Hello, 1. I don't find under bcc/examples a reference for forwarding function . e,g, capture pkt on if-a look for any match and then forward to if-b. Can you send a reference to a similar function.

Thank you Paul Pls see inline marked [Avi Cohen (A)] From: Paul Chaignon [mailto:paul.chaignon@...] Sent: Monday, 18 December, 2017 12:15 PM To: Avi Cohen (A) Cc: iovisor-dev@... Subject: Re:

We really can't do much to help without the source code. I'm guessing you're referring to the XDP hook. The eBPF program is executed on the packets before the skbuff is allocated but after the DMA.

[Avi Cohen (A)] Thank you Paul and Y. Song I have 2 questions: 1. I’m already running some ‘packet filtering’ , e.g ICMP pkts, I try to ’DROP’ all ICMP pkts (return 0) Indeed it is

If bcc is correctly installed, to run the hello_world example, you should only need to run ./examples/hello_world.py as root. This tutorial is probably a better source of information in your

There is an example at bcc/examples/networking/xdp which you can try. <iovisor-dev@...> wrote:

I've installed (packaged) bcc as per https://github.com/iovisor/bcc/blob/master/INSTALL.md Now I want to start playing. a simple one like 'hello-world' . I couldn't find a guide for this simple

I've installed (packaged) bcc as per https://github.com/iovisor/bcc/blob/master/INSTALL.md Now I want to start playing. a simple one like 'hello-world' . I couldn't find a guide for this simple

Thanks all for attending today. Below you may find the notes from the call. We will be skipping the next call and resuming on Jan 10. See you all in the new year! === Status === Yonghong: - bcc:

You cannot get stack trace on other threads (tasks) in bpf programs. However, depending on what your "certain conditions" are, you may be able to attach multiple bpf programs to your application, and

Hi, I have a tracepoint probe for sched_switch event. While tracing the context-switches of a multi-threaded program, I would like to get stack trace of other active threads under certain

Please join us tomorrow for our bi-weekly call. As usual, this meeting is open to everybody and completely optional. You might be interested to join if: You want to know what is going on in BPF

Could you describe your use case? Getting stack trace from a different CPU involves an IPI (inter-processor interrupt) which is beyond bpf. But typically you could run your programs on both cpus and

Hello, Is it possible to get stack trace from a different CPU core with eBPF? Thank you, Reena

Thanks all for attending the meeting today. Here are the notes from the discussion. === Status Updates === Brenden: - Adding f26 f27 and ubuntu1710 bcc buildbots - Creating 0.5.0 tag Jesper: - XDP

Please join us tomorrow for our bi-weekly call. As usual, this meeting is open to everybody and completely optional. You might be interested to join if: You want to know what is going on in BPF

Hi, Mauricio, The issue is that we link the api-static library to produce the libbcc shared library. During the linking process, not-referenced symbols in api-static library get dropped. I have a

Dear All, I have been using libbcc with a C++ application without problems for a while. However, when I tried this with bcc master I got some linker errors. Even with a basic example I get the same

Hi All, Thanks for attending the call this week, as usual here are the notes of the discussions and updates. === Netdev === LWN summary article for Netconf+Netdev is

Please note, California observes daylight saving time, and hence the time for some timezones may have changed since last meeting. Please confirm using the timeanddate.com link at the bottom. Please