From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Subject: Re: [RFC PATCH 14/23] watchdog/hardlockup: Decouple the hardlockup
	detector from perf
Date: Wed, 13 Jun 2018 10:43:24 +0200
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Cc: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>, Paul Mackerras <paulus-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>, "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>, sparclinux-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Ingo Molnar <mingo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Ashok Raj <ashok.raj-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Andi Kleen <andi.kleen-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, Borislav Petkov <bp-l3A5Bk7waGM@public.gmane.org>, Masami Hiramatsu <mhiramat-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Don Zickus <dzickus-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, "Ravi V. Shankar" <ravi.v.shankar-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, Frederic Weisbecker <frederic-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Nicholas Piggin <npiggin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Mathieu Desnoyers <mathieu.desnoyers-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>, Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>, Tony Luck <tony.luck-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, Babu Moger <babu.moger-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, "Luis R. Rodriguez" <mcgrof-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Jacob Pan <jacob.jun.pan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, Philippe Ombredanne <pombredanne-od1rfyK75/E@public.gmane.org>, Co
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On Tue, Jun 12, 2018 at 05:57:34PM -0700, Ricardo Neri wrote:
> The current default implementation of the hardlockup detector assumes that
> it is implemented using perf events.

The sparc and powerpc things are very much not using perf.