我的mysql4.0服务为什么重启后立即停止

错误日志：
080911  3:06:51 MySql: Normal shutdown080911  3:06:51  InnoDB: Starting shutdown...
080911  3:06:55  InnoDB: Shutdown completed
080911  3:06:55 MySql: Shutdown Complete080911  3:11:58  InnoDB: Started
080911  3:11:59 MySql: Got signal 11. Aborting!080911  3:11:59 Aborting
看错误日志是这样的，谢谢了搞了一天了都
my.ini是这样的#This File was made using the WinMySQLAdmin 1.4 Tool
#2004-2-23 16:28:14#Uncomment or Add only the keys that you know how works.
#Read the MySQL Manual for instructions[mysqld]
###bind-address=222.173.108.6
basedir=C:/mysql426
datadir=D:/webmachine/mysql4026/data
#language=D:/mysql /your language directory
#slow query log#=
#tmpdir#=
port=3306
set-variable    = max_connections=1500
skip-locking
#skip-networking
set-variable        = key_buffer=384M
set-variable        = max_allowed_packet=1M
set-variable        = table_cache=512
set-variable        = sort_buffer=2M
set-variable        = record_buffer=2M
set-variable        = thread_cache=8
# Try number of CPU's*2 for thread_concurrency
set-variable        = thread_concurrency=8
set-variable        = myisam_sort_buffer_size=64M
#set-variable        = connect_timeout=5
#set-variable        = wait_timeout=5
server-id        = 1
[isamchk]
set-variable        = key_buffer=128M
set-variable        = sort_buffer=128M
set-variable        = read_buffer=2M
set-variable        = write_buffer=2M[myisamchk]
set-variable        = key_buffer=128M
set-variable        = sort_buffer=128M
set-variable        = read_buffer=2M
set-variable        = write_buffer=2M
[WinMySQLadmin]
Server=C:/mysql426/bin/mysqld-nt.exe