| 11 Mar 2026 |
 JamieMagee | I'm not sure if there are long-term plans for RISC-V builders on hydra, but I found some notes from a Fedora maintainer working on their RISC-V port:
https://marcin.juszkiewicz.com.pl/2026/03/10/risc-v-is-sloooow/ | 00:24:22 |
 hexa | once beefy rv23a hit | 00:24:48 |
| hexa | we have an offer for acces to Spacemit K3 hardware too | 00:26:24 |
| hexa | * we have an offer for access to Spacemit K3 hardware too | 00:26:28 |
| hexa | I have just doubts its worth it | 00:26:32 |
 dramforever | hydra.nixos.org no, unofficial native riscv hydra running less frequent evals is starting to become viable | 00:30:01 |
| dramforever | also beefy is good for perf, rva23 ... it's limited | 00:30:34 |
| dramforever | notthe most representative but on reddit on coremark they got -30% perf improvement adding vectors on k3. yes that's negative thirty percent, a downgrade | 00:31:57 |
| JamieMagee | That sounds somewhat promising. | 00:34:45 |
| JamieMagee | I tried running hydra using QEMU for RISC-V support, and ran headfirst into: https://github.com/NixOS/nixpkgs/issues/460825#issuecomment-3994959331
TL;DR RISC-V bootstrap binutils is predates support for zca, while GCC 15 now implies support for zca :/ | 00:39:27 |
| dramforever | that's an unrelated failure | 00:45:37 |
| dramforever | if convenient can you open a new issue for that? thanks | 00:46:01 |
| JamieMagee | dramforever: I opened https://github.com/NixOS/nixpkgs/issues/498689 | 01:01:39 |
| JamieMagee | I was going to wait for the bootstrap overhaul, but who knows how long that will take to land. So this should resolve the issue for now: https://github.com/NixOS/nixpkgs/pull/498702 | 02:13:47 |
| 12 Mar 2026 |
 Alister Galpin | Does anyone have an example of the minimum needed to get nix onto a device with uboot was just thinking about it and a lot of the previous pain I had was compiling, so thinking I should just get it booting and able to build/switch | 07:01:31 |
| dramforever | nixos? or just nix | 07:02:14 |
| Alister Galpin | Nixos | 07:02:27 |
| dramforever | also we don't really have prebuilt stuff for riscv so maybe it's not going to be much less pain | 07:02:36 |
| Alister Galpin | True, but might make the iterations faster, last attempt took 2 days of compiling 😅 | 07:03:42 |
| Alister Galpin | And then the image didn't boot ran out of time and now that's 6 months ago at least | 07:04:47 |
| 18 Aug 2023 |
|  Shados joined the room. | 05:42:58 |
 misuzu | % cat /proc/mtd
dev: size erasesize name
mtd0: 00080000 00001000 "spl"
mtd1: 00010000 00001000 "uboot-env"
mtd2: 00400000 00001000 "uboot"
mtd3: 00a00000 00001000 "reserved-data"
Looks like the visionfive2_fw_payload.img should be flashed to /dev/mtd2 instead of /dev/mtd1
| 08:29:39 |
| 20 Aug 2023 |
|  erremilia joined the room. | 17:53:34 |
|  Claes joined the room. | 19:27:07 |
| 24 Aug 2023 |
| erremilia | 
Download 1000004363.jpg | 19:36:55 |
| erremilia | This should be fun to play with | 19:37:02 |
 Dagn Hive | oooh nice | 19:38:17 |
| Dagn Hive | same chip as starfive v2 iirc so it should be somewhat easy to use | 19:38:37 |
| erremilia | Sounds good! Me and my SO mostly got it to play with and just see some Risc-V stuff but it'd be awesome if it turns out to be useful. | 19:39:52 |
 raitobezarius | let us know how it goes | 19:40:12 |
