Re: kern/56322: Excessive clock drift

[David Holland <dholland-bugs%netbsd.org@localhost>]

The following reply was made to PR kern/56322; it has been noted by GNATS.

From: David Holland <dholland-bugs%netbsd.org@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
	netbsd-bugs%netbsd.org@localhost, dholland%NetBSD.org@localhost
Subject: Re: kern/56322: Excessive clock drift
Date: Thu, 22 Jul 2021 06:55:47 +0000

 On Thu, Jul 22, 2021 at 05:50:01AM +0000, Frank Kardel wrote:
  >  Can you post
  >  
  >  sysctl kern.timecounter
  >  ?
  >  
  >  I assume the with the
  >  
  >  ERROR: 2607 cycle TSC drift observed
  >  
  >  TSC was not picked as timecounter on your system.
 
 It was not then (afaik) but it was now. So,
 
  >  Can you try
  >  
  >  sysctl -w kern.timecounter.hardware=i8254
  >  
  >  and see whether that improves the situation.
 
 Yes.
 
 As of ~now when I did that it had dropped to two full minutes behind,
 in something like seven hours, so tomorrow morning should indicate
 whether the situation's better.
 
 -- 
 David A. Holland
 dholland%netbsd.org@localhost