Re: kern/45626: System time does not advance correctly when noatime is specified for /var

[christos%zoulas.com@localhost (Christos Zoulas)]

On Nov 18,  6:50pm, donaldcallen%gmail.com@localhost (Donald Allen) wrote:
-- Subject: Re: kern/45626: System time does not advance correctly when noati

|  I'd also like to mention that I've had this machine for a few years
|  now, and, in addition to Linux, I have tried OpenBSD and FreeBSD on it
|  (both of which were abandoned for good reasons, which I won't go into
|  here). I had no problems with time-keeping with them, either. So
|  you've got a couple of BSD references, in addition to Linux, for ideas
|  on working around the TSC issue.
|  
|  Again, thanks very much for your help.

This might help:

christos

Index: tsc.c
===================================================================
RCS file: /cvsroot/src/sys/arch/x86/x86/tsc.c,v
retrieving revision 1.30
diff -u -u -r1.30 tsc.c
--- tsc.c       8 Aug 2011 17:00:23 -0000       1.30
+++ tsc.c       18 Nov 2011 19:11:53 -0000
@@ -141,6 +141,11 @@
                    (long long)tsc_drift_observed);
                tsc_timecounter.tc_quality = -100;
                safe = false;
+       } else if (tsc_freq > 16ULL * 1024 * 1024 * 1024) {
+               aprint_error("ERROR: TSC reported %llu Hz; frequency too 
high\n",
+                   (unsigned long long)tsc_freq);
+               tsc_timecounter.tc_quality = -100;
+               safe = false;
        }
 
        if (tsc_freq != 0) {