Hi Michal, [auto build test ERROR on tip/perf/core] [also build test ERROR on v4.9 next-20161214] [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/Michal-Hocko/mm-oom-add-oom-detection-tracepoints/20161214-231225 config: x86_64-randconfig-s2-12142134 (attached as .config) compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All error/warnings (new ones prefixed by >>): In file included from include/trace/trace_events.h:361, from include/trace/define_trace.h:95, from include/trace/events/compaction.h:356, from mm/compaction.c:43: include/trace/events/compaction.h: In function 'trace_raw_output_mm_compaction_end': >> include/trace/events/compaction.h:134: error: expected expression before ',' token include/trace/events/compaction.h: In function 'trace_raw_output_mm_compaction_suitable_template': include/trace/events/compaction.h:195: error: expected expression before ',' token >> include/trace/events/compaction.h:195: warning: missing braces around initializer include/trace/events/compaction.h:195: warning: (near initialization for 'symbols[0]') >> include/trace/events/compaction.h:195: error: initializer element is not constant include/trace/events/compaction.h:195: error: (near initialization for 'symbols[0].mask') vim +134 include/trace/events/compaction.h 16c4a097 Joonsoo Kim 2015-02-11 128 __entry->migrate_pfn, 16c4a097 Joonsoo Kim 2015-02-11 129 __entry->free_pfn, 16c4a097 Joonsoo Kim 2015-02-11 130 __entry->zone_end, 16c4a097 Joonsoo Kim 2015-02-11 131 __entry->sync ? "sync" : "async") 0eb927c0 Mel Gorman 2014-01-21 132 ); 0eb927c0 Mel Gorman 2014-01-21 133 0eb927c0 Mel Gorman 2014-01-21 @134 TRACE_EVENT(mm_compaction_end, 16c4a097 Joonsoo Kim 2015-02-11 135 TP_PROTO(unsigned long zone_start, unsigned long migrate_pfn, 16c4a097 Joonsoo Kim 2015-02-11 136 unsigned long free_pfn, unsigned long zone_end, bool sync, 16c4a097 Joonsoo Kim 2015-02-11 137 int status), 0eb927c0 Mel Gorman 2014-01-21 138 16c4a097 Joonsoo Kim 2015-02-11 139 TP_ARGS(zone_start, migrate_pfn, free_pfn, zone_end, sync, status), 0eb927c0 Mel Gorman 2014-01-21 140 0eb927c0 Mel Gorman 2014-01-21 141 TP_STRUCT__entry( 16c4a097 Joonsoo Kim 2015-02-11 142 __field(unsigned long, zone_start) 16c4a097 Joonsoo Kim 2015-02-11 143 __field(unsigned long, migrate_pfn) 16c4a097 Joonsoo Kim 2015-02-11 144 __field(unsigned long, free_pfn) 16c4a097 Joonsoo Kim 2015-02-11 145 __field(unsigned long, zone_end) 16c4a097 Joonsoo Kim 2015-02-11 146 __field(bool, sync) 0eb927c0 Mel Gorman 2014-01-21 147 __field(int, status) 0eb927c0 Mel Gorman 2014-01-21 148 ), 0eb927c0 Mel Gorman 2014-01-21 149 0eb927c0 Mel Gorman 2014-01-21 150 TP_fast_assign( 16c4a097 Joonsoo Kim 2015-02-11 151 __entry->zone_start = zone_start; 16c4a097 Joonsoo Kim 2015-02-11 152 __entry->migrate_pfn = migrate_pfn; 16c4a097 Joonsoo Kim 2015-02-11 153 __entry->free_pfn = free_pfn; 16c4a097 Joonsoo Kim 2015-02-11 154 __entry->zone_end = zone_end; 16c4a097 Joonsoo Kim 2015-02-11 155 __entry->sync = sync; 0eb927c0 Mel Gorman 2014-01-21 156 __entry->status = status; 0eb927c0 Mel Gorman 2014-01-21 157 ), 0eb927c0 Mel Gorman 2014-01-21 158 16c4a097 Joonsoo Kim 2015-02-11 159 TP_printk("zone_start=0x%lx migrate_pfn=0x%lx free_pfn=0x%lx zone_end=0x%lx, mode=%s status=%s", 16c4a097 Joonsoo Kim 2015-02-11 160 __entry->zone_start, 16c4a097 Joonsoo Kim 2015-02-11 161 __entry->migrate_pfn, 16c4a097 Joonsoo Kim 2015-02-11 162 __entry->free_pfn, 16c4a097 Joonsoo Kim 2015-02-11 163 __entry->zone_end, 16c4a097 Joonsoo Kim 2015-02-11 164 __entry->sync ? "sync" : "async", fa6c7b46 Vlastimil Babka 2015-11-05 165 __print_symbolic(__entry->status, COMPACTION_STATUS)) 0eb927c0 Mel Gorman 2014-01-21 166 ); b7aba698 Mel Gorman 2011-01-13 167 837d026d Joonsoo Kim 2015-02-11 168 TRACE_EVENT(mm_compaction_try_to_compact_pages, 837d026d Joonsoo Kim 2015-02-11 169 837d026d Joonsoo Kim 2015-02-11 170 TP_PROTO( 837d026d Joonsoo Kim 2015-02-11 171 int order, 837d026d Joonsoo Kim 2015-02-11 172 gfp_t gfp_mask, a5508cd8 Vlastimil Babka 2016-07-28 173 int prio), 837d026d Joonsoo Kim 2015-02-11 174 a5508cd8 Vlastimil Babka 2016-07-28 175 TP_ARGS(order, gfp_mask, prio), 837d026d Joonsoo Kim 2015-02-11 176 837d026d Joonsoo Kim 2015-02-11 177 TP_STRUCT__entry( 837d026d Joonsoo Kim 2015-02-11 178 __field(int, order) 837d026d Joonsoo Kim 2015-02-11 179 __field(gfp_t, gfp_mask) a5508cd8 Vlastimil Babka 2016-07-28 180 __field(int, prio) 837d026d Joonsoo Kim 2015-02-11 181 ), 837d026d Joonsoo Kim 2015-02-11 182 837d026d Joonsoo Kim 2015-02-11 183 TP_fast_assign( 837d026d Joonsoo Kim 2015-02-11 184 __entry->order = order; 837d026d Joonsoo Kim 2015-02-11 185 __entry->gfp_mask = gfp_mask; a5508cd8 Vlastimil Babka 2016-07-28 186 __entry->prio = prio; 837d026d Joonsoo Kim 2015-02-11 187 ), 837d026d Joonsoo Kim 2015-02-11 188 a5508cd8 Vlastimil Babka 2016-07-28 189 TP_printk("order=%d gfp_mask=0x%x priority=%d", 837d026d Joonsoo Kim 2015-02-11 190 __entry->order, 837d026d Joonsoo Kim 2015-02-11 191 __entry->gfp_mask, a5508cd8 Vlastimil Babka 2016-07-28 192 __entry->prio) 837d026d Joonsoo Kim 2015-02-11 193 ); 837d026d Joonsoo Kim 2015-02-11 194 837d026d Joonsoo Kim 2015-02-11 @195 DECLARE_EVENT_CLASS(mm_compaction_suitable_template, 837d026d Joonsoo Kim 2015-02-11 196 837d026d Joonsoo Kim 2015-02-11 197 TP_PROTO(struct zone *zone, 837d026d Joonsoo Kim 2015-02-11 198 int order, :::::: The code at line 134 was first introduced by commit :::::: 0eb927c0ab789d3d7d69f68acb850f69d4e7c36f mm: compaction: trace compaction begin and end :::::: TO: Mel Gorman :::::: CC: Linus Torvalds --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation