[hobbit] Weird application freeze problem

Rich Smrcina rsmrcina at wi.rr.com
Tue Sep 9 05:26:40 CEST 2008


I'll pass this on, thanks.

Ralph Mitchell wrote:
> Does your ntpdate have the  -B option??  If so, it can make the 
> adjustment slowly.
> 
>  From the Gentoo Linux manpage:
> 
>        -B     Force  the  time  to always be slewed using the adjtime() 
> system
>               call, even if the measured offset is greater than +-128 
> ms.  The
>               default  is  to step the time using settimeofday() if the 
> offset
>               is greater than +-128 ms. Note  that,  if  the  offset  
> is  much
>               greater than +-128 ms in this case, that it can take a 
> long time
>               (hours) to slew the clock to  the  correct  value.  
> During  this
>               time. the host should not be used to synchronize clients.
> 
>  From the NOTES section of the adjtime(3) man page:
> 
>        The adjustment that adjtime() makes to the clock is carried out 
> in such
>        a manner that the clock is always monotonically increasing.  
> Using adj-
>        time()  to adjust the time prevents the problems that can be 
> caused for
>        certain applications (e.g., make(1)) by  abrupt  positive  or  
> negative
>        jumps in the system time.
> 
> Ralph Mitchell

-- 
Rich Smrcina
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