Re: [BUG] perf mem: perf mem report fails in TUI mode

From: Stephane Eranian
Date: Wed Dec 10 2014 - 10:21:27 EST

On Wed, Dec 10, 2014 at 12:18 AM, David Ahern <dsahern@xxxxxxxxx> wrote:
> On 12/9/14 9:15 PM, Stephane Eranian wrote:
>> 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.
> I usually avoid the TUI by not installing slang-devel.
> But, trying out Linus' current tip (a0e4467726c - post 3.18) this seems to
> work fine:
> perf mem -t load rec ls
> perf mem -t load rep
What about tip.git?

> But kernel version for the box is 3.16.6-203.fc20.x86_64.
> David
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