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Date:      Tue, 16 Aug 2016 16:28:18 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 211897] horrible time skew under 10.3-R-p7
Message-ID:  <bug-211897-8-5g5EiXoCPw@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-211897-8@https.bugs.freebsd.org/bugzilla/>
References:  <bug-211897-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D211897

--- Comment #4 from Konstantin Belousov <kib@FreeBSD.org> ---
Non-verbose dmesg is not useful for a diagnostic.

>From the figure of the things I suspect that your issue might be failing 82=
54
piece of the chipset.  Can you confirm or deny that booting non-patched 10.3
kernel report 4GHz frequency ?

Another thing to try is to change both timecounters and eventtimers to HPET:
sysctl kern.timecounter.hardware=3DHPET, kern.eventimer.hardware=3DHPET and=
 see
what ntpd thinks about machine.

--=20
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