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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 "WARNING:at_mm/gup.c:#try_grab_folio" on: commit: 8e628a9d6cc5c377ae06b7821f8280cd6ff2a20f ("[PATCH 3/5] mm: add static PMD zero page") url: https://github.com/intel-lab-lkp/linux/commits/Pankaj-Raghav/mm-move-huge_zero_page-declaration-from-huge_mm-h-to-mm-h/20250612-185248 patch link: https://lore.kernel.org/all/20250612105100.59144-4-p.raghav@samsung.com/ patch subject: [PATCH 3/5] mm: add static PMD zero page in testcase: trinity version: trinity-x86_64-ba2360ed-1_20241228 with following parameters: runtime: 300s group: group-03 nr_groups: 5 config: x86_64-randconfig-077-20250618 compiler: clang-20 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (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/202506201441.2f96266-lkp@intel.com [ 379.105772][ T4274] ------------[ cut here ]------------ [ 379.107617][ T4274] WARNING: CPU: 0 PID: 4274 at mm/gup.c:148 try_grab_folio (mm/gup.c:148 (discriminator 12)) [ 379.109660][ T4274] Modules linked in: [ 379.111018][ T4274] CPU: 0 UID: 65534 PID: 4274 Comm: trinity-c3 Not tainted 6.16.0-rc1-00003-g8e628a9d6cc5 #1 PREEMPT(voluntary) [ 379.113741][ T4274] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 379.116285][ T4274] RIP: 0010:try_grab_folio (mm/gup.c:148 (discriminator 12)) [ 379.117678][ T4274] Code: 00 48 01 1d 6f 95 3f 0b 48 c7 c7 38 95 55 8f be 08 00 00 00 e8 76 98 0f 00 48 01 1d 47 08 ac 0d e9 e4 fe ff ff e8 c5 2c cd ff <0f> 0b b8 f4 ff ff ff e9 d5 fe ff ff 44 89 f1 80 e1 07 80 c1 03 38 All code ======== 0: 00 48 01 add %cl,0x1(%rax) 3: 1d 6f 95 3f 0b sbb $0xb3f956f,%eax 8: 48 c7 c7 38 95 55 8f mov $0xffffffff8f559538,%rdi f: be 08 00 00 00 mov $0x8,%esi 14: e8 76 98 0f 00 call 0xf988f 19: 48 01 1d 47 08 ac 0d add %rbx,0xdac0847(%rip) # 0xdac0867 20: e9 e4 fe ff ff jmp 0xffffffffffffff09 25: e8 c5 2c cd ff call 0xffffffffffcd2cef 2a:* 0f 0b ud2 <-- trapping instruction 2c: b8 f4 ff ff ff mov $0xfffffff4,%eax 31: e9 d5 fe ff ff jmp 0xffffffffffffff0b 36: 44 89 f1 mov %r14d,%ecx 39: 80 e1 07 and $0x7,%cl 3c: 80 c1 03 add $0x3,%cl 3f: 38 .byte 0x38 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: b8 f4 ff ff ff mov $0xfffffff4,%eax 7: e9 d5 fe ff ff jmp 0xfffffffffffffee1 c: 44 89 f1 mov %r14d,%ecx f: 80 e1 07 and $0x7,%cl 12: 80 c1 03 add $0x3,%cl 15: 38 .byte 0x38 [ 379.122288][ T4274] RSP: 0018:ffffc90003eafc00 EFLAGS: 00010246 [ 379.123803][ T4274] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 379.125678][ T4274] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 379.127640][ T4274] RBP: 0000000000210008 R08: 0000000000000000 R09: 0000000000000000 [ 379.129505][ T4274] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 [ 379.131448][ T4274] R13: ffffea0000398000 R14: ffffea0000398034 R15: ffffea0000398000 [ 379.133373][ T4274] FS: 00007f8feed44740(0000) GS:0000000000000000(0000) knlGS:0000000000000000 [ 379.135522][ T4274] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 379.137151][ T4274] CR2: 000000000000006e CR3: 0000000157d77000 CR4: 00000000000406f0 [ 379.139063][ T4274] Call Trace: [ 379.139969][ T4274] [ 379.140739][ T4274] follow_huge_pmd (mm/gup.c:767) [ 379.141902][ T4274] __get_user_pages (mm/gup.c:993) [ 379.143221][ T4274] populate_vma_page_range (mm/gup.c:1926 (discriminator 1)) [ 379.144519][ T4274] __mm_populate (mm/gup.c:2029) [ 379.145559][ T4274] vm_mmap_pgoff (include/linux/mm.h:? mm/util.c:584) [ 379.146769][ T4274] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 379.148226][ T4274] do_syscall_64 (arch/x86/entry/syscall_64.c:?) [ 379.149357][ T4274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:473 (discriminator 3)) [ 379.150866][ T4274] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 379.152205][ T4274] RIP: 0033:0x7f8feee48719 [ 379.153354][ T4274] Code: 08 89 e8 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 90 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 b7 06 0d 00 f7 d8 64 89 01 48 All code ======== 0: 08 89 e8 5b 5d c3 or %cl,-0x3ca2a418(%rcx) 6: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) d: 00 00 00 10: 90 nop 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 b7 06 0d 00 mov 0xd06b7(%rip),%rcx # 0xd06f1 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 b7 06 0d 00 mov 0xd06b7(%rip),%rcx # 0xd06c7 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W [ 379.157899][ T4274] RSP: 002b:00007ffc477ec658 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 379.159864][ T4274] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f8feee48719 [ 379.161627][ T4274] RDX: 0000000000000004 RSI: 0000000000200000 RDI: 0000000000000000 [ 379.163409][ T4274] RBP: 00007f8fed769058 R08: ffffffffffffffff R09: 0000000000000000 [ 379.165255][ T4274] R10: 0000000004008862 R11: 0000000000000246 R12: 0000000000000009 [ 379.167147][ T4274] R13: 00007f8feed446c0 R14: 00007f8fed769058 R15: 00007f8fed769000 [ 379.169043][ T4274] [ 379.169891][ T4274] irq event stamp: 771243 [ 379.170971][ T4274] hardirqs last enabled at (771255): __console_unlock (arch/x86/include/asm/irqflags.h:42 arch/x86/include/asm/irqflags.h:119 arch/x86/include/asm/irqflags.h:159 kernel/printk/printk.c:344 kernel/printk/printk.c:2885) [ 379.173320][ T4274] hardirqs last disabled at (771278): __console_unlock (kernel/printk/printk.c:342 (discriminator 9) kernel/printk/printk.c:2885 (discriminator 9)) [ 379.175642][ T4274] softirqs last enabled at (771272): handle_softirqs (arch/x86/include/asm/preempt.h:27 kernel/softirq.c:426 kernel/softirq.c:607) [ 379.177979][ T4274] softirqs last disabled at (771263): __irq_exit_rcu (arch/x86/include/asm/jump_label.h:36 kernel/softirq.c:682) [ 379.180133][ T4274] ---[ end trace 0000000000000000 ]--- The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250620/202506201441.2f96266-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki