Re: [Qemu-devel] [Bug 1180777] Re: Windows 7 VM freeze on Ubuntu 12.04 KVM

[Gleb Natapov <gleb@redhat.com>]

On Fri, Sep 13, 2013 at 07:29:49PM -0000, Vasile Dumitrescu wrote:
> I also see these EXACT symptoms, using kvm (VM managed through livirt
> virsh) on Debian x64 host, guest is Windows 8, RedHat VirtIo network
> driver.
> 
Can you trace KVM [1] when hang happens next time?

[1] http://www.linux-kvm.org/page/Tracing

> rgds
> 
> ** Also affects: debian
>    Importance: Undecided
>        Status: New
> 
> -- 
> 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:
>   Windows 7 VM freeze on Ubuntu 12.04 KVM
> 
> Status in QEMU:
>   New
> Status in “qemu-kvm” package in Ubuntu:
>   Confirmed
> Status in Debian GNU/Linux:
>   New
> 
> 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
> 
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--
			Gleb.