# mysqld --log-error=/root/mysql_wft_log
130803 18:00:04 [Note] Plugin 'FEDERATED' is disabled.
130803 18:00:04 InnoDB: The InnoDB memory heap is disabled
130803 18:00:04 InnoDB: Mutexes and rw_locks use GCC atomic builtins
130803 18:00:04 InnoDB: Compressed tables use zlib 1.2.3
130803 18:00:04 InnoDB: Using Linux native AIO
130803 18:00:04 InnoDB: Warning: innodb_file_io_threads is deprecated. Please use innodb_read_io_threads and innodb_write_io_threads instead
130803 18:00:04 InnoDB: Initializing buffer pool, size = 4.0G
130803 18:00:04 InnoDB: Completed initialization of buffer pool
130803 18:00:04 InnoDB: highest supported file format is Barracuda.
InnoDB: Log scan progressed past the checkpoint lsn 537210815873
130803 18:00:04  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...
InnoDB: Doing recovery: scanned up to log sequence number 537212366959
InnoDB: Error: tried to read 16384 bytes at offset 0 4931584.
InnoDB: Was only able to read 0.
130803 18:00:22  InnoDB: Operating system error number 5 in a file operation.
InnoDB: Error number 5 means 'Input/output error'.
InnoDB: Some operating system error numbers are described at
InnoDB: http://dev.mysql.com/doc/refman/5.5/en/operating-system-error-codes.html
InnoDB: File operation call: 'read'.
InnoDB: Cannot continue operation.