Re: [PATCH] Remove Powerpc OProfile events the kernel will reject

Carl, Will,

After this particular commit, I cannot run any OProfile command, even
ophelp, on POWER8.

$ ./ophelp --version
./ophelp: oprofile 1.2.0git compiled on Nov 19 2015 10:43:15
$ ./ophelp
um rc_machine is not used
um L1_latency is not used

The previous version on git (commit
a58c3953a1c5f5fb00b873a5e22c878f9f4d5a2d) works fine.

Could you help fix this problem?


Thanks,
Rei Odaira


2015-11-18 10:34 GMT-06:00 Carl E. Love <[email protected]>:

>
> >
> > The patch for eliminating the problem power 8 pmu events looks
> reasonable, so I committed it to the oprofile repository.  Thanks for the
> fix.
> >
> > When a proper pointer to the power8 pmu counter documentation becomes
> available there should be a patch to utils/ophelp.c.  It currently has the
> following in there, but search for "Power ISA 2.07" doesn't turn up
> anything on the www.power.org website.
> >
> >       case CPU_PPC64_ARCH_V1:
> >       case CPU_PPC64_POWER8:
> >               event_doc =
> >                       "This processor type is fully supported with
> operf.\n"
> >                       "See Power ISA 2.07 at https://www.power.org/\n\n
> ";
> >               break;
> Will:
>
> OK, still pushing for a good link.  So far, I just got a new link for
> Power 7.  Still pushing for a link for Power 8.  It sounds like the
> available Power 8 documentation is limited but there are plans for
> updating it with more detail.  I will work on a patch when I get a link
> for Power 8.
>
>                Carl Love
>
>
>
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