Re: [PATCH] Make sched_clock() work in early boot

[Jason Uhlenkott <jasonuhl@sgi.com>]

On Tue, Aug 16, 2005 at 01:56:10PM -0700, Luck, Tony wrote:
> Also interesting is that even with your fix, there is something
> wrong with the code ... the first few lines of output are lost
> output starts with:
> 
>  of memory at 0x85000 due to granule hole at 0x0
> [   0.000000] efi.trim_bottom: ignoring ...

That's odd.  I'm getting full output on sn2 (on both real hardware and
medusa).


> Finally, while your patch is compact and neat, I have to agree
> with David that depending on the locked TR entry for the per-cpu
> area is an assumption that I'd prefer not to hardwire into more
> places.

I don't necessarily disagree.  Using a speculative load for this seemed
a little sleazy to me.  I just didn't know of any other cheap way to
test for the existence of the per-cpu area...