============================= [ BUG: Invalid wait context ] 6.13.0-rc3-syzkaller-gdfa94ce54f41 #0 Not tainted ----------------------------- syz.2.42/6146 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+0x4a2/0x2a90 mm/page_alloc.c:3001 other info that might help us debug this: context-{5:5} 3 locks held by syz.2.42/6146: #0: ffff8880b873e8d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598 #1: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #1: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #1: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: do_perf_sw_event kernel/events/core.c:10135 [inline] #1: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: ___perf_sw_event+0x1bd/0x730 kernel/events/core.c:10169 #2: ffff8880b8744958 (&pcp->lock){+.+.}-{3:3}, at: spin_trylock include/linux/spinlock.h:361 [inline] #2: ffff8880b8744958 (&pcp->lock){+.+.}-{3:3}, at: rmqueue_pcplist mm/page_alloc.c:3030 [inline] #2: ffff8880b8744958 (&pcp->lock){+.+.}-{3:3}, at: rmqueue mm/page_alloc.c:3074 [inline] #2: ffff8880b8744958 (&pcp->lock){+.+.}-{3:3}, at: get_page_from_freelist+0x7d3/0x37a0 mm/page_alloc.c:3471 stack backtrace: CPU: 1 UID: 0 PID: 6146 Comm: syz.2.42 Not tainted 6.13.0-rc3-syzkaller-gdfa94ce54f41 #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:2307 [inline] __rmqueue_pcplist+0x4a2/0x2a90 mm/page_alloc.c:3001 rmqueue_pcplist mm/page_alloc.c:3043 [inline] rmqueue mm/page_alloc.c:3074 [inline] get_page_from_freelist+0x886/0x37a0 mm/page_alloc.c:3471 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751 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 __perf_event_overflow+0x78d/0xdc0 kernel/events/core.c:9901 perf_swevent_event+0x317/0x680 do_perf_sw_event kernel/events/core.c:10142 [inline] ___perf_sw_event+0x4f3/0x730 kernel/events/core.c:10169 __perf_sw_event_sched include/linux/perf_event.h:1497 [inline] perf_event_task_sched_out include/linux/perf_event.h:1530 [inline] prepare_task_switch kernel/sched/core.c:5173 [inline] context_switch kernel/sched/core.c:5316 [inline] __schedule+0x23df/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 exit_to_user_mode_loop kernel/entry/common.c:102 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] irqentry_exit_to_user_mode+0x5e/0x250 kernel/entry/common.c:231 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0033:0x7f7077585d31 Code: 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 48 3d 01 f0 ff ff 73 01 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f RSP: 002b:00007f7078430038 EFLAGS: 00000207 RAX: 000000000000001c RBX: 00007f7077775fa0 RCX: 00007f7077585d29 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000000 RBP: 00007f7077601b08 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f7077775fa0 R15: 00007fffe31d6d08