You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
84 lines
3.3 KiB
84 lines
3.3 KiB
# ER_STACK_OVERRUN_NEED_MORE does not currenly work well with TSan
|
|
--source include/not_tsan.inc
|
|
|
|
#
|
|
# Bug#21476: Lost Database Connection During Query
|
|
#
|
|
# When the amount of stack space we think we need to report an error is
|
|
# actually too small, then we can get SEGVs. But, we don't want to reserve
|
|
# space that we could use to get real work done. So, we want the reserved
|
|
# space small, and this test verifies that the reservation is not too small.
|
|
|
|
CREATE TABLE `t_bug21476` (
|
|
`ID_BOARD` smallint(5) unsigned NOT NULL default '0',
|
|
`ID_MEMBER` mediumint(8) unsigned NOT NULL default '0',
|
|
`logTime` int(10) unsigned NOT NULL default '0',
|
|
`ID_MSG` mediumint(8) unsigned NOT NULL default '0',
|
|
PRIMARY KEY (`ID_MEMBER`,`ID_BOARD`),
|
|
KEY `logTime` (`logTime`)
|
|
) DEFAULT CHARSET=cp1251 COLLATE=cp1251_bulgarian_ci;
|
|
|
|
INSERT INTO `t_bug21476` VALUES (2,2,1154870939,0),(1,2,1154870957,0),(2,183,1154941362,0),(2,84,1154904301,0),(1,84,1154905867,0),(2,13,1154947484,10271),(3,84,1154880549,0),(1,6,1154892183,0),(2,25,1154947581,10271),(3,25,1154904760,0),(1,25,1154947373,10271),(1,179,1154899992,0),(2,179,1154899410,0),(5,25,1154901666,0),(2,329,1154902026,0),(3,329,1154902040,0),(1,329,1154902058,0),(1,13,1154930841,0),(3,85,1154904987,0),(1,183,1154929665,0),(3,13,1154931268,0),(1,85,1154936888,0),(1,169,1154937959,0),(2,169,1154941717,0),(3,183,1154939810,0),(3,169,1154941734,0);
|
|
|
|
delimiter //;
|
|
let $query_head=UPDATE t_bug21476 SET ID_MSG = IF(logTime BETWEEN 1 AND 1101770053, 2, //
|
|
let $query_tail =) WHERE logTime BETWEEN 1 AND 1104091539 AND ID_MSG = 0//
|
|
|
|
# Scan over the possible stack heights, trying to recurse to exactly that
|
|
# depth. Eventually, we will reach our imposed limit on height and try to
|
|
# raise an error. If the remaining stack space is enough to raise that error,
|
|
# we will get an error-number of 1436 and quit the loop. If it's not enough
|
|
# space, we should get a SEGV
|
|
|
|
# Well more than enough recursions to find the end of our stack.
|
|
let $i = 100000//
|
|
disable_query_log//
|
|
disable_result_log//
|
|
while ($i)
|
|
{
|
|
# If we SEGV because the min stack size is exceeded, this would return error
|
|
# 2013 .
|
|
error 0,ER_STACK_OVERRUN_NEED_MORE //
|
|
eval $query_head 0 $query_tail//
|
|
|
|
if ($mysql_errno)
|
|
{
|
|
# We reached the place where we reported an error about the stack limit,
|
|
# and we successfully returned the error. That means that at the stack
|
|
# limit, we still have enough space reserved to report an error.
|
|
let $i = 1//
|
|
|
|
# Check that mysql_errname is ER_STACK_OVERRUN_NEED_MORE
|
|
if ($mysql_errname != ER_STACK_OVERRUN_NEED_MORE)
|
|
{
|
|
die Wrong error triggered, expected ER_STACK_OVERRUN_NEED_MORE but got $mysql_errname//
|
|
}
|
|
|
|
}
|
|
|
|
# Multiplying by three stack frames should be fine enough resolution.
|
|
# Trading exactness for speed.
|
|
|
|
# go one more level deep
|
|
let $query_head = $query_head IF(logTime <= 1104091$i, $i, //
|
|
let $query_tail =) $query_tail//
|
|
|
|
# go one more level deep
|
|
let $query_head = $query_head IF(logTime <= 1105091$i, $i, //
|
|
let $query_tail =) $query_tail//
|
|
|
|
# go one more level deep
|
|
let $query_head = $query_head IF(logTime <= 1106091$i, $i, //
|
|
let $query_tail =) $query_tail//
|
|
|
|
dec $i//
|
|
}
|
|
enable_result_log//
|
|
enable_query_log//
|
|
|
|
echo Assertion: mysql_errname ER_STACK_OVERRUN_NEED_MORE == $mysql_errname//
|
|
|
|
delimiter ;//
|
|
DROP TABLE `t_bug21476`;
|
|
|
|
--echo End of 5.0 tests.
|
|
|