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

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

[Serge Hallyn]

** Also affects: qemu
   Importance: Undecided
       Status: New

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

[Hector Perez]

Hi,

I reported the #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 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

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

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

[f3a97]

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 <heperez@hotmail.com> wrote:

> Hi,
>
> I reported the #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
>

-- 
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

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

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

[f3a97]

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 <stefano.doni@gmail.com> 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 <heperez@hotmail.com> 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
>>
>
>

-- 
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

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

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

[Vasile Dumitrescu]

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.

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

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1180777/+subscriptions

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

[Gleb Natapov]

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
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/qemu/+bug/1180777/+subscriptions

--
			Gleb.

[Qemu-devel] [Bug 1180777] Re: RDP traffic freeze on quiet network

[Serge Hallyn]

** Summary changed:

- Windows 7 VM freeze on Ubuntu 12.04 KVM
+ RDP traffic freeze on quiet network

** Description changed:

+ 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

-- 
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

[Qemu-devel] [Bug 1180777] Re: RDP traffic freeze on quiet network

[Hector Perez]

Hi f3a97,  did you tried to connect via VNC when the freeze situation
occurs?

This method works as a a workaround to defreeze my windows VM.

-- 
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

[Qemu-devel] [Bug 1180777] Re: RDP traffic freeze on quiet network

[Hector Perez]

Since a couple of weeks ago, we started to reboot the VM diary.  With
this way, the problem occurs very less. We have counted only twice in
this period.

-- 
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

[Qemu-devel] [Bug 1180777] Re: RDP traffic freeze on quiet network

[Vasile Dumitrescu]

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

I left the RH adapter on the VM, I just connect via RDP through the
rtl8139c network card.

-- 
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

Re: [Qemu-devel] [Bug 1180777] Re: RDP traffic freeze on quiet network

[f3a97]

Thanks for the tip Dumitrescu,

I'll rive it a try AMD report here che result.

Regards
 Il 29/set/2013 14:50 "Vasile Dumitrescu" <launchpad.vasile@undeva.net> ha
scritto:

> 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
>
> I left the RH adapter on the VM, I just connect via RDP through the
> rtl8139c network card.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> 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
>

-- 
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:
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Re: [Qemu-devel] [Bug 1180777] Re: RDP traffic freeze on quiet network

[Serge Hallyn]

Quoting Vasile Dumitrescu (launchpad.vasile@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:
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Re: [Qemu-devel] [Bug 1180777] Re: RDP traffic freeze on quiet network

[f3a97]

Hi,

I've double checked my conf, I can confirm I'm not using virtio but
standard Win 7 drivers. (please see my VM conf that I posted some time ago).

So it's not definitely a virtio-specific issue.


On 3 October 2013 16:31, Serge Hallyn <1180777@bugs.launchpad.net> wrote:

> Quoting Vasile Dumitrescu (launchpad.vasile@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 subscribed to the bug
> report.
> 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
>

-- 
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:
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[Qemu-devel] [Bug 1180777] Re: RDP traffic freeze on quiet network

[Thomas Huth]

Triaging old bug tickets... can you still reproduce this issue with the
latest version of QEMU? Or could we close this ticket nowadays?

** Changed in: qemu
       Status: New => Incomplete

-- 
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:
  Incomplete
Status in qemu-kvm package in Ubuntu:
  Confirmed
Status in Debian:
  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

[Qemu-devel] [Bug 1180777] Re: RDP traffic freeze on quiet network

[Thomas Huth]

** Changed in: qemu-kvm (Ubuntu)
       Status: Confirmed => Incomplete

** Changed in: debian
       Status: New => Incomplete

-- 
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:
  Incomplete
Status in qemu-kvm package in Ubuntu:
  Incomplete
Status in Debian:
  Incomplete

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

[Qemu-devel] [Bug 1180777] Re: RDP traffic freeze on quiet network

[Launchpad Bug Tracker]

[Expired for QEMU because there has been no activity for 60 days.]

** Changed in: qemu
       Status: Incomplete => Expired

-- 
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:
  Expired
Status in qemu-kvm package in Ubuntu:
  Expired
Status in Debian:
  Incomplete

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

[Qemu-devel] [Bug 1180777] Re: RDP traffic freeze on quiet network

[Launchpad Bug Tracker]

[Expired for qemu-kvm (Ubuntu) because there has been no activity for 60
days.]

** Changed in: qemu-kvm (Ubuntu)
       Status: Incomplete => Expired

-- 
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:
  Expired
Status in qemu-kvm package in Ubuntu:
  Expired
Status in Debian:
  Incomplete

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

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