Hi Naoya, [auto build test WARNING on mmotm/master] [also build test WARNING on next-20161028] [cannot apply to v4.9-rc4] [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/Naoya-Horiguchi/mm-x86-move-_PAGE_SWP_SOFT_DIRTY-from-bit-7-to-bit-6/20161108-080615 base: git://git.cmpxchg.org/linux-mmotm.git master config: x86_64-randconfig-x003-201645 (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 warnings (new ones prefixed by >>): mm/memory_hotplug.c: In function 'try_offline_node': mm/memory_hotplug.c:2131:6: warning: unused variable 'i' [-Wunused-variable] int i; ^ In file included from include/uapi/linux/stddef.h:1:0, from include/linux/stddef.h:4, from mm/memory_hotplug.c:7: mm/memory_hotplug.c: In function 'new_node_page': include/linux/compiler.h:518:38: error: call to '__compiletime_assert_1575' declared with attribute error: BUILD_BUG failed _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/compiler.h:160:16: note: in definition of macro '__trace_if' ______r = !!(cond); \ ^~~~ >> mm/memory_hotplug.c:1575:2: note: in expansion of macro 'if' if (new_page && order == HPAGE_PMD_ORDER) ^~ include/linux/compiler.h:506:2: note: in expansion of macro '__compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:518:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^~~~~~~~~~~~~~~~~~~ include/linux/bug.h:54:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^~~~~~~~~~~~~~~~~~ include/linux/bug.h:88:21: note: in expansion of macro 'BUILD_BUG_ON_MSG' #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed") ^~~~~~~~~~~~~~~~ include/linux/huge_mm.h:181:28: note: in expansion of macro 'BUILD_BUG' #define HPAGE_PMD_SHIFT ({ BUILD_BUG(); 0; }) ^~~~~~~~~ include/linux/huge_mm.h:56:26: note: in expansion of macro 'HPAGE_PMD_SHIFT' #define HPAGE_PMD_ORDER (HPAGE_PMD_SHIFT-PAGE_SHIFT) ^~~~~~~~~~~~~~~ mm/memory_hotplug.c:1575:27: note: in expansion of macro 'HPAGE_PMD_ORDER' if (new_page && order == HPAGE_PMD_ORDER) ^~~~~~~~~~~~~~~ vim +/if +1575 mm/memory_hotplug.c 1559 gfp_mask |= GFP_TRANSHUGE; 1560 } 1561 1562 node_clear(nid, nmask); 1563 1564 if (PageHighMem(page) 1565 || (zone_idx(page_zone(page)) == ZONE_MOVABLE)) 1566 gfp_mask |= __GFP_HIGHMEM; 1567 1568 if (!nodes_empty(nmask)) 1569 new_page = __alloc_pages_nodemask(gfp_mask, order, 1570 node_zonelist(nid, gfp_mask), &nmask); 1571 if (!new_page) 1572 new_page = __alloc_pages(gfp_mask, order, 1573 node_zonelist(nid, gfp_mask)); 1574 > 1575 if (new_page && order == HPAGE_PMD_ORDER) 1576 prep_transhuge_page(new_page); 1577 1578 return new_page; 1579 } 1580 1581 #define NR_OFFLINE_AT_ONCE_PAGES (256) 1582 static int 1583 do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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