On Thu, Mar 25, 2021 at 09:05:51AM -0700, Stephen Hemminger wrote:
> On Thu, 25 Mar 2021 15:16:47 +0100
> David Marchand <david.march...@redhat.com> wrote:
> 
> > On Mon, Jan 18, 2021 at 6:55 AM Hemant Agrawal
> > <hemant.agra...@oss.nxp.com> wrote:
> > > On 1/14/2021 7:14 PM, David Marchand wrote:  
> > > > On Thu, Jan 14, 2021 at 8:24 AM Hemant Agrawal <hemant.agra...@nxp.com> 
> > > > wrote:  
> > > >> Secondary process may not have all the tailq available for
> > > >> mapping, so better to ignore the error.
> > > >>
> > > >> e.g. if the primary process is linked with N libs
> > > >> and secondary process is linked with less number of libs.
> > > >>
> > > >> dpdk-procinfo results into following error:
> > > >> EAL: Cannot initialize tailq: VMBUS_RESOURCE_LIST  
> > > > For dpdk-procinfo to complain about vmbus, it means the bus driver has
> > > > been loaded in the secondary, but not in the primary.
> > > > Is this what you intend to do?
> > > >  
> > > Yes.
> > >
> > > Typically the customer applications are built/linked with only limited
> > > number of bus, devices
> > >
> > > dpdk-procinfo is getting compiled with default list as part of dpdk
> > > build. so, if customer is trying to use the default dpdk-procinfo with
> > > their application - there will be differences.
> > >  
> > 
> > Is this a usecase that we support or we want to support?
> > Thanks.
> > 
> > 
> 
> Primary and secondary process have to be built with same DPDK version
> and same configuration values.

I'd like to see support for the information provided by proc-info also
exposed via telemetry callbacks, which would give us an easier way for
tooling to request and process this data. Relying on something using the
multi-process model is always going to have potential issues.

/Bruce

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