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Date:      Sun, 29 Nov 2020 08:16:22 -0800
From:      David Wolfskill <david@catwhisker.org>
To:        Ryan Stone <rysto32@gmail.com>
Cc:        FreeBSD Current <current@freebsd.org>
Subject:   Re: Laptop exhibits erratic responsiveness
Message-ID:  <X8PJVoBmy3lDoW91@albert.catwhisker.org>
In-Reply-To: <CAFMmRNwo12zPRu7tkSJw56ng-%2Bcp4Zifattrx5WRszOJai_GNA@mail.gmail.com>
References:  <X8JVn/PIPuLzsWuQ@albert.catwhisker.org> <CADrOrms8fmf9asttPw%2B4B%2BKL7A4svAKx0dDHSuDnEVvxGWiX0Q@mail.gmail.com> <X8OsLaVToS1V1zoX@albert.catwhisker.org> <CAFMmRNwo12zPRu7tkSJw56ng-%2Bcp4Zifattrx5WRszOJai_GNA@mail.gmail.com>

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On Sun, Nov 29, 2020 at 11:04:46AM -0500, Ryan Stone wrote:
> On Sun, Nov 29, 2020 at 9:12 AM David Wolfskill <david@catwhisker.org> wr=
ote:
> > OK, and demonstrated some long RTTs about every 11 packets or so, but we
> > see thing come to a screeching halt with:
> >
> > ...
> > 64 bytes from 172.16.8.13: icmp_seq=3D534 ttl=3D63 time=3D0.664 ms
> > lockstat: dtrace_status(): Abort due to systemic unresponsiveness
> > 64 bytes from 172.16.8.13: icmp_seq=3D535 ttl=3D63 time=3D9404.383 ms
> >
> > and we get no lockstat output. :-/
>=20
> I believe that if you run lockstat with the additional "-x
> destructive" option, it will disable the responsiveness test (the
> option does sound scary but it will not have any other potentially
> destructive effect)

Thanks; the laptop is presently running head @r368143, building
head @r367410 (which is gthe last point before the issues were
observed, I think), so I have fired that up.

Peace,
david
--=20
David H. Wolfskill                              david@catwhisker.org
"Make America Great Again," he said -- and THIS is what he did??!?

See http://www.catwhisker.org/~david/publickey.gpg for my public key.

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