On Thu, 2015-07-23 at 09:36 -0600, Jan Beulich wrote:
> > 
> > > > On 23.07.15 at 17:25, <toshi.k...@hp.com> wrote:
> > Yes, I agree with you.  But such risk is very low -- 1) the regular 
> > case
> > (no fallback) is used most of the cases, 2) the code using WT knows 
> > what
> > type of memory it is dealing with.  For example, pmem may map NVDIMM 
> > with
> > WT, and any sane BIOS sets MTRR to WB for NVDIMM. 
> 
> Do the words "sane" and "BIOS" really fit together in your opinion?

:-)

Anyway, I am not disagreeing with you... When UC is ready for both regular
memory and IO memory, it should be changed to fall back to UC.

Thanks,
-Toshi
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to