Re: [Jack-Devel] jack is broken on ARM without bogomips

>>>>      My gut feeling is that we should rely on a proper monotonic clock
>>>>      instead and drop this /proc/cpuinfo parser altogether.
>>>>
>>>> agreed 100%.
>>>
>>> In the meantime... (I'm also seeing this error on newer kernels)
>>>
>>> Would it make sense to just hardwire something in there if the existing
>>> tests fail? Is there something that will break if I do that? (I'm going
>>> to
>>> test that but I m asking anyway).
>>
>> Please share your patch if you get something working.
>
> Hi Grant,
>
> I just tried a hack. Can't be called a proper patch, I just used 1000MHz as
> the frequency - I thought that would work as, after all, the BogoMips
> numbers are, well, "bogus" anyway. At least on Pidora with 3.12.x it seems
> to start and work. Not much testing but got a sinewave going :-) Hack below
> (messages could be nicer, of course)...
>
> It would be nice to have a proper fix.
> -- Fernando
>
> --- jack-1.9.9.5/linux/JackLinuxTime.c~ 2012-12-10 01:26:57.000000000 -0800
> +++ jack-1.9.9.5/linux/JackLinuxTime.c  2014-01-22 14:39:41.000000000 -0800
> @@ -152,7 +152,9 @@
>                 if (fgets(buf, sizeof(buf), f) == NULL) {
>                         jack_error ("FATAL: cannot locate cpu MHz in "
>                                     "/proc/cpuinfo\n");
> -                       exit(1);
> +                       fclose(f);
> +                       jack_log("Using 1GHz by default");
> +                       return (jack_time_t)1000;
>                 }
>
>  #if defined(__powerpc__)
> @@ -176,6 +178,10 @@
>                 {
>                         fclose(f);
>                         return (jack_time_t)mhz;
> +               } else {
> +                       fclose(f);
> +                       jack_log("Using 1GHz by default");
> +                       return (jack_time_t)1000;
>                 }
>         }
>  }

Hi Fernando, I was about to try this but I can't find JackLinuxTime.c
in the latest version from git.  Does anyone know where this code is
now?

- Grant

1391024322.26128_0.ltw:2,a <CAN0CFw23dcXG1A3EtxkUDHf=1LUMW=FBR-0anoDUXOJuiKYR+w at mail dot gmail dot com>