Re: Ktimer / -rt9 (+custom) monotonic_clock going backwards.
From: Thomas Gleixner
Date: Fri Oct 21 2005 - 02:48:25 EST
On Fri, 2005-10-21 at 02:03 -0400, Steven Rostedt wrote:
> On Thu, 20 Oct 2005, Ingo Molnar wrote:
> With rc4-rt13 and changing cycle_t to u64, my machine ran all night
> without one backward step. Since it use to show up after a couple of
> hours, I would say that this is the fix.
> John, Do you want me to take a crack at changing the periodic_hook into
> using the ktimer code? I understand Ingo's kernel much more than you, but
> you definitely understand the timing code better than I.
I think the hook is too complex to move it into the timer interrupt
context. We still have to reimplement the dynamic priority adjustment of
the ktimer softirq in a clean way. Once this is done, we can move it
over and set a proper priority up for that.
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