[Qemu-devel] [Bug 419590] Re: kvm core dump on hotplug (pci_add)

[Aurelien Jarno]

** Changed in: qemu
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/419590

Title:
  kvm core dump on hotplug (pci_add)

Status in QEMU:
  Fix Released
Status in “qemu-kvm” package in Ubuntu:
  Fix Released

Bug description:
  Binary package hint: qemu-kvm

  I was running a jaunty kvm guest with the following command line:
  $ kvm -m 512 -hda jaunty-desktop-i386.img \
     -hdb jaunty-desktop-i386-swap.img -boot c \
     -net nic,vlan=0 -net 
user,vlan=0,hostfwd=tcp:127.0.0.1:59000-:5900,hostfwd=tcp:127.0.0.1:2222-:22

  jaunty guest was stock jaunty x86 desktop install.

  I saw the following failure when trying to test pci_add/hotplug of scsi 
device or network device per [1].  Both
   'pci_add 0 nic model=e1000' and
   'pci_add 0 storage file=/tmp/my.img'
  cause:
   | kvm: /build/buildd/qemu-kvm-0.11.0~rc1/hw/pci.c:1029: pci_qdev_init: 
Assertion `pci_dev' failed.
   | Aborted (core dumped)

  I have no reason to believe the guest was at all involved.  I was
  attempting to test a fix for bug 364916.

  $ apt-cache policy qemu-kvm
  qemu-kvm:
    Installed: 0.11.0~rc1-0ubuntu11
    Candidate: 0.11.0~rc1-0ubuntu11
    Version table:
   *** 0.11.0~rc1-0ubuntu11 0
          500 http://us.archive.ubuntu.com karmic/main Packages
          100 /var/lib/dpkg/status
  $ lsb_release -rd
  Description:   Ubuntu karmic (development branch)
  Release: 9.10

  --
  [1] 
http://www.linux-kvm.org/page/Hotadd_pci_devices#Use_QEMU_monitor_to_hot_add_devices

  ProblemType: Bug
  Architecture: amd64
  Date: Wed Aug 26 20:24:52 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: LENOVO 7417CTO
  Package: qemu-kvm 0.11.0~rc1-0ubuntu11
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcCmdLine: root=UUID=3afd5091-ec29-41d5-85fd-cfef14bdb6e6 ro quiet splash
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.31-5.24-generic
  SourcePackage: qemu-kvm
  Uname: Linux 2.6.31-5-generic x86_64
  dmi.bios.date: 04/17/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7UET70WW (3.00 )
  dmi.board.name: 7417CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: 
dmi:bvnLENOVO:bvr7UET70WW(3.00):bd04/17/2009:svnLENOVO:pn7417CTO:pvrThinkPadT400:rvnLENOVO:rn7417CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 7417CTO
  dmi.product.version: ThinkPad T400
  dmi.sys.vendor: LENOVO