[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

Hi all, Thanks for joining in the discussion today. As usual, here are my notes. -Brenden === Discussion === Brenden: - Adding fedora 28 buildbot/packages - debugging some test failures - Tag release 0.7.0 after that Yonghong: - Some more python3 fixes - Some rewriter changes, breakages -

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] minutes: IO Visor TSC / Dev Meeting

Hi All, Thanks for joining the discussion today. As usual, here are my notes. -Brenden === Discussion === John: - sockmap fixes pushed - fixed broken tests - sockmap hash impl next - bounded loop rfc making progress - cilium code using sockhash almost finished as well Yonghong: - python3

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] minutes: IO Visort TSC/Dev Meeting

Hi All, Thanks for attending the meeting today. As usual, here are my notes. Cheers, Brenden === Discussion === Alexei - bpf-next queue is quite large, please have patience with delays in clearing the backlog - please help review others patches Brenden - Fixing image test issues in bcc - To

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] minutes: IO VIsor TSC/Dev Meeting

Hi All, Thanks for attending the meeting today. Here are my notes from the call. Cheers, Brenden === Status === Yonghong - Debugging incorrect user stack - fastpath vs slowpath register difference - should be updated in 4.9+ (LTS flavors) - user stack id - doesn't have full access, trying

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

Hi all, Thanks for joining the discussion today, as usual my notes of the discussion are included below. Cheers, Brenden === Discussion === Alexei - microkernel/umh work - see lkml Yonghong - working on skb segmentation problem - ipv4/v6 transition - bpf on bpf clsact ingress Brenden -

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

Hi all, Thanks for joining the call today! Please see my notes from the discussion included below. === Status === Sargun: seccomp-ebpf - verifier hurdles - wants synchronous filtering as minimum feature to allow the verifier risk - current rcu locking approach was nacked discussion about how

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

Hi all, Thanks for attending the call this week. My notes are included below. === Updates === DTrace GPLed in Dec 2017 - To help with Oracle Linux port - Should we take dtrace kernel code into linux? - opinion: probably not necessary now, more applicable 5 years ago - How about dtrace

Re: [iovisor-dev] minutes: IO Visor TSC/Dev Meeting

On Wed, Feb 21, 2018 at 11:55 AM, Brenden Blanco wrote: > Hi all, > > Thanks for attending the call this week. My notes are included below. > > === Updates === > > DTrace GPLed in Dec 2017 > - To help with Oracle Linux port > - Should we take dtrace kernel code into linux? >

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

Hi All, Thanks for attending today. Below you will find my notes from the call. Cheers, Brenden === Status === Alexei: - Security updates for BPF - Patching uses of BPF for speculative execution - variant 1, one more patch in progress - variant 2, option to toggle off interpreter

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

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: Fixed struct with alignment/int128 quirks - match in python - kernel: query prog array - used for

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 join us tomorrow for our bi-weekly call. As usual, this meeting is open to everybody and completely

[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

Hi All, Thanks for attending the meeting today, here are my notes. === Status === Netdev 2.2 next week - Live streaming available - link to be sent out when available Brenden: - Increase cadence for updating package version - todo: update 0.4.1 Alexei: - Work proceeds on call between

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

Re: [iovisor-dev] iovisor.org certificates

Hi Asif, The repo server has a certificate from Lets Encrypt. I would check with the list of CAs installed in your distro to confirm that Lets Encrypt is supported, and Google around for packages to update from. On Wed, Oct 25, 2017 at 7:06 PM, Haswarey, Asif via iovisor-dev <

[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

Hi All, Thanks for attending the call today. Below are my notes. === Status === Alexei: - 1 patch / day - burdensome on alexei/daniel - how to scale? - to be discussed at netconf - working on calls - can load relatively large files - rfc to come before netdev - memory pressure in the

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

Hi all, Thanks for attending the call today. Here are my notes. Also, please be advised that we will be moving to a 30 min time slot going forward. === Status === Yonghong: - Added source debugging printer for bcc - Requires 6.0 (possible but needs volunteers to backport to 5.0) - Permit

[iovisor-dev] minutes: IO Visor TSC/Dev meeting

Hi All, Thanks for attending the call yesterday, here are my notes: === News === Linux Plumbers was last week, and included an increasing focus on BPF for tracing and other use cases over previous years. The tracing/BPF track on Friday had a very packed agenda, only allowing 10-15 minutes per

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

Hi All, Thanks for attending the call today. Here are the notes from the meeting. Netdev 1.2 reminder: paper submissions deadline is Sept 20 Linux Plumbers microconference (next week) If you have volunteered to lead discussion of a topic, Alexei would like to remind you that we don't want to

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

Re: [iovisor-dev] modifying packets in XDP

On Thu, Aug 24, 2017 at 12:25 PM, Y Song wrote: > On Thu, Aug 24, 2017 at 12:17 PM, Ilya Baldin wrote: >> Thank you, everyone for the replies. This explains about bpf_probe_read. >> >> I tried the approach below (changed the check to offset +1) however that

[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

Hi All, Thanks for joining in to the call today. We shared a round of updates, which are included in the notes below. Also please remember that Plumbers is right around the corner! If you have signed up to lead discussion of a topic at the Tracing+BPF microconference, Alexei would like to have a

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

Hi All, Thanks for joining the meeting today. Here are the notes! === Updates === Yonghong: - allow >2 pids attach to same usdt probe - wip - next: looking at uprobe performance - looked into dyninst - researched systemtap approach - c prog compiled into .so - instrumentation of

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

Re: [iovisor-dev] eBPF hashtables

On Wed, Jun 21, 2017 at 6:40 AM, Douglas Caetano dos Santos via iovisor-dev wrote: > > Hi, > > We're starting to extensively use eBPF on our servers and we've got a couple > of > questions on specific internals that I hope you can help clarify. > > The problem

Re: [iovisor-dev] [iovisor/bcc] USDT broken by b0f891d129a9b372

Also, I would suggest that after that fix, we also update the test to include actually testing for proper values. Probably you can send the values over the perf ring buffer and assert at the end that all of the values are collected properly. On Tue, Jun 6, 2017 at 8:59 PM, Brenden Blanco

Re: [iovisor-dev] [iovisor/bcc] USDT broken by b0f891d129a9b372

Yonghong, can you send a PR for your branch? On Tue, Jun 6, 2017 at 12:20 AM, Y Song via iovisor-dev < iovisor-dev@lists.iovisor.org> wrote: > Hi, Tetsuo, > > You are right. The bug is actually introduced by my last patch. I just > focused one aspect of issue and inadvertently introduced another

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

Hi All, Thanks for attending the call today, here are the notes. == CFP for Linux Plumbers Sept 13-15, Los Angeles Tracing microconference accepted (Alexei, Brendan, Josef leading topics) http://wiki.linuxplumbersconf.org/2017:tracing Last year was successful, looking forward to more

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

[iovisor-dev] [cancelled] IO Visor TSC/Dev Meeting

Hi all, Due to many members being out of town, some concurrently with the netdev conference, the meeting today is cancelled. See you all again in two weeks! -Brenden ___ iovisor-dev mailing list iovisor-dev@lists.iovisor.org

[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

Hi All, Thanks for joining the meeting this week. Here are some status updates from various folks. William: Discussed issue he is having with the verifier/llvm complex program becomes stack limited as a workaround, tried using volatile modifier for some stack variables but this causes the

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

WARNING: please note that California has recently observed Daylight Saving Time, so remember to check your local time conversion. WARNING 2: we're using Bluejeans instead of Webex this time. Please join us tomorrow for our bi-weekly call. As usual, this meeting is open to everybody and

[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

Hi all, Thanks to those who attended, here are my minutes from the meeting. = Conferences past and future = IO Visor Summit We had this last week, the conference room was packed and we had a few remote attendees as well. We are working to upload the videos, collect the slides (please

Re: [iovisor-dev] Problem with ebpf program array map

No, really the only thing you are allowed to do from bpf on a prog array is call() and delete(). It is a one-way street. Unfortunately you will have to keep track of which programs are in which slots from the userspace side entirely. On Fri, Mar 3, 2017 at 12:52 AM, Tanja Ulmen via iovisor-dev

Re: [iovisor-dev] WebEx meeting invitation: IOVisor summit

Hi Folks, It looks like the link in the email for the global dial-in numbers got filtered. If you have trouble joining, please try one of the following: https://www.myrcplus.com/cnums.asp?bwebid=8369444=6742974834=18667156501=17193252777 Thanks, Brenden On Sat, Feb 25, 2017 at 6:34 PM, Deepa

[iovisor-dev] cancelled: IO Visor TSC/Dev Meeting

Since we will be having the summit on Monday, I am cancelling tomorrow's normally scheduled meeting. See you all next week! FYI, we'll be posting the planned agenda shortly. ___ iovisor-dev mailing list iovisor-dev@lists.iovisor.org

[iovisor-dev] minutes: IO Visor TSC/Dev Meeting

IO Visor summit coming, please prepare abstracts if you have something to discuss === Conferences === netdev conf coming up, talks needed Jesper - performance workshop DDoS topic idea: reach out to nic vendors who support xdp - future xdp direction idea: dpdk work idea: specifically, xdp ring

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

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 land You are doing something interesting yourself with BPF and would like to share You want to know what

Re: [iovisor-dev] Accessing a public eBPF map from different namespace

On Sat, Feb 4, 2017 at 6:25 PM, Daehyeok Kim via iovisor-dev wrote: > Hello, > > I am trying to use the eBPF map to share data between two different BPF > modules. > In eBPF module A, I defined a table using BPF_TABLE_PUBLIC ("hash",..,...) and > in the other

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

Please join us 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 land You are doing something interesting yourself with BPF and would like to share You want to know what the heck

[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

Happy New Year All! Please join us for our first bi-weekly call of the year. 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 land You are doing something interesting yourself with BPF and would like

[iovisor-dev] reminder: IO Visor TSC and Dev Members Call

Hi All, Please join us for our bi-weekly call. This meeting is open to everybody and completely optional. *IOVisor TSC/Dev Meeting* Every 2 weeks on Wednesday, from Wednesday, May 18, 2016, to no end date 11:00 am | Pacific Daylight Time (San Francisco, GMT-07:00) | 1 hr *Join WebEx

Re: [iovisor-dev] arm64: LLVM ERROR: Inline asm not supported

On Mon, Dec 12, 2016 at 10:38 PM, Alexei Starovoitov < alexei.starovoi...@gmail.com> wrote: > On Mon, Dec 12, 2016 at 10:33 PM, Ming Lei wrote: > > On Tue, Dec 13, 2016 at 2:11 PM, Alexei Starovoitov > > wrote: > >> On Mon, Dec 12, 2016 at

[iovisor-dev] canceled: IO Visor TSC and Dev Members Call

A number of us are attending Linux Plumbers this week, so we will have the next meeting 2 weeks from today. Sorry for the late notice. ___ iovisor-dev mailing list iovisor-dev@lists.iovisor.org https://lists.iovisor.org/mailman/listinfo/iovisor-dev

Re: [iovisor-dev] kprobe/kretprobe on cls_bpf_classify

On Sat, Oct 29, 2016 at 1:27 AM, William Tu via iovisor-dev < iovisor-dev@lists.iovisor.org> wrote: > Hi, > > I'm trying to measure the performance of my BPF programs, which attach > to clsact. As a start, I thought I could simply measure the cycles > spent on cls_bpf_classify(), because it's the

[iovisor-dev] reminder: IO Visor TSC and Dev Members Call

Hi All, Please join us for our bi-weekly call. This meeting is open to everybody and completely optional. *IOVisor TSC/Dev Meeting* Every 2 weeks on Wednesday, from Wednesday, May 18, 2016, to no end date 11:00 am | Pacific Daylight Time (San Francisco, GMT-07:00) | 1 hr *Join WebEx

[iovisor-dev] reminder: IO Visor TSC and Dev Members Call

Hi All, Please join us for our bi-weekly call. This meeting is open to everybody and completely optional. *IOVisor TSC/Dev Meeting* Every 2 weeks on Wednesday, from Wednesday, May 18, 2016, to no end date 11:00 am | Pacific Daylight Time (San Francisco, GMT-07:00) | 1 hr *Join WebEx

Re: [iovisor-dev] read perf counters

On Tue, Aug 9, 2016 at 9:59 AM, riya khanna wrote: > On Tue, Aug 9, 2016 at 12:24 PM, Brenden Blanco > wrote: > > > > > > On Tue, Aug 9, 2016 at 9:16 AM, riya khanna > > wrote: > >> > >> On Tue, Aug 9, 2016 at 12:05 PM,

Re: [iovisor-dev] read perf counters

On Fri, Jul 29, 2016 at 10:21 AM, riya khanna wrote: > I'm testing perf counters on a 8-core machine. > > since BPF_PERF_ARRAY.perf_read(cpu) reads from local CPU, I'm > aggregating counters across all cpus by doing: > > BPF_PERF_ARRAY(counter, 32); > > for (key = 0;

Re: [iovisor-dev] read perf counters

This needs support in bcc. I had a patch laying around that I never finished, you can find the partial support here: https://github.com/iovisor/bcc/tree/perf-counter It shouldn't be too hard to finalize that, let me see what I can do. On Mon, Jul 25, 2016 at 4:11 PM, riya khanna via iovisor-dev