Re: [vpp-dev] getting segfault in execution of vpp 19.01 having nat configuration with trex

[Rubina Bianchi]

Hi Ole,


Thanks for your response. I did apply the patch you'd sent on vpp 19.01. Again 
I got SIGSEGV by running the same test, but it occurred in a different part of 
the code.

Here is the back-trace of gdb:
https://paste.ubuntu.com/p/fpmynt3BCm/

best regards

From: Ole Troan 
Sent: Monday, March 11, 2019 2:36 PM
To: Rubina Bianchi
Cc: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] getting segfault in execution of vpp 19.01 having nat 
configuration with trex

Hi Rubina,

This looks like a fault in a local UDP application (BFD) registering to receive 
UDP packets, even when not configured.
That should be fixed in:
https://gerrit.fd.io/r/#/c/18188/

Great if you can verify when that is merged.

Cheers,
Ole


> I configured nat on vpp 19.01 and wanted to test it using trex. After a 
> while, vpp got SIGSEGV and all packets were dropped. My vpp version was 
> v19.01.1-2~gd0dcf7685.
> Here is my vpp configuration:
> https://paste.ubuntu.com/p/czRf8g6Nt6/
>
> This is trex config file:
> https://paste.ubuntu.com/p/DXHdQf77mC/
> This is my trex yaml file containing pcaps:
> https://paste.ubuntu.com/p/Xdngz3NWRP/
>
> I used this command to start trex test.
> ./t-rex-64 -f cap2/sfr.yaml --cfg cfg/trex_config_nat.yaml -c 4 -m 8 
> --learn-mode 3 -d 3600
>
> Here is back-trace of gdb.
> https://paste.ubuntu.com/p/qxbHP8PVYS/
>
> It would be appreciated if you can help me to fix this SIGSEGV problem.
>
> Best regards
>
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Re: [vpp-dev] VPP unit test with multiple workers

[Klement Sekera via Lists.Fd.Io]

Hi,

there was an attempt at this some time ago, but the patch was never
merged and the infra has changed a lot in meanwhile so I don't think
it's worth it to rebase it. The patch was to run every existing test in
both single and multi worker scenarios.

You could probably extend the concept of extra configuration options -
two currently exist - extra_vpp_punt_config and extra_vpp_plugin_config,
both can be found in framework.py and introduce a per-test option
to configure it with multiple workers as a poor man's hack solution ...

Thanks,
Klement

Quoting Ranadip Das (2019-03-11 22:01:03)
>I can see that we can create pg- interface for unit testing various vpp
>features. 
>Is it possible to test multiple workers? How can I make sure the packets
>will be sent to different workers on a pg- interface?
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[vpp-dev] Jenkins executors are offline

[Jan Gelety via Lists.Fd.Io]

Hello,

Could you, please, check Jenkins? All executors are reported as offline

https://jenkins.fd.io/computer/

and no job has been executed in the last hour.

Thanks,
Jan
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[vpp-dev] follow-up: Jenkins executors offline

[Dave Barach via Lists.Fd.Io]

I've tried pinging the LF "emergency" alias, but I haven't received 
confirmation that my message went anywhere. Looking for back-channel ways to 
get someone working on the problem. Stay tuned...

Dave
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Re: [vpp-dev] getting segfault in execution of vpp 19.01 having nat configuration with trex

[John DeNisco via Lists.Fd.Io]

Hi Rubina,

I tried to repro this using the VPP image you specified and could not. I was 
able to configure trex the way you had, but was able to run the test without a 
crash overnight.

Could you send us your vpp startup.conf?

Also, is this your own private build or downloaded from package cloud?

Would you be able to build and run a debug image?

Thanks,

John

From:  on behalf of Rubina Bianchi 
Date: Tuesday, March 12, 2019 at 4:10 AM
To: Ole Troan 
Cc: "vpp-dev@lists.fd.io" 
Subject: Re: [vpp-dev] getting segfault in execution of vpp 19.01 having nat 
configuration with trex

Hi Ole,


Thanks for your response. I did apply the patch you'd sent on vpp 19.01. Again 
I got SIGSEGV by running the same test, but it occurred in a different part of 
the code.

Here is the back-trace of gdb:
https://paste.ubuntu.com/p/fpmynt3BCm/

best regards

From: Ole Troan 
Sent: Monday, March 11, 2019 2:36 PM
To: Rubina Bianchi
Cc: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] getting segfault in execution of vpp 19.01 having nat 
configuration with trex

Hi Rubina,

This looks like a fault in a local UDP application (BFD) registering to receive 
UDP packets, even when not configured.
That should be fixed in:
https://gerrit.fd.io/r/#/c/18188/

Great if you can verify when that is merged.

Cheers,
Ole


> I configured nat on vpp 19.01 and wanted to test it using trex. After a 
> while, vpp got SIGSEGV and all packets were dropped. My vpp version was 
> v19.01.1-2~gd0dcf7685.
> Here is my vpp configuration:
> https://paste.ubuntu.com/p/czRf8g6Nt6/
>
> This is trex config file:
> https://paste.ubuntu.com/p/DXHdQf77mC/
> This is my trex yaml file containing pcaps:
> https://paste.ubuntu.com/p/Xdngz3NWRP/
>
> I used this command to start trex test.
> ./t-rex-64 -f cap2/sfr.yaml --cfg cfg/trex_config_nat.yaml -c 4 -m 8 
> --learn-mode 3 -d 3600
>
> Here is back-trace of gdb.
> https://paste.ubuntu.com/p/qxbHP8PVYS/
>
> It would be appreciated if you can help me to fix this SIGSEGV problem.
>
> Best regards
>
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Re: [vpp-dev] follow-up: Jenkins executors offline

[Ed Kern via Lists.Fd.Io]

Looks like another transient latency spike plugged up the drain…

while I was trying to diagnose further magic happened (as in while it was 
nothing I changed or did) and
it went away.

While it may not appear to look like it the queue seems to be returning to 
normal.

Ed



On Mar 12, 2019, at 7:02 AM, Dave Barach via Lists.Fd.Io 
mailto:dbarach=cisco@lists.fd.io>> wrote:

I’ve tried pinging the LF “emergency” alias, but I haven’t received 
confirmation that my message went anywhere. Looking for back-channel ways to 
get someone working on the problem. Stay tuned...

Dave
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[vpp-dev] Published: Tech paper - "Benchmarking SW Data Planes Intel Xeon Skylake vs. Broadwell"

[Maciek Konstantynowicz (mkonstan) via Lists.Fd.Io]

Hi,

We finally managed to get the go ahead to publish above technical paper.

  Workloads tested: VPP, OVS-DPDK, DPDK(testpmd,l3fwd), CoreMark.
  Processors tested: Intel Xeon Skylake vs. Broadwell.
  Compared side-by-side: performance and efficiency of workloads/processors.

Thanks to all involved in peer reviews!

Here are the LF links:

  LFN sites:
On "Resources" page: 
  https://www.lfnetworking.org/resources/ 
Direct pdf download link: 
  
https://www.lfnetworking.org/wp-content/uploads/sites/55/2019/03/benchmarking_sw_data_planes_skx_bdx_mar07_2019.pdf
 

  FD.io sites:
On "Resources" page: 
  https://fd.io/resources/
Direct pdf download link: 
  
https://fd.io/wp-content/uploads/sites/34/2019/03/benchmarking_sw_data_planes_skx_bdx_mar07_2019.pdf

It is a sequel to our original “Benchmarking and Analysis of Software Data 
Planes” paper published back in December 2017:
  
https://fd.io/wp-content/uploads/sites/34/2018/01/performance_analysis_sw_data_planes_dec21_2017.pdf

Welcome all comments, send them to authors :)

Cheers,
-Maciek-=-=-=-=-=-=-=-=-=-=-=-
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[vpp-dev] Fragmentation and Reassembly #vnet

[caffeine.coder via Lists.Fd.Io]

I am new to VPP and experimenting with it.
I was able to get Reass/Frag working on regular Interfaces.
 
The question i have is does Reassembly and Fragmentation supported on Tunnel 
interfaces(Both VXLAN/IPSec).
If supported, is there any config knob i need to enable in addition to enabling 
feature on those interfaces.
 
I am running V18.10. Any inputs will be of great help.
 
Thanks in advance.
Sam M
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[vpp-dev] VPP 19.01.1 Maintenance Release is complete

[Dave Wallace]

Folks,

The VPP 19.01.1 Maintenance Release is complete and the VPP artifacts 
are available in the release area on PackageCloud.io and Nexus.  See VPP 
wiki for instructions on how to download and install the release 
packages: https://wiki.fd.io/view/VPP/Installing_VPP_binaries_from_packages


The CSIT 19.01.1 test results should be available in the next day or so.

VPP Committers, the stable/19.01 branch is now open for merging bug fix 
patches.


Thanks,

-daw-

"Your Friendly VPP Release Manager"

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Re: [vpp-dev] Published: Tech paper - "Benchmarking SW Data Planes Intel Xeon Skylake vs. Broadwell"

[Kingwel Xie]

Thanks. Very helpful.

-Original Message-
From: vpp-dev@lists.fd.io  On Behalf Of Maciek 
Konstantynowicz (mkonstan) via Lists.Fd.Io
Sent: 2019年3月12日 23:55
To: csit-dev ; vpp-dev ; 
disc...@lists.fd.io
Cc: vpp-dev@lists.fd.io
Subject: [vpp-dev] Published: Tech paper - "Benchmarking SW Data Planes Intel 
Xeon Skylake vs. Broadwell"

Hi,

We finally managed to get the go ahead to publish above technical paper.

  Workloads tested: VPP, OVS-DPDK, DPDK(testpmd,l3fwd), CoreMark.
  Processors tested: Intel Xeon Skylake vs. Broadwell.
  Compared side-by-side: performance and efficiency of workloads/processors.

Thanks to all involved in peer reviews!

Here are the LF links:

  LFN sites:
On "Resources" page: 
  https://www.lfnetworking.org/resources/ 
Direct pdf download link: 
  
https://www.lfnetworking.org/wp-content/uploads/sites/55/2019/03/benchmarking_sw_data_planes_skx_bdx_mar07_2019.pdf
 

  FD.io sites:
On "Resources" page: 
  https://fd.io/resources/
Direct pdf download link: 
  
https://fd.io/wp-content/uploads/sites/34/2019/03/benchmarking_sw_data_planes_skx_bdx_mar07_2019.pdf

It is a sequel to our original “Benchmarking and Analysis of Software Data 
Planes” paper published back in December 2017:
  
https://fd.io/wp-content/uploads/sites/34/2018/01/performance_analysis_sw_data_planes_dec21_2017.pdf

Welcome all comments, send them to authors :)

Cheers,
-Maciek
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