These two issues are caused by the following commits which are missing
some pre-reqs:
selftests/bpf: Skip perf hw events test if the setup disabled it
selftests/bpf: Fix perf_buffer test on systems w/ offline CPUs
They were both introduced by bug 1867051 ("Eoan update: upstream stable
patchset 2020-03-11").
I will remove these commits from eoan/linux while we work on patches to
re-introduce these changes with the necessary pre-reqs.
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https://bugs.launchpad.net/bugs/1867596
Title:
ubuntu_bpf test failed to build on Eoan 5.3.0-43.35
Status in ubuntu-kernel-tests:
New
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Eoan:
In Progress
Bug description:
Issue found on Eoan with tip b864ec039 (UBUNTU: Ubuntu-5.3.0-43.35)
Caused by 3769128 (selftests/bpf: Skip perf hw events test if the
setup disabled it)
$ sudo make run_tests TARGETS=bpf
make --no-builtin-rules ARCH=x86 -C ../../.. headers_install
make[1]: Entering directory '/home/ubuntu/ubuntu-eoan'
SYSTBL arch/x86/include/generated/asm/syscalls_32.h
SYSHDR arch/x86/include/generated/uapi/asm/unistd_32.h
HDRINST usr/include/linux/btf.h
HDRINST usr/include/linux/input.h
HDRINST usr/include/linux/netfilter/xt_sctp.h
REMOVE usr/include/rdma/nes-abi.h
HDRINST usr/include/asm/unistd_32.h
INSTALL ./usr/include
make[1]: Leaving directory '/home/ubuntu/ubuntu-eoan'
make[1]: Entering directory
'/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf'
/bin/sh: 1: llvm-readelf: not found
make -C ../../../lib/bpf
OUTPUT=/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/
make[2]: Entering directory '/home/ubuntu/ubuntu-eoan/tools/lib/bpf'
Warning: Kernel ABI header at 'tools/include/uapi/linux/if_link.h' differs
from latest version at 'include/uapi/linux/if_link.h'
CC /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/libbpf.o
CC /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/bpf.o
CC /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/btf.o
CC
/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/bpf_prog_linfo.o
LD /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/libbpf-in.o
LINK /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/libbpf.a
LINK
/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/libbpf.so.0.0.4
LINK /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_libbpf
make[2]: Leaving directory '/home/ubuntu/ubuntu-eoan/tools/lib/bpf'
gcc -g -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../lib/bpf
-I../../../../include/generated -I../../../include
-Dbpf_prog_load=bpf_prog_test_load -Dbpf_load_program=bpf_test_load_program -I.
-I/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf -Iverifier
test_verifier.c
/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_stub.o
/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/libbpf.a -lcap -lelf -lrt
-lpthread -o /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_verifier
gcc -g -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../lib/bpf
-I../../../../include/generated -I../../../include
-Dbpf_prog_load=bpf_prog_test_load -Dbpf_load_program=bpf_test_load_program
test_tag.c /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_stub.o
/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/libbpf.a -lcap -lelf -lrt
-lpthread -o /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_tag
gcc -g -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../lib/bpf
-I../../../../include/generated -I../../../include
-Dbpf_prog_load=bpf_prog_test_load -Dbpf_load_program=bpf_test_load_program -I.
-I/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf test_maps.c
/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_stub.o
/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/libbpf.a
map_tests/sk_storage_map.c -lcap -lelf -lrt -lpthread -o
/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_maps
gcc -g -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../lib/bpf
-I../../../../include/generated -I../../../include
-Dbpf_prog_load=bpf_prog_test_load -Dbpf_load_program=bpf_test_load_program
test_lru_map.c /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_stub.o
/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/libbpf.a -lcap -lelf -lrt
-lpthread -o /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_lru_map
gcc -g -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../lib/bpf
-I../../../../include/generated -I../../../include
-Dbpf_prog_load=bpf_prog_test_load -Dbpf_load_program=bpf_test_load_program
test_lpm_map.c /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_stub.o
/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/libbpf.a -lcap -lelf -lrt
-lpthread -o /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_lpm_map
gcc -g -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../lib/bpf
-I../../../../include/generated -I../../../include
-Dbpf_prog_load=bpf_prog_test_load -Dbpf_load_program=bpf_test_load_program -I.
-I/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf test_progs.c
/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_stub.o
/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/libbpf.a trace_helpers.c
prog_tests/attach_probe.c prog_tests/stacktrace_map.c
prog_tests/raw_tp_writable_test_run.c prog_tests/xdp_adjust_tail.c
prog_tests/bpf_verif_scale.c prog_tests/signal_pending.c
prog_tests/send_signal.c prog_tests/stacktrace_build_id.c
prog_tests/reference_tracking.c prog_tests/get_stack_raw_tp.c
prog_tests/prog_run_xattr.c prog_tests/task_fd_query_tp.c
prog_tests/tp_attach_query.c prog_tests/spinlock.c prog_tests/pkt_md_access.c
prog_tests/stacktrace_build_id_nmi.c prog_tests/bpf_obj_id.c
prog_tests/queue_stack_map.c prog_tests/stacktrace_map_raw_tp.c
prog_tests/task_fd_query_rawtp.c prog_tests/xdp.c prog_tests/skb_ctx.c
prog_tests/tcp_estats.c prog_tests/perf_buffer.c
prog_tests/raw_tp_writable_reject_nbd_invalid.c prog_tests/flow_dissector.c
prog_tests/l4lb_all.c prog_tests/flow_dissector_load_bytes.c
prog_tests/obj_name.c prog_tests/map_lock.c prog_tests/xdp_noinline.c
prog_tests/pkt_access.c -lcap -lelf -lrt -lpthread -o
/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_progs
prog_tests/send_signal.c: In function ‘test_send_signal_common’:
prog_tests/send_signal.c:52:3: warning: ignoring return value of ‘write’,
declared with attribute warn_unused_result [-Wunused-result]
write(pipe_c2p[1], buf, 1);
^~~~~~~~~~~~~~~~~~~~~~~~~~
prog_tests/send_signal.c:55:3: warning: ignoring return value of ‘read’,
declared with attribute warn_unused_result [-Wunused-result]
read(pipe_p2c[0], buf, 1);
^~~~~~~~~~~~~~~~~~~~~~~~~
prog_tests/send_signal.c:61:4: warning: ignoring return value of ‘write’,
declared with attribute warn_unused_result [-Wunused-result]
write(pipe_c2p[1], "2", 1);
^~~~~~~~~~~~~~~~~~~~~~~~~~
prog_tests/send_signal.c:63:4: warning: ignoring return value of ‘write’,
declared with attribute warn_unused_result [-Wunused-result]
write(pipe_c2p[1], "0", 1);
^~~~~~~~~~~~~~~~~~~~~~~~~~
prog_tests/send_signal.c:66:3: warning: ignoring return value of ‘read’,
declared with attribute warn_unused_result [-Wunused-result]
read(pipe_p2c[0], buf, 1);
^~~~~~~~~~~~~~~~~~~~~~~~~
prog_tests/send_signal.c:109:2: warning: ignoring return value of ‘read’,
declared with attribute warn_unused_result [-Wunused-result]
read(pipe_c2p[0], buf, 1);
^~~~~~~~~~~~~~~~~~~~~~~~~
prog_tests/send_signal.c:117:2: warning: ignoring return value of ‘write’,
declared with attribute warn_unused_result [-Wunused-result]
write(pipe_p2c[1], buf, 1);
^~~~~~~~~~~~~~~~~~~~~~~~~~
prog_tests/send_signal.c:131:2: warning: ignoring return value of ‘write’,
declared with attribute warn_unused_result [-Wunused-result]
write(pipe_p2c[1], buf, 1);
^~~~~~~~~~~~~~~~~~~~~~~~~~
prog_tests/stacktrace_build_id_nmi.c: In function
‘test_stacktrace_build_id_nmi’:
prog_tests/stacktrace_build_id_nmi.c:54:3: warning: implicit declaration of
function ‘test__skip’ [-Wimplicit-function-declaration]
test__skip();
^~~~~~~~~~
prog_tests/stacktrace_build_id_nmi.c:55:3: error: label ‘cleanup’ used but
not defined
goto cleanup;
^~~~
prog_tests/stacktrace_build_id_nmi.c: In function ‘read_perf_max_sample_freq’:
prog_tests/stacktrace_build_id_nmi.c:12:2: warning: ignoring return value of
‘fscanf’, declared with attribute warn_unused_result [-Wunused-result]
fscanf(f, "%llu", &sample_freq);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
prog_tests/perf_buffer.c: In function ‘test_perf_buffer’:
prog_tests/perf_buffer.c:39:8: warning: implicit declaration of function
‘parse_cpu_mask_file’ [-Wimplicit-function-declaration]
err = parse_cpu_mask_file("/sys/devices/system/cpu/online",
^~~~~~~~~~~~~~~~~~~
../lib.mk:138: recipe for target
'/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_progs' failed
make[1]: ***
[/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_progs] Error 1
make[1]: Leaving directory
'/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf'
Makefile:136: recipe for target 'all' failed
make: *** [all] Error 2
We added a goto cleanup, but the cleanup is missing. Probably we need
dde53c1b7 (selftests/bpf: Convert few more selftest to skeletons)
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