Re: frequent lockups in 3.18rc4
From: Steven Rostedt
Date: Fri Nov 21 2014 - 17:45:22 EST
On Fri, 21 Nov 2014 22:50:41 +0100
Frederic Weisbecker <fweisbec@xxxxxxxxx> wrote:
> > Otherwise if we have a page fault inside do_page_fault, it's just a
> > nested page fault.
> Oh ok!
> But we still have the cr2 issue that Steve talked about.
Nope, as I looked at the code, I noticed that do_page_fault isn't traced
which is the wrapper for __do_page_fault which is. And do_page_fault()
saves off the cr2 before calling anything else.
So we are ok in this respect as well.
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