Docker Raspberry -> jemalloc - Unsupported system page size

[dk588]

Bug Report

Describe the bug
I'm trying to start fluent-bit on a raspberry pi5 on docker.
I tried multiple configurations and I'm always ending with the error message below:

<jemalloc>: Unsupported system page size
<jemalloc>: Unsupported system page size
<jemalloc>: Unsupported system page size
<jemalloc>: Unsupported system page size
Error in GnuTLS initialization: ASN1 parser: Element was not found.
<jemalloc>: Unsupported system page size
<jemalloc>: Unsupported system page size
<jemalloc>: Unsupported system page size
<jemalloc>: Unsupported system page size
<jemalloc>: Unsupported system page size
[2024/12/16 08:44:22] [error] [/src/fluent-bit/src/config_format/flb_config_format.c:107 errno=12] Cannot allocate memory

I found the same closed issue on fluentd github, but it didn't help: jemalloc: Unsupported system page size #4328
My best hope is to find a way to disable the jemalloc library as my fluentd-bit instance will no be overloaded.

To Reproduce
I tried as per the documentation:

docker run -ti cr.fluentbit.io/fluent/fluent-bit

I also tried to build my own image with the same result. I play with the jemalloc library and LD_PRELOAD variable env without more success. I'm a bit lost now:

FROM debian:bookworm

USER root
RUN apt-get update \
    && apt-get install -y gpg curl ca-certificates libjemalloc2

RUN curl https://packages.fluentbit.io/fluentbit.key | gpg --dearmor > /usr/share/keyrings/fluentbit-keyring.gpg \
   && echo "deb [signed-by=/usr/share/keyrings/fluentbit-keyring.gpg] https://packages.fluentbit.io/debian/bookworm bookworm main" | tee -a /etc/apt/sources.list

RUN apt-get update \
 && apt-get install -y fluent-bit

ENV LD_PRELOAD=/usr/lib/aarch64-linux-gnu/libjemalloc.so.2

ENTRYPOINT ["/opt/fluent-bit/bin/fluent-bit"]
CMD ["-c", "/etc/fluent-bit/fluent-bit.conf"]

Your Environment

• Version used: cr.fluentbit.io/fluent/fluent-bit
• Environment name and version: docker v27.4.0 build bde2b89
• Server type and version: Raspberry pi5
• Operating System and version: Raspberry os (debian 12 Bookworm)
• Filters and plugins: none

[patrick-stephens]

The container image is compiled for a particular kernel configuration - your kernel configuration does not match so you need to compile a container image that matches. It's the same as the Oracle Linux ARM64 page size mismatch with the rest of other RHEL-compatible kernels.
Ultimately we could try to maintain a configuration for every possible OS that people want to use but do not have the resources to do that. You could submit a PR to build a compatible image to help future folks.

[dk588]

Thank you for your answer. Building a compatible image is what I'm trying to achieve.
Just to clarify: I have tried to create my own container image based on Debian Bookworm, using the Debian apt repository. I follow this installation guide debian installation. It says it's compatible with aarch64 architecture.
So shouldn't it work with my system?
the result of uname -a

Linux pi5 6.6.62+rpt-rpi-2712 #1 SMP PREEMPT Debian 1:6.6.62-1+rpt1 (2024-11-25) aarch64 GNU/Linux

[patrick-stephens]

Do the Raspbian packages (not containers) work?

[dk588]

I only found raspbian packages for 10 and 11 : https://packages.fluentbit.io/raspbian/
For the moment there's no release for 12 (bookworm).
I though with a debian 12 docker image, the debian package may also work. But I may be incorrect.

[patrick-stephens]

OK, it may be better to update packages for the new Raspbian version then. It just needs someone to contribute the relevant build config here: https://github.com/fluent/fluent-bit/blob/master/packaging/distros/raspbian/Dockerfile

I think that would be a better solution for most folks than making another custom container image just for it.

[dk588]

Thanks. I believe I understand the problem a bit better.
I'm not sure the build with the dockerfile you provide would work on my case as it compiles from an image for armv8 only.
I cannot even start the base image on my pi5:

docker run -it balenalib/rpi-raspbian:bookworm sh
/bin/bash: error while loading shared libraries: libtinfo.so.6: ELF load command address/offset not page-aligned

What I will try is make the build on a debian image directly on my pi5.
I'll keep you updated if it works.
Kind regards

[patrick-stephens]

Sure, you can use any base image ultimately - this was the requirement for raspbian previously but if your target is different then it will need a different base.