On 05/27/2018 09:37 PM, Prashant Bhole wrote:
> Test failures are not identified because exit code of RX/TX threads
> is not checked. Also threads are not returning correct exit code.
>
> - Return exit code from threads depending on test execution status
> - In main thread, check the exit code of RX/TX threads
>
> Fixes: 16962b2404ac ("bpf: sockmap, add selftests")
> Signed-off-by: Prashant Bhole <bhole_prashant_q7@xxxxxxxxxxxxx>
> ---
Acked-by: John Fastabend <john.fastabend@xxxxxxxxx>
> tools/testing/selftests/bpf/test_sockmap.c | 25 ++++++++++++++++------
> 1 file changed, 19 insertions(+), 6 deletions(-)
>
> diff --git a/tools/testing/selftests/bpf/test_sockmap.c b/tools/testing/selftests/bpf/test_sockmap.c
> index eb17fae458e6..34feb74c95c4 100644
> --- a/tools/testing/selftests/bpf/test_sockmap.c
> +++ b/tools/testing/selftests/bpf/test_sockmap.c
> @@ -429,8 +429,8 @@ static int sendmsg_test(struct sockmap_options *opt)
> struct msg_stats s = {0};
> int iov_count = opt->iov_count;
> int iov_buf = opt->iov_length;
> + int rx_status, tx_status;
> int cnt = opt->rate;
> - int status;
>
> errno = 0;
>
> @@ -442,7 +442,7 @@ static int sendmsg_test(struct sockmap_options *opt)
> rxpid = fork();
> if (rxpid == 0) {
> if (opt->drop_expected)
> - exit(1);
> + exit(0);
>
> if (opt->sendpage)
> iov_count = 1;
> @@ -463,7 +463,7 @@ static int sendmsg_test(struct sockmap_options *opt)
> "rx_sendmsg: TX: %zuB %fB/s %fGB/s RX: %zuB %fB/s %fGB/s\n",
> s.bytes_sent, sent_Bps, sent_Bps/giga,
> s.bytes_recvd, recvd_Bps, recvd_Bps/giga);
> - exit(1);
> + exit(err ? 1 : 0);
> } else if (rxpid == -1) {
> perror("msg_loop_rx: ");
> return errno;
> @@ -491,14 +491,27 @@ static int sendmsg_test(struct sockmap_options *opt)
> "tx_sendmsg: TX: %zuB %fB/s %f GB/s RX: %zuB %fB/s %fGB/s\n",
> s.bytes_sent, sent_Bps, sent_Bps/giga,
> s.bytes_recvd, recvd_Bps, recvd_Bps/giga);
> - exit(1);
> + exit(err ? 1 : 0);
> } else if (txpid == -1) {
> perror("msg_loop_tx: ");
> return errno;
> }
>
> - assert(waitpid(rxpid, &status, 0) == rxpid);
> - assert(waitpid(txpid, &status, 0) == txpid);
> + assert(waitpid(rxpid, &rx_status, 0) == rxpid);
> + assert(waitpid(txpid, &tx_status, 0) == txpid);
> + if (WIFEXITED(rx_status)) {
> + err = WEXITSTATUS(rx_status);
> + if (err) {
> + fprintf(stderr, "rx thread exited with err %d. ", err);
> + goto out;
> + }
> + }
> + if (WIFEXITED(tx_status)) {
> + err = WEXITSTATUS(tx_status);
> + if (err)
> + fprintf(stderr, "tx thread exited with err %d. ", err);
> + }
> +out:
> return err;
> }
>
>
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