On Thu, Mar 26, 2015 at 6:35 PM, Luis R. Rodriguez [off-list ref] wrote:

I'll rephrase this to:

---
It is possible to enable CONFIG_MTRR and up with it
disabled at run time and yet CONFIG_X86_PAT continues
to kick through with all functionally enabled. This
can happen for instance on Xen where MTRR is not
supported but PAT is, this can happen now on Linux as
of commit 47591df50 by Juergen introduced as of v3.19.

I still can't parse this.  What does "up with it disabled at run time"
mean?  And "... continues to kick through"?  Probably some idiomatic
usage I'm just too old to understand :)

Please use the conventional citation format:

  47591df50512 ("xen: Support Xen pv-domains using PAT")

A one-character typo in a SHA1 makes it completely useless, so it's
nice to have the summary line both for readability and a bit of
redundancy.

Bjorn