[Spice-devel] Possible Windows vdagent problems

[John A. Sullivan III]

On Tue, 2011-07-05 at 12:31 +0300, Arnon Gilboa wrote:
> John A. Sullivan III wrote:
> > On Tue, 2011-07-05 at 09:44 +0300, Arnon Gilboa wrote:
> >   
> >> Hi John,
> >> See my comments below.
> >> Arnon
> >>
> >> John A. Sullivan III wrote:
> >>     
> >>> Hello, all.  I'm spinning this off of the "Unfair Comparisons with RDP"
> >>> thread as that one is getting a bit long.  However, in it, Yaniv
> >>> identified that we were not using vdagent in our Windows guest based
> >>> upon the packet traces we submitted.  That sounded plausible as we have
> >>> noticed the agent being quite unstable.  We are often unable to connect
> >>> or the session seems to die.  We then connect as administrator via RDP
> >>> and restart the RHEV Spice Agent and all is well again.
> >>>   
> >>>       
> >> Can you please be more specific with regards to "agent being quite 
> >> unstable"?
> >> Please describe the problems, and we'll try to solve them.
> >>     
> >
> > Alas, there is not more than I have already said.  Often, when we try to
> > access the guest via SPICE, we simply get a black screen and then a
> > connection timeout.  We connect to the guest via RDP as admin, restart
> > RHEV Spice Agent service and we are then able to login.  Every once in a
> > while, the SPICE client stops responding.  We restart the RHEV Spice
> > Agent service as described and we are now able to work again.  There is
> > nothing in event logs to indicate there was a problem.
> >
> >   
> Try disabling power saving / sleep in your guest and see if it still 
> reproduced.
> In case it still happens, please send your %windir%\temp\vdservice.log & 
> %windir%\temp\vdagemt.log files.
> >> <snip>> So then I thought our qemu configuration must be off or the needed
> >>     
<snip>
Alas, it has happened again.  I was not able to open a spice session -
just a black screen followed by "Error: unhandled exception: vdagent
timeout".  I double checked the Power Settings while unable to login and
they were indeed on high performance with suspend video set to never.

I can also add that the keyboard was extremely lagged in SPICE.  I was
using it without disabling effects so I exited and went in via RDP and
noticed no lag.  I also ran background pings to see if we had problems
on the connection and it was quite healthy.  I then tried SPICE again
disabling all effects.  That's when I noticed I could not get in.  I
restarted RHEV Spice Agent and was now able to get in with effects
disabled but it was still very lagged.  It had clearly disabled effects;
the difference in the font rendering was quite noticeable.  I exited
again and tried via RDP and there was no lag.  I then tried connecting
again and once again got only the black screen.

It was at that point that I grabbed the attached logs.  I then restarted
the agent again, went in via SPICE without disabling effects and the
response is much better now although keyboarding is still noticeably
less crisp than RDP.

The logs look like they do not contain sensitive information so I have
attached them herewith.  Thanks - John
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