[LTP] [PATCH] max_map_count: Add judgment of abnormal situation

Petr Vorel
2021-03-09T12:46:16Z

Hi,

> When CommitLimit - Committed_AS < 128, there is no post processing,
> and the test will report "TBROK: Test haven't reported results".

> Signed-off-by: Zhao Gongyi <zhaogongyi@huawei.com>
> ---
> testcases/kernel/mem/tunable/max_map_count.c | 2 ++
> 1 file changed, 2 insertions(+)

> diff --git a/testcases/kernel/mem/tunable/max_map_count.c b/testcases/kernel/mem/tunable/max_map_count.c
> index aa70fde59..ffc53cbb5 100644
> --- a/testcases/kernel/mem/tunable/max_map_count.c
> +++ b/testcases/kernel/mem/tunable/max_map_count.c
> @@ -162,6 +162,8 @@ static void max_map_count_test(void)
> max_iters = memfree / sysconf(_SC_PAGESIZE) * 1024 - 64;
> if (max_iters > MAX_MAP_COUNT)
> max_iters = MAX_MAP_COUNT;
> + if (max_iters < 0)
> + tst_brk(TCONF, "Test nees max_iters > 0, test skipped");
typo: nees => needs (no need to repost, can be changed during merge).

Reviewed-by: Petr Vorel <pvorel@suse.cz>

You seems to exploring limits. Out of curiosity, which system / hw do you test?

Kind regards,
Petr

> max_maps = MAP_COUNT_DEFAULT;
> while (max_maps <= max_iters) {