Re: Ktimer / -rt9 (+custom) monotonic_clock going backwards.

* Steven Rostedt <[email protected]> wrote:

> Hi Thomas,
> 
> I switched my custom kernel timer to use the ktimers with the prio of 
> -1 as you mentioned to me offline.  I set up the timer to be monotonic 
> and have a requirement that the returned time is always greater or 
> equal to the last time returned from do_get_ktime_mono.
> 
> Now here's the results that I got between two calls of 
> do_get_ktime_mono
> 
> 358.069795728 secs then later 355.981483177.  Should this ever happen?

should be monotone - the latest -rt kernels include a debugging check 
for the monotonicity of do_get_ktime_mono().

	Ingo
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