.@kernel.org; h...@zytor.com;
> mi...@elte.hu; t...@linutronix.de
> Subject: Re: [PATCH -tip] x86,trace: Add irq_enter/exit() in
> smp_trace_reschedule_interrupt()
>
> On Fri, 2013-06-28 at 14:02 -0400, Seiji Aguchi wrote:
> > Reschedule vector tracepoints may be called in cpu
On Fri, 2013-06-28 at 14:02 -0400, Seiji Aguchi wrote:
> Reschedule vector tracepoints may be called in cpu idle state.
> This causes lockdep check warning below.
>
> The tracepoint requires rcu but for accuracy it also
> requires irq_enter() (tracepoints record the irq context), thus, the
> trace
Reschedule vector tracepoints may be called in cpu idle state.
This causes lockdep check warning below.
The tracepoint requires rcu but for accuracy it also
requires irq_enter() (tracepoints record the irq context), thus, the
tracepoint interrupt handler should be calling irq_enter() and not
rcu_i
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