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NixOS RISC-V

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NixOS on RISC-V https://wiki.nixos.org/wiki/RISC-V https://pad.lassul.us/NixOS-riscv64-linux https://github.com/orgs/NixOS/teams/risc-v64 Servers

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9 Jan 2025
@rosscomputerguy:matrix.orgTristan RossThat's Chinese18:05:36
@rosscomputerguy:matrix.orgTristan RossAnd this is over serial so I think there's some clobbering of data18:05:46
@rosscomputerguy:matrix.orgTristan RossIdk how Chinese text got in aside from some earlier logs from lua-language-server failing to build and it prints its unit tests in Chinese18:06:59
@rosscomputerguy:matrix.orgTristan RossI pulled in that bpftools fix into my Flake and looks like it's working? I'm not sure until I have significant progress in this rerun of the builds.18:08:13
@rosscomputerguy:matrix.orgTristan Ross592 builds to go18:08:20
@alex:tunstall.xyzAlex
In reply to @rosscomputerguy:matrix.org
That's Chinese
Impossible to tell them apart because of the way Unicode was designed.
19:04:42
@rosscomputerguy:matrix.orgTristan RossRip, openexr failed tests due to 1 test timing out19:45:13
@alex:tunstall.xyzAlex
In reply to @rosscomputerguy:matrix.org
Rip, openexr failed tests due to 1 test timing out

This unfortunately happens for some packages. Commonly available RISC-V cores can be far slower than the heavily optimised and mature x86 platforms that often set the timings.

You could report the issue upstream, but for now disabling checks is an easy solution. It could even save hours of building if you do it pervasively.

21:20:48
@rosscomputerguy:matrix.orgTristan Ross
In reply to @alex:tunstall.xyz

This unfortunately happens for some packages. Commonly available RISC-V cores can be far slower than the heavily optimised and mature x86 platforms that often set the timings.

You could report the issue upstream, but for now disabling checks is an easy solution. It could even save hours of building if you do it pervasively.

Yeah... I'm kinda aware of that. Hopefully someday we get more performant systems.
21:22:08
@alex:tunstall.xyzAlex

Emulated builds (e.g. via binfmt) also struggle with the problem.

Access to clocks and timings interferes with reproducibility, but they are very difficult system calls to take away.

21:24:54
@rosscomputerguy:matrix.orgTristan RossUnfortunately, I cannot do emulated builds because those don't work with a page size larger than 4k.23:13:05
@rosscomputerguy:matrix.orgTristan RossI've gotten things like bus errors with just running ls23:13:20
10 Jan 2025
@lab.8916100448256:matrix.org12b joined the room.16:23:35
@fgaz:matrix.orgfgaz
In reply to @rosscomputerguy:matrix.org
Rip, openexr failed tests due to 1 test timing out
I think I increased the timeout of that package already
22:38:49
@fgaz:matrix.orgfgazlike months ago22:38:52

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