Bug 1460923

Created attachment 1287180 [details]
log.network.aarch64

The XML that we are generating, from the log file formatted to
make it a bit more readable:

<?xml version="1.0"?>
<domain type="kvm" xmlns:qemu="http://libvirt.org/schemas/domain/qemu/1.0">
  <name>guestfs-qks4gse4jzbqqvn9</name>
  <memory unit="MiB">768</memory>
  <currentMemory unit="MiB">768</currentMemory>
  <cpu mode="host-passthrough">
    <model fallback="allow"/>
  </cpu>
  <vcpu>1</vcpu>
  <clock offset="utc">
    <timer name="rtc" tickpolicy="catchup"/>
    <timer name="pit" tickpolicy="delay"/>
  </clock>
  <os>
    <type machine="virt">hvm</type>
    <loader readonly="yes" type="pflash">/usr/share/AAVMF/AAVMF_CODE.verbose.fd</loader>
    <nvram>/tmp/libguestfsvSaKTy/vars.fd.1</nvram>
    <kernel>/var/tmp/.guestfs-0/appliance.d/kernel</kernel>
    <initrd>/var/tmp/.guestfs-0/appliance.d/initrd</initrd>
    <cmdline>panic=1 console=ttyAMA0 earlyprintk=pl011,0x9000000 ignore_loglevel efi-rtc=noprobe edd=off udevtimeout=6000 udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=/dev/sdb selinux=0 guestfs_verbose=1 guestfs_network=1 TERM=xterm-256color</cmdline>
  </os>
  <on_reboot>destroy</on_reboot>
  <devices>
    <rng model="virtio">
      <backend model="random">/dev/urandom</backend>
    </rng>
    <controller type="scsi" index="0" model="virtio-scsi"/>
    <disk device="disk" type="file">
      <source file="/home/git/libguestfs.autotest/client/tests/libguestfs/misc.ext2.raw"/>
      <target dev="sda" bus="scsi"/>
      <driver name="qemu" type="raw" cache="writeback"/>
      <address type="drive" controller="0" bus="0" target="0" unit="0"/>
    </disk>
    <disk type="file" device="disk">
      <source file="/tmp/libguestfsvSaKTy/overlay2"/>
      <target dev="sdb" bus="scsi"/>
      <driver name="qemu" type="qcow2" cache="unsafe"/>
      <address type="drive" controller="0" bus="0" target="1" unit="0"/>
      <shareable/>
    </disk>
    <serial type="unix">
      <source mode="connect" path="/tmp/libguestfssCsJt7/console.sock"/>
      <target port="0"/>
    </serial>
    <channel type="unix">
      <source mode="connect" path="/tmp/libguestfssCsJt7/guestfsd.sock"/>
      <target type="virtio" name="org.libguestfs.channel.0"/>
    </channel>
    <controller type="usb" model="none"/>
    <memballoon model="none"/>
  </devices>
  <qemu:commandline>
    <qemu:env name="TMPDIR" value="/var/tmp"/>
    <qemu:arg value="-netdev"/>
    <qemu:arg value="user,id=usernet,net=169.254.0.0/16"/>
    <qemu:arg value="-device"/>
    <qemu:arg value="virtio-net-pci,netdev=usernet"/>
  </qemu:commandline>

Other related packages：
libvirt-3.2.0-7.el7.aarch64
qemu-kvm-rhev-2.6.0-28.el7_3.10.aarch64

My cut and paste missed out the closing </domain> from there (it's
present in the original XML).  But the important part seems to be:

  <qemu:commandline>
    <qemu:env name="TMPDIR" value="/var/tmp"/>
    <qemu:arg value="-netdev"/>
    <qemu:arg value="user,id=usernet,net=169.254.0.0/16"/>
    <qemu:arg value="-device"/>
    <qemu:arg value="virtio-net-pci,netdev=usernet"/>
  </qemu:commandline>

which comes from this code:

  https://github.com/libguestfs/libguestfs/blob/rhel-7.4/lib/launch-libvirt.c#L1750-L1769

This XML is not generated by upstream libguestfs (which uses bridged
networking instead).  The reason it is present in RHEL 7.4 is because
we revert the following patch downstream:

  https://github.com/libguestfs/libguestfs/commit/706ec2c841cda0de58a52001b1567d2b72fdacdf

However I still think this must be a bug/missing file in qemu, or perhaps a
missing dependency.

(In reply to Richard W.M. Jones from comment #4)
> My cut and paste missed out the closing </domain> from there (it's
> present in the original XML).  But the important part seems to be:
> 
>   <qemu:commandline>
>     <qemu:env name="TMPDIR" value="/var/tmp"/>
>     <qemu:arg value="-netdev"/>
>     <qemu:arg value="user,id=usernet,net=169.254.0.0/16"/>
>     <qemu:arg value="-device"/>
>     <qemu:arg value="virtio-net-pci,netdev=usernet"/>
>   </qemu:commandline>
> 
> which comes from this code:
> 
>  
> https://github.com/libguestfs/libguestfs/blob/rhel-7.4/lib/launch-libvirt.
> c#L1750-L1769
> 
> This XML is not generated by upstream libguestfs (which uses bridged
> networking instead).  The reason it is present in RHEL 7.4 is because
> we revert the following patch downstream:
> 
>  
> https://github.com/libguestfs/libguestfs/commit/
> 706ec2c841cda0de58a52001b1567d2b72fdacdf
> 
> However I still think this must be a bug/missing file in qemu, or perhaps a
> missing dependency.

So do you need me to change the component to qemu-kvm-rhev？

Works with: qemu-kvm-rhev-2.9.0-9.el7.aarch64

I believe this is a duplicate of bug 1337510.  In any case I cannot
reproduce it with the newer qemu-kvm-rhev.  Andrea, what do you think?

I vote for duplicate as well.

Marking as duplicate.  Xiang Hua, can you try with the newer qemu,
and if you still see the problem reopen/unduplicate.

*** This bug has been marked as a duplicate of bug 1337510 ***