﻿id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
17661	iMac High Sierra - host kernel panic when adding load to guest	codekunst		"Steps to reproduce: Create a simple Virtualbox with vagrant:

{{{
Vagrant.configure(""2"") do |config|
  config.vm.box = ""bento/ubuntu-16.04""
  config.ssh.forward_agent = true
  config.vm.network :private_network, ip: ""192.168.91.21""
  config.vm.provider ""virtualbox"" do |v|
    v.name = ""maschinenring test""
    v.customize [""modifyvm"", :id, ""--memory"", ""4096""]
  end
end
}}}

ssh into it and install the stressapptest

{{{
sudo apt-get install stressapptest
}}}

Runn the stressapptest with

{{{
stressapptest -s 9000 -m 8 -C 8 -W --findfiles -i 2 -M 4500
}}}

Wait for one to two hours untill the host system rects with a cernel panic. I have also attached three panic reports. For me they it looks like the vm just create some random errors in the kernel memory space. I reproduced this bug on three iMacs. All software was up to date , the iMacs do not crash in normal usage or with load testing on the host system.

I haven't seen this happening before the upgrade from Sierra to High Sierra.

Softweare Versions:
* High Sierra version: 10.13.3 (17D102)
* Virtualbox: 5.2.8
* Vagrant: 2.0.3

As the test Version of Virtualbox on https://www.virtualbox.org/wiki/Testbuilds is linking to https://www.virtualbox.org/download/testcase/VirtualBox-5.2.9-121224-OSX.dmg and this gives me a 404 I was not able to test it with the latest Test version release.

It looks like this Problem is spcific to the iMac as I was not able to reproduce it on MacBooks.

Some data from my Host OS:
{{{
Hardware-Übersicht:

  Modellname:	iMac
  Modell-Identifizierung:	iMac14,2
  Prozessortyp:	Intel Core i5
  Prozessorgeschwindigkeit:	3,2 GHz
  Anzahl der Prozessoren:	1
  Gesamtanzahl der Kerne:	4
  L2-Cache (pro Kern):	256 KB
  L3-Cache:	6 MB
  Speicher:	16 GB
  Boot-ROM-Version:	IM142.0123.B00
  SMC-Version (System):	2.15f7
  Seriennummer (System):	DGKLQ07LF8J9
  Hardware-UUID:	4328169B-16AA-518C-B249-7CDD6179774A
}}}
"	defect	new	other	VirtualBox 5.2.8		iMac, kernel panic, load		Linux	Mac OS X
