title: Cannot start mysql in xampp
body: <p>Xampp mysql phpmyadmin was running perfectly a few days ago. Now I am encountering this problem.</p>
  
  <p>I tried changing port numbers but I still encounter this problem</p>
  
  <p>A windows error prompts telling me that:</p>
  
  <p>mysqld.exe has stopped working with the following problem details:</p>
  
  <pre><code>Problem signature:
    Problem Event Name:   APPCRASH
    Application Name: mysqld.exe
    Application Version:  5.6.16.0
    Application Timestamp:    52d55dcc
    Fault Module Name:    mysqld.exe
    Fault Module Version: 5.6.16.0
    Fault Module Timestamp:   52d55dcc
    Exception Code:   c0000005
    Exception Offset: 00b5957a
    OS Version:   6.1.7601.2.1.0.272.7
    Locale ID:    1033
    Additional Information 1: 0a9e
    Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
    Additional Information 3: 0a9e
    Additional Information 4: 0a9e372d3b4ad19135b953a78882e789
  
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  <p>Xampp Control Panel also provided with the following error details:</p>
  
  <pre><code>10:47:55 AM  [main]     Control Panel Ready
  10:47:56 AM  [mysql]    Attempting to start MySQL app...
  10:47:56 AM  [mysql]    Status change detected: running
  10:47:59 AM  [mysql]    Status change detected: stopped
  10:47:59 AM  [mysql]    Error: MySQL shutdown unexpectedly.
  10:47:59 AM  [mysql]    This may be due to a blocked port, missing dependencies, 
  10:47:59 AM  [mysql]    improper privileges, a crash, or a shutdown by another method.
  10:47:59 AM  [mysql]    Press the Logs button to view error logs and check
  10:47:59 AM  [mysql]    the Windows Event Viewer for more clues
  10:47:59 AM  [mysql]    If you need more help, copy and post this
  10:47:59 AM  [mysql]    entire log window on the forums
  </code></pre>
  
  <p>I also tried doing this which was effective for some people with the same problem</p>
  
  <p><a href="https://stackoverflow.com/questions/18022809/xampp-mysql-shutdown-unexpectedly">XAMPP - MySQL shutdown unexpectedly</a></p>
  
  <p>I opened the error logs but I can't seem to understand what it says.</p>
  
  <pre><code>2014-08-27 09:12:23 3296 [Note] Plugin 'FEDERATED' is disabled.
  2014-08-27 09:12:23 ce4 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.
  2014-08-27 09:12:23 3296 [Note] InnoDB: Using atomics to ref count buffer pool pages
  2014-08-27 09:12:23 3296 [Note] InnoDB: The InnoDB memory heap is disabled
  2014-08-27 09:12:23 3296 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
  2014-08-27 09:12:23 3296 [Note] InnoDB: Compressed tables use zlib 1.2.3
  2014-08-27 09:12:23 3296 [Note] InnoDB: Not using CPU crc32 instructions
  2014-08-27 09:12:23 3296 [Note] InnoDB: Initializing buffer pool, size = 16.0M
  2014-08-27 09:12:23 3296 [Note] InnoDB: Completed initialization of buffer pool
  2014-08-27 09:12:23 3296 [Note] InnoDB: Highest supported file format is Barracuda.
  2014-08-27 09:12:23 3296 [Note] InnoDB: The log sequence numbers 1625987 and 1625987 in ibdata files do not match the log sequence number 3459249 in the ib_logfiles!
  2014-08-27 09:12:23 3296 [Note] InnoDB: Database was not shutdown normally!
  2014-08-27 09:12:23 3296 [Note] InnoDB: Starting crash recovery.
  2014-08-27 09:12:23 3296 [Note] InnoDB: Reading tablespace information from the .ibd files...
  2014-08-27 09:12:23 3296 [Note] InnoDB: Restoring possible half-written data pages 
  2014-08-27 09:12:23 3296 [Note] InnoDB: from the doublewrite buffer...
  2014-08-27 09:12:25 3296 [Note] InnoDB: 128 rollback segment(s) are active.
  2014-08-27 09:12:25 3296 [Note] InnoDB: Waiting for purge to start
  2014-08-27 09:12:25 3296 [Note] InnoDB: 5.6.16 started; log sequence number 3459249
  2014-08-27 09:12:25 3296 [Note] Server hostname (bind-address): '*'; port: 3306
  2014-08-27 09:12:25 3296 [Note] IPv6 is available.
  2014-08-27 09:12:25 3296 [Note]   - '::' resolves to '::';
  2014-08-27 09:12:25 3296 [Note] Server socket created on IP: '::'.
  2014-08-27 09:12:26 3296 [Note] Event Scheduler: Loaded 0 events
  2014-08-27 09:12:26 3296 [Note] c:\xampp\mysql\bin\mysqld.exe: ready for connections.
  Version: '5.6.16'  socket: ''  port: 3306  MySQL Community Server (GPL)
  </code></pre>
  
  <p>I also encountered a solution for this which is changing the port again that conflicts with skype. But I don't have skype installed in my PC</p>
  
  <p><a href="https://stackoverflow.com/questions/15169861/xampp-error-mysql-shutdown-unexpectedly">XAMPP - Error: MySQL shutdown unexpectedly</a></p>
  
  <p>I also tried NetStat to check if my default mysql port 3306 is being used, but it mentioned that no services were using that port.</p>
  
  <p>Thanks for the help.</p>