Re: pipe/page fault oddness.

[Dave Jones]

On Fri, Oct 03, 2014 at 08:43:57AM -0700, Linus Torvalds wrote:
 > On Thu, Oct 2, 2014 at 10:00 PM, Sasha Levin <sasha.levin@xxxxxxxxxx> wrote:
 > >
 > > For the record, I tweaked the environment to put some more pressure on the
 > > scheduler and found out what broke (which is not related to this thread at
 > > all).
 > 
 > Ok. It's probably still worth testing Mel's patches, since that's what
 > goes into 3.17. But it would be interesting to eventually go back to
 > stability-testing the protnone set, since it *looked* like it was
 > working well aside from this issue. I might decide to just do it
 > during the 3.18 merge window..

FYI, I've been trying to reproduce that initial bug all week, and
haven't seen a single reoccurance of it, just other bugs.
Kind of a pain in the ass for confirming this numa stuff was indeed
the cause, but that's been true of so many of the more obscure bugs
trinity has shaken out.

	Dave

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