Re: [PATCH] perf session: Fix infinite loop on invalid perf.data file

From: Ingo Molnar
Date: Tue Oct 01 2013 - 10:22:04 EST



* David Ahern <dsahern@xxxxxxxxx> wrote:

> On 10/1/13 1:16 AM, Ingo Molnar wrote:
> >Just a detail: it would be nice to make all the user facing messages in
> >tools/perf/util/header.c more specific and more structured. For example
> >prefixing it with 'perf header:' would be fine:
> >
> > WARNING: perf/header: Data size is 0. Was the 'perf record' command properly terminated?
> >
>
> Why put code references in the messages? The message is all on one
> line so grep finds it quickly for people working on the code.

I'd agree if this was some internal error that should never really trigger
(so at most developers see it).

But if I understood it correctly this particular message could trigger for
regular users of perf as well, of the perf record is terminated in some
unusual fashion. Regular users might not have the perf code handy (and
might not know about git grep either).

Thanks,

Ingo
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