| 13 Oct 2021 |
 sterni | In reply to @piper:lutris.engineering
What would the hurdles be to add qemu-binfmt to Hydra builders? I'm working on sparc64 and ppc64le bootstrap seeds and investigating the possibility of running the 3-stage build entirely on Hydra, so that they're actually just derived from the x86_64-linux seeds you can build cross packages on hydra as well, I think that would be more worthwhile actually | 08:08:22 |
| sterni | of course you then can't get binary cache for any native packages from hydra | 08:08:38 |
 Piper McCorkle (she/her or they/them) | The first stage of building bootstrap-tools is cross, but the second two stages are native | 08:09:01 |
| sterni | ah right, yeah | 08:09:23 |
| sterni | I wonder how noticeable the performance cost of binfmt_misc would be for us; I think it would hurt us more than e. g. alpine which build riscv64 packages using it since we rebuild everything a lot | 08:10:37 |
 Rick (Mindavi) | There's also a chance of miscompilation due to bugs in the emulator or mismatched feature support, I think. Anyway, afaik it's also very slow | 08:22:22 |
| Piper McCorkle (she/her or they/them) | I am realizing from experience how slow it is... unfortunately I don't know if there's a better option without having a native buildbox, and it would be hard to get a dedicated buildbox for these exotic architectures | 08:23:32 |
| sterni | Does it sound plausible that some Hydra builders are running a Kernel < 5.9? | 10:18:51 |
 Vladimír Čunát | In reply to @sternenseemann:systemli.org
Does it sound plausible that some Hydra builders are running a Kernel < 5.9? t4b does. Generally we probably don't want to rely on that in builds. | 10:20:24 |
| sterni | Vladimír Čunát: bingo :) https://hydra.nixos.org/build/154918256/nixlog/2 | 10:25:20 |
| sterni | but that's easy I'll just disable the test suite if the kernel is too old | 10:25:41 |
| Vladimír Čunát | I suspected it's the only one with old kernel. But I don't think there's just hydra.nixos.org; we also want people to be able to reproduce the build, and 5.9 isn't that old nowadays. | 10:27:59 |
| Vladimír Čunát | * I suspected it's the only one with old kernel. But I don't think there's just hydra.nixos.org; we also want people to be able to reproduce the build, and 5.9 isn't that old nowadays (even though 5.10 has been default on NixOS for some time). | 10:28:41 |
 toonn | Uhm, so I had a job aborted earlier and I started a new evaluation after pushing some more commits but most of the jobs have already "finished" as being aborted. Why is this and can I get them unaborted? | 19:32:04 |
| toonn | *An evaluation aborted rather, I guess. | 19:33:48 |
| sterni | toonn: if they are still the same (hash) they are still aborted | 19:37:48 |
| sterni | I can just restart all aborted ones again | 19:37:54 |
| sterni | * I can just restart all aborted ones again if you link me the evaluation | 19:38:04 |
| toonn | But how would that happen? The commits I pushed touch sphinx. Which caused 1000's of failures before. So I'd expect it to change 1000's of hashes now : s | 19:42:11 |
 Ryan Burns | toonn: you modified the extraPostFetch but didn't change the FOD hash so no hashes changed and nothing will be rebuilt | 19:51:58 |
| toonn | Right... >.< Ok, then I do need the aborted jobs restarted : ) | 19:59:56 |
| toonn | FODs are really a lot less straightforward than I thought they were. | 20:00:39 |
| Vladimír Čunát | Restarted https://hydra.nixos.org/eval/1713061 which you apparently meant. | 20:08:30 |
| Vladimír Čunát | The original motivation of FOD was to avoid rebuild when fetcher is changed, I believe (e.g. URL moves). | 20:09:31 |
| toonn | Thanks. Yeah, they certainly have their uses. It's just that the implications seem obvious and yet they still bite me time and again : ) | 20:10:55 |
| toonn | Excellent, now we wait. (Mr Burns pose.) | 20:13:27 |
| Ryan Burns | lol. I was eagerly watching some of the jobs and they've all gotten stuck in sending inputs now. pikachu face | 20:58:41 |
| toonn | How can you tell? (I'm still not very familiar with interpreting Hydra web interface.) | 21:02:52 |
| Ryan Burns | per job here https://hydra.nixos.org/status or per machine here https://hydra.nixos.org/machines | 21:10:35 |
| toonn | Ah, TIL. That's a much closer eye than I've kept so far : ) | 21:16:24 |
