active_mi has been reset (shutdown) at the time of quering with 
SHOW SLAVE STATUS so that 
at handling of SHOW an attempt to read its members segfaults.

Fixed with checking the value of active_mi before to call show_master_info()
Merely send_ok() is invoked when active_mi does not exist.
A test can not be easiely written.

Notice, there are more analogical cases in the code which require a similar
treatment (to be reported as a bug separately). 

into  mysql.com:/nfsdisk1/lars/MERGE/mysql-5.0-merge

into  mysql.com:/nfsdisk1/lars/MERGE/mysql-5.0-merge

into  mysql.com:/nfsdisk1/lars/MERGE/mysql-4.1-merge

into  weblab.(none):/home/marcsql/TREE/mysql-5.0-rt-merge

into  adventure.(none):/home/thek/Development/cpp/mysql-5.0-runtime

into  adventure.(none):/home/thek/Development/cpp/mysql-5.0-runtime

into  adventure.(none):/home/thek/Development/cpp/mysql-5.0-runtime

Invaldating a subset of a sufficiently large query cache can take a long time.
During this time the server is efficiently frozen and no other operation can
be executed. This patch addresses this problem by setting a time limit on
how long time a dictionary access request can take before giving up on the 
attempt. This patch does not work for query cache invalidations issued by
DROP, ALTER or RENAME TABLE operations.

into  weblab.(none):/home/marcsql/TREE/mysql-5.0-runtime

The problem is that a SELECT on one thread is blocked by INSERT ... ON
DUPLICATE KEY UPDATE on another thread even when low_priority_updates is
activated.

The solution is to possibly downgrade the lock type to the setting of
low_priority_updates if the INSERT cannot be concurrent.

into  koti.dsl.inet.fi:/home/elkin/MySQL/TEAM/FIXES/5.0/bug30209-rpl_packet_mismatch_by_kaamos

into  weblab.(none):/home/marcsql/TREE/mysql-5.0-28779-b

Use double quotes instead of single ones which make the test fail on Windows. This is for bug #30164.

  
Problem:
  
In cases when a client-side macro appears inside a server-side comment, the add_line() function in mysql.cc discarded all characters until the next delimiter to remove macro arguments from the query string. This resulted in broken queries being sent to the server when the next delimiter character appeared past the comment's boundaries, because the comment closing sequence ('*/') was discarded.
  
Fix:
  
If a client-side macro appears inside a server-side comment, discard all characters in the comment after the macro (that is, until the end of the comment rather than the next delimiter).
This is a minimal fix to allow only simple cases used by the mysqlbinlog utility. Limitations that are worth documenting:
  
- Nested server-side and/or client-side comments are not supported by mysql.cc
- Using client-side macros in multi-line server-side comments is not supported
- All characters after a client-side macro in a server-side comment will be omitted from the query string (and thus, will not be sent to server).

comments)

Before this fix, the server would accept queries that contained comments,
even when the comments were not properly closed with a '*' '/' marker.

For example,
  select 1 /* + 2 <EOF>
would be accepted as
  select 1 /* + 2 */ <EOF>
and executed as
  select 1

With this fix, the server now rejects queries with unclosed comments
as syntax errors.
Both regular comments ('/' '*') and special comments ('/' '*' '!') must be
closed with '*' '/' to be parsed correctly.

explicit --sleep is removed in favor of wait_for_slave_io_to_stop.inc.
The status reporting uses `SHOW SLAVE STATUS' *not* possibly buggy "SHOW STATUS LIKE 'Slave_running'".

into  pilot.(none):/data/msvensson/mysql/mysql-5.0-maint

'mysqld_wait_started' don't return prematurely because of an old
pidfile

into  quant.(none):/ext/mysql/bk/mysql-5.0-bug21132

into  pilot.(none):/data/msvensson/mysql/mysql-5.0-maint

seems to be converted as varbinary.

The bug has been already fixed. This CS just adds a test case for it.

into  pilot.(none):/data/msvensson/mysql/mysql-5.0-maint

into  pilot.(none):/data/msvensson/mysql/mysql-5.0-maint

into  moksha.local:/Users/davi/mysql/push/mysql-5.0-runtime

into  ramayana.hindu.god:/home/tsmith/m/bk/maint/50

This is a performance bug, affecting in particular the bison generated code
for the parser.

Prior to this fix, the grammar used a long chain of reduces to parse an
expression, like:
  bit_expr -> bit_term
  bit_term -> bit_factor
  bit_factor -> value_expr
  value_expr -> term
  term -> factor
etc

This chain of reduces cause the internal state automaton in the generated
parser to execute more state transitions and more reduces, so that the
generated MySQLParse() function would spend a lot of time looping to execute
all the grammar reductions.

With this patch, the grammar has been reorganized so that rules are more
"flat", limiting the depth of reduces needed to parse <expr>.

Tests have been written to enforce that relative priorities and properties
of operators have not changed while changing the grammar.

See the bug report for performance data.

Fix typo, "next_con" -> "con"

to perform this analyzis)

into  pilot.(none):/data/msvensson/mysql/mysql-5.0-maint

into  pilot.(none):/data/msvensson/mysql/bug28812/my50-bug28812