[Pkg-libvirt-maintainers] Bug#665329: Bug#665329: closed by Guido Günther <agx at sigxcpu.org> (Re: Bug#665329: libvirt-bin: Starting a kvm virtual machine with a serial/parallel chardevice attached to a pty fails with 'chardev: opening backend "pty" failed')

[Guido Günther]

On Sat, Mar 24, 2012 at 12:59:32AM +0100, Sebastian Schrader wrote:
> No, I'm definitly using qemu:///system to connect. Any tips how to
> monitor the permission denied errors to find out what was actually tried
> to acess would be appreciated.
You can fire up libvirtd with 

strace -f -ooutfile -s2048 libvirtd 

and look for EPERM in the outfile. Also have a loot at /dev/pts after
the vm start:

The pts used should belong to the libvirt-qemu user. The Debian wiki
also has a page about debugging libvirt related problems.

Cheers,
 -- Guido