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Date:   Thu, 30 Aug 2018 15:39:05 -0300
From:   Arnaldo Carvalho de Melo <>
To:     Jiri Olsa <>
Cc:     Ingo Molnar <>,
        Peter Zijlstra <>,
        lkml <>,
        Namhyung Kim <>,
        David Ahern <>,
        Alexander Shishkin <>,
        Milind Chabbi <>,
        Oleg Nesterov <>
Subject: Re: [PATCHv4 0/5] perf/hw_breakpoint: Fix breakpoint modify

Em Mon, Aug 27, 2018 at 11:12:23AM +0200, Jiri Olsa escreveu:
> hi,
> Milind reported that modify_user_hw_breakpoint wouldn't
> allow the breakpoint changing if the new attr had 'disabled'
> set to true.
> I found a case where it actualy prevents ptrace user interface
> to change the breakpoint. It's described in patch 1 as perf test,
> patch 2 is the breakpoint code fix.
> I ran strace tests, nothing (new) broken there..

Thanks, tested and applied.

- Arnaldo

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