In UNIX, a panic is an unrecoverable system error detected by the kernel.

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Recurring kernel panic when waking from sleep — can anyone tell me what this report means?

Hello — I'm experiencing kernel panics every single time my Mid-2012 MacBook Pro (2.3 GHz, Intel i7) wakes from sleep. Running El Capitan 10.11.3. I look at the reports, but they are entirely greek to ...
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MacBook Pro reboot twice every time I wake it up from sleep mode

I'm wondering if I need to migrate to Linux to have a functioning OS.. Anyway, my problem is present from Mavericks till El Capitan and is about rebooting twice every time I wake my MacBook Pro from ...
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What is Causing the Kernel Panic

I've been having an issue where my computer will randomly shut down and give me the panic report saying that your computer restarted because of a problem. I took it to the apple store they ran a ...
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1answer
282 views

Kernel Panic El Capitan 10.11.2 4MEM/60

The machine: late 2011 15in MacBook Pro i7 Sandybridge 2.2 GHz 8 GB/8 GB (1333MHz,DDR3) = 16 GB RAM Intel HD graphics 3000 512MB The background: I have had this Mac for awhile now. I have dropped ...
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2answers
350 views

Kernel panic in old MacBook Pro after upgrading to El Capitan

I'm trying to get my old 15-inch MacBook Pro (Mac-F42D86C8) from late 2008, back to life. I installed El Capitan operating system upgrade and since then, everytime I boot I reach a kernel panic and ...
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60 views

Macbook reboots twice after sleep

Macbook Pro, El Capitan. Anyway it occurred also with the old version of Mac OS X. May be a bad RAM stick? I write here the Apple Report: Anonymous UUID: 4C60E02F-404C-D0CB-4E5F-C463228584E1 ...
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78 views

MBP Mid 2012 Panic report - Freeze and Crash

this morning my mid-2012 MBP 13" get stuck during everyday work process, freeze and restart itself. here the panic report Thu Dec 3 10:42:18 2015 *** Panic Report *** panic(cpu 3 caller ...
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110 views

random shutdown? (logfiles included)

My iMac (OS X El Capitan 10.11.1 newly installed on 27.11.2015) keeps shutting down randomly and restarting for about one and a half month now. Sometimes it even shuts down during the restart caused ...
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54 views

Unable to connect Samsung S22E450 monitor

I'm unable to connect my MBPr 15'' mid 2015 to Samsung S22E450 display using Thunderbolt to DVI adapter. Using this machine no kernel panic occurs. This is the console log: 23/11/15 11:04:32,769 ...
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Can anyone help me with this kernel panic? (IMMEDIATE ungraceful shut down on “restart”)

Any help is appreciated, thanks in advance! :) (OS version is 10.11.0 - I can't upgrade to 10.11.1 without a graceful restart. ouch.) Panic Report Anonymous UUID: <snip> Mon Nov 9 18:48:26 ...
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258 views

MacMini Mid-2010 4,1 USB Problems with Keyboard and Mouse (IOUSBHostHIDDevice & AppleUSBHostPort errors)

I am having following issues on the MacMini quoted in the Title. Basically every so often, the keyboard and/or mouse freeze. I then have to unplug them and plug them back in and they work fine again ...
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183 views

Mac won't reboot or shutdown via GUI any more

A few weeks ago, I don't know exactly when but definitely with or after the upgrade from 10.9 to 10.11 my Late 2013 iMac stopped being able to reboot or shutdown via the GUI. When I click a reboot ...
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2answers
429 views

Macbook Pro later 2011 with El Capitan Version 10.11.1 (15B42) crashing with no reason

I don't know yet what is causing this issue. I have a bootcamp installed Windows 8.1 and I was having no issue even after updating to El Capitan and now I got a BSOD on Windows twice (when I tried to ...
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86 views

iMac 2009 late Kernel Panic

I always face kernel panic when the iMac processes heavy load, like editing iMovie and uploading to youtube. The problem occurred a few years ago from 10.9 to 10.11. The kernel panic logs are listed ...
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1answer
218 views

Upgraded iMac 5k restarts randomly

I have a very frustrating problem and I need your guys help to fix it. I bought an imac 5k that I upgraded it's CPU, HDD, RAM. This is my second one i have upgraded and the second one that keeps ...
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178 views

Macbook Pro (Early 2015) bluetooth issues after waking from sleep

Just got a new MacBook Pro (Retina, 13-inch, Early 2015), but there are several problems with bluetooth. Most of them occur when waking from sleep: Sometimes the bluetooth icon shows "Not ...
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200 views

MacBook Pro: panic cpu caller kernel trap

I am using MacBook Pro with OS X Yosemite installed. Lately my system is crashing and not booting up. While system was crashing, the screen was flickering and then it got shut down. I tried to ...
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GPU Panic: OS X 10.11, El Capitan stability issues and spontaneous restarts

I am facing severe stability issues after doing a clean install of OS X 10.11, El Capitan, on my MacBook Pro (Mid 2010). It restarts spontaneously for no apparent reason. Sometimes it subsequently ...
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1answer
150 views

Kernel Panic - Random Shutdown - Please Help

Recently (the last three day) my late 2013 iMac has been suffering from kernel panics. After reboot, console shows a 'Previous shutdown cause: -62'. Can someone please tell me what this means. The ...
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1answer
227 views

Macbook Pro 2010 15" keeps crashing randomly with no warning

I have started experiencing random crashes from my 2010 Macbook Pro 15" It has not symptoms before it crashes, and it doesn't happen on a timely basis but it does happen once every few days, ...
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46 views

What could be the cause to the Intel HD 4000 issues (kernel panics and flickering)?

Since the update to OS X 10.10.3 a number of people experience random kernel panics and display flickering. The issue is being discussed in the Apple discussion forum here. However, the discussion ...
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218 views

10.11 Prohibitory Symbol after Reimage or Kernel Panic on NetBoot

I apologize if this is convoluted. I've tried so many different ways of getting this to work that I'm getting them all mixed up. With the launch of Mac OS 10.11 El Capitan, we've encountered some ...
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How to fix SyncMate kernel panic at El Capitan boot

I've recently installed El Capitan. The other day I restarted my computer for the first time for a while, and now it doesn't boot. I restarted in verbose mode and can see that there's a kernel panic ...
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Mac mini, restarting and kernel panic

I have had repeated restarts on a Mac mini (late 2012). I don't really understand the log, but I was hoping someone might be able to break it down and possibly offer some solutions. Thank you *** ...
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430 views

Is 10.10.5 more stable than 10.10.0?

Straight to the point. I am using Mac OS X 10.9.5 (Mavericks) and have stayed on it mainly due to overall system stability. I don’t want to reboot or deal with crashes from Mac OS X or a Linux ...
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2k views

El Capitan gives me a kernel panic error right after installing

Almost immediately after the installation reboot, and seconds after the apple logo appears the following error shows up; panic(cpu 0 caller 0xffffff8017d263a6) : "zone_init;kmem_suballoc ...
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1answer
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Kernel panic after installing El Capitan

I've upgraded from El Capitan GM to Release today. After the installer app has moved the install files, the mac tried to reboot but the screen stayed black. I shut it off using the power button and ...
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Macbook permanently crashes while updating to El Capitan

I downloaded, and then started installing OS X El Capitan on my MacBook Pro. But I think it just stacked i think. So I turn off mac, and then turn on again. Every time when I try to login on my ...
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What does this error message mean? The iMac just restarted itself [duplicate]

Anonymous UUID: BA94AC5C-A21D-7A27-8D88-E5FDB68C5FFF Sun Sep 20 10:05:13 2015 *** Panic Report *** panic(cpu 6 caller 0xffffff801cc02617): "m_free: freeing an already freed ...
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1answer
86 views

Should there be an Apple logo on the hard drive of a MacBook?

I was installing an update on my MacBook Pro mid 2012 when it crashed. Kernel Panic. I brought it to an authorized service center for repair. The following day, I got a call that the center is ...
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120 views

kernel panics possibly related to XNU and CUDA

I'm running a CUDA program on my Late 2013 model MBP running OS X 10.10.5, the GPU is NVIDIA GeForce GT 750M 2048 MB. Unexpectedly and in a non-reproducible fashion it is giving kernel panics. The ...
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Kernel Panic causing crash OSX10.10.5

So I've been having a lot of kernel panics over the past few months, and the apple store says it's not hardware. I've taken it in several times under apple care (Still covered for one more year) and ...
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Kernel Panic Bluetooth

I have been receiving kernel panics a few times in the past few months, but each time I have noticed it is when I am connected to the internet through Bluetooth PAN to my iPhone. Most recently, the ...
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Uninstall OpenZFSonOSX on OS 10.10?

I installed OpenZFSonOSX even though it is not compatible with OS X 10.10. The zfs commands are not working and make the Mac to restart immediately. I tried "uninstall-openzfsonosx.sh". It causes a ...
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131 views

Kernel Panic on Late 2012 iMac

I keep getting a Kernel Panic on my Late 2012 iMac. My log is at http://pastebin.com/AbqrgeGk if you need it. Please help. Thanks! Log imported: *** Panic Report *** panic(cpu 0 caller ...
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1answer
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MacBook Pro crashes and panic after Yosemite

I have updated from OS X 10.8 Mountain Lion to OS X 10.10 Yosemite 6 months ago and since then my Mac freezes with no reason (I need to switch off the computer). Yesterday after installing a Yosemite ...
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659 views

Possible memory corruption error

I have a Mac Yosemite version 10.10.4. Recently I've been experiencing problems with Firefox and Chrome, which both crash often. The real problem is that in the past few weeks I experienced some ...
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1answer
573 views

Kernel panic - Macbook pro 15" early 2011

I have problem with "Your computer restarted because of a problem" loop. Sometimes my Mac doesn't crash all day, but sometimes it crashes 5-10 times at day. Thank you for every advice. Kernel panic ...
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1answer
137 views

Mac crashes when using Terminal app

I'm having trouble with my MacBook Pro. Specifically, it always crashes when I try to open the Terminal app. I get the following report: Anonymous UUID: 071752AC-395C-0603-2111-894859AA762E ...
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1answer
117 views

iMac 2011 With Yosemite kernel panics several times

Our Mac has kernel panicked about 5 times today. Below is the crash log if someone could help us out, cheers in advance. > Anonymous UUID: 2FBA36C0-0496-067C-BFC9-151393EB378C > > Wed ...
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115 views

Why is my external harddrive causing a kernel panic?

I've got a external harddrive that causes a kernel panic about a minute after connecting it to my MacBook. I can't work with it because it kernel panics before I can do anything. Is this a hardware ...
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What is a Kernel Panic and what does it mean?

I have this report: Anonymous UUID: 84DCCF22-1516-5255-9602-7222ECDA9095 Tue Aug 11 20:26:13 2015 *** Panic Report *** panic(cpu 2 caller 0xffffff8028bc1cde): "launchd died\nState at Last ...
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1answer
51 views

iMac keeps restarting every couple of minutes. Any ideas which software/hardware is the culprit?

Backtrace suspected of leaking: (outstanding bytes: 1337520) 0xffffff801936bf56 0xffffff80193b392d 0xffffff80193a0cab 0xffffff80193abcfd 0xffffff80197c9475 0xffffff801984bc56 last loaded kext ...
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2answers
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Macbook Air (Yosemite) crashes while watching videos

For about a week now, my Macbook (Air early 2014) has been crashing whenever I have been using it to watch videos online (Youtube etc.) I took a look at the event logs and found a number of kernel ...
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2answers
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Background processes periodically eat up my CPU time on OS X 10.10.4, Yosemite

Periodically the CPU on my iMac Mid-2015 running OS X 10.10.4, gets used almost exclusively by: launchd: ~70% fseventsd: 12% UserEventAgent: ~40% opendirectoryd: 20% notifyd: 12% I have tried ...
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KERNEL PANIC recurring after reinstall for Macbook Pro OS X 10.6.8

We reinstalled operating system at apple genius bar due to 3-4 previous crashes. Updated and timemachine restored files but it has started crashing again. Is it a firefox problem? Has the problem been ...
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Is there an (automated) test suite to find bugs for OSX?

Apple introduced a nasty issue with OSX 10.10.3 (see also questions here and here). Some Macs with an Intel HD 4000 have random kernel panics and sometimes graphics glitches. However, the problem is ...
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1answer
437 views

Yosemite Kernel panics involving com.apple.driver.AppleUSBCDC

I have experienced 5 kernel panics over the last few months. Using a mid-2012 MacBook Pro running Yosemite 10.10.4. I have reinstalled Yosemite and have erased, repartitioned and reinstalled. I have ...
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1answer
90 views

Unable to boot (kernel panic - reboot cycle) after 10.10.4 upgrade

Macbook pro early 2011, after 10.10.4 upgrade does not boot then gives the standard "you have a problem" message, then panic message again etc. I've attached an image below: , After ⌘Command-R ...
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Kernel Panic after freeze

My Mac just froze so I turned it off and tried a restart but it didn't work. For a few seconds I saw something that made me panic because I don't understand a word of it: panic(cpu 2 caller ...