============================= [ BUG: Invalid wait context ] 6.13.0-syzkaller-01005-gb9d8a295ed6b #0 Not tainted ----------------------------- udevd/5845 is trying to lock: ffff88813fffc298 (&zone->lock){-.-.}-{3:3}, at: rmqueue_bulk mm/page_alloc.c:2309 [inline] ffff88813fffc298 (&zone->lock){-.-.}-{3:3}, at: __rmqueue_pcplist+0x6bb/0x1600 mm/page_alloc.c:3003 other info that might help us debug this: context-{2:2} 2 locks held by udevd/5845: #0: ffff8880b863ec18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:598 #1: ffff8880b8644c98 (&pcp->lock){+.+.}-{3:3}, at: spin_trylock include/linux/spinlock.h:361 [inline] #1: ffff8880b8644c98 (&pcp->lock){+.+.}-{3:3}, at: rmqueue_pcplist mm/page_alloc.c:3032 [inline] #1: ffff8880b8644c98 (&pcp->lock){+.+.}-{3:3}, at: rmqueue mm/page_alloc.c:3076 [inline] #1: ffff8880b8644c98 (&pcp->lock){+.+.}-{3:3}, at: get_page_from_freelist+0x350/0x2f80 mm/page_alloc.c:3473 stack backtrace: CPU: 0 UID: 0 PID: 5845 Comm: udevd Not tainted 6.13.0-syzkaller-01005-gb9d8a295ed6b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 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+0x878/0x3c40 kernel/locking/lockdep.c:5176 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162 rmqueue_bulk mm/page_alloc.c:2309 [inline] __rmqueue_pcplist+0x6bb/0x1600 mm/page_alloc.c:3003 rmqueue_pcplist mm/page_alloc.c:3045 [inline] rmqueue mm/page_alloc.c:3076 [inline] get_page_from_freelist+0x3d2/0x2f80 mm/page_alloc.c:3473 __alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753 alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269 stack_depot_save_flags+0x8aa/0x9c0 lib/stackdepot.c:627 kasan_save_stack+0x42/0x60 mm/kasan/common.c:48 __kasan_record_aux_stack+0xba/0xd0 mm/kasan/generic.c:544 task_work_add+0xc0/0x3b0 kernel/task_work.c:77 task_tick_numa kernel/sched/fair.c:3611 [inline] task_tick_fair+0x524/0x8e0 kernel/sched/fair.c:12996 sched_tick+0x1dd/0x4f0 kernel/sched/core.c:5652 update_process_times+0x19c/0x2d0 kernel/time/timer.c:2524 tick_sched_handle kernel/time/tick-sched.c:276 [inline] tick_nohz_handler+0x376/0x530 kernel/time/tick-sched.c:297 __run_hrtimer kernel/time/hrtimer.c:1739 [inline] __hrtimer_run_queues+0x5fb/0xae0 kernel/time/hrtimer.c:1803 hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1865 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x10f/0x400 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: 0033:0x7ff056148f6b Code: d2 74 3d 48 8d 75 10 4c 8b 24 f0 41 f6 c4 0f 74 0c 48 8d 3d 4b cf 0e 00 e8 dd cd ff ff 4c 89 e1 ff ca 48 c1 e9 0c 49 33 0c 24 <48> 89 0c f0 66 89 14 68 49 c7 44 24 08 00 00 00 00 e9 22 01 00 00 RSP: 002b:00007fffb9678850 EFLAGS: 00000202 RAX: 0000557eb3175010 RBX: 0000557eb3175580 RCX: 0000557eb31b40d0 RDX: 0000000000000006 RSI: 000000000000002f RDI: 0000000000000217 RBP: 000000000000001f R08: 0000557eb31a6450 R09: fffffffffffffe98 R10: 0000000000000007 R11: 0000000000000012 R12: 0000557eb31a80c0 R13: 0000000000000200 R14: 0000557eb3183a50 R15: 0000557e80292401