============================= [ BUG: Invalid wait context ] 6.13.0-rc4-syzkaller-00054-gd6ef8b40d075 #0 Not tainted ----------------------------- syz.0.25/6043 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} 1 lock held by syz.0.25/6043: #0: ffff8880b8744d98 (&pcp->lock){+.+.}-{3:3}, at: spin_trylock include/linux/spinlock.h:361 [inline] #0: ffff8880b8744d98 (&pcp->lock){+.+.}-{3:3}, at: rmqueue_pcplist mm/page_alloc.c:3032 [inline] #0: ffff8880b8744d98 (&pcp->lock){+.+.}-{3:3}, at: rmqueue mm/page_alloc.c:3076 [inline] #0: ffff8880b8744d98 (&pcp->lock){+.+.}-{3:3}, at: get_page_from_freelist+0x350/0x2f80 mm/page_alloc.c:3473 stack backtrace: CPU: 1 UID: 0 PID: 6043 Comm: syz.0.25 Not tainted 6.13.0-rc4-syzkaller-00054-gd6ef8b40d075 #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: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+0x223/0x25b0 mm/page_alloc.c:4753 alloc_pages_mpol_noprof+0x2c9/0x610 mm/mempolicy.c:2269 stack_depot_save_flags+0x8e0/0x9e0 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 __run_posix_cpu_timers kernel/time/posix-cpu-timers.c:1223 [inline] run_posix_cpu_timers+0x69f/0x7d0 kernel/time/posix-cpu-timers.c:1422 update_process_times+0x1a1/0x2d0 kernel/time/timer.c:2526 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: 0033:0x7fac5145cb1c Code: 66 0f 1f 44 00 00 69 3d 96 8b e4 00 e8 03 00 00 48 8d 1d 97 94 31 00 e8 72 91 12 00 eb 0c 48 81 c3 e0 00 00 00 48 39 eb 74 24 <80> 7b 20 00 74 ee 8b 43 0c 85 c0 74 e7 48 89 df 48 81 c3 e0 00 00 RSP: 002b:00007ffeb7520010 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 00007fac51775fa0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000055558af7c808 RBP: 00007fac51777ba0 R08: 0000000000000000 R09: 00007fac52372000 R10: 0000000000000000 R11: 0000000000000293 R12: 000000000001655d R13: 00007fac51776080 R14: 0000000000000032 R15: ffffffffffffffff