Messages in this thread | | | Date | Wed, 9 Apr 2014 11:32:20 -0700 | Subject | Re: current->sched_class->yield_task is NULL, any hint? | From | Lin Ming <> |
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On Wed, Apr 9, 2014 at 11:25 AM, Peter Zijlstra <peterz@infradead.org> wrote: > On Wed, Apr 09, 2014 at 10:43:32AM -0700, Lin Ming wrote: >> Hi Peter, >> >> I hit a panic in sys_sched_yield() because(for some unknown reason) >> current->sched_class->yield_task is NULL. >> It's an ARM embedded board with 3.4-rt kernel. >> >> Could you share any hint for the possible causes? > > What class does current->sched_class point to?
[12890.088232] Process swapper/0 (pid: 0, stack limit = 0xc07042f0)
It's idle task. I think it should be idle_sched_class. But let me double check it.
Thanks.
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