On Wed, 30 Sep 2015 09:10:47 +0200 Peter Zijlstra <pet...@infradead.org> wrote:
> Ingo requested I keep my debug check for the preempt_count invariant. > > Requested-by: Ingo Molnar <mi...@kernel.org> > Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org> > --- > kernel/sched/core.c | 4 ++++ > 1 file changed, 4 insertions(+) > > --- a/kernel/sched/core.c > +++ b/kernel/sched/core.c > @@ -2514,6 +2514,10 @@ static struct rq *finish_task_switch(str > * > * Also, see FORK_PREEMPT_COUNT. > */ > + if (unlikely(WARN_ONCE(preempt_count() != 2*PREEMPT_DISABLE_OFFSET, Nuke the "unlikely" it's redundant with the WARN_ONCE(). -- Steve > + "corrupted preempt_count: %s/%d/0x%x\n", > + current->comm, current->pid, preempt_count()))) > + preempt_count_set(FORK_PREEMPT_COUNT); > > rq->prev_mm = NULL; > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
