Christian Hammers wrote:

>> MySQL crashes every time doing the query below with the following log
>> entry:
> 
> Can you provide a 
>  SHOW CREATE TABLE xxxx;

 CREATE TABLE `log` (
  `id` int(11) NOT NULL auto_increment,
  `ip` varchar(15) default NULL,
  `agent` varchar(250) default NULL,
  `timestamp` timestamp NOT NULL default CURRENT_TIMESTAMP on update
CURRENT_TIMESTAMP,
  `request` varchar(250) default NULL,
  `method` varchar(10) default NULL,
  `uid` int(11) default NULL,
  `ulogin` varchar(250) default NULL,
  `cid` int(11) default NULL,
  `module` varchar(250) default NULL,
  `fct` varchar(250) default NULL,
  `param` varchar(250) default NULL,
  `iid` int(11) default NULL,
  PRIMARY KEY  (`id`),
  KEY `rid` (`cid`),
  KEY `timestamp` (`timestamp`)
) ENGINE=MyISAM AUTO_INCREMENT=4833261 DEFAULT CHARSET=latin1

> and the complete insert (if it was not in the output below)?

Yes I think it was in the line starting with "thd->query". I tried to
run the query in this line with the mysql client and it crashed too. The
original crash was caused by a PHP script.

> If the data is not private then the database files itself could 
> be helpful, too. Can you reproduce the problem after creating a fresh new
> table and inserting the relevant query there (maybe it's just a filesystem
> corruption on this one table).

I tried that and it didn't crash. I could try to clear the other table
and see if it still crashes. But maybe that would make the problem
unreproduceable for me too. I would not be able to give any further
information if it is needed. I think a segfault is not correct even if a
table is damaged.

> Please provide your /etc/mysql/my.cnf, too, in case it's a bug related to
> charsets or special buffer sizes.

Attached.

I forgot to mention that this problem occured first after I upgraded
MySQL to version 5. It was a 4.x version before.

-- 
http://reboot.animeirc.de (Personal Homepage)

#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "/var/lib/mysql/my.cnf" to set server-specific options or
# - "~/.my.cnf" to set user-specific options.
# 
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#

# This will be passed to all mysql clients
[client]
#password       = my_password
port            = 3306
socket          = /var/run/mysqld/mysqld.sock

# Here is entries for some specific programs
# The following values assume you have at least 32M ram

# This was formally known as [safe_mysqld]. Both versions are currently parsed.
[mysqld_safe]
err-log         = /var/log/mysql/mysql.err
socket          = /var/run/mysqld/mysqld.sock

[mysqld]
user            = mysql
pid-file        = /var/run/mysqld/mysqld.pid
socket          = /var/run/mysqld/mysqld.sock
port            = 3306
#
# The preferred location for the log files is /var/log/mysql/ but the old
# file /var/log/mysql.log still gets rotated by the cronjob.
# log           = /var/log/mysql.log
log             = /var/log/mysql/mysql.log
log-error       = /var/log/mysql/mysql.err
basedir         = /usr
datadir         = /var/lib/mysql
tmpdir          = /tmp
language        = /usr/share/mysql/english
skip-locking
#
# The skip-networkin option will no longer be set via debconf menu.
# You have to manually change it if you want networking i.e. the server
# listening on port 3306. The default is "disable" - for security reasons.
# skip-networking
set-variable    = key_buffer=16M
set-variable    = max_allowed_packet=1M
set-variable    = thread_stack=128K
#
# Here you can see queries with especially long duration
#log-slow-queries       = /var/log/mysql/mysql-slow.log
#
# The following can be used as easy to replay backup logs or for replication
server-id               = 10001
#log-bin                = /var/log/mysql/mysql-bin.log
#binlog-do-db           = include_database_name
#binlog-ignore-db       = include_database_name
#
# Read the manual if you want to enable InnoDB!
# skip-innodb
#
# Read the manual, too, if you want chroot!
# chroot = /var/lib/mysql/
#
# If you want to enable SSL support (recommended) read the manual or my
# HOWTO in /usr/share/doc/mysql-server/SSL-MINI-HOWTO.txt
# ssl-ca=/etc/mysql/cacert.pem
# ssl-cert=/etc/mysql/server-cert.pem
# ssl-key=/etc/mysql/server-key.pem

# log-slave-updates
skip-slave-start
# replicate-do-db=nybria

# Uncomment the following if you are using InnoDB tables
innodb_data_home_dir = /var/lib/mysql/
innodb_data_file_path = ibdata1:10M:autoextend
innodb_log_group_home_dir = /var/lib/mysql/
innodb_log_arch_dir = /var/lib/mysql/
# You can set .._buffer_pool_size up to 50 - 80 %
# of RAM but beware of setting memory usage too high
innodb_buffer_pool_size = 16M
innodb_additional_mem_pool_size = 2M
# Set .._log_file_size to 25 % of buffer pool size
innodb_log_file_size = 5M
innodb_log_buffer_size = 8M
innodb_flush_log_at_trx_commit = 1
innodb_lock_wait_timeout = 50

[mysqldump]
quick
set-variable    = max_allowed_packet=1M

[mysql]
#no-auto-rehash # faster start of mysql but no tab completition

[isamchk]
set-variable    = key_buffer=16M

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