Messages in this thread | | | From | Andy Lutomirski <> | Date | Mon, 25 Jun 2018 16:30:39 -0700 | Subject | Re: [RFC 2/2] rcu: Remove ->dynticks_nmi_nesting from struct rcu_dynticks |
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On Mon, Jun 25, 2018 at 3:16 PM Steven Rostedt <rostedt@goodmis.org> wrote: > > On Mon, 25 Jun 2018 13:47:45 -0700 > Andy Lutomirski <luto@kernel.org> wrote: > > > > > As a straightforward example, NMI and MCE can nest inside each other. > > But I'm not sure how stable the machine becomes when MCE's start > interrupting NMIs. Also, can MCE callbacks use RCU? > > > IIRC we treat #DB somewhat NMI-ish-ly as well. > > And #DB is something I think we finally said shouldn't be done in NMIs, > IIRC. >
No one ever applied the patch to make it so, so we still support it.
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