On Thu, Feb 18, 2016 at 7:56 PM, Ross Green <rgker...@gmail.com> wrote: > Well a bonus extra! > Kept everything running and there was another stall. > So i have included the demsg output for perusal. > > Just to clear things up there is no hotplug involved in this system. > It is a standard Pandaboard ES Ti4460 two processor system. > I use this for testing as a generic armv7 processor, plus can keep it > just running along for testing for a long time. the system has a total > of 23-25 process running on average. Mainly standard daemons. There is > certainly no heavy processing going on. I run a series of benchmarks > that are cpu intensive for the first 20 miinutes after boot and then > just leave it idle away. checking every so often to see how it has > gone. > As mentioned I have observed these stalls going back to 3.17 kernel. > It will often take up to a week to record such a stall. I will > typically test every new release kernel, so the -rc? series will get > around a weeks testing.
Sorry. Kind of hopping in a bit late here. Is this always happening with just the pandaboard? Or are you seeing this on different machines? Have you tried enabling CONFIG_DEBUG_TIMEKEEPING just in case something is going awry there? thanks -john