Hi Thomas, I see a strange behavior on the parisc platform, for which I'm not sure if it's intended or if there is a bug somewhere.
The program calls timerfd_settime() and sets a timer (e.g. sec=0, nsec=100000000). Directly after setting the timer it calls timerfd_gettime() and receives (sec=0, nsec=103914413). The second nsec is higher than the initial nsec value which was set. Does timerfd_settime() maybe tries to add the initial time it takes to start the timer? Any idea or hint? Thanks, Helge Background: I'm debugging the build-failure on debian for the liblinux-fd-perl package: https://buildd.debian.org/status/fetch.php?pkg=liblinux-fd-perl&arch=hppa&ver=0.011-1&stamp=1443355593 Here is a log which I get from kernel after adding some printks. The problematic line is #3. [ 465.888000] timerfd_settime: interval (sec=0, nsec=0) it_value (sec=0, nsec=100000000) [ 466.196000] timerfd_settime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=100000000) [ 466.300000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=103914413) [ 466.404000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=97444552) [ 466.508000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=92611704) [ 466.616000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=87376859) [ 466.720000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=82538534) [ 466.824000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=77293289) [ 466.928000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=72501584) [ 467.036000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=67377673) [ 467.140000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=62631601) [ 467.244000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=57401824) -- 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/
