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Re: [PATCH-tip v6 18/22] TP-futex: Group readers together in wait queue

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Hi Waiman,

[auto build test ERROR on next-20170323]
[also build test ERROR on v4.11-rc3]
[cannot apply to linus/master linux/master tip/perf/core v4.9-rc8 v4.9-rc7 v4.9-rc6]
[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/Waiman-Long/perf-bench-New-microbenchmark-for-userspace-mutex-performance/20170324-135043
config: ia64-defconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 6.2.0
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=ia64 

All errors (new ones prefixed by >>):

   kernel/built-in.o: In function `futex_lock':
>> futex.c:(.text+0xfa4a2): undefined reference to `osq_lock'
>> futex.c:(.text+0xfae22): undefined reference to `osq_unlock'
   futex.c:(.text+0xfaf02): undefined reference to `osq_unlock'
   futex.c:(.text+0xfb502): undefined reference to `osq_lock'
   futex.c:(.text+0xfb9e2): undefined reference to `osq_unlock'

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

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[PATCH-tip v6 00/22] futex: Introducing throughput-optimized (TP) futexes Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 12/22] TP-futex: Return status code on FUTEX_LOCK calls Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 11/22] TP-futex: Implement lock handoff to prevent lock starvation Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 20/22] perf bench: Extend mutex/rwlock futex suite to test TP futexes Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 21/22] sched, TP-futex: Make wake_up_q() return wakeup count Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 02/22] perf bench: New microbenchmark for userspace rwlock performance Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 03/22] futex: Consolidate duplicated timer setup code Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 04/22] futex: Rename futex_pi_state to futex_state Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 22/22] futex: Dump internal futex state via debugfs Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 19/22] TP-futex, doc: Update TP futexes document on shared locking Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 08/22] futex: Allow direct attachment of futex_state objects to hash bucket Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 09/22] futex: Introduce throughput-optimized (TP) futexes Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 01/22] perf bench: New microbenchmark for userspace mutex performance Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 18/22] TP-futex: Group readers together in wait queue Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
    Re: [PATCH-tip v6 18/22] TP-futex: Group readers together in wait  queue kbuild test robot <lkp@intel.com> - 2017-03-24 09:30 +0100
    Re: [PATCH-tip v6 18/22] TP-futex: Group readers together in wait  queue kbuild test robot <lkp@intel.com> - 2017-03-24 09:40 +0100
  [PATCH-tip v6 16/22] TP-futex: Support userspace reader/writer locks Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 13/22] TP-futex: Add timeout support Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 17/22] TP-futex: Enable kernel reader lock stealing Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 05/22] futex: Add helpers to get & cmpxchg futex value without lock Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 10/22] TP-futex: Enable robust handling Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 07/22] futex: Add a new futex type field into futex_state Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 15/22] TP-futex, doc: Add TP futexes documentation Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100
  [PATCH-tip v6 14/22] TP-futex: Optionally return EAGAIN for userspace locking Waiman Long <longman@redhat.com> - 2017-03-22 18:50 +0100

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