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From: Jiri Olsa <jolsa@redhat.com>
To: 禹舟键 <ufo19890607@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
	mingo@redhat.com,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@kernel.org>, David Ahern <dsahern@gmail.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Milian Wolff <milian.wolff@kdab.com>,
	Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>,
	Wind Yu <yuzhoujian@didichuxing.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Wang Nan <wangnan0@huawei.com>,
	linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
	acme@redhat.com
Subject: Re: Php-fpm will crash when perf runs with call graph option
Date: Wed, 10 Jan 2018 16:21:49 +0100	[thread overview]
Message-ID: <20180110152149.GA6316@krava> (raw)
In-Reply-To: <CAHCio2jmTjgqR4V7q66dNaLrh7_o=sLMWK9K3FXPaUAT4-Ai+A@mail.gmail.com>

On Tue, Dec 26, 2017 at 10:29:34AM +0800, 禹舟键 wrote:
> Hi, Jirka
> This issue happens  always. The perf is running on the host machine and the
> command line is as follow:
> 
>          $perf record -ag -F 100
> 
> But I do not find anything about race condition from the call stack in gdb.
> The only thing I find is that some functions' rbp is really strange(0x1,
> 0x31).
> 
> There is a simple method to reproduce this issue. Just run a docker in a
> server(OS : centos7.3), and run php-fpm(php-7.0.6)  in the docker, then run
> some shell scripts from another server to send data package to the php-fpm
> in the docker. When perf runs on the server which contains the docker, the
> php-fpm will crash in just several seconds.

could you provide exact steps/commands for this?

thanks,
jirka

  parent reply	other threads:[~2018-01-10 15:21 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-25  6:56 Php-fpm will crash when perf runs with call graph option ufo19890607
2017-12-25 21:38 ` Jiri Olsa
     [not found]   ` <CAHCio2jmTjgqR4V7q66dNaLrh7_o=sLMWK9K3FXPaUAT4-Ai+A@mail.gmail.com>
2018-01-10 15:21     ` Jiri Olsa [this message]
  -- strict thread matches above, loose matches on Subject: below --
2017-12-25  6:58 ufo19890607
2017-12-25  7:06 ` Wangnan (F)
2017-12-25  7:06   ` Wangnan (F)

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