linux-kernel - [BUG] perf mem: perf mem report fails in TUI mode

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Message-ID: <CABPqkBTLjQPymwDgNKdOshZimKQ0DGWaqm0gC8uFbwPK7vWrsA@mail.gmail.com>
Date:	Tue, 9 Dec 2014 23:15:13 -0500
From:	Stephane Eranian <eranian@...gle.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Jiri Olsa <jolsa@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	"mingo@...e.hu" <mingo@...e.hu>,
	Namhyung Kim <namhyung@...nel.org>,
	David Ahern <dsahern@...il.com>,
	"ak@...ux.intel.com" <ak@...ux.intel.com>
Subject: [BUG] perf mem: perf mem report fails in TUI mode

Hi,

I was running a couple of tests with perf mem from tip.git and
found that perf mem -t load rep was failing only in TUI mode.
With --stdio, it works fine. I did a bit of investigation and found
out that the TUI mode is failing because some symbol (kernel)
is showing up with a huge (negative) size. I don't understand
the connection between the TUI vs. tty browser and symbols.

To reproduce:
    $ perf mem -t load rec my_test_program
    $ perf mem -t load rep
    $ perf mem -t load rep --stdio

Debugging with TUI is a pain, so I stopped.

I have a patch to improve perf mem a bit but I'd like to get this problem
fixed first.

Maybe you have a idea of what's going on.

Thanks.
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