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Date:	Thu, 23 Feb 2012 09:37:03 +0100
From:	Ingo Molnar <>
To:	Masami Hiramatsu <>
Subject: Re: Re: [tip:perf/core] x86/kprobes: Fix to recover instructions on
 optimized path

* Ingo Molnar <> wrote:

> > > Does not build on x86 if CONFIG_OPTPROBES is off:
> > > 
> > > arch/x86/kernel/kprobes.c:260:8: error: dereferencing pointer to incomplete type
> > > arch/x86/kernel/kprobes.c:260:8: error: invalid use of undefined type ‘struct optimized_kprobe’
> > > arch/x86/kernel/kprobes.c:262:22: error: dereferencing pointer to incomplete type
> > > arch/x86/kernel/kprobes.c:264:18: error: dereferencing pointer to incomplete type
> > 
> > Oops, should I update this patch or send new diff?
> Please send a delta fix.

Hm, it was triggering too often so I removed it from perf:core 
for now - please send an updated patch.

Please also pick up the slightly updated changelog I've created 
for the commit - you can see it in the -tip notification email.

Btw., why are optprobes limited to !PREEMPT, could we make them 
preempt safe?


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