Comment 19 for bug 1180777

Hi,

Eventually I've been able to reproduce the hang.

Just to recap the experiment: I have recorded network traffic during RDP
connection hangs. The result is that the VM has do not experience total
network loss: network traffic continues to flow (tcpdump from the host on
ports other than 3389).

On 5 September 2013 15:22, Stefano Doni <email address hidden> wrote:

> Hi Hector,
>
>
> My network configuration is different than yours - it is not bridged.
> Perhaps this might help to diagnose the issue?
>
>
> I'm now trying to sniff network traffic generated by the VM and see what
> happens during RDP hangs: does it still poll outside servers (i.e. google
> drive) or will become disconnected?
>
>
> I'll report the results, stay tuned.
>
>
> On 19 August 2013 00:42, Hector Perez <email address hidden> wrote:
>
>> Hi,
>>
>> I reported the #1212051 (https://bugs.launchpad.net/ubuntu/+source/qemu-
>> kvm/+bug/1212051<https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/1212051>)
>> bug with Windows XP, but reading this case i think it
>> could be the same issue.
>>
>> I connect via RDP to my windows XP VM and after a while it seems to
>> freeze, then, I connect via VNC an without doing anything the
>> communications are restored between the VM and the outside world. So i
>> can connect again with RDP.
>>
>> Even more, if i leave an open connection with VNC (minimized because is
>> more slow than RDP), connecting via RDP has no trouble and no problem of
>> freeze (lost of communications) occurs.
>>
>> f3a97, Could you do this test and tell if you have the same experience
>> than i?, If so, my bug is the same of this.
>> Thanks.
>>
>> --
>> You received this bug notification because you are subscribed to the bug
>> report.
>> https://bugs.launchpad.net/bugs/1180777
>>
>> Title:
>> Windows 7 VM freeze on Ubuntu 12.04 KVM
>>
>> Status in QEMU:
>> New
>> Status in “qemu-kvm” package in Ubuntu:
>> Confirmed
>>
>> Bug description:
>> Hi,
>>
>> I have recently setup a Windows 7 VM on KVM and started using it
>> through remote desktop.
>>
>> What happens is that, after some hours of usage, the remote desktop
>> connection freezes. I thought it was a remmina bug, as the it was
>> enough to kill and restart it to successfully connect again to the VM.
>>
>> However, today I've switched to a different RDP client (2X Client
>> chromium app) and the freeze just happened again!
>>
>> Some information:
>> - the host and the VM are completely idle when the freeze occurs
>> - I've tried sniffing the network packets toward the RDP port during
>> the freeze and found that the client is sending packets but no packet is
>> sent back
>>
>> Could this be a KVM issue? How can I further debug this one (I expect
>> the freeze to happen again...)?
>>
>> ProblemType: Bug
>> DistroRelease: Ubuntu 12.04
>> Package: kvm 1:84+dfsg-0ubuntu16+1.0+noroms+0ubuntu14.8
>> ProcVersionSignature: Ubuntu 3.2.0-41.66-generic 3.2.42
>> Uname: Linux 3.2.0-41-generic x86_64
>> ApportVersion: 2.0.1-0ubuntu17.2
>> Architecture: amd64
>> Date: Thu May 16 14:12:40 2013
>> MachineType: Hewlett-Packard HP ProBook 4520s
>> MarkForUpload: True
>> ProcEnviron:
>> TERM=xterm
>> PATH=(custom, no user)
>> LANG=en_US.UTF-8
>> SHELL=/bin/bash
>> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-41-generic
>> root=UUID=D2E20BC3E20BAAB5 loop=/hostname/disks/root.disk ro quiet splash
>> vt.handoff=7
>> SourcePackage: qemu-kvm
>> UpgradeStatus: No upgrade log present (probably fresh install)
>> dmi.bios.date: 08/26/2010
>> dmi.bios.vendor: Hewlett-Packard
>> dmi.bios.version: 68AZZ Ver. F.0A
>> dmi.board.name: 1411
>> dmi.board.vendor: Hewlett-Packard
>> dmi.board.version: KBC Version 57.30
>> dmi.chassis.type: 10
>> dmi.chassis.vendor: Hewlett-Packard
>> dmi.modalias:
>> dmi:bvnHewlett-Packard:bvr68AZZVer.F.0A:bd08/26/2010:svnHewlett-Packard:pnHPProBook4520s:pvr:rvnHewlett-Packard:rn1411:rvrKBCVersion57.30:cvnHewlett-Packard:ct10:cvr:
>> dmi.product.name: HP ProBook 4520s
>> dmi.sys.vendor: Hewlett-Packard
>>
>> To manage notifications about this bug go to:
>> https://bugs.launchpad.net/qemu/+bug/1180777/+subscriptions
>>
>
>