Re: [PATCH 4/4] kernel/time/clockevents: compensate for monotonic clock's dynamic frequency

From	kbuild test robot <lkp@intel.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 4/4] kernel/time/clockevents: compensate for monotonic clock's dynamic frequency
Date	2016-07-10 16:00 +0200
Message-ID	<rTnr4-1mY-9@gated-at.bofh.it> (permalink)
References	<rTm1X-AD-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hi,

[auto build test ERROR on tip/timers/core]
[also build test ERROR on v4.7-rc6 next-20160708]
[cannot apply to tip/x86/core]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Nicolai-Stange/avoid-double-timer-interrupt-with-nohz-and-Intel-TSC/20160710-202914
config: sh-sh7785lcr_32bit_defconfig (attached as .config)
compiler: sh4-linux-gnu-gcc (Debian 5.3.1-8) 5.3.1 20160205
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=sh 

All errors (new ones prefixed by >>):

   kernel/built-in.o: In function `timekeeping_mono_interval_to_raw':
>> kernel/time/timekeeping.c:2164: undefined reference to `__divdi3'

vim +2164 kernel/time/timekeeping.c

  2158		 * that is they cancel.
  2159		 */
  2160		if (KTIME_MAX / raw_mult < interval)
  2161			return KTIME_MAX;
  2162		raw = interval * raw_mult;
  2163	
> 2164		if (KTIME_MAX - mono_mult / 2 < raw)
  2165			return KTIME_MAX;
  2166		raw += mono_mult / 2; /* round properly */
  2167		raw /= mono_mult;

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Thread

[PATCH 0/4] avoid double timer interrupt with nohz and Intel TSC Nicolai Stange <nicstange@gmail.com> - 2016-07-10 14:30 +0200
  [PATCH 4/4] kernel/time/clockevents: compensate for monotonic clock's dynamic frequency Nicolai Stange <nicstange@gmail.com> - 2016-07-10 14:30 +0200
    Re: [PATCH 4/4] kernel/time/clockevents: compensate for monotonic  clock's dynamic frequency kbuild test robot <lkp@intel.com> - 2016-07-10 15:30 +0200
    Re: [PATCH 4/4] kernel/time/clockevents: compensate for monotonic  clock's dynamic frequency kbuild test robot <lkp@intel.com> - 2016-07-10 16:00 +0200
    Re: [PATCH 4/4] kernel/time/clockevents: compensate for monotonic  clock's dynamic frequency kbuild test robot <lkp@intel.com> - 2016-07-10 16:20 +0200
  [PATCH 3/4] arch, x86, tsc: inform TSC deadline clockevent device about recalibration Nicolai Stange <nicstange@gmail.com> - 2016-07-10 14:30 +0200
    Re: [PATCH 3/4] arch, x86, tsc: inform TSC deadline clockevent  device about recalibration kbuild test robot <lkp@intel.com> - 2016-07-10 14:50 +0200
  [PATCH 2/4] arch, x86, tsc deadline clockevent dev: reduce TSC_DIVISOR to 2 Nicolai Stange <nicstange@gmail.com> - 2016-07-10 14:30 +0200
  Re: [PATCH 0/4] avoid double timer interrupt with nohz and Intel TSC Nicolai Stange <nicstange@gmail.com> - 2016-07-10 21:40 +0200

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