netdev - [selftests/bpf] 84da156938: kernel_selftests.bpf.test

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Date:   Thu, 6 Jun 2019 11:24:06 +0800
From:   kernel test robot <rong.a.chen@...el.com>
To:     Andrii Nakryiko <andriin@...com>
Cc:     andrii.nakryiko@...il.com, netdev@...r.kernel.org,
        bpf@...r.kernel.org, ast@...com, daniel@...earbox.net,
        kernel-team@...com, Andrii Nakryiko <andriin@...com>, lkp@...org
Subject: [selftests/bpf] 84da156938: kernel_selftests.bpf.test_maps.fail

FYI, we noticed the following commit (built with gcc-7):

commit: 84da156938373b0f072b4a1394f199949631a081 ("[RFC PATCH bpf-next 8/8] selftests/bpf: switch tests to BTF-defined map definitions")
url: https://github.com/0day-ci/linux/commits/Andrii-Nakryiko/BTF-defined-BPF-map-definitions/20190602-062423
base: https://git.kernel.org/cgit/linux/kernel/git/bpf/bpf-next.git master

in testcase: kernel_selftests
with following parameters:

	group: kselftests-00

test-description: The kernel contains a set of "self tests" under the tools/testing/selftests/ directory. These are intended to be small unit tests to exercise individual code paths in the kernel.
test-url: https://www.kernel.org/doc/Documentation/kselftest.txt

on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 4G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):

If you fix the issue, kindly add following tag
Reported-by: kernel test robot <rong.a.chen@...el.com>

ok 1 selftests: bpf: test_verifier
# selftests: bpf: test_tag
# test_tag: OK (40945 tests)
ok 2 selftests: bpf: test_tag
# selftests: bpf: test_maps
# libbpf: BTF is required, but is missing or corrupted.
# Failed to load SK_SKB verdict prog
not ok 3 selftests: bpf: test_maps
# selftests: bpf: test_lru_map
# nr_cpus:2
# 
# test_lru_sanity0 (map_type:9 map_flags:0x0): Pass
# test_lru_sanity1 (map_type:9 map_flags:0x0): Pass
# test_lru_sanity2 (map_type:9 map_flags:0x0): Pass
# test_lru_sanity3 (map_type:9 map_flags:0x0): Pass
# test_lru_sanity4 (map_type:9 map_flags:0x0): Pass
# test_lru_sanity5 (map_type:9 map_flags:0x0): Pass
# test_lru_sanity7 (map_type:9 map_flags:0x0): Pass
# test_lru_sanity8 (map_type:9 map_flags:0x0): Pass
# 
# test_lru_sanity0 (map_type:10 map_flags:0x0): Pass
# test_lru_sanity1 (map_type:10 map_flags:0x0): Pass
# test_lru_sanity2 (map_type:10 map_flags:0x0): Pass
# test_lru_sanity3 (map_type:10 map_flags:0x0): Pass
# test_lru_sanity4 (map_type:10 map_flags:0x0): Pass
# test_lru_sanity5 (map_type:10 map_flags:0x0): Pass
# test_lru_sanity7 (map_type:10 map_flags:0x0): Pass
# test_lru_sanity8 (map_type:10 map_flags:0x0): Pass
# 
# test_lru_sanity0 (map_type:9 map_flags:0x2): Pass
# test_lru_sanity4 (map_type:9 map_flags:0x2): Pass
# test_lru_sanity6 (map_type:9 map_flags:0x2): Pass
# test_lru_sanity7 (map_type:9 map_flags:0x2): Pass
# test_lru_sanity8 (map_type:9 map_flags:0x2): Pass
# 
# test_lru_sanity0 (map_type:10 map_flags:0x2): Pass
# test_lru_sanity4 (map_type:10 map_flags:0x2): Pass
# test_lru_sanity6 (map_type:10 map_flags:0x2): Pass
# test_lru_sanity7 (map_type:10 map_flags:0x2): Pass
# test_lru_sanity8 (map_type:10 map_flags:0x2): Pass
# 
ok 4 selftests: bpf: test_lru_map
# selftests: bpf: test_lpm_map
# test_lpm: OK
ok 5 selftests: bpf: test_lpm_map
# selftests: bpf: test_progs

To reproduce:

        # build kernel
	cd linux
	cp config-5.2.0-rc2-00579-g84da156 .config
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 prepare
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 modules_prepare
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 SHELL=/bin/bash
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 bzImage

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email

Thanks,
Rong Chen

View attachment "config-5.2.0-rc2-00579-g84da156" of type "text/plain" (196447 bytes)

View attachment "job-script" of type "text/plain" (6651 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (31772 bytes)

View attachment "kernel_selftests" of type "text/plain" (286654 bytes)