Messages in this thread | | | Date | Fri, 25 Jun 2021 18:02:31 +0530 | From | Bharata B Rao <> | Subject | Re: PowerPC guest getting "BUG: scheduling while atomic" on linux-next-20210623 during secondary CPUs bringup |
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On Fri, Jun 25, 2021 at 12:16:52PM +0200, Peter Zijlstra wrote: > You mean: CONFIG_PREEMPTION=n, what about CONFIG_PREEMPT_COUNT? > > Because if both are =n, then I don't see how that warning could trigger. > in_atomic_preempt_off() would then result in prempt_count() == 0, and > per the print above, it *is* 0.
CONFIG_PREEMPTION isn't set.
Also other PREEMPT related options are as under:
# CONFIG_PREEMPT_NONE is not set CONFIG_PREEMPT_VOLUNTARY=y # CONFIG_PREEMPT is not set CONFIG_PREEMPT_COUNT=y CONFIG_PREEMPT_NOTIFIERS=y CONFIG_PREEMPTIRQ_TRACEPOINTS=y # CONFIG_PREEMPTIRQ_DELAY_TEST is not set
Regards, Bharata.
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