[Bug 92176] Copy & Paste (Strg +C/Strg+V) causes hangs in Windows 7 client

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92176

Mikhail Kotelnikov <fox at woland.me> changed:

           What    |Removed                     |Added
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                 CC|                            |fox at woland.me

--- Comment #2 from Mikhail Kotelnikov <fox at woland.me> ---
Host: Debian GNU/Linux 8.2
Guest: Win7 x64, spice-guest-tools v0.100

First configuration:
  qemu-system-x86: 2.1
  libspice-server1 0.12.5

Second configuration:
  qemu-system-x86: 2.4
  libspice-server1 0.12.6

In first configuration copy-paste to atlassian hipchat, notepad++ and some
other applications in guest caused guest freeze with 100% (and more according
to top) CPU usage by qemu process on host. Once I've seen that vdagent used
100% of CPU on guest in the same situation.
Also frequently be observed situation described in bugreport.

In second configuration influence of copy-paste has reduced but main bug
remains.

Main bug (in both configurations):
In arbitary time picture in virt-viewer freezes. If try to close
virt-viewer, it shows black screen with notice in center: 'Waiting for closing
view 1' (or something similar). It may be closed only by [x]kill. After
restarting virt-viewer things proceed normally.
Some time qemu-kvm instance consumes 100% CPU and vm freezes.
First issue happens about every hour or half a hour. Second one-two
times a day during continuous vm usage.
Btw, second issue may be concerned with memory usage. I have only 2Gb of
memory dedicated to vm and chrome eats it very fast.

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