Re: misc oprofile-tests updates

On Wed, 30 Mar 2016, Will Schmidt wrote:
> Hi Oprofile devs,
>
> A handful of changes to the oprofile-tests suite, for consideration.
>
> I stumbled across an issue while running the tests, dug in a bit, and came
> out with this short series of patches to improve things.  Most of the
> changes are cosmetic, but a couple will affect the suite behavior, most
> notably that more of the tests will be runnable as a normal user, and we
> will successfully run more tests as root when the kptr_restrict mode is
> in restricted mode, where we previously would have punted.  (Additional
> detail in the patch descriptions.)
>
> I've tested these changes against an older (0.9.8) install, as well as
> against latest (1.2.0git), no new issues in my testing.
>
> As a user:
> before:  49/49 tests passed.
> after:   74/78 to 78/78 tests passed.  (depending on the value of kptr_restrict)
>
> As root:
> No notable changes.  My latest run showed
> after:  113/117 to 117/117 tests passed.  (depending on kptr_restrict)
>
> Thanks,
> -Will
>

Hi,

I have run the testsuite with your patches on a few machines and I like
the changes. Thank you for them.

I am interested in the failures related to the value of kptr_restrict.
Could you please provide more information about your testing?

Which kptr_restrict values it passes with? Which values it fails with?
Which kernel versions, archs, systems have you used?

I have met an issue with incorrect kallsyms detection (see the patch
I have sent recently). I noticed that issue by running the patched suite
where it was reporting "set kptr_restrict to 0" despite having it 0.

Also please try to run

grep -e ' _stext' -e ' _text' -e ' _etext' /proc/kallsyms

on the box(es) where you tested the suite and send the output. In case
your kernel's kallsyms file has the _stext symbol, could you also try
to run the tests against oprofile with my patch if anything changes.

Thank you!

Michael

>
> ------------------------------------------------------------------------------
> Transform Data into Opportunity.
> Accelerate data analysis in your applications with
> Intel Data Analytics Acceleration Library.
> Click to learn more.
> http://pubads.g.doubleclick.net/gampad/clk?id=278785471&iu=/4140
> _______________________________________________
> oprofile-list mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/oprofile-list
>

------------------------------------------------------------------------------
Transform Data into Opportunity.
Accelerate data analysis in your applications with
Intel Data Analytics Acceleration Library.
Click to learn more.
http://pubads.g.doubleclick.net/gampad/clk?id=278785471&iu=/4140