OS X Yosemite - Kernel panic

OS X 10.10.1 update! Hopefully this solves the problem, even though there does not seem to be any specific mention of the kernel panic issue in the lost below.

About the update

The OS X Yosemite v10.10.1 Update improves the stability, compatibility, and security of your Mac. This update:

• Improves Wi-Fi reliability
• Improves reliability when connecting to a Microsoft Exchange server
• Resolves an issue that may prevent Mail from sending messages through certain email service providers
• Addresses an issue prevents connecting to remote computers using Back to My Mac
• Resolves an issue where sharing services, Notification Center widgets and Actions may not be available
• Addresses an issue that could cause Notification Center settings to not be retained after a restart
• Addresses an issue that might prevent the Mac App Store from displaying certain updates
• Addresses an issue that could prevent some Mac mini computers from waking from sleep
• Resolves an issue that might prevent Time Machine from displaying older backups
• Addresses an issue that might prevent entering text in Japanese

im fixed too with an uninstall of avatrons air display. Bleem in heck!!

THabk you you to the original poster for the suggestion!!! You are God to me now!! Lol

Rshaker2's advice about option+cmd+p+r got me past the panic and into the "Installing on "Macintosh HD" screen on my 2008 MacBook Pro.

However, that got me to the screen hanging at 50% issue. I booted into recovery and ran Disk Utility and it told me that the hard drive didn't have a correct count of files or directories. I booted into single user, CMD-shift, and ran fsck -fy twice and that fixed things. I was then able to reboot and have the Yosemite install complete.

Man you cannot believe how thankful I am. I've got a MBP mid-2011 13' and I have been trying to find a solution for the kernel panic cycle for three days and yours worked!!! I've rebooted from shut down and restart 2 times already without any problem, never been able before the upgrade from mountain lion to yosemite. I hope it really was the Avatron Air Display. Once bitten... 😉 But so far so good!

After a few successful restarts, my problem is back... 😟 back to square one...

Today, I left my iMac at the login screen, and watched. Within two hours it rebooted 4 times and in each case it wasn't even logged in. No one was using the computer, and no apps were running (except Time Machine). This leads me to believe it is some system service that is failing, but I have no idea which one, or how it is causing the OS to restart?

I'm going to say this while knocking on wood, I installed the Yosemite 10.10.2 Beta yesterday. Right after the install I had a freeze/lockup and had to reboot. However, since that time (many hours passed now) I have not had a reboot back to login. Even sitting overnight. The description of the fixes in the beta did not mention anything about fixing the lockup, freeze, or reboots problems. For now, at least, it appears to remain solid. I am holding my breathe, however, and will wait to see how long it stays up, but this is the first day I encountered a wake up screen, instead of a login screen from a reboot.

For those in this forum, I suggest you install the public 10.10.2 Beta and see for yourself, if it helps.

I have been having the exact same problem with kernel panics since upgrading to Yosemite on my 2013 MacBook Air. I diagnosed it as being an Avatron issue and deleted everything I and MacKeeper could find related to Avatron, but there was still some "com.avatron...." thing causing the panic. So I thought, "instead of trying to get ride of Avatron and Air Display, how about doing a new install of it on my new Yosemite system." I downloaded a fresh Air Display installer, installed it, and I haven't had a single problem since! I didn't even have to uninstall the new Air Display; it just sits there not bothering anything. Yay!!

HI, am having the same problem. Did you find any solution? plesse help.

After weeks of fighting the reboot/panic problem. I backed up my data and went back to Mavericks. Have had no issues with Mavericks. I had to sacrifice iCloud drive for my iMac. This is not good, but at least it is now a useable computer. I will not upgrade it to Yosemite until they do a non-beta, final release for 10.10.2 to be sure it is really fixed, and I want to see it mentioned in the release notes too. Apple has made no acknowledgment to any problems with Yosemite reboots or panics. This is scary.

With 10.10.1, I discovered that with a Thunderbolt drive connected and Bluetooth turned on, my Mid 2011 27" Mac would regularly encounter wake from sleep failures. Error dumps have been sent to Apple with comments.

I installed 10.10.2 last night hoping that the above would be fixed. It isn't. Indeed if I now eject and power down the TB drive it causes a reboot/kernel panic. So 10.10.2 had made things worse for me.

I work in an Apple Authorized Service Center in New Zealand and I have several year working with Apple products, I have a Mac Pro 2009 4.1, 8 Cores 2.26.

I ran 20 Loops of ASD, EFI and 20 Loops OSX. Computer is 100% fine. Works perfect with Mavericks, If I install Yosemite to it, Kernel Panics all the time, specially restarting. Non of my Technician partners have a clue why is doing this...

I miss Steve Jobs.

when apple says 2, it means wait for the sounds to chime twice, not the number of chimes per time.... you have posted about P-Ram...the best way to tell if you need to reset your pram is if there is NO chime when starting up....

try turning off ALL iCloud features. This worked for my booting issues. I am also getting kernel panics, ironically between 3-3:30 every day...but we think its the graphics card