From: Steven Rostedt <rostedt@goodmis.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: Dave Jones <davej@redhat.com>, David Ahern <dsahern@gmail.com>,
Andi Kleen <andi@firstfloor.org>,
x86@kernel.org, linux-kernel@vger.kernel.org,
peterz@infradead.org, Andi Kleen <ak@linux.intel.com>,
fweisbec@gmail.com
Subject: Re: [PATCH 6/6] x86: Allow disabling HW_BREAKPOINTS and PERF_EVENTS
Date: Tue, 8 Oct 2013 16:19:59 -0400 [thread overview]
Message-ID: <20131008201959.GC15214@home.goodmis.org> (raw)
In-Reply-To: <20131008193613.GA7315@gmail.com>
On Tue, Oct 08, 2013 at 09:36:13PM +0200, Ingo Molnar wrote:
>
> Peter is working on it - but it's slow. Could you try to disable
> sys_perf_open, ptrace and the NMI watchdog? No perf functionality should
> be used in that case. If you disable CONFIG_FTRACE then no ftrace
> functionality should be used.
>
Dave,
The ftrace oops you've been seeing is from the function tracer, you don't
need to disable all of ftrace, just CONFIG_FUNCTION_TRACER (and anything
that selects it: CONFIG_STACK_TRACER).
-- Steve
next prev parent reply other threads:[~2013-10-08 20:20 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-04 21:39 Allow disabling perf on x86 Andi Kleen
2013-10-04 21:39 ` [PATCH 1/6] perf, x86, amd: Move __get_ibs_caps into common amd CPU file Andi Kleen
2013-10-04 21:39 ` [PATCH 2/6] perf, x86: Make perf amd ibs code depend on PERF_EVENTS and SUP_AMD Andi Kleen
2013-10-04 21:39 ` [PATCH 3/6] x86, ptrace: Ifdef HW_BREAKPOINTS code in ptrace Andi Kleen
2013-10-04 21:39 ` [PATCH 4/6] trace: Make UPROBES depend on PERF_EVENTS Andi Kleen
2013-10-05 0:52 ` Steven Rostedt
2013-10-05 3:25 ` Andi Kleen
2013-10-04 21:39 ` [PATCH 5/6] x86, kgdb: Support compiling without hardware break points Andi Kleen
2013-10-04 21:39 ` [PATCH 6/6] x86: Allow disabling HW_BREAKPOINTS and PERF_EVENTS Andi Kleen
2013-10-04 22:27 ` Frederic Weisbecker
2013-10-05 7:08 ` Ingo Molnar
2013-10-05 17:05 ` Andi Kleen
2013-10-08 19:55 ` Frederic Weisbecker
2013-10-08 20:05 ` Peter Zijlstra
2013-10-08 20:34 ` Frederic Weisbecker
2013-10-08 20:35 ` Frederic Weisbecker
2013-10-09 6:02 ` Ingo Molnar
2013-10-06 16:49 ` Ingo Molnar
2013-10-08 6:59 ` Ingo Molnar
2013-10-08 15:35 ` Steven Rostedt
2013-10-08 19:39 ` Ingo Molnar
2013-10-08 15:42 ` Vince Weaver
2013-10-08 15:51 ` Dave Jones
2013-10-08 16:22 ` David Ahern
2013-10-08 16:24 ` Dave Jones
2013-10-08 19:36 ` Ingo Molnar
2013-10-08 20:19 ` Steven Rostedt [this message]
2013-10-09 3:21 ` Andi Kleen
2013-10-09 3:24 ` Andi Kleen
2013-10-09 3:39 ` Andi Kleen
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