Messages in this thread | | | Subject | Re: [3.6-rc1] sched: clock counts too quickly | From | Tetsuo Handa <> | Date | Sat, 4 Aug 2012 22:46:08 +0900 |
| |
Hello.
Bisected to 2a8c0883 "time: Move xtime_nsec adjustment underflow handling timekeeping_adjust".
Would you check?
Regards.
Tetsuo Handa wrote: > Tetsuo Handa wrote: > > > Under unknown condition, clock starts counting up too quickly which is enough > > > to confuse hangcheck timer to print stall warning. > > I wrote a test program. > > I suspected that this is a problem within adjtimex() because strace reported clock > jump at adjtimex(). But I've just hit this problem with settimeofday() alone. > > ---------- test program 2 start ---------- > #include <sys/timex.h> > > int main(int argc, char *argv[]) > { > while (1) { > struct timeval tv; > struct timezone tz; > gettimeofday(&tv, &tz); > settimeofday(&tv, &tz); > } > return 0; > } > ---------- test program 2 end ---------- > > Regards.
| |