused pieces of index pages) and test failure
because test requires Maria. Compiler warning.
About Valgrind error, two of the three bzero() added here are
needed to silence the error (the third is added for symmetry).


mysql-test/t/maria-gis-rtree.test:
  requires Maria
storage/maria/ma_loghandler.c:
  "uint64->uint16 possible loss of precision" on Windows
storage/maria/ma_rt_index.c:
  We bzero the entire new page, as is done in _ma_enlarge_root()
  for B-tree pages. This silences Valgrind warnings and allows
  better compression.
storage/maria/ma_rt_split.c:
  We bzero the entire new page, as is done in _ma_enlarge_root()
  for B-tree pages. This silences Valgrind warnings and allows
  better compression.

into  gbichot4.local:/home/mysql_src/mysql-maria-monty

A big test was written and is committed, which found 3 bugs in total:
- ALTER TABLE PAGE_CHECKSUM=0 sometimes had no effect
- ALTER TABLE ENGINE=MARIA sometimes changed page checksumming in
the table
- SHOW CREATE TABLE and 'maria_chk -dv' disagreed on the presence
of page checksumming.
They are all fixed here. Side-effect is that SHOW CREATE TABLE now
always prints a PAGE_CHECKSUM clause for Maria tables.


mysql-test/mysql-test-run.pl:
  allow calling maria_chk and maria_pack in tests
mysql-test/r/maria.result:
  PAGE_CHECKSUM=0 is now always printed
mysql-test/t/create.test:
  PAGE_CHECKSUM= is now always present in SHOW CREATE TABLE of Maria tables
mysql-test/t/disabled.def:
  better bug number
sql/sql_table.cc:
  If ALTER TABLE PAGE_CHECKSUM=#, it affects the engine's data (structure
  of data pages) so a full table rebuild is needed. We already did
  so for ROW_FORMAT=#, following same logic. This fixes disagreements
  between SHOW CREATE TABLE and 'maria_chk -dv' regarding the
  presence of page checksums after certain ALTER TABLE (as seen
  with the attached testcase).
storage/maria/ha_maria.cc:
  In ALTER TABLE PAGE_CHECKSUM=0, ha_maria::update_create_info() started
  with create_info->page_checksum=HA_CHOICE_NO and wrongly set it
  to the table's original setting, which is HA_CHOICE_YES if the table
  had page checksums, in which case the ALTER left page checksum
  in the table.
  The fix for this bug is: only if create_info->page_checksum is
  undefined (no clause in the ALTER TABLE, or we are in SHOW CREATE TABLE)
  we may set HA_CHOICE_YES.
  The second bug in this file was that the code left HA_CHOICE_UNDEF if
  the table didn't have page checksums originally, leading ALTER TABLE
  ENGINE=MARIA to change the table's page checksum to the value of
  maria_page_checksum.
  This is fixed by setting create_info->page_checksum to HA_CHOICE_NO
  if UNDEF and table does not have page checksum.
  The side-effect of this last fix, because ha_maria::update_create_info()
  is also called by SHOW CREATE TABLE, is that:
  SET GLOBAL maria_page_checksum=0;
  CREATE TABLE t(a INT) ENGINE=MARIA;
  SHOW CREATE TABLE t;
  which used to not show a PAGE_CHECKSUM= clause, now shows PAGE_CHECKSUM=0.
  I consider this side-effect good:
  - clearer for users: it eliminates the differences between the
  above and this:
  SET GLOBAL maria_page_checksum=0;
  CREATE TABLE t(a INT) ENGINE=MARIA PAGE_CHECKSUM=0;
  SHOW CREATE TABLE t;
  which already showed PAGE_CHECKSUM=0; difference which is not easy
  to explain.
  - if using mysqldump to copy from one server to another, it eliminates
  the dependency on the value of maria_page_checksum being the same on
  original server and new server.
mysql-test/r/maria-page-checksum.result:
  Result. If you undo the code fixes and run the test, the new result
  file will show bugs at:
  error lineno 56 : expected PAGE_CHECKSUM=1, got Page checksums are not used
  error lineno 73 : expected PAGE_CHECKSUM=0, got ) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1
  error lineno 110 : expected PAGE_CHECKSUM=1, got Page checksums are not used
  error lineno 164 : expected PAGE_CHECKSUM=1, got Page checksums are not used
  error lineno 181 : expected PAGE_CHECKSUM=0, got ) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1
  error lineno 218 : expected PAGE_CHECKSUM=1, got Page checksums are not used
  error lineno 253 : expected PAGE_CHECKSUM=0, got ) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1
  error lineno 307 : expected PAGE_CHECKSUM=0, got ) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1
  error lineno 361 : expected PAGE_CHECKSUM=0, got ) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1
  error lineno 415 : expected PAGE_CHECKSUM=0, got ) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1
  error lineno 488 : expected PAGE_CHECKSUM=1, got Page checksums are not used
  error lineno 505 : expected PAGE_CHECKSUM=0, got ) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1
  error lineno 542 : expected PAGE_CHECKSUM=1, got Page checksums are not used
  error lineno 577 : expected PAGE_CHECKSUM=0, got ) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1
  error lineno 631 : expected PAGE_CHECKSUM=0, got ) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1
  (lineno is line number in the result file)
mysql-test/t/maria-page-checksum.test:
  Test for the 3 bugs

into  desktop.sanja.is.com.ua:/home/bell/tmp/work-maria-bug35036

into  gbichot4.local:/home/mysql_src/mysql-maria-monty

when modifying R-tree indices we forgot to unpin pages (causing
flush at-end-of-statement to fail - because page is pinned - and thus
mark table corrupted) and also to unlock key_del (causing assertion
failure info->used_key_del==0 at maria_close()).


storage/maria/ma_rt_index.c:
  When modifying pages of R-tree indices we keep them pinned, and
  lock key_del, so we here make sure to unpin and unlock at the end
  of the modification. I checked all functions which add to info->pinned_pages
  or call _ma_lock_key_del(): the parent is always maria_rtree_insert()
  or maria_rtree_delete(), which thus do the unpin/unlock now.
mysql-test/r/maria-gis-rtree.result:
  new result, which is incorrect (filed as BUG#35351) but at least
  test does not crash anymore
mysql-test/t/maria-gis-rtree.test:
  test of Maria's GIS functionality (R-tree indices etc); copied from
  MyISAM's gis-rtree.test; used to crash without the bugfixes.

into  desktop.sanja.is.com.ua:/home/bell/mysql/bk/work-maria-bug35036


storage/maria/ma_loghandler.c:
  Auto merged

(BUG#35030 maria_pagecache_read* status
variables updated at wrong moment)


storage/maria/ma_pagecache.c:
  Fixed statistic calculation.

storage/maria/ma_locking.c:
  define 'share' only in block which needs it
storage/maria/unittest/ma_test_recovery.pl:
  more straightforward way to compute file's MD5

%llu replaces with %s/llstr() as in other MySQL code.


storage/maria/ma_loghandler.c:
  my_stat is not reliable under windows for determinating file
  length so it is replaced with my_seek.
  %llu replaces with %s/llstr() as in other MySQL code.

into  desktop.sanja.is.com.ua:/home/bell/mysql/bk/work-maria-bug34712

into  mysql.com:/home/my/mysql-maria

Problem was that page in bitmap was marked as full even if there was free places in page directory


mysql-test/r/maria.result:
  Test case for problem with head/tail page with 255 entries
  (Bug 35048 "maria table corruption reported when transactional=0)
mysql-test/t/maria.test:
  Test case for problem with head/tail page with 255 entries
  (Bug 35048 "maria table corruption reported when transactional=0)
storage/maria/ma_blockrec.c:
  Fix to ensure that bitmap is marked 'full' when the head/tail page directory is full
storage/maria/ma_check.c:
  Better check when directory for head/tail pages are marked full (The page directory can't hold a row tail + blob tails)

if nothing was added to the log
(BUG#34712 maria_read_log changes log
file content on several platforms though not needed)
Fixed callback call (now under loghandler lock).


storage/maria/ma_loghandler.c:
  Flag that signaling about "everythig-flushed" state of
  the log added, to avoid changing log on flush request
  if nothing was written but horizon placed on the page boarder.
  Fixed callback call (now under loghandler lock).

an internal procedure for it. Removed my_which()
as unneccessary.

into  desktop.sanja.is.com.ua:/home/bell/mysql/bk/work-maria-bug34161


storage/maria/ma_pagecache.c:
  Auto merged

into  desktop.sanja.is.com.ua:/home/bell/mysql/bk/work-maria-bug34634


storage/maria/ma_pagecache.c:
  Auto merged

the moment. (BUG#34634)
Fixed potential bug in pinning schema.


storage/maria/ma_pagecache.c:
  Fixed problem of deleting blocks which are being evicted at
  the moment.
  Fixed potential bug in pinning schema.

"Using maria-block-size != 8192 makes Maria crash or say "error 174""


storage/maria/ma_create.c:
  fixed excessive assertion

sql/mysqld.cc:
  option -# and --debug, and default_dbug_option, do not exist in non-debug builds

into  gbichot4.local:/home/mysql_src/mysql-maria-clean


storage/maria/ha_maria.cc:
  Auto merged
storage/maria/ma_pagecache.c:
  Auto merged

storage/maria/unittest/CMakeLists.txt:
  build unit test under Windows too
storage/maria/unittest/ma_pagecache_rwconsist.c:
  portability fix for Windows

Fixed crash when using other maria block size than 8192
Fixed bug that caused tables to be reported as crashed if maria_log_control was deleted


mysql-test/valgrind.supp:
  Suppress leaks on SuSE 10.3, x86 64 bit
sql/mysqld.cc:
  Don't give warning in case of timeout for pthread_cond_timedwait
  Fixed crashing bug when starting mysqld with --dbug
storage/maria/ha_maria.cc:
  Fixed crash when using other block size than 8192 (Crash happend later in bitmap page handling)
storage/maria/ma_locking.c:
  When we write a new uuid for a zerofilled file, also update the lsn's
storage/maria/ma_open.c:
  Don't update lsn on open. Wait until first time file is changed
  Fixed bug that caused tables to be reported as crashed if maria_log_control was deleted
strings/strmake.c:
  Fixed warnings for strings without end 0 when running under valgrind.

storage/maria/Makefile.am:
  copyright
storage/maria/ma_pagecache.c:
  copyright
storage/maria/ma_pagecache.h:
  copyright
storage/maria/ma_pagecaches.c:
  copyright
storage/maria/ma_pagecrc.c:
  copyright
storage/maria/unittest/Makefile.am:
  copyright
storage/maria/unittest/lockman-t.c:
  copyright
storage/maria/unittest/lockman1-t.c:
  copyright
storage/maria/unittest/lockman2-t.c:
  copyright
storage/maria/unittest/ma_control_file-t.c:
  copyright
storage/maria/unittest/ma_loghandler_examples.c:
  copyright
storage/maria/unittest/ma_maria_log_cleanup.c:
  copyright
storage/maria/unittest/ma_pagecache_consist.c:
  copyright
storage/maria/unittest/ma_pagecache_rwconsist.c:
  copyright
storage/maria/unittest/ma_pagecache_single.c:
  copyright
storage/maria/unittest/ma_test_loghandler-t.c:
  copyright
storage/maria/unittest/ma_test_loghandler_first_lsn-t.c:
  copyright
storage/maria/unittest/ma_test_loghandler_max_lsn-t.c:
  copyright
storage/maria/unittest/ma_test_loghandler_multigroup-t.c:
  copyright
storage/maria/unittest/ma_test_loghandler_multithread-t.c:
  copyright
storage/maria/unittest/ma_test_loghandler_noflush-t.c:
  copyright
storage/maria/unittest/ma_test_loghandler_nologs-t.c:
  copyright
storage/maria/unittest/ma_test_loghandler_pagecache-t.c:
  copyright
storage/maria/unittest/ma_test_loghandler_purge-t.c:
  copyright
storage/maria/unittest/test_file.c:
  copyright
storage/maria/unittest/test_file.h:
  copyright
storage/maria/unittest/trnman-t.c:
  copyright

storage/maria/ha_maria.cc:
  enable LOAD INDEX for Maria
storage/maria/ma_preload.c:
  Making index preloading work for Maria.
storage/maria/maria_def.h:
  We don't need this #define anymore, ma_test_recovery.pl uses
  zerofill to do comparisons of physical files.
mysql-test/r/maria-preload.result:
  result. The values of maria_pagecache_reads look too high, see
  BUG#35030 "maria_pagecache_read* status variables updated at wrong moment"
mysql-test/t/maria-preload.test:
  Test of index preloading in Maria

into  mysql.com:/home/my/mysql-maria

storage/maria/ma_pagecache.c:
  Incorrect function prefix fixed.

storage/maria/ma_pagecache.c:
  Removed incorrect clearing IN_SWITCH status.

  And back to 5.1.24


configure.in:
  And back to 5.1.24

into  mysql.com:/data0/mysqldev/my/build-200802121236-5.1.23a-maria-alpha/mysql-5.1-release

storage/maria/ma_loghandler.c:
  forgotten unlock