UV binary not working on raspberry pi 5

[nhumrich]

Summary

Apologies if this is a duplicate. I found two potential duplicates, but they were closed a while ago, and this issue is recent.

Possible duplicates: #4647 #6528

When building a docker image with UV on a raspberry pi 5, uv crashes. The error is:

0.081 <jemalloc>: Unsupported system page size
0.081 <jemalloc>: Unsupported system page size
0.081 memory allocation of 96 bytes failed
0.084 Aborted (core dumped)

This issue is new, as I have my automated builds run on a raspberry pi. I haven't changed my dockerfile, and my last successful build was on Dec 5. So the bug appears to be introduced after Dec 5.

I have tried updating the raspberry pi 5 packages and that doesn't solve anything.

Unfortunately, you might need a RPi5 to reproduce the issue. However, if you have one, you can reproduce by running docker build on this Dockerfile:

FROM python:3.12-slim

RUN --mount=from=ghcr.io/astral-sh/uv,source=/uv,target=/bin/uv \
    uv pip install pandas

I am unsure of the UV version, as it crashes and won't run, not even to show version. But the sha of the docker image its being mounted from is:
sha256:2381d6aa60c326b71fd40023f921a0a3b8f91b14d5db6b90402e65a635053709

If the uv version is the same as on a non-arm machine pulling, then its 0.5.24

Platform

raspberry pi 5

Version

0.5.24

Python version

3.12.8

[zanieb]

Just to confirm, that SHA is for the latest ARM image

❯ docker run --platform linux/arm64 -it ghcr.io/astral-sh/uv
Unable to find image 'ghcr.io/astral-sh/uv:latest' locally
latest: Pulling from astral-sh/uv
dfc710471e71: Pull complete 
e567a4ebf4fe: Pull complete 
Digest: sha256:2381d6aa60c326b71fd40023f921a0a3b8f91b14d5db6b90402e65a635053709
Status: Downloaded newer image for ghcr.io/astral-sh/uv:latest
uv 0.5.24

[zanieb]

I don't think we set JEMALLOC_SYS_WITH_LG_PAGE=16 in the Docker build.

Can you check if installing from the GitHub Release works instead?

[zanieb]

Similarly, it'd be helpful if you tested #10943

[nhumrich]

Modified the dockerfile to look like this

RUN apt update && apt install curl -y
RUN curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.5.24/uv-installer.sh | sh
RUN ~/.local/bin/uv version

And doing that, it DOES in fact work fine.

[zanieb]

Cool thanks!

Surprised our Docker image ever worked on your machine then, tbh — something else must have changed.