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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, kernel test robot noticed "BUG:Bad_page_state_in_process" on: commit: ffb870b766822062b6c71211c80342c85a7ffcd8 ("[PATCH 1/4] mm: Use frozen pages for page tables") url: https://github.com/intel-lab-lkp/linux/commits/Matthew-Wilcox-Oracle/mm-Use-frozen-pages-for-page-tables/20251113-222907 base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/all/20251113140448.1814860-2-willy@infradead.org/ patch subject: [PATCH 1/4] mm: Use frozen pages for page tables in testcase: rcutorture version: with following parameters: runtime: 300s test: cpuhotplug torture_type: trivial config: x86_64-randconfig-101-20251114 compiler: clang-20 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 32G (please refer to attached dmesg/kmsg for entire log/backtrace) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202511172257.ffd96dab-lkp@intel.com [ 19.289760][ T422] BUG: Bad page state in process modprobe pfn:1618b2 [ 19.290414][ T422] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1618b2 [ 19.291313][ T422] flags: 0x8000000000000000(zone=2) [ 19.291714][ T422] raw: 8000000000000000 dead000000000100 dead000000000122 0000000000000000 [ 19.292382][ T422] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 19.293020][ T422] page dumped because: nonzero _refcount [ 19.293444][ T422] Modules linked in: [ 19.293804][ T422] CPU: 0 UID: 0 PID: 422 Comm: modprobe Not tainted 6.18.0-rc5-00422-gffb870b76682 #1 PREEMPT(none) 65c9d11eede624b36533d4efe2c3c7798fc76b60 [ 19.293811][ T422] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 19.293814][ T422] Call Trace: [ 19.293817][ T422] [ 19.293820][ T422] dump_stack_lvl (lib/dump_stack.c:123) [ 19.293834][ T422] ? show_regs_print_info (lib/dump_stack.c:104) [ 19.293842][ T422] ? smp_call_function_many (kernel/smp.c:784) [ 19.293847][ T422] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 19.293854][ T422] bad_page (mm/page_alloc.c:?) [ 19.293860][ T422] __free_frozen_pages (mm/page_alloc.c:?) [ 19.293870][ T422] change_page_attr_set_clr (include/linux/list.h:372) [ 19.293878][ T422] ? __set_memory_prot (arch/x86/mm/pat/set_memory.c:2041) [ 19.293884][ T422] ? __set_memory_prot (arch/x86/mm/pat/set_memory.c:2041) [ 19.293889][ T422] ? trace_contention_end (include/trace/events/lock.h:122) [ 19.293897][ T422] ? do_raw_spin_lock (arch/x86/include/asm/atomic.h:107) [ 19.293904][ T422] set_memory_rox (arch/x86/mm/pat/set_memory.c:2327) [ 19.293910][ T422] ? set_memory_nx (arch/x86/mm/pat/set_memory.c:2123 arch/x86/mm/pat/set_memory.c:2312) [ 19.293915][ T422] ? set_memory_ro (arch/x86/mm/pat/set_memory.c:2321) [ 19.293921][ T422] ? _raw_spin_unlock (arch/x86/include/asm/preempt.h:95 include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 19.293929][ T422] ? find_vmap_area (mm/vmalloc.c:2507) [ 19.293935][ T422] module_enable_text_rox (kernel/module/strict_rwx.c:40) [ 19.293943][ T422] complete_formation (kernel/module/main.c:3258) [ 19.293952][ T422] ? post_relocation (kernel/module/main.c:3237) [ 19.293959][ T422] ? init_build_id (kernel/module/kallsyms.c:?) [ 19.293967][ T422] load_module (kernel/module/main.c:3468) [ 19.293979][ T422] __se_sys_finit_module (kernel/module/main.c:? kernel/module/main.c:3713 kernel/module/main.c:3739 kernel/module/main.c:3723) [ 19.293987][ T422] ? __x64_sys_finit_module (kernel/module/main.c:3723) [ 19.293998][ T422] ? exc_page_fault (arch/x86/mm/fault.c:?) [ 19.294007][ T422] ? __ia32_sys_write (fs/read_write.c:754) [ 19.294015][ T422] ? do_sys_open (fs/open.c:1452) [ 19.294022][ T422] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 19.294026][ T422] do_syscall_64 (arch/x86/entry/syscall_64.c:?) [ 19.294034][ T422] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 19.294038][ T422] RIP: 0033:0x7f8d36fda779 [ 19.294042][ T422] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4f 86 0d 00 f7 d8 64 89 01 48 All code ======== 0: ff c3 inc %ebx 2: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 9: 00 00 00 c: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8b 0d 4f 86 0d 00 mov 0xd864f(%rip),%rcx # 0xd8689 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8b 0d 4f 86 0d 00 mov 0xd864f(%rip),%rcx # 0xd865f 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W [ 19.294046][ T422] RSP: 002b:00007ffe07ac3298 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 19.294051][ T422] RAX: ffffffffffffffda RBX: 000055b5fb23ae30 RCX: 00007f8d36fda779 [ 19.294054][ T422] RDX: 0000000000000000 RSI: 000055b5e55e332b RDI: 0000000000000004 [ 19.294056][ T422] RBP: 0000000000000000 R08: 0000000000000000 R09: 000055b5fb23c020 [ 19.294059][ T422] R10: 0000000000000000 R11: 0000000000000246 R12: 000055b5e55e332b [ 19.294061][ T422] R13: 0000000000040000 R14: 000055b5fb23ade0 R15: 0000000000000000 [ 19.294069][ T422] [ 19.294071][ T422] Disabling lock debugging due to kernel taint [ 19.373082][ T422] BUG: Bad page state in process modprobe pfn:163532 [ 19.373680][ T422] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x163532 [ 19.374387][ T422] flags: 0x8000000000000000(zone=2) [ 19.374795][ T422] raw: 8000000000000000 dead000000000100 dead000000000122 0000000000000000 [ 19.375424][ T422] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 19.376107][ T422] page dumped because: nonzero _refcount [ 19.376525][ T422] Modules linked in: torture [ 19.376917][ T422] CPU: 0 UID: 0 PID: 422 Comm: modprobe Tainted: G B 6.18.0-rc5-00422-gffb870b76682 #1 PREEMPT(none) 65c9d11eede624b36533d4efe2c3c7798fc76b60 [ 19.376925][ T422] Tainted: [B]=BAD_PAGE [ 19.376927][ T422] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 19.376930][ T422] Call Trace: [ 19.376933][ T422] [ 19.376936][ T422] dump_stack_lvl (lib/dump_stack.c:123) [ 19.376946][ T422] ? show_regs_print_info (lib/dump_stack.c:104) [ 19.376952][ T422] ? smp_call_function_many (kernel/smp.c:784) [ 19.376959][ T422] bad_page (mm/page_alloc.c:?) [ 19.376964][ T422] __free_frozen_pages (mm/page_alloc.c:?) [ 19.376972][ T422] change_page_attr_set_clr (include/linux/list.h:372) [ 19.376979][ T422] ? __set_memory_prot (arch/x86/mm/pat/set_memory.c:2041) [ 19.376984][ T422] ? __set_memory_prot (arch/x86/mm/pat/set_memory.c:2041) [ 19.376989][ T422] ? trace_contention_end (include/trace/events/lock.h:122) [ 19.376995][ T422] ? do_raw_spin_lock (arch/x86/include/asm/atomic.h:107) [ 19.377001][ T422] set_memory_rox (arch/x86/mm/pat/set_memory.c:2327) [ 19.377006][ T422] ? set_memory_nx (arch/x86/mm/pat/set_memory.c:2123 arch/x86/mm/pat/set_memory.c:2312) [ 19.377010][ T422] ? set_memory_ro (arch/x86/mm/pat/set_memory.c:2321) [ 19.377016][ T422] ? _raw_spin_unlock (arch/x86/include/asm/preempt.h:95 include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 19.377023][ T422] ? find_vmap_area (mm/vmalloc.c:2507) [ 19.377028][ T422] module_enable_text_rox (kernel/module/strict_rwx.c:40) [ 19.377036][ T422] complete_formation (kernel/module/main.c:3258) [ 19.377042][ T422] ? __might_fault (mm/memory.c:7142) [ 19.377046][ T422] ? post_relocation (kernel/module/main.c:3237) [ 19.377051][ T422] ? __might_fault (mm/memory.c:7142) [ 19.377054][ T422] ? init_build_id (kernel/module/kallsyms.c:?) [ 19.377061][ T422] load_module (kernel/module/main.c:3468) [ 19.377069][ T422] __se_sys_finit_module (kernel/module/main.c:? kernel/module/main.c:3713 kernel/module/main.c:3739 kernel/module/main.c:3723) [ 19.377074][ T422] ? __x64_sys_finit_module (kernel/module/main.c:3723) [ 19.377081][ T422] ? do_sys_openat2 (fs/open.c:1447) [ 19.377089][ T422] ? __ia32_sys_write (fs/read_write.c:754) [ 19.377095][ T422] ? do_sys_open (fs/open.c:1452) [ 19.377100][ T422] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 19.377104][ T422] do_syscall_64 (arch/x86/entry/syscall_64.c:?) [ 19.377111][ T422] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 19.377115][ T422] RIP: 0033:0x7f8d36fda779 [ 19.377120][ T422] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4f 86 0d 00 f7 d8 64 89 01 48 All code ======== 0: ff c3 inc %ebx 2: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 9: 00 00 00 c: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8b 0d 4f 86 0d 00 mov 0xd864f(%rip),%rcx # 0xd8689 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8b 0d 4f 86 0d 00 mov 0xd864f(%rip),%rcx # 0xd865f 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W [ 19.377123][ T422] RSP: 002b:00007ffe07ac3298 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 19.377128][ T422] RAX: ffffffffffffffda RBX: 000055b5fb23ac50 RCX: 00007f8d36fda779 [ 19.377131][ T422] RDX: 0000000000000000 RSI: 000055b5fb23aff0 RDI: 0000000000000005 [ 19.377134][ T422] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 19.377136][ T422] R10: 0000000000000000 R11: 0000000000000246 R12: 000055b5fb23aff0 [ 19.377139][ T422] R13: 0000000000040000 R14: 000055b5fb23ad80 R15: 0000000000000000 [ 19.377143][ T422] The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20251117/202511172257.ffd96dab-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki