[ntp:questions] Linux 11-minute mode (RTC update)

Ulrich Windl Ulrich.Windl at RZ.Uni-Regensburg.DE
Fri May 2 14:16:53 UTC 2008


Bill Unruh <unruh at physics.ubc.ca> writes:

[...]
>>> Real men don't want the eleven-minutes mode.

What real men actually want is: Independent on how you set the clock, the
expectation is that after reboot or power cycle the clock is as good as
possible.

IMHO the idea to update the RTC during shutdown is broken, because if the
system crashes, the RTC time may be wrong. Likewise the concept of a user
program getting the system time from the RTC during boot is broken. The kernel
needs correct time as early as possible.

Regards,
Ulrich




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