[Qemu-devel] [Bug 453617] Re: kvm hangs at 100% cpu when connecting to forwarded ports (when listed incorrectly on the command line)

[Thomas Huth]

Is there still an issue left here with upstream QEMU?

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

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https://bugs.launchpad.net/bugs/453617

Title:
  kvm hangs at 100% cpu when connecting to forwarded ports (when listed
  incorrectly on the command line)

Status in QEMU:
  Incomplete
Status in qemu-kvm package in Ubuntu:
  Fix Released
Status in qemu-kvm source package in Lucid:
  Fix Released

Bug description:
  Binary package hint: qemu-kvm

  If kvm is started using two separate "-net user,hostfwd=<forwarding
  rule>" arguments to forward ports from the host to the client, it
  won't complain, but will return a connection refused error and hang at
  100% cpu when trying to connect to either forwarded port.

  However, if kvm is started with the hostfwd rules combined together
  into a single "-net user" argument, it works fine.

  As an example, this command line doesn't generate any warnings or
  errors, but causes kvm to hang for me:

  kvm -net nic -net user,hostfwd=tcp:127.0.0.1:8888-:80 -net
  user,hostfwd=tcp:127.0.0.1:2222-:22 -m 128 -smp 1 -drive
  file=disk0.qcow2

  ... but this command line works fine:

  kvm -net nic -net
  user,hostfwd=tcp:127.0.0.1:8888-:80,hostfwd=tcp:127.0.0.1:2222-:22 -m
  128 -smp 1 -drive file=disk0.qcow2

  ProblemType: Bug
  Architecture: amd64
  Date: Fri Oct 16 17:19:59 2009
  DistroRelease: Ubuntu 9.10
  KvmCmdLine: Error: command ['ps', '-C', 'kvm', '-F'] failed with exit code 1: 
UID        PID  PPID  C    SZ   RSS PSR STIME TTY          TIME CMD
  MachineType: Sony Corporation VGN-SZ650N
  NonfreeKernelModules: nvidia
  Package: kvm (not installed)
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcCmdLine: root=UUID=3ee4953e-48f0-497c-ae78-18cbb18cfef8 ro quiet splash
  ProcEnviron:
   LANGUAGE=en_US.UTF-8
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.31-14.47-generic
  SourcePackage: qemu-kvm
  Uname: Linux 2.6.31-14-generic x86_64
  dmi.bios.date: 07/12/2007
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: R0081S5
  dmi.board.asset.tag: N/A
  dmi.board.name: VAIO
  dmi.board.vendor: Sony Corporation
  dmi.board.version: N/A
  dmi.chassis.type: 10
  dmi.chassis.vendor: Sony Corporation
  dmi.chassis.version: N/A
  dmi.modalias: 
dmi:bvnPhoenixTechnologiesLTD:bvrR0081S5:bd07/12/2007:svnSonyCorporation:pnVGN-SZ650N:pvrJ002VXGP:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
  dmi.product.name: VGN-SZ650N
  dmi.product.version: J002VXGP
  dmi.sys.vendor: Sony Corporation

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