Kernel Panic

There may well be some incompatibility with the extension installed for your guitar hardware. Try uninstalling the guitar software and disconnecting the peripheral hardware. Reboot the computer and see if the problem is fixed. If it is contact the developer of the guitar software and hardware for a solution.

It's important that the extension, com.line6.driver.xtaudio, is removed prior to rebooting. If the software did not come with an uninstaller:

Uninstalling Software: The Basics

Most OS X applications are completely self-contained "packages" that can be uninstalled by simply dragging the application to the Trash. Applications may create preference files that are stored in the /Home/Library/Preferences/ folder. Although they do nothing once you delete the associated application, they do take up some disk space. If you want you can look for them in the above location and delete them, too.

Some applications may install an uninstaller program that can be used to remove the application. In some cases the uninstaller may be part of the application's installer, and is invoked by clicking on a Customize button that will appear during the install process.

Some applications may install components in the /Home/Library/Applications Support/ folder. You can also check there to see if the application has created a folder. You can also delete the folder that's in the Applications Support folder. Again, they don't do anything but take up disk space once the application is trashed.

Some applications may install a startupitem or a Log In item. Startupitems are usually installed in the /Library/StartupItems/ folder and less often in the /Home/Library/StartupItems/ folder. Log In Items are set in the Accounts preferences. Open System Preferences, click on the Accounts icon, then click on the LogIn Items tab. Locate the item in the list for the application you want to remove and click on the "-" button to delete it from the list.

Some software use startup daemons or agents that are a new feature of the OS. Look for them in /Library/LaunchAgents/ and /Library/LaunchDaemons/ or in /Home/Library/LaunchAgents/.

If an application installs any other files the best way to track them down is to do a Finder search using the application name or the developer name as the search term. Unfortunately Spotlight will not look in certain folders by default. You can modify Spotlight's behavior or use a third-party search utility, EasyFind, instead.

Some applications install a receipt in the /Library/Receipts/ folder. Usually with the same name as the program or the developer. The item generally has a ".pkg" extension. Be sure you also delete this item as some programs use it to determine if it's already installed.

There are many utilities that can uninstall applications. Here is a selection:

1. AppZapper

2. AppDelete

3. Automaton

4. Hazel

5. AppCleaner

6. CleanApp

7. iTrash

8. Amnesia

9. Uninstaller

10. Spring Cleaning

For more information visit The XLab FAQs and read the FAQ on removing software.

Panic reports are meant for the Apple techs. But here is some stuff for you to read:

Visit The XLab FAQs and read the FAQ on diagnosing kernel panics.

How to fix kernel panics after installing OS X updates | MacIssues

Mac OS X- How to log a kernel panic

OS X- About kernel panics

Tutorial - Avoiding and eliminating Kernel panic

And, here is an older technical report that I don't think has been updated: Technical Note TN2063- Understanding and Debugging Kernel Panics.

- In regards to the panic report and for future reference, is it enough to look at the first line of the report to see what the main issue is?

generally, No.

A kernel panic happens when fundamental problems appear in the Mac OS X kernel -OR- in your Mac Hardware. It is not one, or even a few problems, it is one of Thousands of problems.

Posting the full report is the most likely to provide the information needed for analysis -- but not necessarily a conclusive result, as some of these reports need to be considered in batches to suggest the possible problem.

There are some problems that show up as Machine check, and these are almost always Hardware problems. But many that are not machine checks are still caused by Hardware.

A

One or more links have been posted in this thread to the "macupdate" website. Do not follow the links, and never download anything from that site. It intentionally distributes OS X malware by packaging some free applications in an unnecessary and malicious "installer."

All software should be downloaded directly from the developer's website or from the App Store. Don't trust any site such as "macupdate" that aggregates download links.

B

Never use any software that purports to remove other software, no matter where it comes from. All such products are unreliable.

C

If the panic has happened only once, and there's no repetition in at least a few thousand hours of use, I suggest you ignore it. It's unlikely to have been caused by software.

How to safely use MacUpdate to download malware-free software:

This site has both free and paid membership accounts. If you have neither then some software will be distributed as an installer wrapper that includes adware/malware you may not want. Such a download may appear on your computer like this: Firefox Installer.dmg. Delete the download and return to the main site where you will find a direct link to the developer's website. Use that link from which to download the software.

To avoid such downloads from MU just create a free membership account. Log into your account prior to using the site. This will avoid the installer wrappers and downloading adware or malware. I continue to use their site without any problems.

If you prefer not to create a membership account then note that on the download page under the price box will be the link to the developer’s site. Use that link and download the software directly from the developer circumventing the use of MU altogether.

You may be sent warnings from sone users that warns that the site is “dangerous.” In fact my list of adware tools has no links to MU. His warning is an exaggeration and it is false. Learn the facts. You merely need to use the site intelligently. Support the site but do so wisely - establish a free or paid membership to avoid problems with malware. Don’t pay attention to other users who warn you away with hyperbole and rhetorical insults.

If you're confused by the dangerous misinformation in this thread, please see below.

...MacUpdate, long considered to be one of the only remaining trustworthy download aggregation sites for the Mac, has succumbed to the same plague that has ruined most of the others: adware. ...

Download.com (formerly VersionTracker) and Softonic have both been engaging in this kind of behavior for some time, and for this reason, Mac experts have been recommending against the use of such sites. Although it’s generally recommended to only download software from the developer’s site (such as skype.com in the case of Skype), some have continued to recommend MacUpdate, which hasn’t engaged in such behavior… until now. It appears MacUpdate may need to be added to the boycott list.

The oft-repeated advice for those looking for software to download bears repeating once again: only download apps from the Mac App Store or from the official developer’s website.

Has MacUpdate fallen to the adware plague?

MacUpdate is bundling adware with some third-party apps, without the permission of the developers of those apps, and is no longer to be trusted.

Is Utorrent a virus?

MacUpdate has joined the dark side, bundling adware into free downloads like Firefox. If you want to avoid this completely, stop downloading apps from MacUpdate – download directly from the official homepages of the software you want.

Why You Shouldn't Download Mac Apps From MacUpdate Any More

Adware installers from download sites have become ubiquitous and are now the norm rather than the exception. We therefore urge users to refrain from downloading Cyberduck from download sites such as download.com, softonic.com or macupdate.com which are or have in the past distributed adware (advertising-supported installers) without our consent. Always download software through the Mac App Store or directly from the developer’s site.

Mind the adware

You may be told to sign up for a free account on the "macupdate" site. In order to do that, you would have to provide a working email address, which would then be used to send you spam. Do not give an email address or other personal information to the management of that site.

Even more strangely, you may be told that you should "support" the macupdate site, whatever that means. There's no reason to "support" it. Support yourself instead by avoiding it altogether.