Thursday, 2022-07-14

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pave1#startmeeting CIP IRC weekly meeting12:01
collab-meetbot`Meeting started Thu Jul 14 12:01:00 2022 UTC and is due to finish in 60 minutes.  The chair is pave1. Information about MeetBot at http://wiki.debian.org/MeetBot.12:01
collab-meetbot`Useful Commands: #action #agreed #help #info #idea #link #topic #startvote.12:01
collab-meetbot`The meeting name has been set to 'cip_irc_weekly_meeting'12:01
*** collab-meetbot` changes topic to " (Meeting topic: CIP IRC weekly meeting)"12:01
pave1Hi! And say hi if you are around.12:01
ulihello12:01
masamihi12:01
alicefhi12:01
flo2Hi!12:01
pave1Hello, Florian. Nice to meet you!12:02
pave1I'd like iwamatsu and patersonc...12:03
alicefoh right, maybe wait some more time ?12:04
alicefjki is not here today ?12:05
alicefhello patersonc[m] iwamatsu12:05
pave1jki said he may not be able to make it.12:06
alicefI see. thanks for chairing today12:06
pave1:-)12:06
alicef:D12:06
pave1Let's start.12:06
pave1#topic AI review12:06
*** collab-meetbot` changes topic to "AI review (Meeting topic: CIP IRC weekly meeting)"12:06
alicefyeah12:07
pave11. Resolve/ignore failures of KernelCI on 4.4-cip - alicefm12:07
alicefI replay to your mail. I hope you have see it :)12:07
alicefreplayed12:07
alicefI see flo2 replay12:07
pave1Yes. I also seen flo2 starting to work on that.12:07
flo2jki asked me to have a look.12:08
alicefyes, unfortunatly kernelci is just keeping 28days of logs12:08
alicefand that is 4TB12:08
flo2No active working yet, but starting to get in touch with kernelci and the build/test configuration12:08
pave1alicef: Yes, that's one of the problems. I wonder if having logs per-project would make sense? I don't believe we produce that much of logs.12:09
pave1flo2: Thank you.12:09
alicefpave1: we can make some change in the cleaning logs script specifically for CIP12:10
pave1flo2: For the record, lot of kernelci messages can be found in cip-dev mailing list logs.12:10
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alicefpave1: how much time would make sense?12:11
flo2Could someone ACK that it should be possible to trigger cip builds (on staging) by pushing to the kernelci repository by opening a merge request?12:11
alicefflo2: merge request to what kernelci repository?12:12
pave1alicef: We'd need like 3 months, I'm afraid. We are moving quite slowly.12:12
alicefkernelci-core ?12:12
flo2Yes, I think it was kernelci-core...12:12
alicefflo2: yes that's correct12:12
pave1flo2: I think I can trigger build by doing push to test tree. Also -st-rc is currently ahead of -st, I guess I can use that to trigger build.12:13
pave1flo2: Should I/12:13
pave1?12:13
alicefpave1: As I wrote in the mail, yes you can trigger rebuild on your test tree.12:13
alicefpave1: I will look about giving 3 months of logs12:14
flo2At least one recent build (that is expected to fail) would help to check which tests we should exclude for now12:14
alicefto cip builds on linux.kernelci.org12:15
alicefflo2: I have triggered the test, it takes sometime for the results as I triggered it on every laboratory12:16
pave1flo2: I have updated 4.4.y-cip. That should do the trick.12:17
pave1312:17
flo2Thanks!12:17
alicefpave1: could you open a issue on kernelci-core about the logs or I should do by myself? both is not problem12:17
alicefjust for keeping track of it12:17
pave1alicef: Please do.12:17
alicefok12:18
pave1Thank you!12:18
pave1312:18
pave1212:18
pave1112:18
alicefpave1: anything other about this?12:18
pave1I guess flo2 is looking into that, so I'm happy :-).12:18
alicefflo2: here is last cip 4.4 build https://staging.kernelci.org/job/cip/branch/linux-4.4.y-cip/12:18
alicefbuilded now12:18
pave12. Check cip devices on kernelci old pull request - patersonc12:19
pave1Patrsonc is not around here. Skip?12:19
alicefpatersonc[m]12:19
alicefI think patersonc is not pinging patersonc[m]12:19
alicefusually tab should autocomplete the name12:20
alicefbut depend from your client12:20
alicef:)12:21
pave1I'm not sure how pinging is supposed to work, but it seems he is not here. I don't think my client supports that.12:21
pave13. Update https://wiki.linuxfoundation.org/civilinfrastructureplatform/ciptesting/cipreferencehardware - iwamatsu-san12:21
pave1iwamatsu does not seem to be here, either.12:22
pave1Anything else?12:22
alicefnot from me.12:22
pave1312:22
pave1212:23
pave1112:23
alicefI think we are only in 3 today12:23
alicef5 sorry12:23
pave1#topic Kernel maintenance updates12:23
*** collab-meetbot` changes topic to "Kernel maintenance updates (Meeting topic: CIP IRC weekly meeting)"12:23
pave15 is the right number.12:23
alicefwe already discussed on the AI of 4.412:24
pave1I'm reviewing 5.10.130/131 and did some work moving 4.4 forward.12:24
alicefI discussed with kernelci about your issues12:24
ulireviewed 4.4 backports, now reviewing 5.10.13112:24
masamiThere was 8 new CVEs and 8 updated CVEs.12:24
masamiLuckly, Retbleed's CVSS score isn't high.12:24
pave1masami: retbleed is currently being reviewed as part of 5.10.131 ... AFAICT. There's also something called straight-line-speculation, mixed in to make it more fun.12:26
pave1uli: Thanks!12:26
ulinp12:27
masamipavel: such bugs are so bad :(12:27
pave1I'll be on holidays, likely w/o internet next week.12:27
pave1masami: Yes. Basically advantage of x86 is that it is backward compatible. Except that it is not compatible if you care about security.12:29
pave1masami: People should really avoid out-of-order CPUs when security is needed.12:29
masamipavel: that's true.12:30
alicefis also really expensive to mitigate retbleed12:30
alicefin term of overhead12:31
alicefbetween 14% and 39% overhead12:31
pave1Hmm. 14%..39% :-(. Fortunately kernel is usually smart part of total workload.12:31
pave1Otoh this probably affects more than kernel. Fun.12:32
alicefit also involve changes to 68 files ...12:32
pave1At some point we'll boot qemu on bare metal, just to emulate bug-free CPU :-).12:32
alicefthat's a big backporting12:32
pave1And backporting may be easy compared to testing a) it still works and b) it really fixes the problem.12:33
pave1Anything else here?12:34
pave1312:34
pave1212:34
pave1112:34
pave1#topic Kernel testing12:35
*** collab-meetbot` changes topic to "Kernel testing (Meeting topic: CIP IRC weekly meeting)"12:35
pave1alicef> we already discussed on the AI of 4.412:35
pave1alicef> I discussed with kernelci about your issues12:35
pave1Thank you!12:35
pave1Anything else?12:35
alicefyes sorry I miss read maintainenance with testing12:35
alicefand started to write12:35
pave1Yes, it took me few seconds but I figured it out :-).12:35
pave1312:35
ulii only figured that out now :)12:35
pave1212:36
pave1112:36
alicefI disscussed your issues with kernelci and will figure it out12:36
pave1Thank you. I'm still not sure our testing needs are good fit for kernelci, but as long as gitlab testing works, additional testing should not hurt.12:37
pave1312:38
pave1212:38
pave1112:38
pave1#topic AOB12:38
*** collab-meetbot` changes topic to "AOB (Meeting topic: CIP IRC weekly meeting)"12:38
alicefwhy you think we are not good fit for kernelci?12:38
pave1With 4.4 backports, I basically apply a patch and need to see if it builds etc.12:39
pave1(For automatically-applied patches, I simply apply whole batch, but for manual backports, I see enough errors that batching does not make sense).12:40
pave1So it is ... say 15 minutes backporting, submit for a test, fix it up for next one, submit for a test.12:40
pave1That's quite a high load and I need the results quite fast.12:40
alicefcurrently KernelCI is building CIP for many boards and configurations, that could be blocklisted.12:42
alicefAlso KernelCI is currently working on many changes for new KernelCI tools.12:43
alicefand creating a new version of KernelCI12:45
alicefI understand that gitlab is more fast currently but is also testing in few boards12:45
aliceffewer12:46
pave1I guess we should let flo2 do the work, then we can time how long it takes kernelCI to do the tests and if it is suitable replacement for gitlab testing.12:46
pave1Yes, gitlab runs on fewer boards, and also (AFAIK) we pay for builders so it is okay if we use it a lot.12:47
alicefyour developer branch for kernelci is too slow?12:47
pave1I have not really timed it yet, but I assume it will not be 15 minutes?12:48
alicefmaybe we can make many blocks on your developer branch and enable only few boards for having results faster12:48
alicefif that is better for you12:48
pave1That may make sense if we want to replace gitlab at some point.12:48
alicefI doubt that paying gitlab give you the same bords that KernelCI is using for building (I could be wrong)12:49
pave1I don't really know. I guess we can discuss after flo2 makes the results useful.12:50
alicefpave1: sure12:50
pave1Anything else?12:51
pave1512:51
pave1412:51
pave1312:52
pave1212:52
pave1112:52
pave1#endmeeting12:52
collab-meetbot`Meeting ended Thu Jul 14 12:52:12 2022 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)12:52
collab-meetbot`Minutes:        http://ircbot.wl.linuxfoundation.org/meetings/cip/2022/07/cip.2022-07-14-12.01.html12:52
collab-meetbot`Minutes (text): http://ircbot.wl.linuxfoundation.org/meetings/cip/2022/07/cip.2022-07-14-12.01.txt12:52
collab-meetbot`Log:            http://ircbot.wl.linuxfoundation.org/meetings/cip/2022/07/cip.2022-07-14-12.01.log.html12:52
*** collab-meetbot` changes topic to "Civil Infrastructure Platform Project. CIP mailing list at https://lists.cip-project.org/g/cip-dev | CIP kernel meeting every Thursday at 12:00 UTC | Find the meeting logs at https://ircbot.wl.linuxfoundation.org/meetings/cip/ and chat logs at https://ircbot.wl.linuxfoundation.org/logs/%23cip/""12:52
pave1Thank you all!12:52
alicefthanks you pave112:52
masamithank you12:52
ulithanks12:52
alicefI suppose we need to update smc for retbleed on kernelci12:54
alicefnot sure what version gitlab is using12:54
alicefon KernelCI you can get also much more detailed results12:55
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pave1I got the results hour after submission. That's better than I expected...13:09
pave1Anyway, bye for now!13:09
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alicef!note13:30
alicef!help note13:30
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