Re: [PATCH] parisc: Purge existing TLB entries in set_pte_at and ptep_set_wrprotect - take 2

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On Mon, 2013-01-14 at 19:45 -0500, John David Anglin wrote:
> Attached is new version of patch which no longer saves and restores  
> %sr1.  Lightly tested with a GCC build
> and a build of Debian gtk+3.0 package.

I can merge it with your previous changelog, but for ease of git users,
the accepted format is

<patch description for git>

---

<Any other details you don't want in git>

git ignores everything after the three dashes on a single line.

So your preamble should be (I also added an explanation of why we think
the problem is occurring):

This patch goes a long way toward fixing the minifail bug, and
it  significantly improves the stability of SMP machines such as
the rp3440.  When write  protecting a page for COW, we need to
purge the existing translation.  Otherwise, the COW break
doesn't occur as expected because the TLB may still have a stale entry
which allows writes.

Signed-off-by: John David Anglin <dave.anglin@xxxxxxxx>

---

v2: Attached is new version of patch which no longer saves and
restores  %sr1.  Lightly tested with a GCC build and a build of
Debian gtk+3.0 package.

James




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