linux-kernel - Re: [PATCH] mm/madvise: Dont poison entire HugeTLB page for single page errors

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Message-ID: <201704202150.DfEKJvdt%fengguang.wu@intel.com>
Date:   Thu, 20 Apr 2017 21:48:02 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Anshuman Khandual <khandual@...ux.vnet.ibm.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, n-horiguchi@...jp.nec.com,
        akpm@...ux-foundation.org, aneesh.kumar@...ux.vnet.ibm.com
Subject: Re: [PATCH] mm/madvise: Dont poison entire HugeTLB page for single
 page errors

Hi Anshuman,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.11-rc7 next-20170420]
[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/Anshuman-Khandual/mm-madvise-Dont-poison-entire-HugeTLB-page-for-single-page-errors/20170420-204009
config: x86_64-randconfig-x012-201716 (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 >>):

   mm/memory-failure.c: In function 'soft_offline_huge_page':
>> mm/memory-failure.c:1605:4: error: implicit declaration of function 'dissolve_free_huge_page' [-Werror=implicit-function-declaration]
       dissolve_free_huge_page(hpage);
       ^~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/dissolve_free_huge_page +1605 mm/memory-failure.c

  1599			/* overcommit hugetlb page will be freed to buddy */
  1600			SetPageHWPoison(page);
  1601			num_poisoned_pages_inc();
  1602	
  1603			if (PageHuge(page)) {
  1604				dequeue_hwpoisoned_huge_page(hpage);
> 1605				dissolve_free_huge_page(hpage);
  1606			}
  1607		}
  1608		return ret;

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