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| author | Yonghong Song <yhs@fb.com> | 2017-11-30 08:52:42 -0800 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2017-11-30 19:55:18 +0100 |
| commit | 2b279419567105d63f1e524bb1ac34ae8f918e5d (patch) | |
| tree | 92203e2f3d39166854b9cd0513fe08d98ae9f81a /tools | |
| parent | 23721a755f98ac846897a013c92cccb281c1bcc8 (diff) | |
| download | linux-2b279419567105d63f1e524bb1ac34ae8f918e5d.tar.gz linux-2b279419567105d63f1e524bb1ac34ae8f918e5d.tar.bz2 linux-2b279419567105d63f1e524bb1ac34ae8f918e5d.zip | |
tools/bpf: adjust rlimit RLIMIT_MEMLOCK for test_verifier_log
The default rlimit RLIMIT_MEMLOCK is 64KB. In certain cases,
e.g. in a test machine mimicking our production system, this test may
fail due to unable to charge the required memory for prog load:
# ./test_verifier_log
Test log_level 0...
ERROR: Program load returned: ret:-1/errno:1, expected ret:-1/errno:22
Changing the default rlimit RLIMIT_MEMLOCK to unlimited makes
the test always pass.
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/bpf/test_verifier_log.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/test_verifier_log.c b/tools/testing/selftests/bpf/test_verifier_log.c index 3cc0b561489e..e9626cf5607a 100644 --- a/tools/testing/selftests/bpf/test_verifier_log.c +++ b/tools/testing/selftests/bpf/test_verifier_log.c @@ -3,6 +3,8 @@ #include <stdio.h> #include <string.h> #include <unistd.h> +#include <sys/time.h> +#include <sys/resource.h> #include <linux/bpf.h> #include <linux/filter.h> @@ -131,11 +133,16 @@ static void test_log_bad(char *log, size_t log_len, int log_level) int main(int argc, char **argv) { + struct rlimit limit = { RLIM_INFINITY, RLIM_INFINITY }; char full_log[LOG_SIZE]; char log[LOG_SIZE]; size_t want_len; int i; + /* allow unlimited locked memory to have more consistent error code */ + if (setrlimit(RLIMIT_MEMLOCK, &limit) < 0) + perror("Unable to lift memlock rlimit"); + memset(log, 1, LOG_SIZE); /* Test incorrect attr */ |