Re: CPU hotplug broken in 2.6.8-rc2 ?

From: Con Kolivas
Date: Wed Aug 04 2004 - 16:12:35 EST


Zwane Mwaikambo wrote:
On Tue, 3 Aug 2004, Nathan Lynch wrote:


__setscheduler(rq->idle, SCHED_NORMAL, 0);
task_rq_unlock(rq, &flags);
BUG_ON(rq->nr_running != 0);

I can reproduce this on both ppc64 and i386. Does anyone know why this
is happening?

If I remove the BUG_ON, things seem to go ok, but I doubt that's the
right thing to do.


It could have something to do with the staircase scheduler, Con, got any
wise words?

Doesn't this bug report say 2.6.8-rc2? It's mm2 that has staircase.

Con

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