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tools/bpf: add a multithreaded stress test in bpf selftests test_lpm_map

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The new test will spawn four threads, doing map update, delete, lookup
and get_next_key in parallel. It is able to reproduce the issue in the
previous commit found by syzbot and Eric Dumazet.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Yonghong Song
2018-01-26 15:06:08 -08:00
committed by Alexei Starovoitov
parent 6dd1ec6c7a
commit af32efeede
2 changed files with 96 additions and 1 deletions
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tools/testing/selftests/bpf/Makefile
+1 -1
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@@ -11,7 +11,7 @@ ifneq ($(wildcard $(GENHDR)),)
endif
CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
LDLIBS += -lcap -lelf -lrt
LDLIBS += -lcap -lelf -lrt -lpthread
TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
test_align test_verifier_log test_dev_cgroup test_tcpbpf_user