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[Qemu-devel] Super nested KVM
From: |
Richard W.M. Jones |
Subject: |
[Qemu-devel] Super nested KVM |
Date: |
Thu, 3 Jul 2014 18:34:33 +0100 |
User-agent: |
Mutt/1.5.20 (2009-12-10) |
If you have odd Intel or AMD hardware, I'd appreciate if you could
test my disk image which recursively launches nested KVM until
something breaks:
http://rwmj.wordpress.com/2014/07/03/super-nested-kvm/#content
FWIW:
* AMD FX(tm)-8320 Eight-Core Processor:
L3 guest fails to boot with
[ 30.769000] BUG: unable to handle kernel NULL pointer dereference at
0000000000000180
[ 30.769000] IP: [<ffffffff810be871>] __queue_work+0x41/0x4e0
* Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz [Sandybridge]:
L4 guest either hangs very early in boot, or is so slow that it
makes no visible progress.
There's also a TCG-only mode, but the test ran so slowly as to be
inconclusive. I might leave it going overnight.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
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- [Qemu-devel] Super nested KVM,
Richard W.M. Jones <=