Re: runnable tasks never making it to a runqueue where they can run?

[Srivatsa Vaddagiri]

* Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> [2012-03-08 11:28:00]:

> select_task_rq_fair() will very likely end up in select_idle_sibling()
> which will never select the smt1 if smt0 is idle

s/idle/busy?

> (even if smt0 isn't in
> the cpus allowed mask) -- Vatsa is currently reworking that area, this
> is something he might want to consider.

The patch I sent couple of days back should likely fix this issue:

http://marc.info/?l=linux-kernel&m=133096114129607&w=2

- vatsa

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