[Qemu-devel] [Bug 1685242] [NEW] ovmf hangs at efi with virtio-net memory hotplug

[flumm]

Public bug reported:

with qemu 2.9 it hangs at the efi stage when memory-hotplug is enabled
and it has a virtio-net devices

the ovmf images where compiled from https://github.com/tianocore/edk2
(current master)

reproducer:

qemu-system-x86_64 -drive
'if=pflash,unit=0,format=raw,readonly,file=./OVMF_CODE.fd' -drive
'if=pflash,unit=1,format=raw,file=./my_OVMF_VARS.fd' -smp 1 -vga std
-netdev 'type=tap,id=mynet' -device 'virtio-net-pci,netdev=mynet'
-display sdl -nodefaults -m 'size=1G,slots=256,maxmem=1024G'

interestingly, it works when you do the following:

- omit the virtio-net-pci device
- use seabios
- use less maxmem, e.g. 512G

qemu was compiled from source (v2.9.0) with following options:

./configure --target-list=x86_64-softmmu --disable-xen --enable-gnutls 
--enable-sdl --enable-linux-aio --enable-rbd --enable-libiscsi 
--disable-smartcard --audio-drv-list="alsa" --enable
-spice --enable-usb-redir --enable-glusterfs --enable-libusb --disable-gtk 
--enable-xfsctl --enable-numa --disable-strip --enable-jemalloc --enable-virtfs 
--disable-libnfs --disable-fdt --disable-guest-agent --disable-guest-agent-msi

** Affects: qemu
     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/1685242

Title:
  ovmf hangs at efi with virtio-net memory hotplug

Status in QEMU:
  New

Bug description:
  with qemu 2.9 it hangs at the efi stage when memory-hotplug is enabled
  and it has a virtio-net devices

  the ovmf images where compiled from https://github.com/tianocore/edk2
  (current master)

  reproducer:

  qemu-system-x86_64 -drive
  'if=pflash,unit=0,format=raw,readonly,file=./OVMF_CODE.fd' -drive
  'if=pflash,unit=1,format=raw,file=./my_OVMF_VARS.fd' -smp 1 -vga std
  -netdev 'type=tap,id=mynet' -device 'virtio-net-pci,netdev=mynet'
  -display sdl -nodefaults -m 'size=1G,slots=256,maxmem=1024G'

  interestingly, it works when you do the following:

  - omit the virtio-net-pci device
  - use seabios
  - use less maxmem, e.g. 512G

  qemu was compiled from source (v2.9.0) with following options:

  ./configure --target-list=x86_64-softmmu --disable-xen --enable-gnutls 
--enable-sdl --enable-linux-aio --enable-rbd --enable-libiscsi 
--disable-smartcard --audio-drv-list="alsa" --enable
  -spice --enable-usb-redir --enable-glusterfs --enable-libusb --disable-gtk 
--enable-xfsctl --enable-numa --disable-strip --enable-jemalloc --enable-virtfs 
--disable-libnfs --disable-fdt --disable-guest-agent --disable-guest-agent-msi

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1685242/+subscriptions