CC: kbuild-all(a)lists.01.org CC: linux-kernel(a)vger.kernel.org TO: Zong Li CC: Andrew Morton CC: Linux Memory Management List Hi Zong, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: e609571b5ffa3528bf85292de1ceaddac342bc1c commit: b422d28b21773bbfc9e84dbb5579a8ce355279ca riscv: support DEBUG_WX date: 7 months ago :::::: branch date: 6 hours ago :::::: commit date: 7 months ago config: riscv-randconfig-m031-20210112 (attached as .config) compiler: riscv32-linux-gcc (GCC) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot Reported-by: Dan Carpenter smatch warnings: arch/riscv/mm/ptdump.c:210 note_page() warn: should '(pte_pfn(($expr_0x7f0526438120(24)))) << (12)' be a 64 bit type? vim +210 arch/riscv/mm/ptdump.c 59c4da8640ccf472 Zong Li 2020-03-12 205 59c4da8640ccf472 Zong Li 2020-03-12 206 static void note_page(struct ptdump_state *pt_st, unsigned long addr, 99395ee3f7b4accc Steven Price 2020-06-01 207 int level, u64 val) 59c4da8640ccf472 Zong Li 2020-03-12 208 { 59c4da8640ccf472 Zong Li 2020-03-12 209 struct pg_state *st = container_of(pt_st, struct pg_state, ptdump); 59c4da8640ccf472 Zong Li 2020-03-12 @210 u64 pa = PFN_PHYS(pte_pfn(__pte(val))); 59c4da8640ccf472 Zong Li 2020-03-12 211 u64 prot = 0; 59c4da8640ccf472 Zong Li 2020-03-12 212 59c4da8640ccf472 Zong Li 2020-03-12 213 if (level >= 0) 59c4da8640ccf472 Zong Li 2020-03-12 214 prot = val & pg_level[level].mask; 59c4da8640ccf472 Zong Li 2020-03-12 215 59c4da8640ccf472 Zong Li 2020-03-12 216 if (st->level == -1) { 59c4da8640ccf472 Zong Li 2020-03-12 217 st->level = level; 59c4da8640ccf472 Zong Li 2020-03-12 218 st->current_prot = prot; 59c4da8640ccf472 Zong Li 2020-03-12 219 st->start_address = addr; 59c4da8640ccf472 Zong Li 2020-03-12 220 st->start_pa = pa; 59c4da8640ccf472 Zong Li 2020-03-12 221 st->last_pa = pa; 59c4da8640ccf472 Zong Li 2020-03-12 222 pt_dump_seq_printf(st->seq, "---[ %s ]---\n", st->marker->name); 59c4da8640ccf472 Zong Li 2020-03-12 223 } else if (prot != st->current_prot || 59c4da8640ccf472 Zong Li 2020-03-12 224 level != st->level || addr >= st->marker[1].start_address) { 59c4da8640ccf472 Zong Li 2020-03-12 225 if (st->current_prot) { 59c4da8640ccf472 Zong Li 2020-03-12 226 note_prot_wx(st, addr); 59c4da8640ccf472 Zong Li 2020-03-12 227 dump_addr(st, addr); 59c4da8640ccf472 Zong Li 2020-03-12 228 dump_prot(st); 59c4da8640ccf472 Zong Li 2020-03-12 229 pt_dump_seq_puts(st->seq, "\n"); 59c4da8640ccf472 Zong Li 2020-03-12 230 } 59c4da8640ccf472 Zong Li 2020-03-12 231 59c4da8640ccf472 Zong Li 2020-03-12 232 while (addr >= st->marker[1].start_address) { 59c4da8640ccf472 Zong Li 2020-03-12 233 st->marker++; 59c4da8640ccf472 Zong Li 2020-03-12 234 pt_dump_seq_printf(st->seq, "---[ %s ]---\n", 59c4da8640ccf472 Zong Li 2020-03-12 235 st->marker->name); 59c4da8640ccf472 Zong Li 2020-03-12 236 } 59c4da8640ccf472 Zong Li 2020-03-12 237 59c4da8640ccf472 Zong Li 2020-03-12 238 st->start_address = addr; 59c4da8640ccf472 Zong Li 2020-03-12 239 st->start_pa = pa; 59c4da8640ccf472 Zong Li 2020-03-12 240 st->last_pa = pa; 59c4da8640ccf472 Zong Li 2020-03-12 241 st->current_prot = prot; 59c4da8640ccf472 Zong Li 2020-03-12 242 st->level = level; 59c4da8640ccf472 Zong Li 2020-03-12 243 } else { 59c4da8640ccf472 Zong Li 2020-03-12 244 st->last_pa = pa; 59c4da8640ccf472 Zong Li 2020-03-12 245 } 59c4da8640ccf472 Zong Li 2020-03-12 246 } 59c4da8640ccf472 Zong Li 2020-03-12 247 :::::: The code at line 210 was first introduced by commit :::::: 59c4da8640ccf4721d54d36835706f3eefb521a4 riscv: Add support to dump the kernel page tables :::::: TO: Zong Li :::::: CC: Palmer Dabbelt --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org