mainline-5.4.0: regressions detected in project mainline

[Naresh Kamboju]

Results from Linaroâs test farm.
Regressions on arm64, arm, x86_64, and i386.
The listed bpf tests failed. please find complete details below.

Summary
------------------------------------------------------------------------

kernel: 5.4.0
git repo: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git branch: master
git commit: 386403a115f95997c2715691226e11a7b5cffcfd
git describe: v5.4-3419-g386403a115f9
Test details: https://qa-reports.linaro.org/lkft/linux-mainline-oe/build/v5.4-3419-g386403a115f9
config: http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/intel-corei7-64/lkft/linux-mainline/2270/config

Regressions (compared to build v5.4)
------------------------------------------------------------------------
  kselftest:
    * bpf_test_dev_cgroup
    * bpf_test_skb_cgroup_id.sh
    * bpf_test_sysctl
    * bpf_test_xdp_meta.sh
    * bpf_test_xdp_redirect.sh
    * bpf_test_xdp_vlan_mode_generic.sh
    * bpf_test_xdp_vlan_mode_native.sh

Test output log:
===========
# selftests bpf test_dev_cgroup
bpf: test_dev_cgroup_ #
# libbpf failed to open ./dev_cgroup.o No such file or directory
failed: to_open #
# Failed to load DEV_CGROUP program
to: load_DEV_CGROUP #
[   75.524368] IPv6: ADDRCONF(NETDEV_CHANGE): test_sock_addr1: link
becomes ready
[FAIL] 9 selftests bpf test_dev_cgroup # exit=1
selftests: bpf_test_dev_cgroup [FAIL]

===
# selftests bpf test_skb_cgroup_id.sh
bpf: test_skb_cgroup_id.sh_ #
# Wait for testing link-local IP to become available ... OK
for: testing_link-local #
# Error opening object ./test_skb_cgroup_id_kern.o No such file or directory
opening: object_./test_skb_cgroup_id_kern.o #
# Cannot initialize ELF context!
initialize: ELF_context! #
# Unable to load program
to: load_program #
[FAIL] 33 selftests bpf test_skb_cgroup_id.sh # exit=1
selftests: bpf_test_skb_cgroup_id.sh [FAIL]

===
# selftests bpf test_sysctl
bpf: test_sysctl_ #
# libbpf failed to open ./test_sysctl_prog.o No such file or directory
failed: to_open #
# (test_sysctl.c1490 errno No such file or directory) >>> Loading
program (./test_sysctl_prog.o) error.
errno: No_suc[   78.078283] ip (1336) used greatest stack depth: 11144
bytes left
h #
#
: _ #
# libbpf failed to open ./test_sysctl_prog.o No such file or directory
failed: to_open #
# (test_sysctl.c1490 errno No such file or directory) >>> Loading
program (./test_sysctl_prog.o) error.
errno: No_such #
#
: _ #
# libbpf failed to open ./test_sysctl_prog.o No such file or directory
failed: to_open #
# (test_sysctl.c1490 errno No such file or directory) >>> Loading
program (./test_sysctl_prog.o) error.
errno: No_such #

...
37: PASSED,_3 #
[FAIL] 20 selftests bpf test_sysctl # exit=255
selftests: bpf_test_sysctl [FAIL]

===
# selftests bpf test_xdp_meta.sh
bpf: test_xdp_meta.sh_ #
# Error opening object test_xdp_meta.o No such file or directory
opening: object_test_xdp_meta.o #
# Cannot initialize ELF context!
initialize: ELF_context! #
# Unable to load program
to: load_program #
# selftests test_xdp_meta [FAILED]
test_xdp_meta: [FAILED]_ #
[FAIL] 26 selftests bpf test_xdp_meta.sh # exit=1
selftests: bpf_test_xdp_meta.sh [FAIL]

===
# selftests bpf test_xdp_redirect.sh
bpf: test_xdp_redirect.sh_ #
# Error opening object test_xdp_redirect.o No such file or directory
opening: object_test_xdp_redirect.o #
# Cannot initialize ELF context!
initialize: ELF_context! #
# selftests test_xdp_redirect [FAILED]
test_xdp_redirect: [FAILED]_ #
[FAIL] 25 selftests bpf test_xdp_redirect.sh # exit=255
selftests: bpf_test_xdp_redirect.sh [FAIL]

===
# selftests bpf test_xdp_vlan_mode_generic.sh
bpf: test_xdp_vlan_mode_generic.sh_ #
# PING 100.64.41.1 (100.64.41.1) 56(84) bytes of data.
100.64.41.1: (100.64.41.1)_56(84) #
#
: _ #
# --- 100.64.41.1 ping statistics ---
100.64.41.1: ping_statistics #
# 1 packets transmitted, 0 received, 100% packet loss, time 0ms
packets: transmitted,_0 #
#
: _ #
# Success First ping must fail
First: ping_must #
# Error opening object test_xdp_vlan.o No such file or directory
opening: object_test_xdp_vlan.o #
# Cannot initialize ELF context!
initialize: ELF_context! #
# selftests xdp_vlan_mode_generic [FAILED]
xdp_vlan_mode_generic: [FAILED]_ #
[FAIL] 35 selftests bpf test_xdp_vlan_mode_generic.sh # exit=255
selftests: bpf_test_xdp_vlan_mode_generic.sh [FAIL]

===
# selftests bpf test_xdp_vlan_mode_native.sh
bpf: test_xdp_vlan_mode_native.sh_ #
# PING 100.64.41.1 (100.64.41.1) 56(84) bytes of data.
100.64.41.1: (100.64.41.1)_56(84) #
#
: _ #
# --- 100.64.41.1 ping statistics ---
100.64.41.1: ping_statistics #
# 1 packets transmitted, 0 received, 100% packet loss, time 0ms
packets: transmitted,_0 #
#
: _ #
# Success First ping must fail
First: ping_must #
# Error opening object test_xdp_vlan.o No such file or directory
opening: object_test_xdp_vlan.o #
# Cannot initialize ELF context!
initialize: ELF_context! #
# selftests xdp_vlan_mode_native [FAILED]
xdp_vlan_mode_native: [FAILED]_ #
[FAIL] 36 selftests bpf test_xdp_vlan_mode_native.sh # exit=255
selftests: bpf_test_xdp_vlan_mode_native.sh [FAIL]

Ref links:
https://lkft.validation.linaro.org/scheduler/job/1024055

Dashboard link,
https://qa-reports.linaro.org/lkft/linux-mainline-oe/tests/kselftest/bpf_test_dev_cgroup
https://qa-reports.linaro.org/lkft/linux-mainline-oe/tests/kselftest/bpf_test_skb_cgroup_id.sh
https://qa-reports.linaro.org/lkft/linux-mainline-oe/tests/kselftest/bpf_test_sysctl
https://qa-reports.linaro.org/lkft/linux-mainline-oe/tests/kselftest/bpf_test_xdp_meta.sh
https://qa-reports.linaro.org/lkft/linux-mainline-oe/tests/kselftest/bpf_test_xdp_redirect.sh
https://qa-reports.linaro.org/lkft/linux-mainline-oe/tests/kselftest/bpf_test_xdp_vlan_mode_generic.sh
https://qa-reports.linaro.org/lkft/linux-mainline-oe/tests/kselftest/bpf_test_xdp_vlan_mode_native.sh

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