Re: [PATCH v5] fork: free vmapped stacks in cache when cpus are offline

From: kbuild test robot
Date: Sat Feb 11 2017 - 06:19:19 EST

Hi Hoeun,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.10-rc7 next-20170210]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 6.2.0
wget -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/fork.c: In function 'fork_init':
>> kernel/fork.c:483:2: error: implicit declaration of function 'vm_stack_cache_init' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors

vim +/vm_stack_cache_init +483 kernel/fork.c

477 init_task.signal->rlim[RLIMIT_NPROC];
479 for (i = 0; i < UCOUNT_COUNTS; i++) {
480 init_user_ns.ucount_max[i] = max_threads/2;
481 }
> 483 vm_stack_cache_init();
484 }
486 int __weak arch_dup_task_struct(struct task_struct *dst,

0-DAY kernel test infrastructure Open Source Technology Center Intel Corporation

Attachment: .config.gz
Description: application/gzip