On Fri, 2013-04-19 at 11:08 -0700, KOSAKI Motohiro wrote: > On Fri, Apr 19, 2013 at 10:38 AM, KOSAKI Motohiro > <kosaki.motoh...@gmail.com> wrote: > >> I feel we are hitting the same issue than this patch: > >> https://lkml.org/lkml/2013/4/5/116 > >> > >> I'm adding Kosaki in Cc, who proposed roughly the same fix. > > > > Thanks to CCing. I'm now sitting LSF and I can't read whole tons emails. > > However the fix is definitely same and I definitely agree this approach. > > > > thank you. > > And if I understand correctly, update_gt_cputime() is no longer > necessary after this patch because time never makes backward. > > What do you think?
Kosaki, I would tend to say that what you propose is exact. After having added the task deltas I was puzzled to see the cputimer still moving faster than the process clock. I was seeing it with the the help of printk statement inside update_gt_cputime(). After nailing down the last remaining cause of that inside sched/core.c, I have never seen after the cputimer being in advance. -- 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/
