libbpf: failed to create map (name: 'sock_pair_map'): Invalid argument(-22)

[dryheartGo]

Bug Description

'merbridge pod' startup failed

• OS: centos8.2
• Kernel: 5.10
• log :

sudo bpftool prog load mb_connect.o /sys/fs/bpf/connect \
	map name cookie_original_dst pinned /sys/fs/bpf/cookie_original_dst \
	map name local_pod_ips pinned /sys/fs/bpf/local_pod_ips \
	map name process_ip pinned /sys/fs/bpf/process_ip
libbpf: failed to create map (name: 'sock_pair_map'): Invalid argument(-22)
libbpf: failed to load object 'mb_connect.o'
Error: failed to load object file
make[1]: *** [Makefile:112: load-connect] Error 255
make[1]: Leaving directory '/app/bpf'
make[1]: Entering directory '/app/bpf'
[ -f /sys/fs/bpf/cookie_original_dst ] || sudo bpftool map create /sys/fs/bpf/cookie_original_dst type lru_hash key 4 value 12 entries 65535 name cookie_original_dst
[ -f /sys/fs/bpf/local_pod_ips ] || sudo bpftool map create /sys/fs/bpf/local_pod_ips type hash key 4 value 4 entries 1024 name local_pod_ips
[ -f /sys/fs/bpf/process_ip ] || sudo bpftool map create /sys/fs/bpf/process_ip type lru_hash key 4 value 4 entries 1024 name process_ip
sudo bpftool prog load mb_connect.o /sys/fs/bpf/connect \
map name cookie_original_dst pinned /sys/fs/bpf/cookie_original_dst \
map name local_pod_ips pinned /sys/fs/bpf/local_pod_ips \
map name process_ip pinned /sys/fs/bpf/process_ip
libbpf: failed to create map (name: 'sock_pair_map'): Invalid argument(-22)
libbpf: failed to load object 'mb_connect.o'
Error: failed to load object file
make[1]: Leaving directory '/app/bpf'
make[1]: *** [Makefile:112: load-connect] Error 255
make: *** [Makefile:3: load] Error 2
time="2022-03-07T02:32:03Z" level=fatal msg="run local ip controller error: load failed: unexpected exit code: 2, err: exit status 2" func="cmd.glob..func1()" file="root.go:38"

replace by ubuntu, no error

Version

Linux xxx 5.10.102-1.el8.x86_64 #1 SMP Thu Feb 24 02:04:30 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

NAME="CentOS Linux"
VERSION="8 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="8"
PLATFORM_ID="platform:el8"
PRETTY_NAME="CentOS Linux 8 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:8"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"

CENTOS_MANTISBT_PROJECT="CentOS-8"
CENTOS_MANTISBT_PROJECT_VERSION="8"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="8"

istio version=1.10.2

[dryheartGo]

GRUB_CMDLINE_LINUX added: systemd.unified_cgroup_hierarchy=1 cgroup_no_v1=all

[kebe7jun]

It looks like it's because the map creation of sockhash type failed.
We haven't run the test on centos8.2, thank you for the information, I will try to find the root cause view to fix him.

[dmytronasyrov]

I have the same error. Version 0.7.0 from Dockerhub, CNI enabled

args:
        - /app/mbctl
        - -m
        - istio
        - --use-reconnect=true
        - --cni-mode=true

[kebe7jun]

I have the same error. Version 0.7.0 from Dockerhub, CNI enabled

args:
        - /app/mbctl
        - -m
        - istio
        - --use-reconnect=true
        - --cni-mode=true

Sorry for late reply, can you post full log here?