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| Started by | Punit Agrawal <punit.agrawal@arm.com> |
|---|---|
| First post | 2017-05-25 19:30 +0200 |
| Last post | 2017-05-25 19:30 +0200 |
| Articles | 1 — 1 participant |
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Re: [PATCH v4 8/8] mm: rmap: Use correct helper when poisoning hugepages Punit Agrawal <punit.agrawal@arm.com> - 2017-05-25 19:30 +0200
| From | Punit Agrawal <punit.agrawal@arm.com> |
|---|---|
| Date | 2017-05-25 19:30 +0200 |
| Subject | Re: [PATCH v4 8/8] mm: rmap: Use correct helper when poisoning hugepages |
| Message-ID | <tL4Ke-2DT-23@gated-at.bofh.it> |
kbuild test robot <lkp@intel.com> writes:
> Hi Punit,
>
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.12-rc2 next-20170524]
> [cannot apply to mmotm/master]
> [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/Punit-Agrawal/Support-for-contiguous-pte-hugepages/20170524-221905
> config: x86_64-kexec (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/rmap.c: In function 'try_to_unmap_one':
>>> mm/rmap.c:1386:5: error: implicit declaration of function 'set_huge_swap_pte_at' [-Werror=implicit-function-declaration]
> set_huge_swap_pte_at(mm, address,
> ^~~~~~~~~~~~~~~~~~~~
> cc1: some warnings being treated as errors
>
> vim +/set_huge_swap_pte_at +1386 mm/rmap.c
>
> 1380
> 1381 if (PageHWPoison(page) && !(flags & TTU_IGNORE_HWPOISON)) {
> 1382 pteval = swp_entry_to_pte(make_hwpoison_entry(subpage));
> 1383 if (PageHuge(page)) {
> 1384 int nr = 1 << compound_order(page);
> 1385 hugetlb_count_sub(nr, mm);
>> 1386 set_huge_swap_pte_at(mm, address,
> 1387 pvmw.pte, pteval,
> 1388 vma_mmu_pagesize(vma));
> 1389 } else {
>
Thanks for the report. The build failure is caused due to missing
function definition for set_huge_swap_pte_at() when CONFIG_HUGETLB_PAGE
is disabled. I've posted an update to Patch 7 where the function is
introduced to fix this issue.
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation
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