Ask Different Stack Exchange
Ask Different Stack Exchange

Questions tagged [kernel-panic]

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

See https://developer.apple.com/library/mac/technotes/tn2063/_index.html for a substantial and technical discussion what a kernel panic is and how to debug them.

514 questions
7
votes
2 answers

How can I troubleshoot Kernel Panics on my iMac

I recently started to see kernel panics on my iMac, that I believe has something to do with my hard drives. Not so sure though. How can I try to track down the cause of this error? Interval Since Last Panic Report: 286906 sec Panics Since Last…
gyurisc
  • 1,559
3
votes
3 answers

Kernel panic: com.apple.iokit.IOPCIFamily

I am having repeated kernel panics. I'm hoping someone can give me a clue. the panic looks exactly the same each time. I've pasted the entire .panic below, but here are some relevant parts, Kernel Extensions in backtrace: …
Jeffrey Blattman
  • 151
  • 1
  • 1
  • 8
3
votes
1 answer

How to spot the cause of a Kernel Panic in the problem report?

I've just got a Kernel Panic. I'm trying to find the source of the problem. I thought it could be the RAM memory but not pretty sure though. This is the report of the kernel but I'm not able to spot the problem in it: Interval Since Last Panic…
chefnelone
  • 753
3
votes
1 answer

How do I prevent a scheduled shell script containing an rsync command from causing a kernel panic?

I have a simple backup shell script that runs daily at 1:00 AM. It uses rsync to copy twelve different directories onto my Windows computer's external hard drive. Here's an example: rsync -a --delete-after --progress --stats "$HOME/Downloads"…
Nick
  • 131
  • 3
3
votes
0 answers

How to isolate causes for vague kernel panics?

After taking a short break, I came back to my system to find it was hung hard. I had to hold the power in and upon restart, discovered the following panic... yet unlike other panics I've seen and been able to diagnose properly, this is much more…
ylluminate
  • 5,311
3
votes
5 answers

What is causing a kernel panic on my macbook every day?

Below is the report. It looks like a USB device, but how can I tell which one? Wed Apr 8 15:52:28 2015 *** Panic Report *** panic(cpu 3 caller 0xffffff801594887b): "thread_invoke: preemption_level 1, possible cause: blocking while holding a…
Michelle
  • 115
  • 1
  • 9
2
votes
1 answer

Debugging MacBook Pro kernel panic few minutes after resuming from standby

Few months ago my MBP (Early2011) started to give a kernel panics after resuming from standby. This doesn't happen instantly, usually 1-10 minutes after resuming kernel panics do not follow a clear pattern I reinstalled the entire OS X 10.8.2 reset…
sorin
  • 29,875
2
votes
1 answer

Repeated kernel panic: anyone able to decipher report?

I am getting repeated kernel panics. I have run many disk repair routines using Disk Utility and Techtool (6) but still happening. It seems to happen when I am using a particular application (Sonuus i2M Editor) which is a USB Pitch to MIDI…
Paul K
  • 53
2
votes
1 answer

Kernel Panic on login and when mounting for write access (Catalina, Late 2014 iMac)

I'm absolutely stumped on this one. Background This is a late-2014 iMac 5K with 3TB fusion drive, using Apple mouse and Apple keyboard, no third-party hardware attached. The camera has been broken for years. FileVault encryption is…
Adam-E
  • 73
2
votes
2 answers

mac OS Catalina 10.15 – Watchdog Timeout Kernel Panic

In the last few days, when I shutdown my iMac, it takes a long long time, freezes, then restarts with this report – which is always basically the same. I have already reseted PRAM and SMC. If someone could help me out understand what's going on, it…
PauloP
  • 21
2
votes
1 answer

Panic Report: Zone cache element was used after free!

Can anyone explain what caused this. Happened twice, consecutively. Panic Report:
Mark Gobin
  • 21
2
votes
0 answers

Help Diagnosing this Kernel Panic Log

So... I've had about 10 kernel panics in the last 3 days... and I honestly have no idea what is causing them... if someone is able to diagnose... here's the latest... Anonymous UUID: C9FC42BF-2CCB-328A-00CB-DD3CC0E1A136 Tue Oct 1 14:21:41…
El Guapo
  • 121
2
votes
0 answers

Fixing a "Could not read LR from frame..." kernal panic

I'm having a Kernal Panic with the following error: Could not read LR from frame at 0x0000700000080d48. How can I resolve this issue? Is there a way to diagnose the particular kernal issue or faulty program? Full Log Output: Anonymous UUID: …
Donny P
  • 943
1
vote
0 answers

MacBook Air 2018 Kernel panic, can you tell me more?

from time to time my MacBook Air 2018 just shuts down and reboots. Here is one log I got: panic(cpu 1 caller 0xfffffff01afab7b4): x86 CPU CATERR detected Debugger message: panic Memory ID: 0x6 OS version: 17P4263 macOS version: 19E266 Kernel…
gurehbgui
  • 318
  • 3
  • 8
  • 18
1
vote
1 answer

Kernel panic in com.apple.iokit.IOAcceleratorFamily2

It's happening every once in a while that I get a kernel panic like the following: Anonymous UUID: 298497E3-67C5-3C3E-49A8-F58D0EF87D19 Wed Sep 5 14:31:51 2018 *** Panic Report *** panic(cpu 1 caller 0xffffff800d78776f): Kernel trap at…
Valerio Santinelli
  • 139
1
2