On Fri, 5 Jun 2015 10:46:36 +0800 Wen-Chi Yang <wolkayang at gmail.com> wrote:
> Due to eal_alarm_callback() and rte_eal_alarm_set() use gettimeofday() > to get the current time, and gettimeofday() is affected by jumps. > > For example, set up a rte_alarm which will be triggerd next second ( > current time + 1 second) by rte_eal_alarm_set(). And the callback > function of this rte_alarm sets up another rte_alarm which will be > triggered next second (current time + 2 second). > Once we change the system time when the callback function is triggered, > it is possiblb that rte alarm functionalities work out of expectation. > > Replace gettimeofday() with clock_gettime(CLOCK_MONOTONIC_RAW, &now) > could avoid this phenomenon. > > Signed-off-by: Wen-Chi Yang <wolkayang at gmail.com> Agreed, this should be applied. Does BSD version have same problem? Acked-by: Stephen Hemminger <stephen at networkplumber.org>
