linux-kernel - [PATCH 0/3] perf: Disable user space dumps for function trace event

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Date:	Sun,  2 Mar 2014 16:56:37 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	"H. Peter Anvin" <hpa@...or.com>,
	Vince Weaver <vincent.weaver@...ne.edu>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: [PATCH 0/3] perf: Disable user space dumps for function trace event

hi,
recent issues with user space callchains processing within
page fault handler tracing showed as Peter said 'there's
just too much fail surface'.

Related list discussions:
  http://marc.info/?t=139302086500001&r=1&w=2
  http://marc.info/?t=139301437300003&r=1&w=2

Disabling user space callchain and stack dump for
function trace event. Plus updating the perf tool
to keep up with those changes.

Reachable here:

thanks,
jirka


Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Vince Weaver <vincent.weaver@...ne.edu>
Cc: Steven Rostedt <rostedt@...dmis.org>
---
Jiri Olsa (3):
      perf: Disallow user space callchains for function trace event
      perf: Disallow user space stack dump for function trace event
      perf tools: Disable user space callchain/stack for function trace event

 kernel/trace/trace_event_perf.c | 22 +++++++++++++++++++---
 tools/perf/util/evsel.c         | 41 ++++++++++++++++++++++++++++++-----------
 tools/perf/util/evsel.h         | 18 ++++++++++++++++++
 3 files changed, 67 insertions(+), 14 deletions(-)
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