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 qvqDlsP4 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 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 "kernel_BUG_at_include/linux/page-flags.h" on: commit: 504f40f6bda6afb3c5dc9924f74c583b6e394554 ("mm: page_reporting: skip redundant zeroing of host-zeroed reported pages") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master [test failed on linux-next/master a225caacc36546a09586e3ece36c0313146e7da9] in testcase: boot config: i386-randconfig-002-20251019 compiler: gcc-14 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/202606051117.7b999010-lkp@intel.com [ 0.218502][ T0] ------------[ cut here ]------------ [ 0.219180][ T0] kernel BUG at include/linux/page-flags.h:688! [ 0.219979][ T0] Oops: invalid opcode: 0000 [#1] [ 0.220604][ T0] CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted 7.0.0-rc2-00009-g504f40f6bda6 #1 PREEMPTLAZY 25f758a7ca9ac6ee8258fdb39cd5b7566f523e33 [ 0.222356][ T0] EIP: post_alloc_hook (linux/page-flags.h:688 (discriminator 1) page_alloc.c:1868 (discriminator 1)) [ 0.222995][ T0] Code: 83 7d f0 1f 0f 87 10 01 00 00 83 c4 10 5b 5e 5f 5d 31 c0 31 d2 31 c9 c3 8d b6 00 00 00 00 ba 44 7a 3c 9d 89 f0 e8 f4 31 fc ff <0f> 0b b8 14 5e a0 9d e8 90 53 cb ff 2e 8d b4 26 00 00 00 00 8b 45 All code ======== 0: 83 7d f0 1f cmpl $0x1f,-0x10(%rbp) 4: 0f 87 10 01 00 00 ja 0x11a a: 83 c4 10 add $0x10,%esp d: 5b pop %rbx e: 5e pop %rsi f: 5f pop %rdi 10: 5d pop %rbp 11: 31 c0 xor %eax,%eax 13: 31 d2 xor %edx,%edx 15: 31 c9 xor %ecx,%ecx 17: c3 ret 18: 8d b6 00 00 00 00 lea 0x0(%rsi),%esi 1e: ba 44 7a 3c 9d mov $0x9d3c7a44,%edx 23: 89 f0 mov %esi,%eax 25: e8 f4 31 fc ff call 0xfffffffffffc321e 2a:* 0f 0b ud2 <-- trapping instruction 2c: b8 14 5e a0 9d mov $0x9da05e14,%eax 31: e8 90 53 cb ff call 0xffffffffffcb53c6 36: 2e 8d b4 26 00 00 00 cs lea 0x0(%rsi,%riz,1),%esi 3d: 00 3e: 8b .byte 0x8b 3f: 45 rex.RB Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: b8 14 5e a0 9d mov $0x9da05e14,%eax 7: e8 90 53 cb ff call 0xffffffffffcb539c c: 2e 8d b4 26 00 00 00 cs lea 0x0(%rsi,%riz,1),%esi 13: 00 14: 8b .byte 0x8b 15: 45 rex.RB [ 0.225477][ T0] EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000000 [ 0.226363][ T0] ESI: f4102340 EDI: 9dc37ba0 EBP: 9d633e20 ESP: 9d633e04 [ 0.227277][ T0] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00210046 [ 0.228243][ T0] CR0: 80050033 CR2: ffd99000 CR3: 1dd74000 CR4: 00000090 [ 0.229132][ T0] Call Trace: [ 0.229534][ T0] get_page_from_freelist (page_alloc.c:1938 page_alloc.c:4006) [ 0.230201][ T0] ? __this_cpu_preempt_check (smp_processor_id.c:64) [ 0.230883][ T0] __alloc_frozen_pages_noprof (page_alloc.c:5297) [ 0.231617][ T0] allocate_slab (slub.c:3269 (discriminator 2) slub.c:3458 (discriminator 2)) [ 0.232174][ T0] refill_objects (slub.c:3516 slub.c:7153) [ 0.232743][ T0] __pcs_replace_empty_main (slub.c:2818 slub.c:2839 slub.c:4602) [ 0.233433][ T0] ? mm_alloc (fork.c:1157 (discriminator 2)) [ 0.233945][ T0] kmem_cache_alloc_noprof (slub.c:4695 slub.c:4829 slub.c:4851) [ 0.234624][ T0] ? kmem_cache_alloc_noprof (slub.c:4689 (discriminator 2) slub.c:4829 (discriminator 2) slub.c:4851 (discriminator 2)) [ 0.235315][ T0] mm_alloc (fork.c:1157 (discriminator 2)) [ 0.235814][ T0] poking_init (x86/mm/init.c:824) [ 0.236341][ T0] start_kernel (main.c:1072) [ 0.237088][ T0] i386_start_kernel (x86/kernel/head32.c:79) [ 0.237969][ T0] startup_32_smp (x86/kernel/head_32.S:292) [ 0.238817][ T0] Modules linked in: [ 0.239561][ T0] ---[ end trace 0000000000000000 ]--- [ 0.240564][ T0] EIP: post_alloc_hook (linux/page-flags.h:688 (discriminator 1) page_alloc.c:1868 (discriminator 1)) [ 0.241521][ T0] Code: 83 7d f0 1f 0f 87 10 01 00 00 83 c4 10 5b 5e 5f 5d 31 c0 31 d2 31 c9 c3 8d b6 00 00 00 00 ba 44 7a 3c 9d 89 f0 e8 f4 31 fc ff <0f> 0b b8 14 5e a0 9d e8 90 53 cb ff 2e 8d b4 26 00 00 00 00 8b 45 All code ======== 0: 83 7d f0 1f cmpl $0x1f,-0x10(%rbp) 4: 0f 87 10 01 00 00 ja 0x11a a: 83 c4 10 add $0x10,%esp d: 5b pop %rbx e: 5e pop %rsi f: 5f pop %rdi 10: 5d pop %rbp 11: 31 c0 xor %eax,%eax 13: 31 d2 xor %edx,%edx 15: 31 c9 xor %ecx,%ecx 17: c3 ret 18: 8d b6 00 00 00 00 lea 0x0(%rsi),%esi 1e: ba 44 7a 3c 9d mov $0x9d3c7a44,%edx 23: 89 f0 mov %esi,%eax 25: e8 f4 31 fc ff call 0xfffffffffffc321e 2a:* 0f 0b ud2 <-- trapping instruction 2c: b8 14 5e a0 9d mov $0x9da05e14,%eax 31: e8 90 53 cb ff call 0xffffffffffcb53c6 36: 2e 8d b4 26 00 00 00 cs lea 0x0(%rsi,%riz,1),%esi 3d: 00 3e: 8b .byte 0x8b 3f: 45 rex.RB Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: b8 14 5e a0 9d mov $0x9da05e14,%eax 7: e8 90 53 cb ff call 0xffffffffffcb539c c: 2e 8d b4 26 00 00 00 cs lea 0x0(%rsi,%riz,1),%esi 13: 00 14: 8b .byte 0x8b 15: 45 rex.RB The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20260605/202606051117.7b999010-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki