Illegal instruction ( core dumped ) on CPU without AVX2.
[~/flowsint]
$ grep -c 'NPY_DISABLE' docker-compose.prod.yml config> /dev/null && echo YAML OK" YAML OK
Summary:
Tje 'flowsint-api' production container crashes immediately on startup with 'illegal instruction (core dumped)' on a CPU that doesn't supported AVX2.
The container never becomes healthy, which blocks 'celery' and 'app' from starting ( depend on 'api: condition: service _healthy').
Environment
OS : Kali rolling 26.3
docker : 28.5.2+dfsg4 ( debian package 'docker.io')
git : 2.53.0
GNU Make: 4.4.1 -CPU : x86_64 ( without AVX2**)
'grep -o 'avx2' /proc/cpuinfo | head -l'
===> EMPTY.
- ' grep -o -ml 'abx[^ ]*' /proc/cpuinfo | sort -u'
===> NO AVX flags at all ).
-installation path: '~/flowsint'
-install method: ' git clone https://guthub.com/reconurge/flowsint.git && cd flowsint && make prod'
Steps to reproduce
on a host whose CPU doesn't expose AVX2 ( Bare-Metal or VM wirh CPU type that doesn't pass AVX2 through, e.g. QEMU/KVM 'qemu64').
Clone the repo and run
'''bash git clone https://github.com/reconurge/flowsint.git cd flowsint make prod
***actual behaviour:
'flowsint-api-prod' fails to start. Endless restart loop with exit code 132:
flowsint-api-prod | running database migrationss...
flowsint-api-prod | illegal instructions ( core dumped)
flowsint-api-prod is exited with code 132 ( restarting)
text:
'postgres' 'redis' 'neo4j' become healthy - only the API doesn't.
This blocks 'celery' and 'app' from starting ( tjey depend on 'api: condition: service_healthy').
Already tried*
Set in 'docker-compose.prod.yml' for both 'api' and 'celery' ;
''' yaml
NPY_DISABlE_CPU_FEATURES=AVX512F AVX512CD AVX512_SKK
FAISS_OPT_LEVEL=o
OMP_NUM_THREADS=1
MKL_ENABLE_INSTRUCTIONS=SSE4.2
grep -c NPY_DISABLE ==> 2, docker compose config =>YAML OK.
Result: same crash !.
Analysis
A binary in the image ( ghcr.io/reconurge/flowsint-api:latest) appears to be compiled with AVX2 optimisations.
My CPU has no AVX2
(grep avx2 /proc/cpuinfo ==> EMPTY). Tje env vars do not help because tje crash happens before python starts.
Request
please build image with a conservative -march=x86-64-v2 baseline, or publish a :latest-generic tag. happy to test
Source: reconurge/flowsint