[LTP] [PATCH] lib: Check minimal supported kernel version

[Petr Vorel]

> Hi!
> > LTP does not support kernels older than 4.4, but this requirement was
> > only documented in static text without automated runtime validation.

> > Define the minimal supported kernel version in tst_kvercmp.h so that
> > the documentation fetches it dynamically and the core library aborts
> > unsupported kernels with TCONF during test setup.

> Great idea, but I wouldn't tst_brk() on older kernels, I would just
> print a message that there may be failures becuase older kernels are not
> supported or tested.

Yes, exactly, tst_brk() is way too aggressive. tst_res(TINFO) is good enough
to give the information without deliberately break all the tests.

> LTP has been historically used for many different purposes, e.g. for
> testing BSD compatibility layout for running Linux binaries and I fear
> that hard stop on older kernel versions would break these usecases.

+1.

Kind regards,
Petr