KVM - The Linux Kernel-Based Virtual Machine
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PCI-Passthrough Error

7 replies [Last post]
ITWorx
Offline
Joined: Jul 29 2011
Points: 3

Hi

I have been struggling with Virtualization for a while because I want my Tiger3XX Phone Card to work on a virtualized installation of Elastix. I also want to install Windows 2008 on the same machine that’s why I want to go virtual.

I downloaded openSUSE 11.4 which had KVM on it. Installed KVM and then setup Elastix as a guest and everything works fine until I add the card. At first the error was "No IOMMU Found", but I managed to fix it by adding "intel_iommu=on" on the menu.lst file under the grub folder. But now error has come up and I cant find a solution on the net.

Error starting domain: cannot send monitor command '{"execute":"qmp_capabilities"}': Connection reset by peer

Under Details:

Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/engine.py", line 909, in run_domain
vm.startup()
File "/usr/share/virt-manager/virtManager/domain.py", line 1321, in startup
self._backend.create()
File "/usr/lib64/python2.7/site-packages/libvirt.py", line 330, in create
if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
libvirtError: cannot send monitor command '{"execute":"qmp_capabilities"}': Connection reset by peer

The machine I am trying this on is a HP Proliant ML 150 G6 and it does support VT-d and is enable under BIOS.

Any suggestion on what I can do?

sl6 (not verified)
i got the same error

Hi, i'm using Scientific Linux 6.1 with the kernel 2.6.32-131.6.1.el6.x86_64 and i'm getting

[root@host]# virsh start
error: Failed to start domain openfiler
error: cannot send monitor command '{"execute":"qmp_capabilities"}': Connection reset by peer

It's been working fine until i turned SELinux off and restarted, then i got this error message. Now SELinux is re-enabled, still the same problem.

Anonymous (not verified)
I've solved my problem by

I've solved my problem by deleting the '.save' file in /var/lib/libvirt/qemu/save.

Michael (not verified)
Thanks ! That helped.

Thanks ! That helped. Michael

Anonymous (not verified)
Thank you! That helped me

Thank you! That helped me too.

Anonymous (not verified)
thanks!

deleting the '.save' file in /var/lib/libvirt/qemu/save fixed the problem for me as well!
Thank you again!

Anonymous (not verified)
Thanks

Thanks, fixed same problem for me too

Anonymous (not verified)
it dosen't help me I am still

it dosen't help me I am still seeing this problem

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