https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244705
Bug ID: 244705
Summary: /usr/src/sys/x86/x86/tsc.c: System Clock is 0.3% slow
since r352684
Product: Base System
Version: CURRENT
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: the...@freebsd.org
Created attachment 212294
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=212294&action=edit
reverts the breaking change
After switching from 12.1-RELEASE to CURRENT I noticed audio driver appeared to
be consuming samples too fast by about 0.3%. However after verifying audio
devices are working properly I discovered that system clock is actually slow by
0.3% (confirmed by using ntpdate to compare with time server).
This is not a hardware fault since I can reliably get correct clock by booting
12.1-RELEASE or CURRENT r352683 but slow clock with CURRENT since r352684
unless reverting that change.
hw.model: Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz.
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