A kernel panic happens when the Linux (or other UNIX) kernel detect fatal errors from which it cannot recover.

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What is a kernel panic?

I know that this sounds like a LMGTFY question but i thought i'd ask it so that google actually turns up (more) good results. What is it?
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Kernel Trap - Divide by Zero

I am currently using a 2011 iMac running OS X Lion. We are constantly running into this error which is causing the machine to error and force us to shutdown. The 2nd line of the error is the most ...
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On OS X, what's a double panic?

Can anyone offer a relatively simple explanation of how a double panic differs from other types of kernel panic on a Mac? Simple as in … I'm not a developer, but I wish to understand these things a ...
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Kernel panic booting CentOS 5 image in VirtualBox

I'm using VirtualBox, and have a vdi. It works fine on the virtual machine I originally configured for it, but if I clone it (with VBoxManage clonehd) or just copy it, create a new VM and boot it, I ...
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Mac OS X Leopard Kernel Panics getting absurd

Today Mac OS X kernel panicked twice on me. The first time, I got this log. The second time, I got this log. A few minutes ago, iTunes started sounding blocky, after quitting FireFox everything went ...
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Fedora 15 - Kernel Panic not syncing: VFS: Unable to mount root on unknown-block (0,0)

Fast to the point.. I have installed on my dystem a copy of Fedora 15 and Ubuntu 11.04. I first installed ubuntu on /dev/sda5 and grub2 was instaled at the begining of /dev/sda. Next i installed ...
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My Retina MacBook Pro just had a kernel panic while browsing, what caused it to crash?

I just got a Retina MacBook Pro and this is my second day of using it. I was just browsing the internet and a message popped up saying Your computer was restarted because of a problem … along ...
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1answer
302 views

Machine Check Exception reported by kernel

I built a new computer: Intel Core i7 4770K Gigabyte Z87N-WIFI Samsung 840 Evo S x2 (in RAID 0) 450w Corsair RM 80Plus Dark Rock Pro 3 Cooling Kingston 1600 DDR3 NO DEDICATED GPU Operating System: ...
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182 views

Many 64-bit linux guests kernel panic on boot

--Updates posted - scroll down-- Problem: ASUS R510D virtualization incompatibility. Machine specifications support AMD-V. System is stock: - Windows 8 home upgraded to 8.1 home - Quadcore 64-bit AMD ...
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1answer
452 views

Kernel panic on boot

Last week I installed SL6.2 on my tower using the LiveCD iso and unetbootin without issue. I was taking my time configuring it since it was my first real jump into linux. I ran into problems when I ...
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MacBook Pro kernel panics

My laptop has been acting up recently. It's seemed especially slow, video and audio has been very jittery, and it seems unable to do simple stuff like playback YouTube videos without jitter. This ...
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1answer
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buildroot rootfs on arm board

After building buildroot with Kernelimage and rootfs (jffs2) i flashed them to my board. bootargs set to: mem=64M console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=jffs2 Now when i boot i get ...
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Macbook Pro Kernel IO errors - Freezes, Extremely slow Boot

Having kernel IO errors in the console, extremely slow boots, and reproducible freezes. Tech Specs: Macbook Pro Early 2008 4 GB ram 500 GB Seagate Momentus XT HDD/SSD hybrid drive (installed late ...
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Kernel Panic on Mac OS X: What to do?

My brand new MacBook shows a kernel panic message. Does anybody have some suggestions on how to resolve that problem? What is the first thing I should do (I have already updated but nothing). What is ...
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5answers
346 views

Is it my motherboard?

Early this week my home server (a Linux machine) threw a kernel panic. Yesterday is happened a couple of times. Then all of a sudden, when I plugged a USB stick in to run a memory test, the monitor ...
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1answer
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Permission denied when setting values in sysctl on Ubuntu 12.04

I am trying to configure my Ubuntu 12.04 VPS (OpenVZ) to reboot when it runs out of memory. To do this I have added following lines to my "/etc/sysctl.conf" file. vm.panic_on_oom = 1 kernel.panic = ...
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1answer
394 views

Do not automatically restart on system failure

I need to know: how do not automatically restart GNU/Linux after a critical system failure (kernel panic). For some reason the pc is rebooted, actually throws the error screen Reboot just moments ...
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4answers
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What do I do when I get a Linux kernel bug?

I just bought a tiny computer called a fit-pc2 which came with a somewhat customized Ubuntu 9.10 installation. uname -a reports: Linux 2.6.31-34-fitpc2 #7 SMP Thu Apr 22 17:43:26 IDT 2010 i686 ...
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1answer
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Likely Kernel Panic, possible HDD Failure?

On Monday, during regular working on my Ubuntu 12.10 powered Dell Vostro 3300 laptop, the OS crashed all of a sudden, and I've been left with a black background screen with text that mostly consisted ...
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13" MacBook Pro gets daily kernel panics

My software is OS X Lion 10.7.4 and I've reinstalled it 4 or 5 times to try to solve the kernel panic problems. It's better now, but still unstable. It's a Core i7 2.8 GHz (dual core) with 8 GB RAM ...
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How do I reinstall OSX with panic error (can't boot into OSX, keeps giving kernel / panic error)

I can't boot into OSX. I've tried everything to fix the panic / kernel error, but no luck. Don't think it is a hardware issue because this happened after I did a software update. How do I do a clean ...
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874 views

What is “errno 34” when booting Mac OSX 10.6?

My mother's Mac Pro running Snow Leopard recently crashed on startup. I'm trying to help her fix it but have no idea where to start. She gets the following error screen: Text: panic(cpu 2 caller ...
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Kernel panic from Linux Mint guest in VirtualBox: “Attempted to kill init!”, “Some program might be trying to access hardware directly”

I have a Asus X201E netbook with preinstalled Windows 8 64 bit. I wanted to install there Linux on Virtual Machine. I installed Virtualbox 4.3.0, downloaded newest Mint - Mint 15 32 bit. So, my host ...
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any idea what type of error this is - Machine check / Kernel Panic

I have been getting the following problem running Ubuntu 12.10. Basically, it freezes completely, doesn't respond to keyboard or mouse, CAPS won't change and alt+sys req+REISUB doesn't do anything. ...
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1answer
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VirtualBox Kernel panic

I have been running VirtualBox for some weeks with no problems. Now when I start it up I get this Kernel panic - not syncing: Attempted to kill the idle task! atkbd serio0: Spurious ACK on ...
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626 views

Kernel panic trying to install Debian Linux on Dell computer

When I try to install Debian Linux (newest stable as of 6.2.2013, x64) on a Dell OptiPlex 740 I keep getting this error message right after I choose "Install" from the main menu (the hdd is empty): ...
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616 views

Macbook kernel panic, esp. during DLs, kernel_task causing page fault

I've owned a 2010 13" Macbook for a little over a year and throughout that time have often downloaded files from sites like MediaFire and RapidShare without any problems. However in the past few ...
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Ubuntu Kernel Panic on Inserting Network Cable

I've been having a recurring kernel panic with my Ubuntu 9.04 installation (see other posts by me). Today, I was fiddling around trying to get some cable attached when the system panicked. Looking ...
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Kernel Panic every time I open a print queue

Every time I open any printer queue I get a kernel panic and have to reboot. It's quite frustrating. I've tried removing/adding printers, clearing all caches with Onyx, repairing permissions, all ...
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Can't boot from any source

I recently tried to install the Windows 10 developer preview on my laptop. The installer seemed to hang immediately after I selected my install partition, but I left it for about an hour to make sure ...
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Getting kernel panic on Mac OS Snow Leopard by Hazard.iso on Windows 8 and VirtualBox [closed]

I am trying to install Mac OS on Windows 8.1 Pro x64. And I am getting some error. My requirements for Mac OS on VirtualBox: Ram=1934 Mb Cpu=2 Gpu=128 Mb Acceleration=3B Sata=20 GB
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819 views

OS X - GPU Panic

For half a year, I've been experiencing random freezes/reboots on my MacBook Pro Retina Mid 2012 model. My current OS is OS X Yosemite, but I started experiencing the issue in the Mavericks era. The ...
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1answer
931 views

Bad SATA cable suddenly? (MacBook Pro mid 2012)

OS X 10.9.2 Story SSD crashed due to kernel panic (Crucial M4). Data was still on it when I plugged it in via USB. Wiped and tried to reinstall via Time Machine, extremely slow transfer rate (est. ...
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Kernel panics in FreeBSD 9.1 virtualbox

I'm regularly encountering a kernel panic on my FreeBSD 9 laptop. I have installed virtualbox host and trying to run CentOS as guest. When perform "yum repolist" guest crash's my freebsd host. Here ...
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602 views

ata failed command: READ DMA on virtualized hard drive under ESXi

I've got a CentOS 6 webserver running in a VM on ESXi 5. After about 133 days of uptime I rebooted it. Now it won't boot. It hangs here for a while: Then finally: If this were a real hard drive, ...
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682 views

Kernel panic and keyboard led flashing

My server recently just froze. I was unable to ping it, It did not respond to any keystrokes at all and the caps lock and scroll lock was flashing in unison with a steady off-on-off-on rate approx. ...
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Repeating Kernel panics and Hardware test hangs in Macbook Pro 15" Mid 2012 (Lion)

Four weeks ago, I got about 20 Kernel panics on my new MacBook Pro 9,1 (15", Mid 2012, i7 2,3 Quadcore with 8GB RAM and 512 GB SSD) with OS X Lion 10.7.5 and all available updates installed. They are ...
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299 views

Reboot the system from an initrd without causing a kernel panic

i want to start a linux kernel over pxe boot, load a very small initram, do some jobs there and reboot the machine. so my init script looks like this: #!/bin/sh -e # used for initramfs export PATH . ...
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368 views

Where and How should a Kernel Panic be reported?

I've Archlinux installed on my laptop Fujitsu Amilo Pi 2*** and I cannot find any log at /var/log that has the StackTrace. The Kernel panics ALWAYS when I try to modify screen brightness. Where are ...
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How to resolve Kernel Panic error after upgrading F15 to F17 using Preupgrade?

I tried to upgrade my Fedora 15 to Fedora 17 directly using Preupgrade. Everything went smooth and the updates were installed. Grub2 screen came up after the restart. When I chose to boot F17, I got a ...
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Kernel panic involving an unknown_bootoption maybe an underlying error that stall the processor

My server (home hosting) was working correctly until a weird kernel panic appear. It's an old computer (1 Go of memory only) and it's running on Ubuntu 8.04 LTS. I can login, but after a few minutes, ...
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Use initrd as root filesystem for network boot

I'm creating a stand-alone set of netboot images based on a LinuxFromScratch installation (7.0, kernel 3.1.0). I want to deploy that image to many diskless clients, but NFS is in my situation not an ...
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995 views

Get details / solve issue with a kernel panic?

I have a Lenovo T430 running Linux Mint 13 (MATE): joseph:~$ uname -a Linux joseph-T430-LM 3.2.0-23-generic #36-Ubuntu SMP Tue Apr 10 20:39:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux I installed ...
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ArchLinux kernel panic on boot

So I got home today to find that my KDE login screen would not let me log in. It said the authentication process failed or something and I needed to terminate the screen lock process manually. So I go ...
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Mac OS X kernel panic after TM restore

I changed my HD in my MacBook Pro, and restored from Time Machine backup. Now I keep getting kernel panic error everytime I restart. I booted from the DVD and ran a few tests, noticed that HD and ...
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Error in kernel 2.6.32 compilation and stable kernel 2.6.32 source needed for customization

I am using Ubuntu 10.04 LTS with kernel 2.6.32-21-generic , and Ubuntu 10.04.4 LTS with kernel 2.6.32-38-generic. While I am trying to compile the source for both kernel version - 2.6.32-21-generic ...
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serial console output goes away while booting

I added console=ttyS0,57600n8 to my kernel command line. I get the normal boot messages until this [ 5.123106] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null) Begin: ...
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1answer
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Mac (PowerPC G5) gets kernel panics when booting off of installation disks

I've ran disk utility's disk verify on Mac OS 10.4 on a PowerPC G4, and it told me the computer's volume should be repaired. I lost the install disks for now, so I booted it off a Tiger installation ...
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166 views

System will only boot into a Live CD with core disabled in BIOS and ACPI off

I have a system that was running a Q6600 and Windows 7 RC. It crashed last night into a BSOD with a MACHINE_CHECK_EXCEPTION. Now it does that every time it boots into Windows. I tried using my ...
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How to run update-initramfs from bootable usb?

My computer froze during an upgrade from ubuntu 12.04 to 14.04. This resulted in a kernel panic upon reboot. "/sbin/init: relocation error: /lib/i386-linux-gnu/librt.so.1: symbol__clock_nanosleep, ...