Date: Fri, 25 Sep 2020 09:33:34 +0000 From: Glen Barber <gjb@freebsd.org> To: Mike Karels <mike@karels.net> Cc: Ed Maste <emaste@freebsd.org>, "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>, FreeBSD Release Engineering Team <re@freebsd.org> Subject: Re: clock problems with BeagleBone Black on 12.2BETA2 Message-ID: <20200925093334.GH60607@FreeBSD.org> In-Reply-To: <202009250507.08P573Bh045283@mail.karels.net> References: <20200925003347.GG60607@FreeBSD.org> <202009250507.08P573Bh045283@mail.karels.net>
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--hKnd/qOzIOdPs36Y Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Sep 25, 2020 at 12:07:03AM -0500, Mike Karels wrote: > > Date: Fri, 25 Sep 2020 00:33:47 +0000 > > From: Glen Barber <gjb@freebsd.org> >=20 > > On Thu, Sep 24, 2020 at 06:04:58PM -0400, Ed Maste wrote: > > > On Tue, 22 Sep 2020 at 14:09, Mike Karels <mike@karels.net> wrote: > > > > > > > > I just installed 12.2BETA2 on a BeagleBone Black (armv7), and it to= ok > > > > at least an hour. I hit ^T periodically, and time seemed screwed up > > > > (real time was progressing slowly at best). > > > > > > I've independently confirmed this on the 12.2BETA2 image; from my con= sole: > > > ... > > > FreeBSD 12.2-BETA2 r365865 GENERIC arm > > > ... > > > Trying to mount root from ufs:/dev/ufs/rootfs [rw]... > > > Warning: no time-of-day clock registered, system time will not be set= acc=3D > > urately > > > Growing root partition to fill device > > > random: read_random_uio unblock wait > > > load: 1.28 cmd: awk 39 [piperd] 0.12r 0.00u 0.00s 0% 2060k > > > load: 1.28 cmd: awk 39 [piperd] 0.14r 0.00u 0.00s 0% 2060k > > > ... > > > > > > time seems to be running about 500x slow. > > > > > > I ^C'd each startup script that was stuck (I'm not as patient as > > > Mike), and got to a login prompt. I was able to login as root just > > > fine and the system seemed responsive for commands that don't sleep. I > > > tried `sleep 0.01` and that took about 5 seconds of actual time. > > > >=20 > > Given the 1 second =3D 5 seconds info, does it eventually finish, or ha= ve > > you just killed the power to it before getting that far? >=20 > In my case, it finished, but took at least an hour. It may have taken > longer if I didn't hit ^T periodically, e.g. I think that helped seed > entropy. But according to Ed's measurement, it is closer to 1 second =3D > 500 seconds. >=20 Err, sorry, I misread part of Ed's email, and 1 second =3D 500 seconds is what he seems to report as well. Glen --hKnd/qOzIOdPs36Y Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEjRJAPC5sqwhs9k2jAxRYpUeP4pMFAl9tuWoACgkQAxRYpUeP 4pME2w//S7xCRh9Z3jAfoAF+DNZimh+tiNwoyOiOJc2mOMTNbRgOc35ZY4U2t6o/ w4/L3UsKg92ZLncnMDIG5b5yxOxWsSR/WyfUk1oWs6KWqv3Xna4bKr+IpM1Ph5ZI PvTZTY6XgNBq34O/aj+gZqFvX2QYKU3+bEpYfrvOt/7e7FiaEtUo3a81VvX2Ca9V 89Ztrx3K6HiiSdJFDNIecaY5Vg8kJLMPzUxezNvLqoWnBlI9ID26E+OcVTCcKE0V zlYt6KAdv5GcpbuJDaL70DSwIwNNs04XewL9Qhq8IJ0ri2yS0fco2XR7hZ9VeOSj txCu0vjmTSNA1+LZzYpvqSVCR2gdMHaa3qi2to2Vw5tp8p6ymA/VhPo8mzNngXvl QPwEhBF+DXAyE3etGbERBk/qkz9gsDTPkQomMIOkW6arZ0LxBUqTwNWCQ+21W1cH H30kmXuZ8hY+pC7os637kjUYKB8sD9cAGEvJSYYvmqNypeSc08hZib+s4TbX8zdz MPf3zh4A7z0g3vYXEep2otGxe/Nl3JU5iMV5yAGBySNTOvDGWyjuahXXbgfwjr4Z 62NmAwYfAx+r4rYoeAoaHamB6Fs9UzWG1pKyoZoAnPvj2VWCeXaSYxlFUglSUzr2 C50ETYRq6ZBFa+MB5ekeZGj/R3FzbMjREd3Tzi72yd7tzIqioXw= =8bhJ -----END PGP SIGNATURE----- --hKnd/qOzIOdPs36Y--
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