Messages in this thread | | | Date | Fri, 9 Jul 2021 14:53:47 +0800 | From | kernel test robot <> | Subject | Re: [PATCH] kernel/sched/core: Print the time when the process entered the D state |
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Hi zhouchuangao,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on tip/sched/core] [also build test ERROR on tip/master linux/master linus/master v5.13 next-20210709] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/zhouchuangao/kernel-sched-core-Print-the-time-when-the-process-entered-the-D-state/20210709-130636 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 031e3bd8986fffe31e1ddbf5264cccfe30c9abd7 config: i386-tinyconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/287f10f679a0c30c4ac57abb8a36e698619554d5 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review zhouchuangao/kernel-sched-core-Print-the-time-when-the-process-entered-the-D-state/20210709-130636 git checkout 287f10f679a0c30c4ac57abb8a36e698619554d5 # save the attached .config to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash kernel/sched/
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
kernel/sched/core.c: In function 'ttwu_stat': kernel/sched/core.c:3267:13: warning: variable 'rq' set but not used [-Wunused-but-set-variable] 3267 | struct rq *rq; | ^~ In file included from include/linux/kernel.h:17, from arch/x86/include/asm/percpu.h:27, from arch/x86/include/asm/current.h:6, from include/linux/sched.h:12, from include/linux/kthread.h:6, from include/trace/events/sched.h:8, from kernel/sched/core.c:10: kernel/sched/core.c: In function 'sched_show_task': >> kernel/sched/core.c:8158:16: error: 'struct sched_info' has no member named 'last_arrival' 8158 | p->sched_info.last_arrival); | ^ include/linux/printk.h:385:26: note: in definition of macro 'pr_cont' 385 | printk(KERN_CONT fmt, ##__VA_ARGS__) | ^~~~~~~~~~~
vim +8158 kernel/sched/core.c
8134 8135 void sched_show_task(struct task_struct *p) 8136 { 8137 unsigned long free = 0; 8138 int ppid; 8139 8140 if (!try_get_task_stack(p)) 8141 return; 8142 8143 pr_info("task:%-15.15s state:%c", p->comm, task_state_to_char(p)); 8144 8145 if (task_is_running(p)) 8146 pr_cont(" running task "); 8147 #ifdef CONFIG_DEBUG_STACK_USAGE 8148 free = stack_not_used(p); 8149 #endif 8150 ppid = 0; 8151 rcu_read_lock(); 8152 if (pid_alive(p)) 8153 ppid = task_pid_nr(rcu_dereference(p->real_parent)); 8154 rcu_read_unlock(); 8155 pr_cont(" stack:%5lu pid:%5d ppid:%6d flags:0x%08lx sched:%llu\n", 8156 free, task_pid_nr(p), ppid, 8157 (unsigned long)task_thread_info(p)->flags, > 8158 p->sched_info.last_arrival); 8159 8160 print_worker_info(KERN_INFO, p); 8161 print_stop_info(KERN_INFO, p); 8162 show_stack(p, NULL, KERN_INFO); 8163 put_task_stack(p); 8164 } 8165 EXPORT_SYMBOL_GPL(sched_show_task); 8166
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