Re: Closing on the CR2 leak bug

From: Steven Rostedt
Date: Tue Mar 04 2014 - 19:00:22 EST


On Tue, 04 Mar 2014 15:44:26 -0800
"H. Peter Anvin" <hpa@xxxxxxxxx> wrote:

> On 03/04/2014 03:41 PM, Steven Rostedt wrote:
> >
> > The only other issue is if perf traces from function context and traces
> > the trace_do_page_fault() call. But other than that, sure, take Jiri's
> > patch.
> >
>
> Is there a known codepath on which that can happen?

I'm not sure. Jiri, is there a way we can trace userspace from
the ftrace function event? What would be the command to try? I know you
had a patch to prevent it, but is it currently possible?

-- Steve
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