Make it clear that this clock may be discontinuous, and is
affected my incremental NTP and clock-adjtime(2) adjustments.
See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=540872
Reported-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Note interactions of these two clocks with discontinuous
adjustments to the system time and NTP/adjtime(2).
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
SUSv3 permits, but does not require CLOCK_THREAD_CPUTIME_ID and
CLOCK_PROCESS_CPUTIME_ID to be settable.
See http://bugzilla.kernel.org/show_bug.cgi?id=11972.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>