mysqld不断崩溃

Mysql多天来正常工作，突然间崩溃了所有的命令。 请帮我解决它。

130206 21:03:03 [Note] Plugin 'FEDERATED' is disabled. 130206 21:03:03 InnoDB: The InnoDB memory heap is disabled 130206 21:03:03 InnoDB: Mutexes and rw_locks use Windows interlocked functions 130206 21:03:03 InnoDB: Compressed tables use zlib 1.2.3 130206 21:03:03 InnoDB: Initializing buffer pool, size = 16.0M 130206 21:03:03 InnoDB: Completed initialization of buffer pool 130206 21:03:03 InnoDB: highest supported file format is Barracuda. InnoDB: The log sequence number in ibdata files does not match InnoDB: the log sequence number in the ib_logfiles! 130206 21:03:03 InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd files... InnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer... 130206 21:03:04 InnoDB: Waiting for the background threads to start 130206 21:03:05 InnoDB: 1.1.8 started; log sequence number 3480263 130206 21:03:05 [Note] Server hostname (bind-address): '0.0.0.0'; port: 3306 130206 21:03:05 [Note] - '0.0.0.0' resolves to '0.0.0.0'; 130206 21:03:05 [Note] Server socket created on IP: '0.0.0.0'. 130206 21:03:05 [Note] Event Scheduler: Loaded 0 events 130206 21:03:05 [Note] c:\xampp\mysql\bin\mysqld.exe: ready for connections. Version: '5.5.27' socket: '' port: 3306 MySQL Community Server (GPL) 130206 21:04:24 [Note] c:\xampp\mysql\bin\mysqld.exe: Normal shutdown 130206 21:04:24 [Note] Event Scheduler: Purging the queue. 0 events 130206 21:04:24 InnoDB: Starting shutdown... 130206 21:04:24 InnoDB: Shutdown completed; log sequence number 3480263 130206 21:04:24 [Note] c:\xampp\mysql\bin\mysqld.exe: Shutdown complete