============================= [ BUG: Invalid wait context ] 6.12.0-syzkaller-10296-gaaf20f870da0 #0 Not tainted ----------------------------- syz-execprog/5842 is trying to lock: ffff88813fffc298 (&zone->lock){..-.}-{3:3}, at: rmqueue_bulk mm/page_alloc.c:2307 [inline] ffff88813fffc298 (&zone->lock){..-.}-{3:3}, at: __rmqueue_pcplist+0x6bb/0x1600 mm/page_alloc.c:3001 other info that might help us debug this: context-{2:2} 2 locks held by syz-execprog/5842: #0: ffff8880b873ebd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:598 #1: ffff8880b8744c58 (&pcp->lock){+.+.}-{3:3}, at: spin_trylock include/linux/spinlock.h:361 [inline] #1: ffff8880b8744c58 (&pcp->lock){+.+.}-{3:3}, at: rmqueue_pcplist mm/page_alloc.c:3030 [inline] #1: ffff8880b8744c58 (&pcp->lock){+.+.}-{3:3}, at: rmqueue mm/page_alloc.c:3074 [inline] #1: ffff8880b8744c58 (&pcp->lock){+.+.}-{3:3}, at: get_page_from_freelist+0x350/0x2f80 mm/page_alloc.c:3471 stack backtrace: CPU: 1 UID: 0 PID: 5842 Comm: syz-execprog Not tainted 6.12.0-syzkaller-10296-gaaf20f870da0 #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+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:2307 [inline] __rmqueue_pcplist+0x6bb/0x1600 mm/page_alloc.c:3001 rmqueue_pcplist mm/page_alloc.c:3043 [inline] rmqueue mm/page_alloc.c:3074 [inline] get_page_from_freelist+0x3d2/0x2f80 mm/page_alloc.c:3471 __alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4751 alloc_pages_mpol_noprof+0x2c9/0x610 mm/mempolicy.c:2265 stack_depot_save_flags+0x566/0x8f0 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:3607 [inline] task_tick_fair+0x524/0x8e0 kernel/sched/fair.c:13054 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: 0033:0x112fe1e Code: 28 f4 ff ff 48 89 4c 24 30 48 89 44 24 38 48 8d 4c 24 30 48 89 4c 24 40 c6 44 24 17 01 48 8b 44 24 58 48 8b 5c 24 60 48 8b 00 <48> 8b 9b 90 00 00 00 e8 96 00 00 00 48 89 44 24 28 48 89 5c 24 18 RSP: 002b:000000c000d29978 EFLAGS: 00000246 RAX: 00000000019ee340 RBX: 000000c0002c4cc0 RCX: 0000000000000000 RDX: 000000000000000a RSI: 000000c000cea460 RDI: 000000000000000c RBP: 000000c000d299c0 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000088 R14: 000000c0009acfc0 R15: 000000c0001f9c00