Re: [PATCH 1/2] ftrace: disable tracing on resize

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On Wed, 12 Nov 2008, Pekka Paalanen wrote:

> On Mon, 10 Nov 2008 22:18:19 -0500 (EST)
> Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
> 
> > 
> > Pekka,
> > 
> > I forgot to add you to the Cc list. Could you test this patch to see if it 
> > fixes the bug you reported. It fixed a bug I was able to reproduce, but I 
> > was never able to reproduce the exact same bug you have seen.
> 
> Thanks, Steve.
> 
> I didn't have time to try it myself yet, but a kind soul tried it for me.
> He used 2.6.28-rc4 and was immediately able to trigger the bug by just:
> cd /debug/tracing
> echo 0 > tracing_enabled
> echo 200 > trace_entries
> 
> Then he applied the patch you referred to, and the bug is still present.
> He has a 32-bit x86 amd system, and I'm on x86_64.
> 
> I don't know why you couldn't reproduce it, maybe you have all the tracers
> enabled in the kernel config, when we only have MMIOTRACE.
> 
> I can't promise to look into this deeper in the near future :-/
> 

OK, I'll disable everything but MMIOTRACE and see if I can reproduce it.

Thanks,

-- Steve

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