Charles Sprickman wrote:
On Mon, 21 Nov 2005, John Baldwin wrote:
On Saturday 19 November 2005 02:16 pm, Uwe Doering wrote:
John Baldwin wrote:
[...]
Actually, there was a patch that was committed in 5.4 and 6.0 for this
issue. You can see the diff here:
http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/i386/isa/clock.c.diff?r1=1.
213&r2=1.214&f=h
That patch would probably backport to 4.x fairly easily.
I just looked at RELENG_4, and yes, backporting should be easy. Though
I haven't tried it yet on our machines.
I wonder, however, what's writing to the RTC on a running server. Could
this event perhaps have been triggered by the recent Daylight Saving
Time switch?
Yep. Also, if you are using ntp, then the adjustments to the time are
getting
pushed back to the RTC as well.
I run ntp everywhere.
So it certainly looks easy enough for me to change the first two
sections of the diff referenced above, but I'm having issues finding
that last one in cpu_initclocks(). It looks like that section really
has changed quite a bit. (see v.1.206)
Just look for all instances of
writertc(RTC_STATUSB, rtc_statusb);
and put
rtcin(RTC_INTR);
directly behind them (into the next line). There should be three of
them, in 4.8 as well as RELENG_4 and CURRENT.
Is there any interest in moving this back to 4-STABLE?
Interest there is, I suppose. Plenty of people still run 4.x. The
question is rather whether there is any committer willing to do the
backport. As far as I can tell, most of them are more focused on newer
branches. Perhaps we need special backporting committers for legacy
branches. Just a thought. ;-)
And lastly, is there any snippet of code that can twiddle the clock from
userspace and determine if it's wedged or dead?
You may want to look at adjkerntz(8).
Uwe
--
Uwe Doering | EscapeBox - Managed On-Demand UNIX Servers
[EMAIL PROTECTED] | http://www.escapebox.net
_______________________________________________
freebsd-hackers@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
To unsubscribe, send any mail to "[EMAIL PROTECTED]"
