[HEADS-UP] Rebuild cbmem for correct time stamps

[Paul Menzel]

Dear coreboot folks,

please make sure to rebuild the utility cbmem with commit 08e920e5
(util/cbmem: Scale time stamp values correctly) [1]. There was a
regression present for some months, causing the resulting time stamps
to be in milliseconds instead of microseconds.

Most of us probably didn’t notice, because cbmem is rarely rebuild. For
the others, they were happy, seeing their boot time was a thousand
times faster. ;-)

Big thanks to Aaron and Martin helping (doing) the fix.

Thanks,

Paul

[1] https://review.coreboot.org/14086

[Aaron Durbin]

On Mon, Mar 14, 2016 at 4:40 PM, Paul Menzel
 wrote:
> Dear coreboot folks,
>
> please make sure to rebuild the utility cbmem with commit 08e920e5
> (util/cbmem: Scale time stamp values correctly) [1]. There was a
> regression present for some months, causing the resulting time stamps
> to be in milliseconds instead of microseconds.

FYI: This regression was only observed on x86 platforms which don't
provide tsc_freq_mhz(). Because of that, the cbmem utility fell back
to using /sysfs on linux which had a unit issue from the commit Paul
referenced.
> Most of us probably didn’t notice, because cbmem is rarely rebuild. For
> the others, they were happy, seeing their boot time was a thousand
> times faster. ;-)
>
> Big thanks to Aaron and Martin helping (doing) the fix.
>
> Thanks,
>
> Paul
> [1] https://review.coreboot.org/14086
>
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