linux-kernel - Re: Re: Re: [RFC PATCH perf/core v2 00/16] perf-probe --cache and SDT support

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Message-ID: <20150723164206.GB3154@kernel.org>
Date:	Thu, 23 Jul 2015 13:42:06 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc:	Hemant Kumar <hemant@...ux.vnet.ibm.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	linux-kernel@...r.kernel.org,
	Adrian Hunter <adrian.hunter@...el.com>,
	Ingo Molnar <mingo@...hat.com>, Jiri Olsa <jolsa@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Borislav Petkov <bp@...e.de>
Subject: Re: Re: Re: [RFC PATCH perf/core v2 00/16] perf-probe --cache and
 SDT support

Em Fri, Jul 24, 2015 at 01:24:53AM +0900, Masami Hiramatsu escreveu:
> On 2015/07/23 23:01, Arnaldo Carvalho de Melo wrote:
> > This needs refining, i.e. I should just warn that albeit "probe:vfs_getname" is available,
> > it can't be used, unless we open the doors wide.
> > 
> > Sorry for the digression, but these permission issues will hit us with SDT as well, no?
> 
> Yes, and we have another way to avoid this issue, by using setuid as systemtap does.

Will react to the other parts later, but 'setuid'?, can we do better?
That look like some big hammer :-/

- Arnaldo
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