From: kbuild test robot <lkp@intel.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: kbuild-all@01.org, linux-kernel@vger.kernel.org,
Ingo Molnar <mingo@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: Re: [PATCH 4/4] rcu: Fix dyntick-idle tracing
Date: Fri, 7 Apr 2017 12:50:29 +0800 [thread overview]
Message-ID: <201704071217.A0zms853%fengguang.wu@intel.com> (raw)
In-Reply-To: <20170406164432.500893989@goodmis.org>
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Hi Paul,
[auto build test ERROR on tip/perf/core]
[also build test ERROR on v4.11-rc5 next-20170406]
[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/Steven-Rostedt/tracing-Add-usecase-of-synchronize_rcu_tasks-and-stack_tracer_disable/20170407-122352
config: x86_64-randconfig-x009-201714 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
kernel/rcu/tree.c: In function 'rcu_eqs_enter_common':
>> kernel/rcu/tree.c:806:2: error: implicit declaration of function 'stack_tracer_enable' [-Werror=implicit-function-declaration]
stack_tracer_enable();
^~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +/stack_tracer_enable +806 kernel/rcu/tree.c
800 do_nocb_deferred_wakeup(rdp);
801 }
802 rcu_prepare_for_idle();
803 stack_tracer_disable();
804 rdtp->dynticks_nesting = 0; /* Breaks tracing momentarily. */
805 rcu_dynticks_eqs_enter(); /* After this, tracing works again. */
> 806 stack_tracer_enable();
807 rcu_dynticks_task_enter();
808
809 /*
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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prev parent reply other threads:[~2017-04-07 4:50 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-06 16:42 [PATCH 0/4] tracing: Add usecase of synchronize_rcu_tasks() and stack_tracer_disable() Steven Rostedt
2017-04-06 16:42 ` [PATCH 1/4] ftrace: Add use of synchronize_rcu_tasks() with dynamic trampolines Steven Rostedt
2017-04-06 18:05 ` Paul E. McKenney
2017-04-06 18:13 ` Steven Rostedt
2017-04-06 20:20 ` Paul E. McKenney
2017-04-06 16:42 ` [PATCH 2/4] tracing: Replace the per_cpu() with this_cpu() in trace_stack.c Steven Rostedt
2017-04-06 16:42 ` [PATCH 3/4] tracing: Add stack_tracer_disable/enable() functions Steven Rostedt
2017-04-06 18:12 ` Paul E. McKenney
2017-04-06 18:48 ` Steven Rostedt
2017-04-06 20:21 ` Paul E. McKenney
2017-04-06 21:23 ` Steven Rostedt
2017-04-06 22:08 ` Paul E. McKenney
2017-04-06 23:57 ` Steven Rostedt
2017-04-06 16:42 ` [PATCH 4/4] rcu: Fix dyntick-idle tracing Steven Rostedt
2017-04-06 18:01 ` Paul E. McKenney
2017-04-07 4:50 ` kbuild test robot [this message]
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