============================= [ BUG: Invalid wait context ] 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 Not tainted ----------------------------- udevd/5208 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+0x4a2/0x2a90 mm/page_alloc.c:3003 other info that might help us debug this: context-{2:2} 2 locks held by udevd/5208: #0: ffff8880b863e8d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598 #1: ffff8880b8644958 (&pcp->lock){+.+.}-{3:3}, at: spin_trylock include/linux/spinlock.h:361 [inline] #1: ffff8880b8644958 (&pcp->lock){+.+.}-{3:3}, at: rmqueue_pcplist mm/page_alloc.c:3032 [inline] #1: ffff8880b8644958 (&pcp->lock){+.+.}-{3:3}, at: rmqueue mm/page_alloc.c:3076 [inline] #1: ffff8880b8644958 (&pcp->lock){+.+.}-{3:3}, at: get_page_from_freelist+0x7d3/0x37a0 mm/page_alloc.c:3473 stack backtrace: CPU: 0 UID: 0 PID: 5208 Comm: udevd Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #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 rmqueue_bulk mm/page_alloc.c:2309 [inline] __rmqueue_pcplist+0x4a2/0x2a90 mm/page_alloc.c:3003 rmqueue_pcplist mm/page_alloc.c:3045 [inline] rmqueue mm/page_alloc.c:3076 [inline] get_page_from_freelist+0x886/0x37a0 mm/page_alloc.c:3473 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4753 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2269 stack_depot_save_flags+0x72d/0x940 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:3616 [inline] task_tick_fair+0x58c/0x7b0 kernel/sched/fair.c:13101 sched_tick+0x21e/0x660 kernel/sched/core.c:5652 update_process_times+0x276/0x2f0 kernel/time/timer.c:2524 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:1739 [inline] __hrtimer_run_queues+0x551/0xd30 kernel/time/hrtimer.c:1803 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865 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: 0033:0x7f7f438adee8 Code: d2 75 1b 48 c7 47 08 00 00 00 00 87 17 ff ca 7e 0d 89 44 24 08 e8 6a c8 00 00 8b 44 24 08 48 81 c4 e8 00 00 00 5b 5d c3 41 54 <55> 48 89 fd 53 48 81 ec 90 00 00 00 83 7f 70 00 0f 88 91 00 00 00 RSP: 002b:00007ffdcddfc970 EFLAGS: 00000202 RAX: 00007f7f439ee460 RBX: 00000000ffffffff RCX: 0000000000000c00 RDX: 00007f7f439ed860 RSI: 00000000ffffffff RDI: 000055e73aa284c0 RBP: 000055e73aa284c0 R08: 0000000000000000 R09: 0000000000000001 R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000000006 R13: 0000000000000006 R14: 000055e73aa284c0 R15: 0000000000000000