[Bug 1894818] [NEW] COLO's guest VNC client hang after failover

[Derek Su]

Public bug reported:

Hello,

After setting up COLO's primary and secondary VMs,
I installed the vncserver and xrdp (apt install tightvncserver xrdp) inside the 
VM.

I access the VM from another PC via VNC/RDP client, and everything is OK.
Then, kill the primary VM and issue the failover commands.

The expected result is that the VNC/RDP client can reconnect and resume
automatically after failover. (I've confirmed the VNC/RDP client can
reconnect automatically.)

But in my test, the VNC client's screen hangs and cannot be recovered no
longer. (I need to restart VNC client by myself.)

BTW, it works well after killing SVM.

Thanks.

Regards,
Derek

** Affects: qemu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1894818

Title:
  COLO's guest VNC client hang after failover

Status in QEMU:
  New

Bug description:
  Hello,

  After setting up COLO's primary and secondary VMs,
  I installed the vncserver and xrdp (apt install tightvncserver xrdp) inside 
the VM.

  I access the VM from another PC via VNC/RDP client, and everything is OK.
  Then, kill the primary VM and issue the failover commands.

  The expected result is that the VNC/RDP client can reconnect and
  resume automatically after failover. (I've confirmed the VNC/RDP
  client can reconnect automatically.)

  But in my test, the VNC client's screen hangs and cannot be recovered
  no longer. (I need to restart VNC client by myself.)

  BTW, it works well after killing SVM.

  Thanks.

  Regards,
  Derek

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