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

Petr Vorel
2021-03-09T14:54:46Z

Hi Gongyi,

> > > When CommitLimit - Committed_AS < 128, there is no post processing,
> > > and the test will report "TBROK: Test haven't reported results".
Actually, I have problem for CommitLimit - Committed_AS < 5280
(depends on actual system).

But that means that even check for max_iters < 0 is not enough,
because while (max_maps <= max_iters) block should be run@least once
to avoid TBROK: Test haven't reported results!

max_maps is always 1024, thus how about this?

max_maps = MAP_COUNT_DEFAULT;
+ if (max_iters < max_maps)
+ tst_brk(TCONF, "test requires more free memory");

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

> We are testing linux on some different embedded systems whose hw resource is limited.
Thanks for info.

Kind regards,
Petr