Hi,
I would like to request help using Virtualbox and the DPDK virtio poll
mode driver.
The DPDK basic testing application testpmd stalls in an endless loop
when setting up the promisc mode / multicast settings of the virtio
device using the control virtqueue.
It seems like it is waiting for the virtio device (host) to increase the
used counter and returning the used descriptors or not receiving the
notification.
Commenting out the usage of the Control virtqueue fixes the problems and
even allows packet transmission.
More information on how to reproduce my problem is included here:
http://dpdk.org/ml/archives/dev/2015-October/024737.html
http://dpdk.org/ml/archives/dev/2015-October/024778.html
I used vagrant for easy reproducibility and have tried with Virtualbox
4.3.30 and 5.0.6.
For me it is currently unclear if DPDK or Virtualbox is responsible for
this problem.
I tried to increase the log level using VBoxManage debugvm for
dev_virtio and dev_virtio but didn't succeed. A logfile is created in
the directory of my Vagrantfile, but it is empty.
VBoxManage debugvm
vagrant-dpdk-virtio-trial_generator_1445086482083_95640 log --release
+dev_virtio.e.l.f +dev_virtio_net.e.l.f
VBoxManage debugvm
vagrant-dpdk-virtio-trial_generator_1445086482083_95640 log --release
+dev_virtio.e.l.f +dev_virtio_net.e.l.f
Do I need a special debug build for logging? (I currently use
http://download.virtualbox.org/virtualbox/debian as Ubuntu package
source and would like avoid building Virtualbox myself.)
I would be very glad if someone could reproduce this behavior and
confirm or fix the problem.
As a step towards the solution of the problem I would like to confirm
that the virtring layout and the PCI address mappings work in the right
way.
Might there be some influence that I have two virtualbox instances
(generator and receiver) running at the same time?
Best regards,
Steffen Bauch
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