Quoting Vasile Dumitrescu (launchpad.vas...@undeva.net): > I added a rtl8139c netcard to the VM and connected through it by RDP - > no more freezes. > > It looks like kvm does not play well with virtio network cards and RDP. > > Red Hat virtio net windows driver version: 62.65.104.6500, 6/19/2013
This makes me wonder if the bug may not actually be in the virtio net driver. The source for that is at https://github.com/YanVugenfirer/kvm-guest-drivers-windows . Something like commit 9b1b81a731f722efa8df24429649b527a17bf433 might be relevant (assuming the git HEAD has this fixed, which I've not tested). -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1180777 Title: RDP traffic freeze on quiet network Status in QEMU: New Status in “qemu-kvm” package in Ubuntu: Confirmed Status in Debian GNU/Linux: New Bug description: To summarize what I think has been found so far, 1. The main symptom is that RDP connections hang after some time 2. This bug affects qemu 1.0 .. 1.6.5 3. This bug affects at least windows xp and windows 7 guests 4. Keeping another network connection open, such as vnc, prevents the RDP connection from hanging. ======================================== 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
