Hi, Here is my step to run bpf selftest on Ubuntu 20.04.2 LTS git clone https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git cd bpf-next; cp /boot/config-5.10.0-051000-generic .config; yes "" | make oldconfig; make bzImage; make modules; cd tools/testing/selftests/bpf/; make then below, am I missing something in kernel config to cause "libbpf: failed to load program 'vxlan_get_tunnel_src'" ./test_progs -a tunnel Failed to load bpf_testmod.ko into the kernel: -8 WARNING! Selftests relying on bpf_testmod.ko will be skipped. serial_test_tunnel:PASS:pthread_create 0 nsec config_device:PASS:ip netns add at_ns0 0 nsec config_device:PASS:ip link add veth0 type veth peer name veth1 0 nsec config_device:PASS:ip link set veth0 netns at_ns0 0 nsec config_device:PASS:ip addr add 172.16.1.200/24 dev veth1 0 nsec config_device:PASS:ip addr add 172.16.1.20/24 dev veth1 0 nsec config_device:PASS:ip link set dev veth1 up mtu 1500 0 nsec config_device:PASS:ip netns exec at_ns0 ip addr add 172.16.1.100/24 dev veth0 0 nsec config_device:PASS:ip netns exec at_ns0 ip link set dev veth0 up mtu 1500 0 nsec add_vxlan_tunnel:PASS:ip netns exec at_ns0 ip link add dev vxlan00 type vxlan external gbp dstport 4789 0 nsec add_vxlan_tunnel:PASS:ip netns exec at_ns0 ip link set dev vxlan00 address 52:54:00:d9:01:00 up 0 nsec add_vxlan_tunnel:PASS:ip netns exec at_ns0 ip addr add dev vxlan00 10.1.1.100/24 0 nsec add_vxlan_tunnel:PASS:ip netns exec at_ns0 ip neigh add 10.1.1.200 lladdr 52:54:00:d9:02:00 dev vxlan00 0 nsec add_vxlan_tunnel:PASS:ip link add dev vxlan11 type vxlan external gbp dstport 4789 0 nsec add_vxlan_tunnel:PASS:ip link set dev vxlan11 address 52:54:00:d9:02:00 up 0 nsec add_vxlan_tunnel:PASS:ip addr add dev vxlan11 10.1.1.200/24 0 nsec add_vxlan_tunnel:PASS:ip neigh add 10.1.1.100 lladdr 52:54:00:d9:01:00 dev vxlan11 0 nsec test_vxlan_tunnel:PASS:add vxlan tunnel 0 nsec libbpf: prog 'vxlan_get_tunnel_src': BPF program load failed: Invalid argument libbpf: prog 'vxlan_get_tunnel_src': -- BEGIN PROG LOAD LOG -- ; int vxlan_get_tunnel_src(struct __sk_buff *skb) 0: (bf) r7 = r1 1: (b4) w1 = 0 ; __u32 index = 0; 2: (63) *(u32 *)(r10 -60) = r1 last_idx 2 first_idx 0 regs=2 stack=0 before 1: (b4) w1 = 0 3: (bf) r2 = r10 ; 4: (07) r2 += -60 ; local_ip = bpf_map_lookup_elem(&local_ip_map, &index); 5: (18) r1 = 0xffff8ec4dfed6400 7: (85) call bpf_map_lookup_elem#1 8: (bf) r6 = r0 ; if (!local_ip) { 9: (55) if r6 != 0x0 goto pc+5 from 9 to 15: R0_w=map_value(id=0,off=0,ks=4,vs=4,imm=0) R6_w=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=ctx(id=0,off=0,imm=0) R10=fp0 fp-64=mmmm???? ; log_err(ret); 15: (bf) r2 = r10 ; ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0); 16: (07) r2 += -48 17: (bf) r1 = r7 18: (b4) w3 = 44 19: (b7) r4 = 0 20: (85) call bpf_skb_get_tunnel_key#20 last_idx 20 first_idx 0 regs=8 stack=0 before 19: (b7) r4 = 0 regs=8 stack=0 before 18: (b4) w3 = 44 ; if (ret < 0) { 21: (66) if w0 s> 0xffffffff goto pc+6 from 21 to 28: R0=inv(id=0,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7=ctx(id=0,off=0,imm=0) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-64=mmmm???? ; log_err(ret); 28: (bf) r2 = r10 ; ret = bpf_skb_get_tunnel_opt(skb, &md, sizeof(md)); 29: (07) r2 += -56 30: (bf) r1 = r7 31: (b4) w3 = 4 32: (85) call bpf_skb_get_tunnel_opt#29 last_idx 32 first_idx 21 regs=8 stack=0 before 31: (b4) w3 = 4 33: (bf) r7 = r0 ; if (ret < 0) { 34: (66) if w7 s> 0xffffffff goto pc+5 from 34 to 40: R0_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? ; log_err(ret); 40: (61) r1 = *(u32 *)(r10 -56) ; if (key.local_ipv4 != *local_ip || md.gbp != 0x800FF) { 41: (61) r3 = *(u32 *)(r6 +0) R0_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R1_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? ; if (key.local_ipv4 != *local_ip || md.gbp != 0x800FF) { 42: (61) r2 = *(u32 *)(r10 -20) ; if (key.local_ipv4 != *local_ip || md.gbp != 0x800FF) { 43: (5e) if w2 != w3 goto pc+2 R0_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R1_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R2_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R3_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? 44: (b4) w0 = 0 45: (16) if w1 == 0x800ff goto pc+25 R0=inv0 R1=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R2=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R3=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? ; bpf_printk("vxlan key %d local ip 0x%x remote ip 0x%x gbp 0x%x\n", 46: (7b) *(u64 *)(r10 -88) = r2 47: (7b) *(u64 *)(r10 -72) = r1 48: (61) r1 = *(u32 *)(r10 -48) 49: (7b) *(u64 *)(r10 -96) = r1 50: (61) r1 = *(u32 *)(r10 -44) 51: (7b) *(u64 *)(r10 -80) = r1 52: (bf) r3 = r10 53: (07) r3 += -96 54: (18) r1 = 0xffffabaec02c82af 56: (b4) w2 = 52 57: (b4) w4 = 32 58: (85) call unknown#177 invalid func unknown#177 processed 64 insns (limit 1000000) max_states_per_insn 1 total_states 5 peak_states 5 mark_read 2 -- END PROG LOAD LOG -- libbpf: failed to load program 'vxlan_get_tunnel_src' libbpf: failed to load object 'test_tunnel_kern' libbpf: failed to load BPF skeleton 'test_tunnel_kern': -22 test_vxlan_tunnel:FAIL:test_tunnel_kern__open_and_load unexpected error: -22 #198/1 tunnel/vxlan_tunnel:FAIL add_ip6vxlan_tunnel:PASS:ip netns exec at_ns0 ip -6 addr add ::11/96 dev veth0 0 nsec add_ip6vxlan_tunnel:PASS:ip netns exec at_ns0 ip link set dev veth0 up 0 nsec add_ip6vxlan_tunnel:PASS:ip -6 addr add ::22/96 dev veth1 0 nsec add_ip6vxlan_tunnel:PASS:ip -6 addr add ::bb/96 dev veth1 0 nsec add_ip6vxlan_tunnel:PASS:ip link set dev veth1 up 0 nsec add_ip6vxlan_tunnel:PASS:ip netns exec at_ns0 ip link add dev ip6vxlan00 type vxlan external dstport 4789 0 nsec add_ip6vxlan_tunnel:PASS:ip netns exec at_ns0 ip addr add dev ip6vxlan00 10.1.1.100/24 0 nsec add_ip6vxlan_tunnel:PASS:ip netns exec at_ns0 ip link set dev ip6vxlan00 address 52:54:00:d9:01:00 up 0 nsec add_ip6vxlan_tunnel:PASS:ip link add dev ip6vxlan11 type vxlan external dstport 4789 0 nsec add_ip6vxlan_tunnel:PASS:ip addr add dev ip6vxlan11 10.1.1.200/24 0 nsec add_ip6vxlan_tunnel:PASS:ip link set dev ip6vxlan11 address 52:54:00:d9:02:00 up 0 nsec test_ip6vxlan_tunnel:PASS:add_ip6vxlan_tunnel 0 nsec libbpf: prog 'vxlan_get_tunnel_src': BPF program load failed: Invalid argument libbpf: prog 'vxlan_get_tunnel_src': -- BEGIN PROG LOAD LOG -- ; int vxlan_get_tunnel_src(struct __sk_buff *skb) 0: (bf) r7 = r1 1: (b4) w1 = 0 ; __u32 index = 0; 2: (63) *(u32 *)(r10 -60) = r1 last_idx 2 first_idx 0 regs=2 stack=0 before 1: (b4) w1 = 0 3: (bf) r2 = r10 ; 4: (07) r2 += -60 ; local_ip = bpf_map_lookup_elem(&local_ip_map, &index); 5: (18) r1 = 0xffff8ec4de898600 7: (85) call bpf_map_lookup_elem#1 8: (bf) r6 = r0 ; if (!local_ip) { 9: (55) if r6 != 0x0 goto pc+5 from 9 to 15: R0_w=map_value(id=0,off=0,ks=4,vs=4,imm=0) R6_w=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=ctx(id=0,off=0,imm=0) R10=fp0 fp-64=mmmm???? ; log_err(ret); 15: (bf) r2 = r10 ; ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0); 16: (07) r2 += -48 17: (bf) r1 = r7 18: (b4) w3 = 44 19: (b7) r4 = 0 20: (85) call bpf_skb_get_tunnel_key#20 last_idx 20 first_idx 0 regs=8 stack=0 before 19: (b7) r4 = 0 regs=8 stack=0 before 18: (b4) w3 = 44 ; if (ret < 0) { 21: (66) if w0 s> 0xffffffff goto pc+6 from 21 to 28: R0=inv(id=0,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7=ctx(id=0,off=0,imm=0) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-64=mmmm???? ; log_err(ret); 28: (bf) r2 = r10 ; ret = bpf_skb_get_tunnel_opt(skb, &md, sizeof(md)); 29: (07) r2 += -56 30: (bf) r1 = r7 31: (b4) w3 = 4 32: (85) call bpf_skb_get_tunnel_opt#29 last_idx 32 first_idx 21 regs=8 stack=0 before 31: (b4) w3 = 4 33: (bf) r7 = r0 ; if (ret < 0) { 34: (66) if w7 s> 0xffffffff goto pc+5 from 34 to 40: R0_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? ; log_err(ret); 40: (61) r1 = *(u32 *)(r10 -56) ; if (key.local_ipv4 != *local_ip || md.gbp != 0x800FF) { 41: (61) r3 = *(u32 *)(r6 +0) R0_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R1_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? ; if (key.local_ipv4 != *local_ip || md.gbp != 0x800FF) { 42: (61) r2 = *(u32 *)(r10 -20) ; if (key.local_ipv4 != *local_ip || md.gbp != 0x800FF) { 43: (5e) if w2 != w3 goto pc+2 R0_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R1_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R2_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R3_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? 44: (b4) w0 = 0 45: (16) if w1 == 0x800ff goto pc+25 R0=inv0 R1=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R2=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R3=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? ; bpf_printk("vxlan key %d local ip 0x%x remote ip 0x%x gbp 0x%x\n", 46: (7b) *(u64 *)(r10 -88) = r2 47: (7b) *(u64 *)(r10 -72) = r1 48: (61) r1 = *(u32 *)(r10 -48) 49: (7b) *(u64 *)(r10 -96) = r1 50: (61) r1 = *(u32 *)(r10 -44) 51: (7b) *(u64 *)(r10 -80) = r1 52: (bf) r3 = r10 53: (07) r3 += -96 54: (18) r1 = 0xffffabaec02c82af 56: (b4) w2 = 52 57: (b4) w4 = 32 58: (85) call unknown#177 invalid func unknown#177 processed 64 insns (limit 1000000) max_states_per_insn 1 total_states 5 peak_states 5 mark_read 2 -- END PROG LOAD LOG -- libbpf: failed to load program 'vxlan_get_tunnel_src' libbpf: failed to load object 'test_tunnel_kern' libbpf: failed to load BPF skeleton 'test_tunnel_kern': -22 test_ip6vxlan_tunnel:FAIL:test_tunnel_kern__open_and_load unexpected error: -22 serial_test_tunnel:PASS:pthread_join 0 nsec #198/2 tunnel/ip6vxlan_tunnel:FAIL #198 tunnel:FAIL All error logs: serial_test_tunnel:PASS:pthread_create 0 nsec config_device:PASS:ip netns add at_ns0 0 nsec config_device:PASS:ip link add veth0 type veth peer name veth1 0 nsec config_device:PASS:ip link set veth0 netns at_ns0 0 nsec config_device:PASS:ip addr add 172.16.1.200/24 dev veth1 0 nsec config_device:PASS:ip addr add 172.16.1.20/24 dev veth1 0 nsec config_device:PASS:ip link set dev veth1 up mtu 1500 0 nsec config_device:PASS:ip netns exec at_ns0 ip addr add 172.16.1.100/24 dev veth0 0 nsec config_device:PASS:ip netns exec at_ns0 ip link set dev veth0 up mtu 1500 0 nsec add_vxlan_tunnel:PASS:ip netns exec at_ns0 ip link add dev vxlan00 type vxlan external gbp dstport 4789 0 nsec add_vxlan_tunnel:PASS:ip netns exec at_ns0 ip link set dev vxlan00 address 52:54:00:d9:01:00 up 0 nsec add_vxlan_tunnel:PASS:ip netns exec at_ns0 ip addr add dev vxlan00 10.1.1.100/24 0 nsec add_vxlan_tunnel:PASS:ip netns exec at_ns0 ip neigh add 10.1.1.200 lladdr 52:54:00:d9:02:00 dev vxlan00 0 nsec add_vxlan_tunnel:PASS:ip link add dev vxlan11 type vxlan external gbp dstport 4789 0 nsec add_vxlan_tunnel:PASS:ip link set dev vxlan11 address 52:54:00:d9:02:00 up 0 nsec add_vxlan_tunnel:PASS:ip addr add dev vxlan11 10.1.1.200/24 0 nsec add_vxlan_tunnel:PASS:ip neigh add 10.1.1.100 lladdr 52:54:00:d9:01:00 dev vxlan11 0 nsec test_vxlan_tunnel:PASS:add vxlan tunnel 0 nsec libbpf: prog 'vxlan_get_tunnel_src': BPF program load failed: Invalid argument libbpf: prog 'vxlan_get_tunnel_src': -- BEGIN PROG LOAD LOG -- ; int vxlan_get_tunnel_src(struct __sk_buff *skb) 0: (bf) r7 = r1 1: (b4) w1 = 0 ; __u32 index = 0; 2: (63) *(u32 *)(r10 -60) = r1 last_idx 2 first_idx 0 regs=2 stack=0 before 1: (b4) w1 = 0 3: (bf) r2 = r10 ; 4: (07) r2 += -60 ; local_ip = bpf_map_lookup_elem(&local_ip_map, &index); 5: (18) r1 = 0xffff8ec4dfed6400 7: (85) call bpf_map_lookup_elem#1 8: (bf) r6 = r0 ; if (!local_ip) { 9: (55) if r6 != 0x0 goto pc+5 from 9 to 15: R0_w=map_value(id=0,off=0,ks=4,vs=4,imm=0) R6_w=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=ctx(id=0,off=0,imm=0) R10=fp0 fp-64=mmmm???? ; log_err(ret); 15: (bf) r2 = r10 ; ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0); 16: (07) r2 += -48 17: (bf) r1 = r7 18: (b4) w3 = 44 19: (b7) r4 = 0 20: (85) call bpf_skb_get_tunnel_key#20 last_idx 20 first_idx 0 regs=8 stack=0 before 19: (b7) r4 = 0 regs=8 stack=0 before 18: (b4) w3 = 44 ; if (ret < 0) { 21: (66) if w0 s> 0xffffffff goto pc+6 from 21 to 28: R0=inv(id=0,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7=ctx(id=0,off=0,imm=0) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-64=mmmm???? ; log_err(ret); 28: (bf) r2 = r10 ; ret = bpf_skb_get_tunnel_opt(skb, &md, sizeof(md)); 29: (07) r2 += -56 30: (bf) r1 = r7 31: (b4) w3 = 4 32: (85) call bpf_skb_get_tunnel_opt#29 last_idx 32 first_idx 21 regs=8 stack=0 before 31: (b4) w3 = 4 33: (bf) r7 = r0 ; if (ret < 0) { 34: (66) if w7 s> 0xffffffff goto pc+5 from 34 to 40: R0_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? ; log_err(ret); 40: (61) r1 = *(u32 *)(r10 -56) ; if (key.local_ipv4 != *local_ip || md.gbp != 0x800FF) { 41: (61) r3 = *(u32 *)(r6 +0) R0_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R1_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? ; if (key.local_ipv4 != *local_ip || md.gbp != 0x800FF) { 42: (61) r2 = *(u32 *)(r10 -20) ; if (key.local_ipv4 != *local_ip || md.gbp != 0x800FF) { 43: (5e) if w2 != w3 goto pc+2 R0_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R1_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R2_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R3_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? 44: (b4) w0 = 0 45: (16) if w1 == 0x800ff goto pc+25 R0=inv0 R1=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R2=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R3=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? ; bpf_printk("vxlan key %d local ip 0x%x remote ip 0x%x gbp 0x%x\n", 46: (7b) *(u64 *)(r10 -88) = r2 47: (7b) *(u64 *)(r10 -72) = r1 48: (61) r1 = *(u32 *)(r10 -48) 49: (7b) *(u64 *)(r10 -96) = r1 50: (61) r1 = *(u32 *)(r10 -44) 51: (7b) *(u64 *)(r10 -80) = r1 52: (bf) r3 = r10 53: (07) r3 += -96 54: (18) r1 = 0xffffabaec02c82af 56: (b4) w2 = 52 57: (b4) w4 = 32 58: (85) call unknown#177 invalid func unknown#177 processed 64 insns (limit 1000000) max_states_per_insn 1 total_states 5 peak_states 5 mark_read 2 -- END PROG LOAD LOG -- libbpf: failed to load program 'vxlan_get_tunnel_src' libbpf: failed to load object 'test_tunnel_kern' libbpf: failed to load BPF skeleton 'test_tunnel_kern': -22 test_vxlan_tunnel:FAIL:test_tunnel_kern__open_and_load unexpected error: -22 #198/1 tunnel/vxlan_tunnel:FAIL add_ip6vxlan_tunnel:PASS:ip netns exec at_ns0 ip -6 addr add ::11/96 dev veth0 0 nsec add_ip6vxlan_tunnel:PASS:ip netns exec at_ns0 ip link set dev veth0 up 0 nsec add_ip6vxlan_tunnel:PASS:ip -6 addr add ::22/96 dev veth1 0 nsec add_ip6vxlan_tunnel:PASS:ip -6 addr add ::bb/96 dev veth1 0 nsec add_ip6vxlan_tunnel:PASS:ip link set dev veth1 up 0 nsec add_ip6vxlan_tunnel:PASS:ip netns exec at_ns0 ip link add dev ip6vxlan00 type vxlan external dstport 4789 0 nsec add_ip6vxlan_tunnel:PASS:ip netns exec at_ns0 ip addr add dev ip6vxlan00 10.1.1.100/24 0 nsec add_ip6vxlan_tunnel:PASS:ip netns exec at_ns0 ip link set dev ip6vxlan00 address 52:54:00:d9:01:00 up 0 nsec add_ip6vxlan_tunnel:PASS:ip link add dev ip6vxlan11 type vxlan external dstport 4789 0 nsec add_ip6vxlan_tunnel:PASS:ip addr add dev ip6vxlan11 10.1.1.200/24 0 nsec add_ip6vxlan_tunnel:PASS:ip link set dev ip6vxlan11 address 52:54:00:d9:02:00 up 0 nsec test_ip6vxlan_tunnel:PASS:add_ip6vxlan_tunnel 0 nsec libbpf: prog 'vxlan_get_tunnel_src': BPF program load failed: Invalid argument libbpf: prog 'vxlan_get_tunnel_src': -- BEGIN PROG LOAD LOG -- ; int vxlan_get_tunnel_src(struct __sk_buff *skb) 0: (bf) r7 = r1 1: (b4) w1 = 0 ; __u32 index = 0; 2: (63) *(u32 *)(r10 -60) = r1 last_idx 2 first_idx 0 regs=2 stack=0 before 1: (b4) w1 = 0 3: (bf) r2 = r10 ; 4: (07) r2 += -60 ; local_ip = bpf_map_lookup_elem(&local_ip_map, &index); 5: (18) r1 = 0xffff8ec4de898600 7: (85) call bpf_map_lookup_elem#1 8: (bf) r6 = r0 ; if (!local_ip) { 9: (55) if r6 != 0x0 goto pc+5 from 9 to 15: R0_w=map_value(id=0,off=0,ks=4,vs=4,imm=0) R6_w=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=ctx(id=0,off=0,imm=0) R10=fp0 fp-64=mmmm???? ; log_err(ret); 15: (bf) r2 = r10 ; ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0); 16: (07) r2 += -48 17: (bf) r1 = r7 18: (b4) w3 = 44 19: (b7) r4 = 0 20: (85) call bpf_skb_get_tunnel_key#20 last_idx 20 first_idx 0 regs=8 stack=0 before 19: (b7) r4 = 0 regs=8 stack=0 before 18: (b4) w3 = 44 ; if (ret < 0) { 21: (66) if w0 s> 0xffffffff goto pc+6 from 21 to 28: R0=inv(id=0,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7=ctx(id=0,off=0,imm=0) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-64=mmmm???? ; log_err(ret); 28: (bf) r2 = r10 ; ret = bpf_skb_get_tunnel_opt(skb, &md, sizeof(md)); 29: (07) r2 += -56 30: (bf) r1 = r7 31: (b4) w3 = 4 32: (85) call bpf_skb_get_tunnel_opt#29 last_idx 32 first_idx 21 regs=8 stack=0 before 31: (b4) w3 = 4 33: (bf) r7 = r0 ; if (ret < 0) { 34: (66) if w7 s> 0xffffffff goto pc+5 from 34 to 40: R0_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? ; log_err(ret); 40: (61) r1 = *(u32 *)(r10 -56) ; if (key.local_ipv4 != *local_ip || md.gbp != 0x800FF) { 41: (61) r3 = *(u32 *)(r6 +0) R0_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R1_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? ; if (key.local_ipv4 != *local_ip || md.gbp != 0x800FF) { 42: (61) r2 = *(u32 *)(r10 -20) ; if (key.local_ipv4 != *local_ip || md.gbp != 0x800FF) { 43: (5e) if w2 != w3 goto pc+2 R0_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R1_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R2_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R3_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7_w=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? 44: (b4) w0 = 0 45: (16) if w1 == 0x800ff goto pc+25 R0=inv0 R1=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R2=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R3=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R6=map_value(id=0,off=0,ks=4,vs=4,imm=0) R7=inv(id=2,smax_value=9223372034707292159,umax_value=18446744071562067967,var_off=(0x0; 0xffffffff7fffffff),s32_min_value=0,u32_max_value=2147483647) R10=fp0 fp-8=????mmmm fp-16=mmmmmmmm fp-24=mmmmmmmm fp-32=mmmmmmmm fp-40=mmmmmmmm fp-48=mmmmmmmm fp-56=????mmmm fp-64=mmmm???? ; bpf_printk("vxlan key %d local ip 0x%x remote ip 0x%x gbp 0x%x\n", 46: (7b) *(u64 *)(r10 -88) = r2 47: (7b) *(u64 *)(r10 -72) = r1 48: (61) r1 = *(u32 *)(r10 -48) 49: (7b) *(u64 *)(r10 -96) = r1 50: (61) r1 = *(u32 *)(r10 -44) 51: (7b) *(u64 *)(r10 -80) = r1 52: (bf) r3 = r10 53: (07) r3 += -96 54: (18) r1 = 0xffffabaec02c82af 56: (b4) w2 = 52 57: (b4) w4 = 32 58: (85) call unknown#177 invalid func unknown#177 processed 64 insns (limit 1000000) max_states_per_insn 1 total_states 5 peak_states 5 mark_read 2 -- END PROG LOAD LOG -- libbpf: failed to load program 'vxlan_get_tunnel_src' libbpf: failed to load object 'test_tunnel_kern' libbpf: failed to load BPF skeleton 'test_tunnel_kern': -22 test_ip6vxlan_tunnel:FAIL:test_tunnel_kern__open_and_load unexpected error: -22 serial_test_tunnel:PASS:pthread_join 0 nsec #198/2 tunnel/ip6vxlan_tunnel:FAIL #198 tunnel:FAIL Summary: 0/0 PASSED, 0 SKIPPED, 1 FAILED
