| From | Andy Lutomirski <> | Date | Thu, 7 May 2020 11:04:34 -0700 | Subject | Re: [patch V4 part 1 35/36] x86: Replace ist_enter() with nmi_enter() |
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On Tue, May 5, 2020 at 7:14 AM Thomas Gleixner <tglx@linutronix.de> wrote: > > From: Peter Zijlstra <peterz@infradead.org> > > A few exceptions (like #DB and #BP) can happen at any location in the code, > this then means that tracers should treat events from these exceptions as > NMI-like. The interrupted context could be holding locks with interrupts > disabled for instance. > > Similarly, #MC is an actual NMI-like exception.
Is it permissible to send a signal from inside nmi_enter()? I imagine so, but I just want to make sure.
--Andy
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