[LTP] [PATCH] lib/tst_test.c: add *cleanup() before exit

[zhaogongyi]

Hi Cyril,

If we run the LTP testcases Concurrently, this might trigger the oom killer to kill the library process before the main process exit, and it might fill up the tmpfs through a long time running.


Thanks so much!
Gongyi

> 
> Hi!
> > If the main process exit without *cleanup() and when the lib process
> > has exit, the test environment would not be reset when the testcase
> > needs resource of device or tmpfs.
> 
> This looks like working around the real problem. The test library process is
> supposed to outlive the child in all circumstances.
> 
> What exactly happens in your case that this code gets triggered?
> 
> --
> Cyril Hrubis
> chrubis@suse.cz