Kernel Panic in Mac OS X

A kernel panic is a term specific to UNIX operating systems, such as Mac OS X, and it is the equivalent to the term bug check in the Windows world. It panic is the action taken when an internal fatal error is detected by the system. A kernel panic is designed by the operating system to react by sending out an error when something goes wrong.

If you receive a kernel panic error message that says you need to restart your computer, or that your Mac won’t start up in Mac OS X, the first thing you should do is restart your system to see if the same error remains when you boot back up. Basically, when a kernel panic occurs, there has been a system crash in Mac OS X. The computer system responds to the panic by doing one of two things: waiting for the system to be manually rebooted or initiating an automatic reboot.

There are several reasons why a kernel panic occurs. The information provided with a kernel panic is often very technical, and it has the goal of assisting a system administrator in diagnosing a computer problem. Some of the causes of kernel panics may require technical assistance beyond that of the average user. Listed below are a few of the causes and how to go about resolving them.

Defective or incompatible RAM or lack of hard disk space or RAM

This is the most frequent cause of a kernel panic error. You can first try to defragment your system and clean up your hard drive to get more available memory. In the Applications directory, open the Utilities folder and then open the Disc Utility Program. Select the drive you want to defragment by highlighting this drive from the list available. This process may take some time so plan to do this during a time when you will not need your computer, overnight for instance.

Defragmenting may work for the short term, but the best way to resolve a RAM issue over the long term is to purchase more RAM. Memory can easily be purchased through a computer store, and either you or a computer technician can install it. It is important to ensure that the RAM is compatible with Mac OS X.

Incompatible, or corrupted kernel extensions, or drivers

Third party hardware that is outdated or programs that are incompatible with the Mac OS X system being used can cause a kernel panic error. Ensure that the software and hardware that you are using is compatible with your Mac OS X system. This should be listed in the software documentation that you have. If you find you are using something that is not compatible, you should remove it and install something that is compatible. You can also check the website of the applications you are using and download or agree to updates as they are available. Most software prompts you periodically to search for updates. If you know that your software is compatible, keeping it up to date is the best way to avoid kernel panics.

Hard disk corruption

When there is a problem with your hard disk, it will often result in the freezing of your computer or your computer running slowly. If freezing occurs, it is a sure sign of trouble internally. In this case, you will want to obtain assistance from a professional to repair your corrupted hard disk.