Red Hat Bugzilla – Bug 10209
kernel: set_rtc_mmss: can't update
Last modified: 2008-05-01 11:37:54 EDT
running xntp3 on a dual processor Pentium III. xntp3 continually logs
errors of the form:
kernel: set_rtc_mmss: can't update from 50 to 4
kernel: set_rtc_mmss: can't update from 50 to 3
This is being logged in /var/log/messages, and in dmesg. It doesn't seem to
affect the time updates, but it fills the log, and obscures other more
The problem may be more than annoying, as SMP machines with certain BIOS'es
appear to not always be in sync (fixed in later kernel's, try the 6.2 SMP
Note carefully that the message comes from the kernel, not xntp3, so I'm
changing the component ...
This problem is consistently reproducable on ASUS P2B-DS motherboards running
RH6.0. It is also, interestingly, a problem for NetWare 5.0 on the same
It does NOT occur in single-processor mode, whether enforced by software or
hardware. It only occurs in an SMP kernel running SMP hardware.
It is definitely fixed in RH6.2.
My system is running SMP kernel 2.2.12 on an ASUS P2B-D motherboard.
Unfortunately, I can't easily upgrade because I have two critical drivers which
are dependent on the kernel version, and haven't been updated to the current