============================= [ BUG: Invalid wait context ] 6.12.0-rc5-next-20241030-syzkaller #0 Not tainted ----------------------------- syz-executor/5832 is trying to lock: ffffffff8ea733d8 (stack_list_lock){-.-.}-{3:3}, at: add_stack_record_to_list mm/page_owner.c:182 [inline] ffffffff8ea733d8 (stack_list_lock){-.-.}-{3:3}, at: inc_stack_record_count mm/page_owner.c:214 [inline] ffffffff8ea733d8 (stack_list_lock){-.-.}-{3:3}, at: __set_page_owner+0x5cb/0x800 mm/page_owner.c:329 other info that might help us debug this: context-{2:2} 1 lock held by syz-executor/5832: #0: ffff8880b863e7d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598 stack backtrace: CPU: 0 UID: 0 PID: 5832 Comm: syz-executor Not tainted 6.12.0-rc5-next-20241030-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_lock_invalid_wait_context kernel/locking/lockdep.c:4826 [inline] check_wait_context kernel/locking/lockdep.c:4898 [inline] __lock_acquire+0x15a8/0x2100 kernel/locking/lockdep.c:5176 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 add_stack_record_to_list mm/page_owner.c:182 [inline] inc_stack_record_count mm/page_owner.c:214 [inline] __set_page_owner+0x5cb/0x800 mm/page_owner.c:329 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1541 prep_new_page mm/page_alloc.c:1549 [inline] get_page_from_freelist+0x3725/0x3870 mm/page_alloc.c:3495 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4771 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265 stack_depot_save_flags+0x666/0x830 lib/stackdepot.c:627 kasan_save_stack+0x4f/0x60 mm/kasan/common.c:48 __kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:544 task_work_add+0xd9/0x490 kernel/task_work.c:77 task_tick_numa kernel/sched/fair.c:3607 [inline] task_tick_fair+0x58c/0x7b0 kernel/sched/fair.c:13054 sched_tick+0x219/0x610 kernel/sched/core.c:5606 update_process_times+0x202/0x230 kernel/time/timer.c:2523 tick_sched_handle kernel/time/tick-sched.c:276 [inline] tick_nohz_handler+0x37c/0x500 kernel/time/tick-sched.c:297 __run_hrtimer kernel/time/hrtimer.c:1691 [inline] __hrtimer_run_queues+0x551/0xd50 kernel/time/hrtimer.c:1755 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1817 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0033:0x7fb86c1463e5 Code: e0 e9 a6 fd ff ff c5 fe 6f 4e 20 f7 c1 00 0e 00 00 75 67 49 89 c9 48 8d 4c 16 ff 48 83 ce 3f 4a 8d 7c 0e 01 48 29 f1 48 ff c6 a4 c4 c1 7e 7f 00 c4 c1 7e 7f 48 20 e9 70 fd ff ff 66 0f 1f 84 RSP: 002b:00007ffd65adc708 EFLAGS: 00010212 RAX: 00007fb866ac8010 RBX: 00007fb86863e010 RCX: 0000000000c90af1 RDX: 0000000000dbaae1 RSI: 00007fb868768000 RDI: 00007fb866bf2000 RBP: 000055557b7e3ea8 R08: 00007fb866ac8010 R09: fffffffffe48a000 R10: 0000000000000022 R11: 0000000000000246 R12: 00007fb867882af1 R13: 0000000000dbbae1 R14: 00007fb866ac8010 R15: 0000000001b755c2