On 24 April 2014 14:01, Daniel Sangorrin <daniel.sangor...@toshiba.co.jp> wrote: > In kernel/cpuset.c:quiesce_cpuset() you are using the function > 'smp_call_function_any' which asks CPU cores in 'cpumask' to > execute the functions 'hrtimer_quiesce_cpu' and 'timer_quiesce_cpu'. > > In the case above, 'cpumask' corresponds to core 0. Since I'm forcing > the call to be executed from core 1 (by using taskset), > an inter-processor interrupt is sent to core 0 for those functions > to be executed.
Ahh, I understood that now :) .. So we are setting cpuset.quiesce from CPU1 which will do a IPI to get migrate_timers called on CPU0.. I was setting quiesce from CPU0 only in my tests :) But how does this work fine on x86 then? There we should have exactly same problem, isn't it? > Ok, thank you! I see that you have already fixed the problem. I tested > your tree on ARM and now it seems to work correctly. Yeah, I just pushed your changes as well at the time I wrote last mail :) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
