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From: Dario Faggioli <dfaggioli@suse.com>
To: Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>,
	Linux Trace Devel <linux-trace-devel@vger.kernel.org>
Subject: Re: [PATCH v28 0/8] Timestamp synchronization of host - guest tracing session
Date: Tue, 09 Feb 2021 08:18:24 +0100	[thread overview]
Message-ID: <36b92f82fa13ab5f36b50ba6aff852d66a55f9f3.camel@suse.com> (raw)
In-Reply-To: <CAPpZLN5SQu=XwQ+XodbVWrXUb-qtcLjH-U79R6NBDJ4jwQSvsw@mail.gmail.com>

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On Tue, 2021-02-09 at 08:03 +0200, Tzvetomir Stoyanov wrote:
> Hi Dario,
> 
Hi!

> On Tue, Feb 9, 2021 at 7:32 AM Dario Faggioli <dfaggioli@suse.com>
> wrote:
> > 
> > If necessary, I can provide more info about my setup, or do more
> > tests.
> 
> There are a few limitations that we are working to address:
>  1. Ensure that vhost_vsock module is loaded on the host.
>  2. You should add a vsock device manually to your VM config, I use
> "virsh edit <vm name>" to add:
>    <vsock model='virtio'>
>       <cid auto='yes'/>
>       <address type='pci' domain='0x0000' bus='0x00' slot='0x09'
> function='0x0'/>
>     </vsock>
> somewhere in the <devices> </devices> section.
> 
Yep, these are both fine. In fact, I tested host<-->guest communication
via vsock independently, and it works, so it does not seem a vsock
issue...

I also try without the series applied (but keeping patch 2) and it
still fails in the same way.

FTR, in the past, I've used trace-cmd from git with an earlier version
of this series applied (the "KVM clock" wasn't there yet) on the same
environment I'm using now, and it worked.

Regards
-- 
Dario Faggioli, Ph.D
http://about.me/dario.faggioli
Virtualization Software Engineer
SUSE Labs, SUSE https://www.suse.com/
-------------------------------------------------------------------
<<This happens because _I_ choose it to happen!>> (Raistlin Majere)

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      parent reply	other threads:[~2021-02-09  7:20 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-08  6:17 [PATCH v28 0/8] Timestamp synchronization of host - guest tracing session Tzvetomir Stoyanov (VMware)
2021-02-08  6:17 ` [PATCH v28 1/8] trace-cmd: Save command lines in VM agent Tzvetomir Stoyanov (VMware)
2021-02-17 20:55   ` Steven Rostedt
2021-02-08  6:17 ` [PATCH v28 2/8] trace-cmd: Fix bug in getting tracing dir in trace-cmd agent Tzvetomir Stoyanov (VMware)
2021-02-08  6:17 ` [PATCH v28 3/8] trace-cmd: Removed unused s64 define Tzvetomir Stoyanov (VMware)
2021-02-08  6:17 ` [PATCH v28 4/8] trace-cmd: Add timestamp synchronization per vCPU Tzvetomir Stoyanov (VMware)
2021-02-08  6:17 ` [PATCH v28 5/8] trace-cmd: Add dummy function to initialize timestamp sync logic Tzvetomir Stoyanov (VMware)
2021-02-08  6:17 ` [PATCH v28 6/8] trace-cmd: [POC] PTP-like algorithm for host - guest timestamp synchronization Tzvetomir Stoyanov (VMware)
2021-02-08  6:17 ` [PATCH v28 7/8] trace-cmd: Debug scripts for " Tzvetomir Stoyanov (VMware)
2021-02-08  6:17 ` [PATCH v28 8/8] trace-cmd [POC]: Add KVM timestamp synchronization plugin Tzvetomir Stoyanov (VMware)
2021-02-16 20:48   ` Steven Rostedt
2021-02-09  5:32 ` [PATCH v28 0/8] Timestamp synchronization of host - guest tracing session Dario Faggioli
2021-02-09  6:03   ` Tzvetomir Stoyanov
2021-02-09  6:08     ` Tzvetomir Stoyanov
2021-02-09  7:28       ` Dario Faggioli
2021-02-09 11:44         ` Tzvetomir Stoyanov
2021-02-09 12:24           ` Dario Faggioli
2021-02-09 13:00             ` Tzvetomir Stoyanov
2021-02-09 15:28               ` Dario Faggioli
2021-02-09 17:01                 ` Tzvetomir Stoyanov
2021-02-10 22:02                   ` Steven Rostedt
2021-02-10 23:35                     ` Dario Faggioli
2021-02-10 21:59             ` Steven Rostedt
2021-02-10 23:33               ` Dario Faggioli
2021-02-09  7:18     ` Dario Faggioli [this message]

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