Re: [PATCH 03/10] perf sched timehist: Handle zero sample->tid properly

[David Ahern]

On 12/5/16 7:40 PM, Namhyung Kim wrote:
> Sometimes samples have tid of 0 but non-0 pid.  It ends up having a

Any idea how that happens?

> new thread of 0 tid/pid (instead of referring idle task) since tid is
> used to search matching task.  But I guess it's wrong to use 0 as a
> tid when pid is set.  This patch uses tid only if it has a non-zero
> value or same as pid (of 0).