On Mon, Jan 21, 2019 at 3:07 PM Reshetova, Elena <elena.reshet...@intel.com> wrote: > > > Just to check, has this been tested with CONFIG_REFCOUNT_FULL and > > > something poking kcov? > > > > > > Given lib/refcount.c is instrumented, the refcount_*() calls will > > > recurse back into the kcov code. It looks like that's fine, given these > > > are only manipulated in setup/teardown paths, but it would be nice to be > > > sure. > > > > A simple program using KCOV is available here: > > https://elixir.bootlin.com/linux/v5.0-rc3/source/Documentation/dev- > > tools/kcov.rst#L42 > > or here (it's like strace but collects and prints KCOV coverage): > > https://github.com/google/syzkaller/blob/master/tools/kcovtrace/kcovtrace.c > > > > No, this one hasn't gone via any particular testing apart > the tests that zero day runs automatically (like boot tests, etc.) since > normally > it is hard for me to know how exactly to test a particular component in a > meaningful > way. > > But I can try to test with the above example now, if it helps!
We really need automated tests but I wan't able to figure out how to write/run kernel tests. Sorry about that. Need to try again. I've filed https://bugzilla.kernel.org/show_bug.cgi?id=202363 for this.
