Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer

From	Jiri Olsa <jolsa@redhat.com>
Newsgroups	linux.kernel
Subject	Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer
Date	2016-03-08 21:50 +0100
Message-ID	<rawJP-659-3@gated-at.bofh.it> (permalink)
References	(1 earlier) <raqbn-1xM-1@gated-at.bofh.it> <raqbp-1xM-47@gated-at.bofh.it> <raql5-1Bi-33@gated-at.bofh.it> <ravXs-5uX-15@gated-at.bofh.it> <raw78-5OE-17@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Tue, Mar 08, 2016 at 09:07:46PM +0100, Peter Zijlstra wrote:
> On Tue, Mar 08, 2016 at 08:56:42PM +0100, Jiri Olsa wrote:
> > > # cat go-fuzz.sh
> > > #!/bin/bash
> > > 
> > > echo 1 > /proc/sys/kernel/traceoff_on_warning
> > > echo 1 > /debug/tracing/options/stacktrace
> > > echo 1 > /debug/tracing/events/sched/enable
> > 
> > are you running this under root?
> 
> Of course ;-) I'm not even sure these machines have a user account.
> 
> Also, what's the point of fuzzing if half your 'fun' options return
> -EPERM.

IIRC the perf fuzzer (one from Vince) could screw your machine having
it run under root

jirka

Thread

[RESEND PATCH 0/5] perf core: Support overwrite ring buffer Wang Nan <wangnan0@huawei.com> - 2016-03-07 05:00 +0100
  [RESEND PATCH 5/5] perf core: Reduce perf event output overhead by new overflow handler Wang Nan <wangnan0@huawei.com> - 2016-03-07 05:00 +0100
  [RESEND PATCH 4/5] perf core: Add backward attribute to perf event Wang Nan <wangnan0@huawei.com> - 2016-03-07 05:00 +0100
  [RESEND PATCH 3/5] perf core: Prepare writing into ring buffer from end Wang Nan <wangnan0@huawei.com> - 2016-03-07 05:00 +0100
  Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Peter Zijlstra <peterz@infradead.org> - 2016-03-08 14:50 +0100
    Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Ingo Molnar <mingo@kernel.org> - 2016-03-08 14:50 +0100
      Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Peter Zijlstra <peterz@infradead.org> - 2016-03-08 15:00 +0100
        Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Ingo Molnar <mingo@kernel.org> - 2016-03-08 16:30 +0100
          Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Dmitry Vyukov <dvyukov@google.com> - 2016-03-08 16:40 +0100
            Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Ingo Molnar <mingo@kernel.org> - 2016-03-08 17:00 +0100
              Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Dmitry Vyukov <dvyukov@google.com> - 2016-03-08 17:20 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Ingo Molnar <mingo@kernel.org> - 2016-03-08 17:30 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Dmitry Vyukov <dvyukov@google.com> - 2016-03-08 17:40 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Peter Zijlstra <peterz@infradead.org> - 2016-03-08 17:40 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Ingo Molnar <mingo@kernel.org> - 2016-03-08 17:50 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Ingo Molnar <mingo@kernel.org> - 2016-03-08 17:50 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Dmitry Vyukov <dvyukov@google.com> - 2016-03-08 18:10 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Ingo Molnar <mingo@kernel.org> - 2016-03-08 18:30 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Dmitry Vyukov <dvyukov@google.com> - 2016-03-08 18:30 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Ingo Molnar <mingo@kernel.org> - 2016-03-08 18:40 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Dmitry Vyukov <dvyukov@google.com> - 2016-03-08 18:50 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Ingo Molnar <mingo@kernel.org> - 2016-03-08 18:50 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Peter Zijlstra <peterz@infradead.org> - 2016-03-08 19:00 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Ingo Molnar <mingo@kernel.org> - 2016-03-08 19:00 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Ingo Molnar <mingo@kernel.org> - 2016-03-08 19:10 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Ingo Molnar <mingo@kernel.org> - 2016-03-08 19:30 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Ingo Molnar <mingo@kernel.org> - 2016-03-08 19:40 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Dmitry Vyukov <dvyukov@google.com> - 2016-03-08 19:00 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Peter Zijlstra <peterz@infradead.org> - 2016-03-08 19:00 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Peter Zijlstra <peterz@infradead.org> - 2016-03-08 17:40 +0100
              Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Borislav Petkov <bp@alien8.de> - 2016-03-09 12:00 +0100
                Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Dmitry Vyukov <dvyukov@google.com> - 2016-03-09 12:30 +0100
        Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Jiri Olsa <jolsa@redhat.com> - 2016-03-08 21:00 +0100
          Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Peter Zijlstra <peterz@infradead.org> - 2016-03-08 21:10 +0100
            Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Jiri Olsa <jolsa@redhat.com> - 2016-03-08 21:50 +0100
              Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Peter Zijlstra <peterz@infradead.org> - 2016-03-08 22:10 +0100

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