[LTP] [PATCH 1/1] min_free_kbytes: TCONF on errno ENOMEM, add break

[Cyril Hrubis]

Hi!
> > This looks suspicious. If we fail with the fork here that probably means
> > that the memory allocated by the previous iteration wasn't reclaimed
> > fast enough. Was this on a second or third iteration (we do three
> > iterations with different overcommit values)?
> 
> This is on one of my bare metal machines, first iteration:
> 
> min_free_kbytes.c:91: TINFO: Setting /proc/sys/vm/overcommit_memory to 2
> min_free_kbytes.c:95: TINFO: Setting /proc/sys/vm/min_free_kbytes to 67584
> min_free_kbytes.c:111: TBROK: fork: ENOMEM (12)
> tst_test.c:1933: TINFO: Killed the leftover descendant processes

With overcommit = 2 (never) this just means that memory on your machine
has been all consumed[1]. It may make sense to TCONF on overcommit=2 but
I'm not so sure the other two overcommit modes.

[1] The available memory is counted as swap + 50% of RAM

-- 
Cyril Hrubis
chrubis@suse.cz