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Re: [Qemu-devel] Is there more trace-events in vhost module?
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] Is there more trace-events in vhost module? |
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Date: |
Tue, 13 Jun 2017 11:33:40 +0100 |
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User-agent: |
Mutt/1.8.0 (2017-02-23) |
On Mon, Jun 12, 2017 at 08:21:07PM +0800, Sam wrote:
> I'm debuging ovs-2.6.0, dpdk-2.2.0 and qemu-2.6.0. And I run such command:
>
> QEMU_CMD -D qemu-log.log -trace events=qemu-events ...
>
> I want to trace vhost-user protocol process between QEMU and ovs-dpdk.
> Ovs-dpdk's log shows lots of infomations of vhost-user protocol, but QEMU's
> log shows only a little.
>
> As in qemu-events, there is only 'vhost_user_event' event I could use. Is
> there more events or some other method to debug vhost related module in
> QEMU?
vhost_user_event is the only QEMU trace event that currently exists for
vhost-user.
Guidelines for submitting patches are here if you decide to add more:
http://wiki.qemu.org/Contribute/SubmitAPatch
Stefan
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