| 15 Jan 2022 |
 [0x4A6F] | Doesn't work for one of my system. still investigating. aarch64-linux works though. | 18:43:07 |
 Zhaofeng Li | Do you see the binfmt_misc registrations in /proc/sys/fs/binfmt_misc at all? | 18:44:13 |
| [0x4A6F] | Just a problem in my deployment..Works now. | 18:54:30 |
 sterni | Zhaofeng Li: so a downstream native stdenv? | 19:10:00 |
| Zhaofeng Li | In reply to @sternenseemann:systemli.org
Zhaofeng Li: so a downstream native stdenv? Not anymore, since riscv64-linux stdenv got merged in https://github.com/NixOS/nixpkgs/pull/147942 | 19:12:01 |
| sterni | uhh missed that nice :) | 19:44:01 |
| 16 Jan 2022 |
| Zhaofeng Li | In case you want to try out Firefox and SuperTuxKart on RISC-V NixOS yourself, there is now a new graphical QEMU image:
https://github.com/zhaofengli/nixos-riscv64/releases/tag/2022011500 | 04:58:11 |
| Zhaofeng Li | With Virtio-GPU + VirGL (use the included launch.sh), SuperTuxKart is pretty playable with some texture glitches | 04:59:44 |
 ius | Zhaofeng Li: re binfmt builds, have you run into any qemu issues? boehm-gcs testsuite seems to ~reliably cause qemu-user to disintegrate | 22:02:31 |
| ius | ERROR:../plugins/core.c:222:qemu_plugin_vcpu_init_hook: assertion failed: (success)
Bail out! ERROR:../plugins/core.c:222:qemu_plugin_vcpu_init_hook: assertion failed: (success)
Child process failed, status= 0x7f00
Test failed
FAIL gctest (exit status: 134)
(on nixos-unstable, riscv64)
| 22:03:07 |
| Zhaofeng Li | In reply to @ius:nltrix.net
ERROR:../plugins/core.c:222:qemu_plugin_vcpu_init_hook: assertion failed: (success)
Bail out! ERROR:../plugins/core.c:222:qemu_plugin_vcpu_init_hook: assertion failed: (success)
Child process failed, status= 0x7f00
Test failed
FAIL gctest (exit status: 134)
(on nixos-unstable, riscv64)
Hmm, binfmt is pretty janky and it could be one of the packages that don't work. Let me try from my end | 22:04:15 |
| ius | looks like some kind of threading issue, and I'm not the first to notice: https://lists.gnu.org/archive/html/qemu-devel/2020-04/msg03004.html | 22:07:41 |
| Zhaofeng Li | Hmm, it builds fine for me (qemu 6.1.0): https://gist.github.com/zhaofengli/95eb2948deda98b6d8f2854bdf24c24f | 22:08:27 |
| Zhaofeng Li | (this is under binfmt) | 22:08:38 |
| ius | Same qemu ver for me, failed 3 times in a row. | 22:24:11 |
| ius | Sometimes on a different test, so I guess there's some bad luck involved ;) | 22:24:33 |
| ius | Well, patching the assert out works for me 🤷♂️ | 22:36:24 |
| 18 Jan 2022 |
| ius | Zhaofeng Li: I've built some more and see similar wonkyness in aws-common-c and llvm tests - are you running those tests & are they okay for you using binfmt? | 19:26:33 |
| ius | I'm confused how all these tests suggest it's extremely broken, yet the toolchain seems fine | 19:31:33 |
| ius | 43% tests passed, 222 tests failed out of 389 | 19:34:31 |
| Zhaofeng Li | For aws-c-common, see https://github.com/zhaofengli/nixpkgs/commit/4f80543ea818b0e833756619d8484d245ec7477a and https://github.com/awslabs/aws-c-common/pull/873 | 19:36:09 |
| Zhaofeng Li | And for LLVM, the tests need to be disabled for the time being. Some of the issues are being tracked upstream. | 19:36:58 |
| ius | Thanks, again | 23:39:30 |
| 20 Jan 2022 |
|  andi- left the room. | 00:09:30 |
| Zhaofeng Li | In reply to @ius:nltrix.net
Zhaofeng Li: re binfmt builds, have you run into any qemu issues? boehm-gcs testsuite seems to ~reliably cause qemu-user to disintegrate Ok, I just rebased my branch against master and can confirm that I see the same thing | 02:12:44 |
| ius | Let me know if you figure out why, otherwise I might look at it (maybe in a bit) | 17:38:34 |
|  snowball joined the room. | 21:07:45 |
| 24 Jan 2022 |
 Corbin | Does anybody use NixOS for (what might justifiably be called) a Beowulf cluster, and are there docs? This is more out of curiosity than a serious intent to build stuff. | 19:37:19 |
| Zhaofeng Li | The cluster itself is easy, what isn't easy is what you are planning to run on it. Some usecases involve clunky grid scheduling systems or some other daemon running on each node. | 19:39:14 |
| Corbin | That's true. I was thinking mostly about the pooling of RAM and CPUs. Are there any non-clunky schedulers in nixpkgs? | 19:49:34 |
