[Spice-devel] Spice agent and LXC

[Christophe Fergeau]

On Fri, Nov 28, 2014 at 12:03:59AM -0600, Charles Ricketts wrote:
> Despite my problem with building within my VM environment, I went ahead
> and attempted a Fedora LXC+Spice configuration. I'm happy to report it
> was successful as well. The only change that had to be made was adding
> the -f argument to the Xspice script to keep spice-vdagentd from
> attempting ioctl ops on the uinput pipe created by the QXL driver. I'm
> not sure why I didn't see this before, looks like I had mistakenly
> forgotten to use --prefix=/usr on the vdagent source, so I was using the
> distribution-provided version which doesn't have the -f option at all
> and apparently doesn't print the "improper ioctl for device" error.
> However, upon ensuring I was using the git versions of the vdagents and
> the -f flag was added in Xspice, I was again successful!
> 
> Hooray!
> 
> Well, if nothing else, I hope this discussion helps somebody else
> looking to accomplish the same task. And, even if it wasn't intended,
> props to the developers for having the foresight in making the QXL
> driver/Xspice and the agents flexible enough to use non-character
> devices and therefore eliminating the reliance on a virtualized
> environment. You guys rock!

Well, thanks a lot for your patience and all the investigation you made!
I'm still surprised it segfaults with the ubuntu packages. What version
of spice-server is being used there? A backtrace with debugging symbols
would still be great, I think you'd need to install the corresponding
debug packages (I forgot how to do that on ubuntu), and then try to get
a coredump or to run Xspice in gdb.

Christophe
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