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| szlin | #startmeeting | 09:00 |
|---|---|---|
| szlin | #roll call | 09:00 |
| patersonc | hi | 09:00 |
| vidda | hi | 09:00 |
| szlin | please say hi if you're here | 09:00 |
| szlin | hi ._./~\ | 09:00 |
| fujita[m] | hi | 09:00 |
| mungaip | hi | 09:00 |
| mungaip | hi | 09:00 |
| szlin | #topic kernel maintenance updates | 09:01 |
| szlin | Ben imported more data in cip-kernel-sec | 09:01 |
| szlin | https://lists.cip-project.org/pipermail/cip-dev/2019-January/001735.html | 09:01 |
| iwamatsu | Hi | 09:01 |
| szlin | #action Daniel will start to work on v4.4.166-cip29-rt21 this friday | 09:01 |
| sangorrin | hi | 09:01 |
| szlin | iwamatsu: do you have any updates? | 09:01 |
| bwh | Hi, sorry I'm late | 09:02 |
| szlin | bwh: (wave | 09:02 |
| iwamatsu | szlin: No, I am testing 4.19.y now. | 09:02 |
| szlin | iwamatsu: thanks | 09:03 |
| szlin | bwh: do you have any updates? I've mentioned the cip-kernel-sec update | 09:03 |
| bwh | No, I haven't done much else as I was mostly on holiday | 09:04 |
| szlin | Feel free to inform us if you need any collaboration work with cip-kernel-sec | 09:04 |
| szlin | bwh: thanks. | 09:04 |
| szlin | wagi: are you around? | 09:05 |
| szlin | any other points? | 09:05 |
| szlin | 3 | 09:05 |
| szlin | 2 | 09:05 |
| szlin | 1 | 09:05 |
| szlin | #topic kernel testing | 09:06 |
| patersonc | We've been having some issues with the LAVA master. Restoring backups keeps failing. LF is currently investigating. | 09:06 |
| patersonc | Not a lot else to report due to the holidays | 09:07 |
| szlin | patersonc: thanks. | 09:08 |
| szlin | iwamatsu: could you elaborate 4.19.y testing? | 09:08 |
| iwamatsu | szlin: I am build, boot and LTP test on RZ board and QEMU. | 09:09 |
| szlin | any issues founded or new test cases added with new feature in 4.19.y? | 09:09 |
| iwamatsu | And I am updating cip-kernel-config to 4.19. | 09:10 |
| szlin | iwamatsu: thanks. | 09:11 |
| iwamatsu | There is no problem for now. | 09:11 |
| iwamatsu | Please let me know if there is any valid document about test cases. | 09:11 |
| patersonc | iwamatsu: I'm working to publish some test cases for the RZ board(s). | 09:12 |
| patersonc | Mainly these will be designed to run in the LAVA env, but there is no reason not to run them directly on the board. | 09:12 |
| sangorrin | patersonc: are you booting from NFS, NBDROOT or just from a ramdisk? | 09:13 |
| sangorrin | oh probably its written in the guide i have to read ^^ | 09:13 |
| patersonc | At the moment either NFS or ramdisk | 09:13 |
| sangorrin | i had problems running ltp on ramdisk | 09:14 |
| sangorrin | i think NFS has problems too | 09:14 |
| iwamatsu | patersonc: Do you have a document that I see about it? | 09:14 |
| sangorrin | in AGL they use nbdroot, or sth like that | 09:14 |
| patersonc | I haven't tried running LTS yet. | 09:14 |
| patersonc | iwamatsu: Not yet. Will publish something when the scripts are ready. | 09:14 |
| iwamatsu | patersonc: I see. | 09:15 |
| szlin | patersonc: the docs and scripts will be uploaded to cip-project right? | 09:16 |
| szlin | https://gitlab.com/cip-project/cip-testing <- | 09:17 |
| patersonc | yes | 09:17 |
| szlin | patersonc: great, we can start to share the test cases | 09:17 |
| szlin | any other points? | 09:17 |
| patersonc | o | 09:17 |
| patersonc | Not from me | 09:18 |
| szlin | 3 | 09:18 |
| szlin | 2 | 09:18 |
| szlin | 1 | 09:18 |
| szlin | #topic CIP Core | 09:18 |
| sangorrin | Jan prepared an ISAR version of cip core, its on the playground | 09:18 |
| sangorrin | we have to integrate it on gitlab | 09:18 |
| sangorrin | we decided to use gitlab groups and use separate repositories for each implementation | 09:19 |
| sangorrin | some instructions and manuals will need to be updated | 09:19 |
| sangorrin | or just announce it on the list | 09:19 |
| sangorrin | patersonc: are renesas manuals depending on the cip-core links? | 09:20 |
| patersonc | sangorrin: I don't think so, no | 09:20 |
| sangorrin | other than that, I am waiting for Siemens to fill my survesy ;_; | 09:20 |
| sangorrin | ok, no more points from me | 09:21 |
| szlin | sangorrin: IIRC, Wolfgang mentioned they will fill out the survey recently on Monday | 09:22 |
| szlin | sangorrin: BTW, helmut is looking for Kazuhiro. I think he wants to ask debian-cross stuff | 09:23 |
| sangorrin | oh | 09:23 |
| sangorrin | i will tell him, he is on my left | 09:23 |
| szlin | helmut: are you around? | 09:23 |
| szlin | any other points? | 09:23 |
| szlin | 3 | 09:23 |
| szlin | 2 | 09:23 |
| szlin | 1 | 09:24 |
| szlin | #topic Software update | 09:24 |
| sangorrin | i sent the survey | 09:24 |
| sangorrin | i am thinking about using binary diffs and a A-B approach | 09:24 |
| sangorrin | binary diffs: because iot devices usually run on sim cards that have a limit per month | 09:25 |
| sangorrin | or similar restrictions | 09:25 |
| szlin | indeed | 09:25 |
| sangorrin | A-B approach: because it causes lower downtime | 09:25 |
| sangorrin | we can install on partition b in the background and then just reboot | 09:25 |
| sangorrin | ill finish a draft of the architecture soon and sent it to the dev list for feedback | 09:26 |
| sangorrin | if you have any input please let me know anytime | 09:26 |
| szlin | sangorrin: Do you think it necessary to use live patch? | 09:27 |
| sangorrin | btw: there are two types of binary diffs: sector based and file-based. I think I want to use file-based but not sure the implications | 09:27 |
| sangorrin | szlin: do you think that's stable? | 09:28 |
| sangorrin | I prefer a more conservative approach | 09:28 |
| szlin | sangorrin: of course not. | 09:28 |
| sangorrin | oh and about the bootloader.. i think updating the bootloader can be complicated sometimes | 09:28 |
| sangorrin | we could brick our devices ;_; | 09:29 |
| szlin | perhaps A/B bootloader | 09:29 |
| bwh | szlin: Live patching is stable maintenance on the hardest difficulty level :-) | 09:29 |
| szlin | bwh: totally agree | 09:30 |
| sangorrin | haha then I will avoid it :D | 09:30 |
| patersonc | A/B bootloader is really dependant on the device | 09:30 |
| patersonc | And where the flash can be accessed from. | 09:31 |
| patersonc | Some newer devices don't allow access to the secure boot medium from the unsecure/Linux world | 09:31 |
| sangorrin | patersonc: good point, we also need to think about such devices with trustzone | 09:31 |
| szlin | and there're some security issues should be handled if we want to upload bootloder in OS. | 09:32 |
| szlin | s/upload/update | 09:32 |
| sangorrin | mmm lets start with something simple | 09:32 |
| fujita[m] | sangorin: does A-B approach need double storage size? | 09:33 |
| fujita[m] | embedded manufacturers do not want to add extra area | 09:33 |
| szlin | fujita[m]: that's kind of trade-off | 09:34 |
| sangorrin | fujita: yes, that's why i did the survey | 09:34 |
| sangorrin | it seems that most members have enough space | 09:35 |
| fujita[m] | Oh | 09:35 |
| fujita[m] | I'll check again the survey seet | 09:35 |
| fujita[m] | our customers always sais they want to reduce their storage | 09:36 |
| sangorrin | but i think many devices cant afford it | 09:36 |
| sangorrin | for example, routers or something with a small flash memory | 09:36 |
| szlin | fujita[m]: I can understand some low-level devices equipped very little size of flash | 09:36 |
| fujita[m] | exactly | 09:37 |
| sangorrin | fujita: thanks for the feedback, another approach is use meta-updater which does not require a B partitions | 09:37 |
| bwh | I think this is going to a little too much detail for this meeting... | 09:37 |
| fujita[m] | thank you! | 09:37 |
| sangorrin | yeah, lets move the discussion to the list | 09:37 |
| szlin | any other points? | 09:38 |
| sangorrin | nothing else from my side szlin | 09:38 |
| szlin | 3 | 09:38 |
| szlin | 2 | 09:38 |
| szlin | 1 | 09:38 |
| szlin | #topic AOB | 09:38 |
| szlin | any other business? | 09:39 |
| szlin | 3 | 09:39 |
| szlin | 2 | 09:39 |
| szlin | 1 | 09:39 |
| szlin | #endmeeting | 09:39 |
| szlin | thanks all | 09:39 |
| fujita[m] | iwamatsu: We're looking forward to the release tomorrow | 09:40 |
| sangorrin | thanks szlin! | 09:40 |
| sangorrin | sorry if my part was too long | 09:40 |
| iwamatsu | fujita: Thanks! | 09:40 |
| patersonc | No worries. It's good to have these discussions :) | 09:41 |
| iwamatsu | szlin: thanks you. | 09:41 |
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| helmut | szlin: I'm sometimes around and read backlog when highlighted. I usually follow up within 24h. | 16:27 |
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