• unknown's avatar
    Bug#21476: (Thread stack overrun not caught, causing SEGV) · 7f221a18
    unknown authored
    The STACK_MIN_SIZE is currently set to 8192, when we actually need 
    (emperically discovered) 9236 bytes to raise an fatal error, on Ubuntu 
    Dapper Drake, libc6 2.3.6-0ubuntu2, Linux kernel 2.6.15-27-686, on x86.
    
    I'm taking that as a new lower bound, plus 100B of wiggle-room for sundry
    word sizes and stack behaviors.
    
    The added test verifies in a cross-platform way that there are no gaps 
    between the space that we think we need and what we actually need to report 
    an error.
    
    DOCUMENTERS:  This also adds "let" to the mysqltest commands that evaluate
    an argument to expand variables therein.  (Only right of the "=", of course.)
    
    
    client/mysqltest.c:
      Add "let" to the list of mysqltest commands that evaluates its arguments (only
      the right-hand-side of the equals-sign expression).
    mysql-test/r/mysqltest.result:
      Added test to show that mysqltest "let" will evaluate the RHS correctly (and 
      expand the backslash test).
    mysql-test/t/mysqltest.test:
      Added test to show that mysqltest "let" will evaluate the RHS correctly (and 
      expand the backslash test).
    sql/mysql_priv.h:
      Increase the amount we require to be available for the stack, since 
      experience told us that the previous amount was too little by at least
      1044 bytes.
    mysql-test/r/execution_constants.result:
      New BitKeeper file ``mysql-test/r/execution_constants.result''
    mysql-test/t/execution_constants.test:
      New BitKeeper file ``mysql-test/t/execution_constants.test''
    7f221a18
execution_constants.result 1 KB