Error: MySQL shutdown unexpectedly

Problems with the Windows version of XAMPP, questions, comments, and anything related.

Error: MySQL shutdown unexpectedly

Postby D4ffieduck » 01. May 2015 16:12

Hi guys, I just installed the newest version of XAMPP( 5.6.8 ) And MYSQL is not working.

The message I get in XAMPP is as follows:
16:58:59 [mysql] Error: MySQL shutdown unexpectedly.
16:58:59 [mysql] This may be due to a blocked port, missing dependencies,
16:58:59 [mysql] improper privileges, a crash, or a shutdown by another method.
16:58:59 [mysql] Press the Logs button to view error logs and check
16:58:59 [mysql] the Windows Event Viewer for more clues
16:58:59 [mysql] If you need more help, copy and post this
16:58:59 [mysql] entire log window on the forums

And in the mysql_error.log the message is the following:
2015-05-01 16:58:59 12744 [Note] Plugin 'FEDERATED' is disabled.
2015-05-01 16:58:59 239c InnoDB: Warning: Using innodb_additional_mem_pool_size is DEPRECATED. This option may be removed in future releases, together with the option innodb_use_sys_malloc and with the InnoDB's internal memory allocator.
2015-05-01 16:58:59 12744 [Note] InnoDB: Using atomics to ref count buffer pool pages
2015-05-01 16:58:59 12744 [Note] InnoDB: The InnoDB memory heap is disabled
2015-05-01 16:58:59 12744 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
2015-05-01 16:58:59 12744 [Note] InnoDB: Memory barrier is not used
2015-05-01 16:58:59 12744 [Note] InnoDB: Compressed tables use zlib 1.2.3
2015-05-01 16:58:59 12744 [Note] InnoDB: Not using CPU crc32 instructions
2015-05-01 16:58:59 12744 [Note] InnoDB: Initializing buffer pool, size = 16.0M
2015-05-01 16:58:59 12744 [Note] InnoDB: Completed initialization of buffer pool
2015-05-01 16:58:59 12744 [Note] InnoDB: Highest supported file format is Barracuda.
2015-05-01 16:58:59 239c InnoDB: Operating system error number 87 in a file operation.
InnoDB: Some operating system error numbers are described at
2015-05-01 16:58:59 12744 [ERROR] InnoDB: File E:\xamp\mysql\data\ib_logfile0: 'aio read' returned OS error 187. Cannot continue operation

I appreciate all the help as I don't know how to solve this.
Thanks in advance
Posts: 2
Joined: 01. May 2015 16:04
Operating System: Windows

Re: Error: MySQL shutdown unexpectedly

Postby mark.mcdonald » 01. May 2015 16:44

Rather than the installer. Try downloading xampp manually eg: the zip (assuming windows). Because this is a fresh install (assuming no work has been done yet, no progress lost), delete the mysql folder and replace by copying over the manual downloaded one. If this doesn't work I would revert to downloading 5.6.3 package and seeing if this changes anything. IF that still doesn't work I would check the permissions on your E: drive as it may be affecting some files. "E:\xamp\mysql\data\ib_logfile0: 'aio read' "
Posts: 160
Joined: 13. March 2015 15:48
Location: Edmonton
Operating System: Windows Server 2012 R2

Re: Error: MySQL shutdown unexpectedly

Postby D4ffieduck » 01. May 2015 18:44

Thanks, it seems to be a hard drive issue.
I now have installed XAMPP on a different drive(C:) and it works now.
Posts: 2
Joined: 01. May 2015 16:04
Operating System: Windows

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