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[Bug 1395217] Re: Networking in qemu 2.0.0 and beyond is not compatible

From: Thomas Huth
Subject: [Bug 1395217] Re: Networking in qemu 2.0.0 and beyond is not compatible with Open Solaris (Illumos) 5.11
Date: Fri, 20 Nov 2020 18:49:09 -0000

The QEMU project is currently considering to move its bug tracking to another 
system. For this we need to know which bugs are still valid and which could be 
closed already. Thus we are setting older bugs to "Incomplete" now.
If you still think this bug report here is valid, then please switch the state 
back to "New" within the next 60 days, otherwise this report will be marked as 
"Expired". Or mark it as "Fix Released" if the problem has been solved with a 
newer version of QEMU already. Thank you and sorry for the inconvenience.

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

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  Networking in qemu 2.0.0 and beyond is not compatible with Open
  Solaris (Illumos) 5.11

Status in QEMU:

Bug description:
  The networking code in qemu in versions 2.0.0 and beyond is non-
  functional with Solaris/Illumos 5.11 images.

  Building 1.7.1, 2.0.0, 2.0.2, 2.1.2,and 2.2.0rc1with the following
  standard Slackware config:

  # From Slackware build tree . . . 
  ./configure \
    --prefix=/usr \
    --libdir=/usr/lib64 \
    --sysconfdir=/etc \
    --localstatedir=/var \
    --enable-gtk \
    --enable-system \
    --enable-kvm \
    --disable-debug-info \
    --enable-virtfs \
    --enable-sdl \
    --audio-drv-list=alsa,oss,sdl,esd \
    --enable-libusb \
    --disable-vnc \
    --enable-spice \

  And attempting to run the same VM image with the following command (or via 


  qemu-system-x86_64 nex4x -cdrom /dev/cdrom -name "Nex41" -cpu Westmere
  -machine accel=kvm -smp 2 -m 4000 -net nic,macaddr=$macaddress  -net 
  r0 -net dump,file=/usr1/tmp/<FILENAME> -drive file=nex4x_d1 -drive 

  Gives success on 1.7.1, and a deaf VM on all subsequent versions.

  Notable in validating my config, is that a Windows 7 image runs
  cleanly with networking on *all* builds, so my configuration appears
  to be good - qemu just hates Solaris at this point.

  Watching with wireshark (as well as pulling network traces from qemu
  as noted above) it appears that the notable difference in the two
  configs is that for some reason, Solaris gets stuck arping for it's
  own interface on startup, and never really comes on line on the
  network.  If other hosts attempt to ping the Solaris instance, they
  can successfully arp the bad VM, but not the other way around.

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